CN107352689A - A kind of desulfurization wastewater energy-efficient treatment system and method - Google Patents
A kind of desulfurization wastewater energy-efficient treatment system and method Download PDFInfo
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- CN107352689A CN107352689A CN201710680563.3A CN201710680563A CN107352689A CN 107352689 A CN107352689 A CN 107352689A CN 201710680563 A CN201710680563 A CN 201710680563A CN 107352689 A CN107352689 A CN 107352689A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 91
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 47
- 230000023556 desulfurization Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000005189 flocculation Methods 0.000 claims abstract description 75
- 230000016615 flocculation Effects 0.000 claims abstract description 75
- 238000006243 chemical reaction Methods 0.000 claims abstract description 73
- 238000001914 filtration Methods 0.000 claims abstract description 62
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 20
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 16
- 238000005352 clarification Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 98
- 239000006228 supernatant Substances 0.000 claims description 60
- 239000010802 sludge Substances 0.000 claims description 39
- 238000012545 processing Methods 0.000 claims description 36
- 239000000725 suspension Substances 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 13
- 238000006386 neutralization reaction Methods 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 11
- 239000013049 sediment Substances 0.000 claims description 11
- 125000001741 organic sulfur group Chemical group 0.000 claims description 9
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 230000029219 regulation of pH Effects 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims 1
- 238000005273 aeration Methods 0.000 claims 1
- 229910021645 metal ion Inorganic materials 0.000 claims 1
- 150000002500 ions Chemical class 0.000 abstract description 33
- 238000004065 wastewater treatment Methods 0.000 abstract description 30
- 239000002253 acid Substances 0.000 abstract description 12
- 229910052736 halogen Inorganic materials 0.000 abstract description 9
- 150000002367 halogens Chemical class 0.000 abstract description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229920002401 polyacrylamide Polymers 0.000 description 16
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000005276 aerator Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 acryloyl Amine Chemical class 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000013327 media filtration Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention relates to field of waste water treatment, more particularly to a kind of desulfurization wastewater treatment system and method, and the system and method is particularly suitable for waste water caused by wet desulphurization in environmental protection industry (epi).The system of the present invention includes wastewater collection pond, neutralizing device, reaction flocculation apparatus, acceleration clarifying equipment, PH readjustments equipment, Strong oxdiative equipment, multi-medium filtering equipment.Each step parameter of the system and method for the present invention, each equipment are rationally set, and are acted synergistically, are enhanced water treatment effect；By flocculation reaction, accelerate the series of processes such as clarification, Strong oxdiative, multi-medium filtering, the environmentally harmful material in waste water can be removed, such as：Acid ion, halogen family ion, fluorine ion, light/heavy metal ion, and reduce COD value, obtaining can emission compliance waste water at once.
Description
Technical field
The present invention relates to field of waste water treatment, more particularly to a kind of desulfurization wastewater treatment system and method, the system and side
Method is particularly suitable for waste water caused by wet desulphurization in environmental protection industry (epi).
Background technology
Energy-efficient is the new demand new standard of social development, with the continuous improvement of national requirements for environmental protection, wet desulphurization
During caused waste water although need to meet《Steel and iron industry pollution discharge standard》Table is direct in (GB 13456-2012)
Discharge standard, but it is the first pollutant for requiring strictly to control in national environmental standard to have many materials in desulfurization wastewater.
The characteristics of desulfurization wastewater, has：In faintly acid；Suspension is high；(Chemical Oxygen Demand, are abbreviated as COD
COD it is) high；Containing heavy metal ion such as Hg, Pb etc..
At present, unsatisfactory for the treatment effect of desulfurization wastewater, processed waste water is not up to standard：For desulfurization wastewater processing
Equipment fault rate it is big；Chemical feeding quantity is big in processing procedure；Caused sludge can not be handled in processing procedure.Therefore, at present
Scientific research and practice in, it is necessary to a kind for the treatment of effeciency it is high, not easy break-down, less developer, sludge quantity reduction desulfurization wastewater at
Manage system and method.
The content of the invention
The present invention provides a kind of desulfurization wastewater treatment system and method, and the system and method is particularly suitable in environmental protection industry (epi)
Waste water caused by wet desulphurization, treatment effeciency is high, fault rate is low, sludge quantity caused by less developer, system is few.
The present invention is achieved by the following technical solutions：
A kind of desulfurization wastewater energy-efficient treatment system, including wastewater collection pond, neutralizing device, reaction flocculation apparatus, accelerate it is clear
Clear equipment, PH readjustments equipment, Strong oxdiative equipment, multi-medium filtering equipment, wherein：
The wastewater collection pond, delivery port are connected with the neutralizing device, and mud mouth is connected with wet desulfurization system；For
Desulfurization wastewater is collected, and desulfurization wastewater is subjected to precipitation process, to obtain one-level supernatant and sediment；
The neutralizing device, input are connected with the delivery port of the wastewater collection pond, and output end is flocculated with the reaction
The input connection of equipment；For carrying out PH regulation processing to the one-level supernatant, with the supernatant after adjusted pH value；
The reaction flocculation apparatus, input are connected with the output end for neutralizing the equipment, and output end adds with described
The input connection of fast clarifying equipment；For carrying out flocculation reaction to the supernatant after the regulation pH value, to obtain suspension；
The acceleration clarifying equipment, input are connected with the output end of the reaction flocculation apparatus, output end and the PH
Adjust back the input connection of equipment；For carrying out Accelerated subsidence processing to the suspension, to obtain secondary supernatant and precipitation
The sludge to get off；
The PH adjusts back equipment, and input is connected with the output end of the acceleration clarifying equipment, output end and the strong oxygen
Change the input connection of equipment；For carrying out PH readjustment processing to the secondary supernatant, to obtain the liquid after readjustment pH value；
The Strong oxdiative equipment, input are connected with the output end of PH readjustment equipment, output end and the multimedium
The input connection of filter plant；For carrying out Strong oxdiative processing to the liquid after the readjustment pH value, after obtaining Strong oxdiative
Liquid；
The multi-medium filtering equipment, input are connected with the output end of the Strong oxdiative equipment, output end and clear water reserviors
Connection；For carrying out filtration treatment to the liquid after the Strong oxdiative, to obtain clear water.
In a preferred embodiment, the wastewater collection pond is additionally provided with water inlet, the water inlet and the clear water reserviors
Connection, the clear water of the below standard part for collecting the clear water reserviors discharge.
In a preferred embodiment, it is provided with aerator in the neutralizing device.
In a preferred embodiment, the flocculation apparatus includes：The reaction chamber that is sequentially connected, flocculation tanks, help solidifying case；Institute
State the heavy metal ion in the supernatant after reaction chamber is used to catching the regulation pH value, the flocculation tanks and described help solidifying case to use
In assembling the suspended particulate in the reaction chamber water outlet in order to precipitating.
In a preferred embodiment, the acceleration clarifying equipment is provided with bucket；The bucket is used to collect the sedimentation
The sludge to get off, and timing is discharged into sludge-tank.
In a preferred embodiment, the input of the output end of the sludge-tank and plate and frame filter press connects；The plate
Frame filter press is used to the sludge to settle down carrying out press filtration processing, obtains press filtration sludge and press filtration waste liquid；The press filtration
Sludge is transported outward, and the press filtration waste liquid delivery outlet of the plate and frame filter press is connected with the neutralizing device, the press filtration waste liquid is returned
It is back to the neutralizing device.
In a preferred embodiment, the multi-medium filtering equipment, including more medium filter, it is situated between preferably 2 more
Mass filter.
A kind of desulfurization wastewater energy-saving processing method, comprises the following steps：
Settling step：Desulfurization wastewater is subjected to precipitation process in wastewater collection pond, obtains one-level supernatant and sediment；
Neutralization procedure：PH conditioning agents are added into the one-level supernatant, PH regulation processing is carried out, obtains akaline liquid；
Preferably, the PH of the akaline liquid is 9.0；
Flocculation reaction step：Organic sulfur, flocculant and flocculation aid are added into the akaline liquid, carries out heavy metal ion
Seizure and flocculation reaction, obtain suspension；
Accelerate clarification steps：The suspension is subjected to Accelerated subsidence processing, secondary supernatant is obtained and settles down
Sludge；
PH adjusts back step：PH conditioning agents are added into the secondary supernatant, carry out PH readjustment processing, obtaining pH value is
7.5-8 liquid；
Strong oxdiative step：Strong oxidizer is added into the liquid that the pH value is 7.5-8, Strong oxdiative processing is carried out, obtains
Liquid after Strong oxdiative；
Filtration step：Liquid after the Strong oxdiative is subjected to filtration treatment, obtains clear water.
In a preferred embodiment, in the settling step, the sediment passes through the gypsum in wet desulphurization system
Cyclone carries out dewater treatment.
In a preferred embodiment, in the neutralization procedure, the PH conditioning agents are aqua calcis；
Preferably, in the flocculation reaction step, the flocculant is aluminium polychloride, and the flocculation aid is acryloyl
Amine；
Preferably, in the acceleration clarification steps, the sludge to settle down is discharged into sludge-tank, then carries out at press filtration
Reason, obtains press filtration sludge and press filtration waste liquid；The press filtration sludge is transported outward, and the press filtration waste liquid converges with the one-level supernatant
Close, carry out the PH regulations processing, then by the flocculation reaction step, acceleration clarification steps, PH readjustments step, Strong oxdiative step
Suddenly, filtration step, clear water is obtained；
Preferably, in the PH readjustments step, the PH conditioning agents are hydrochloric acid solution；
Preferably, in the Strong oxdiative step, the strong oxidizer is liquor natrii hypochloritis；
Preferably, in the filtration step, part up to standard is directly discharged in the clear water, and below standard part returns to institute
State and continue circular treatment in wastewater collection pond.
Compared with prior art, the present invention has the advantages that：
1st, each step parameter of system and method for the invention, each equipment are rationally set, and are acted synergistically, are enhanced useless
Water treatment efficiency.
2nd, the present invention can be removed useless by series of processes such as flocculation reaction, acceleration clarification, Strong oxdiative, multi-medium filterings
Environmentally harmful material in water, such as：Acid ion, halogen family ion, fluorine ion, light/heavy metal ion, and COD value is reduced,
Obtain that emission compliance waste water, the waste water after handling using the inventive method, COD 50mg/l can be not more than at once, ss is not more than
30mg/l, Pb are not more than 1mg/l, F-No more than 10mg/l.
3rd, the sludge of sediment fraction is taken off by gypsum cyclone from Waste Water Treatment in wastewater collection pond of the invention
From, can reduce the present invention Waste Water Treatment solid content.
4th, in the clear water obtained after media filtration device of the invention processing, part not up to standard returns to wastewater collection
Pond, into next round processing, to ensure waste water by thorough processing until up to standard.
Brief description of the drawings
Fig. 1 is the schematic diagram of desulfurization wastewater energy-efficient treatment system provided by the invention.
Wherein, description of reference numerals is as follows shown in figure：
1st, wastewater collection pond；2nd, case is neutralized；31st, reaction chamber, 32, flocculation tanks；33rd, solidifying case is helped；4th, mechanical accelerating purifying device；
5th, PH adjusts back case；6th, Strong oxdiative case；71st, more medium filter A, 72, more medium filter B；8th, clear water reserviors；9th, sludge-tank；10、
Aerator；11st, waste water lifting pump；12nd, sludge pump；13rd, waste water filtering pump；14th, clarified water pump；15th, gypsum cyclone；16th, sheet frame
Filter press.
Embodiment
For a better understanding of the present invention, below in conjunction with the accompanying drawings, further illustrate the present invention's using embodiment
Technical scheme and its effect.
As shown in figure 1, the desulfurization wastewater energy-efficient treatment system of the present invention includes wastewater collection pond 1, the neutralization being sequentially connected
Equipment --- neutralizes case 2, reaction flocculation apparatus (including reaction chamber 31, flocculation tanks 32, help solidifying case 33), accelerates clarifying equipment ---
Strong oxdiative case 6, multi-medium filtering are set for mechanical accelerating purifying device 4, PH readjustment equipment --- PH readjustments case 5, Strong oxdiative equipment ---
Standby (including more medium filter A 71, more medium filter B 72).Above part is illustrated one by one below.
Wastewater collection pond 1, its delivery port are connected with neutralizing case 2, and its mud mouth is connected with wet desulfurization system；Desulfurization wastewater
It is collected into wastewater collection pond 1 and carries out water quality adjustment, after the precipitation of certain time, obtains one-level supernatant and sediment；Should
Each equipment that one-level supernatant is squeezed into by waste water lifting pump 11 in follow-up processing Waste Water Treatment；Sediment (its
In predominantly sludge) by mud mouth by sludge delivery pump 12 input wet desulfurization system gypsum cyclone 15 separately locate
Reason, the solid content of the energy-efficient treatment system can be reduced, improve the treatment effeciency of waste water；Preferably, the wastewater collection pond 1 is also set
Have the water inlet being connected with clear water reserviors 8, for receive clear water reserviors 8 discharge do not reach discharge standard clear water, in the present system after
Continuous circular treatment is until the water outlet in clear water reserviors 8 reaches discharge standard.
Case 2 is neutralized, its input is connected with the delivery port of wastewater collection pond 1, output end and the input of reaction flocculation apparatus
End connection；In this case, pH value conditioning agent is added into one-level supernatant, PH regulation processing is carried out, after adjusted pH value
Liquid (i.e. akaline liquid)；Preferably, aerator 10 is provided with the neutralization case 2, makes the liquid-to-air in neutralization case 2 abundant
Contact, related substances is fully oxidized, drops low cod value, thus neutralizes and sets aerator 10 to reduce subsequent reactions wadding in case 2
The usage amount of solidifying equipment Chinese medicine.In the neutralization case 2, acid ion and halogen family ion are neutralized, and carry out what is separated from waste water
Prepare；Gently, heavy metal ion and fluorine ion are separated from waste water, or carry out the preparation of separation.
Flocculation apparatus is reacted, its input is connected with neutralizing the output end of case 2, output end and mechanical accelerating purifying device 4
Input connects；The equipment is used to the liquid after regulation PH carrying out flocculation reaction；Preferably, the reaction flocculation apparatus includes
The reaction chamber 31 that connects successively, flocculation tanks 32, help solidifying case 33；Liquid after regulation PH first passes through water inlet and flows into reaction chamber
31, organic sulfur is added wherein, is flowed out after reacted from delivery port, then flocculation tanks 32 are flowed into by water inlet, add wherein
Enter flocculant and certain residence time flows out from delivery port afterwards, then flowed into through water inlet and help solidifying case 33, addition wherein helps solidifying
Suspension is formed after agent and certain residence time, then is flowed out from delivery port, flows to next equipment.React in flocculation apparatus, acid group
The inorganic salts that ion, halogen family ion are formed are gathered into larger particles and precipitated, so as to realize separation of solid and liquid；Gently, heavy metal
Complex compound, crystallization and the gelatinous precipitate formed after ion and the neutralized case of fluorine ion and reaction chamber is also gathered into larger particles and sunk
Shallow lake is got off, so as to further realize separation of solid and liquid.In an embodiment of the present invention, it is fast in order to accelerate to react the processing of flocculation apparatus
Degree carries out fully oxidized to related substances in water body simultaneously, reaction chamber 31, flocculation tanks 32, helps in solidifying case 33 and is equipped with agitator
(mark is in Fig. 1) is used to stir content in each case, the agitator of preferably double-deck paddle；In order to control reaction chamber
31st, flocculation tanks 32, the reaction helped in solidifying case 33 are fully carried out, and liquid level meter (mark is in Fig. 1) is provided with above-mentioned casing and is used for
The start and stop of associated pump (not shown) are controlled in the processing system operation of the present invention using liquid level；Specifically, above-mentioned associated pump
For filter pump, as liquid level 0.3m below casing top, pump stops, and when liquid level is apart from 0.5 meter of bottom, pump opens, and meets that system can
Continuous operation.
Mechanical accelerating purifying device 4, the output end of its input and reaction flocculation apparatus (preferably help the water outlet of solidifying case 33
Mouthful) connect, its output end is connected with the input of PH readjustment casees 5；The suspension is flowed into mechanical accelerating purifying device 4, through sedimentation
It is divided into the sludge to settle down and secondary supernatant after processing；Wherein, the sludge to settle down is collected in machinery acceleration
In the bucket of clarifier 4, sludge-tank is periodically discharged into, the sludge in pond enters plate and frame filter press 16 by sludge pump 12, by press filtration
After obtain press filtration sludge and transported outward, while obtained press filtration waste liquid return neutralize case 2 (preferably, the press filtration waste liquid with one-level
Clear liquid is entered by same water inlet to be neutralized in case 2), continue to handle in desulfurization wastewater energy-efficient treatment system.
For desulfurization wastewater is directly entered reaction flocculation apparatus, the sludge quantity into the system reduces 80%.
The secondary supernatant flows out from the output end of mechanical accelerating purifying device 4, flows to next equipment.Accelerated by machinery clear
Clear device 4, acid ion, halogen family ion, light and heavy metals ion and the fluorine ion separated in waste water are removed.
PH adjusts back case 5, and its input is connected with the output end of mechanical accelerating purifying device 4, its output end and Strong oxdiative case 6
Input connects；After the secondary supernatant flows into PH readjustment casees, pH value conditioning agent is added thereto and carries out PH readjustment processing, is obtained
Adjust back pH value after liquid, so as to for carried out in Strong oxdiative case 6 Strong oxdiative reaction provides acid condition and guarantee after
The pH range of clear water in clear water reserviors 8.Preferably, PH, which is adjusted back, is designed with agitating device in case 5 and Strong oxdiative case 6 and (is marked in Fig. 1
For M), for being well mixed liquid and increasing oxidation reaction speed.
Strong oxdiative case 6, its input are connected with the output end of PH readjustment equipment 5, its output end and multi-medium filtering equipment
Input connection；After liquid after the readjustment pH value flows into Strong oxdiative case 6, strong oxidizer is added thereto, carries out Strong oxdiative
Reaction, obtains the liquid after Strong oxdiative.In Strong oxdiative case 6, the COD value in waste water further reduces.
Multi-medium filtering equipment, filter layer, the preferably top of slave unit to bottom are internally provided with, three mistakes being provided with
Filtering layer is respectively active carbon layer, quartz sand layer, cobblestone layer, and the ratio of its height is (1-5)： (5-10)：1, it is preferably activity
Layer of charcoal 400mm, quartz sand layer 700-800mm, cobblestone layer 100mm.
Exemplarily, above-mentioned active carbon layer, quartz sand layer, cobblestone layer height ratio can be in 1： 10：1、
5：5：1、1：5：1、5：10：1、3：8：1、2：9：Arbitrary value in 1.
The input of the multi-medium filtering equipment is connected with the output end of Strong oxdiative case 6, and output end connects with clear water collecting pit 8
Connect；Preferably, the multi-medium filtering equipment is the more medium filter A 71 and more medium filter B 71 being arranged in parallel, and this two
Individual more medium filter the using and the reserved, i.e.,：When one of which carries out backwashing standby, another is in use.
Clear water reserviors 8, its water inlet and the output end of multi-medium filtering equipment (are preferably more medium filter B71 water outlet
Mouthful) connection, by being arranged outside clarified water pump 14, below standard clear water returns clear water up to standard therein by the way that clear liquid pump is (not shown) again
Wastewater collection pond 1, the next round into the energy-efficient treatment system are handled.
Above-mentioned desulfurization wastewater energy-efficient treatment system is durable in use, and the number repaired every year after coming into operation is few.
Inventive desulfurization waste water energy-saving processing method, it is preferred to use desulfurization wastewater treatment system shown in Fig. 1 is completed, including
Following steps：
Step 1: precipitation：Desulfurization wastewater is subjected to precipitation process in wastewater collection pond 1, one-level supernatant is obtained and sinks
Starch；Wherein, the otherwise processed of gypsum cyclone 15 of the sediment (predominantly sludge) input wet desulfurization system, in the one-level
Clear liquid enters subsequent treatment.
In this step, sediment inputs the gypsum cyclone of wet desulfurization system, in wastewater treatment process at the very start
Partial sludge is stripped of from desulfurization wastewater, the solid content in subsequent treatment waste water can be reduced, to improve treatment effeciency, and is subtracted
Chemical feeding quantity in few subsequent step, the clearance of the sludge of this step is 80%.
Step 2: neutralize：Neutralize in case 2, PH conditioning agents Ca (OH) is added into the one-level supernatant2Solution, in progress
And reaction, it is 9-10 to obtain pH value, preferably 9 one-level supernatant；Above-mentioned Ca (OH)2The concentration of solution is 1wt%-5wt%
(such as the arbitrary value in 1%, 2%, 2.5%, 3%, 4%, 5% or any number range therebetween).
Preferably, the aerator 10 that the neutralization case 2 is set carries out Air Exposure to the content in case, makes the liquid in case
Fully contacted with air, related substances is fully oxidized, reduces COD value, and the chemical feeding quantity after reduction in step.
PH value herein is defined to 9.0, is to have considered the necessary condition for reaching generation heavy metal hydroxide and use up
Configuration determined after the aspect of yield two of amount reduction caustic, process equipment can realize more accurate behaviour
Make；For waste water after PH is adjusted, it is corresponding inorganic salts on the one hand to neutralize part acid ion, halogen family ion, on the other hand will
Partly light, heavy metal ion reaction is set to generate hydroxide so as to Precipitation；Alkalescent atmosphere after waste water neutralization, is advantageous to
It is complexed further directed to heavy metal ion and crystalline deposit, and the F ion in waste water is formed calcirm-fluoride with Ca ions,
Effectively fluorinion concentration in drop bottom water.Therefore, this step effectively neutralizes acid ion and halogen family ion, carries out from waste water
The preparation of separation；Effectively light, heavy metal ion and fluorine ion are separated from waste water, or carry out the preparation of separation.
Step 3: flocculation reaction：In reaction chamber 31, organic sulfur, case are added into the one-level supernatant that the pH value is 9.0
In liquid flow into flocculation tanks 32 again, then add flocculant in liquid thereto, liquid stops 0.1- in flocculation tanks again
1.0h (such as the arbitrary value in 0.1h, 0.25h, 0.5h, 0.75h, 1h or any number range therebetween), it is preferably
0.3-0.6h；,
Liquid in case flows into again helps solidifying case 33, then adds flocculation aid in liquid thereto, and liquid is again in solidifying case is helped
0.1-1.0h (such as the arbitrary value in 0.1h, 0.25h, 0.5h, 0.75h, 1h or any number range therebetween) is stopped,
Preferably 0.3-0.6h, finally obtain suspension.
In the content of reaction chamber 31, the concentration of organic sulfur for 1wt%-15wt% (such as 1wt%, 2.5wt %,
Arbitrary value or any numerical value model therebetween in 5wt%, 7.5wt%, 8wt%, 10wt%, 12.5wt%, 15wt%
Enclose)；In the content of flocculation tanks 32, the concentration of flocculant for 0.02wt%-0.1wt% (such as 0.02wt%,
Arbitrary value or any numerical value model therebetween in 0.025wt%, 0.05wt%, 0.075wt%, 0.08wt%, 0.1wt%
Enclose)；Help in the content of solidifying case 33, the concentration of flocculant for 0.02wt%-0.1wt% (such as 0.02wt%,
Arbitrary value or any numerical value therebetween in 0.025wt%, 0.05wt%, 0.075wt%, 0.08wt%, 0.1wt%
Scope)；The concentration of the flocculation aid can not be excessive, and otherwise its viscosity can also increase, and is unfavorable for flowing dosing.
Above-mentioned organic sulfur is heavy metal chelating agent, can select organic sulfur heavy metal chelant DTCR (dithiocarbamates first
Hydrochlorate), this area such as TMT15 often have organic sulfur reagent；Above-mentioned flocculant is flocculant commonly used in the art, preferred polymeric aluminium chloride
(PAC)；Above-mentioned flocculation aid is flocculation aid commonly used in the art, preferably polyacrylamide (PAM).
The heavy metal ion that above-mentioned organic sulfur can be gone in water removal；Above-mentioned flocculant and flocculation aid are used cooperatively, and can be made
Crystallizing the tiny alumen ustum accumulation of the inorganic salts separated out, heavy metal complex and suspension (SS) turns into larger particles, in order to mixed
Suspension settles faster after entering the mechanical accelerating purifying device of next step, most suspended substances in removal, and further removes
Heavy metal.Therefore, this step the inorganic salts that acid ion, halogen family ion are formed are separated with waste water；Will light, heavy metal ion
Further separated with fluorine ion from waste water.
Step 4: accelerate clarification：The suspension is subjected to Accelerated subsidence processing in mechanical accelerating purifying device 4, obtained
Secondary supernatant and the sludge to settle down；Wherein, the sludge to settle down is discharged into sludge-tank, and passes through plate and frame filter press pressure
After filter, press filtration sludge and press filtration waste liquid are obtained, the press filtration sludge is transported outward, and the press filtration waste liquid, which returns to neutralization case 2, to be continued in this hair
Handled in bright system, flocculation reaction step, acceleration clarification steps, PH readjustments step after carrying out, Strong oxdiative step, filtering
Step；
The secondary supernatant enters subsequent treatment.Therefore, this step will be separated from waste water by physics Accelerated subsidence
Acid ion, halogen family ion, light and heavy metals ion and fluorine ion removed from waste water.
Step 5: PH is adjusted back：In case 5 is adjusted back, PH conditioning agents are added into the secondary supernatant by PH On-line Controls
(preferably HCl solution) carries out PH readjustment processing, obtains the supernatant that pH value is 7.5-8.0.
Because the optimum condition that Strong oxdiative reacts in next step is acid condition, the secondary supernatant must be adjusted back
PH value；Moreover, the pH value for the clear water that filtration step obtains is also required between 6~9 after passing through, so two level must be adjusted back
The pH value of supernatant.
Step 6: Strong oxdiative：In Strong oxdiative case 6, into the supernatant that pH value is 7.5-8.0, addition strong oxidizer is (excellent
Select NaClO solution) Strong oxdiative reaction is carried out, obtain the supernatant after Strong oxdiative.Therefore, this step enters one by strong oxidation
Step reduces the COD value of supernatant.
In the content of Strong oxdiative case 6, NaClO concentration for 15wt%-31wt% (such as 15wt%, 17.5 wt%,
Arbitrary value or any number range therebetween in 20wt%, 22.5wt%, 25wt%, 30wt%), NaClO concentration
The COD of liquid can with amplitude peak be reduced within the range.
Step 7: filtering：Supernatant after Strong oxdiative is entered by more medium filter A71, more medium filter B 72
Row filtration treatment, the suspension gone again in water removal, obtains suspension clear water up to standard, is stored into clear water reserviors 8.The clear water
Up to standard after testing (《Steel and iron industry pollution discharge standard》(GB 13456-2012)) after be emitted into appointed place；Such as detection
It is not up to standard, returned in wastewater collection pond 1 by clear liquid pump and handled again, be recycled to the waste water repeatedly, made into system
It is all processed up to standard；Enter the desulfurization wastewater of the system of the present invention when water quality is poor or fortuitous event, it is necessary to repeatedly
Circular treatment, remaining is single treatment.
Embodiment 1
The present embodiment uses Fig. 1 Waste Water Treatment；Method of wastewater treatment is specific as follows：
(1) precipitate：Desulfurization wastewater is subjected to precipitation process in wastewater collection pond 1, obtains one-level supernatant and sediment.
(2) neutralize：Neutralize in case 2, the Ca (OH) that concentration is 1wt%-5wt% is added into one-level supernatant2Solution,
Neutralization reaction is carried out, obtains the one-level supernatant that pH value is 9.0；.
(3) flocculation reaction：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case flows into wadding again
Adding PAC in solidifying case 32, then liquid thereto, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then thereto
Add PAM in liquid, after the liquid in case stops 0.5h, obtain suspension.
In the content of reaction chamber 31, DTCR concentration is 7.5wt%；In the content of flocculation tanks 32, PAC concentration
For 0.05wt%；Help in the content of solidifying case 33, PAM concentration is 0.03wt%.
(4) clarification is accelerated：Suspension is subjected to acceleration precipitation process in mechanical accelerating purifying device 4, obtains two level supernatant
Liquid and the sludge to settle down.
(5) PH is adjusted back：In case 5 is adjusted back, PH conditioning agents are added (preferably into secondary supernatant by PH On-line Controls
HCl solution), obtain the supernatant that pH value is 7.5-8.0.
(6) Strong oxdiative：In Strong oxdiative case 6, NaClO solution is added into the supernatant that pH value is 7.5-8.0, is obtained
Supernatant after Strong oxdiative.In the content of Strong oxdiative case 6, NaClO concentration is 20wt%.
(7) filter：Supernatant after Strong oxdiative was carried out by more medium filter A71, more medium filter B 72
Filter is handled, and the suspension gone again in water removal, is obtained suspension clear water up to standard, is stored into clear water reserviors 8.
(8) after GB 13456-2012 detections, the clear water is up to standard, and the water quality detection result of the clear water is as shown in table 1, it
The clear water is emitted into appointed place again afterwards.
Table 1：In embodiment 1-7, desulfurization wastewater before processing (the pending waste water in Sewage treatment pond 1 i.e. to be entered) is afterwards (i.e.
Clear water up to standard in step (8)) water quality
Embodiment 2
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 2wt%；In the content of flocculation tanks 32, PAC concentration is 0.05wt%；Help in the content of solidifying case 33, PAM's
Concentration is 0.08wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 20wt%.
The water quality detection result of clear water up to standard is as shown in table 1 in the present embodiment step (8).
Embodiment 3
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 15wt%；In the content of flocculation tanks 32, PAC concentration is 0.1wt%；Help in the content of solidifying case 33, PAM's
Concentration is 0.1wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 20wt%.
The water quality detection result of clear water up to standard is as shown in table 1 in the present embodiment step (8).
Embodiment 4
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 0.5wt%；In the content of flocculation tanks 32, PAC concentration is 0.08wt%；Help in the content of solidifying case 33, PAM
Concentration be 0.08wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 20wt%.
The water quality detection result of clear water up to standard is as shown in table 1 in the present embodiment step (8).
Embodiment 5
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 2wt%；In the content of flocculation tanks 32, PAC concentration is 0.05wt%；Help in the content of solidifying case 33, PAM's
Concentration is 0.08wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 10wt%.
The water quality detection result of clear water up to standard is as shown in table 1 in the present embodiment step (8).
Embodiment 6
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 2wt%；In the content of flocculation tanks 32, PAC concentration is 0.05wt%；Help in the content of solidifying case 33, PAM's
Concentration is 0.08wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 35wt%.
The water quality detection result of clear water up to standard is as shown in table 1 in the present embodiment step (8).
Embodiment 7
The present embodiment uses Fig. 1 Waste Water Treatment；The method of wastewater treatment of the present embodiment is referring to embodiment 1, this reality
It is as follows to apply difference of the concrete operations of example with implementing 1.
The flocculation reaction of step (3)：In reaction chamber 31, DTCR is added into the one-level supernatant, the liquid in case is again
Flowing into flocculation tanks 32, then liquid thereto and add PAC, the liquid in case first stops 0.5h, then flows into and help solidifying case 33, then
Add PAM in liquid thereto, after the liquid in case stops 0.5h, obtain suspension.In the content of reaction chamber 31, DTCR
Concentration be 7.5wt%；In the content of flocculation tanks 32, PAC concentration is 0.2wt%；Help in the content of solidifying case 33, PAM
Concentration be 0.2wt%.
The Strong oxdiative of step (6)：In the content of Strong oxdiative case 6, NaClO concentration is 35wt%.
Above example is merely to illustrate the present invention, and not limitation of the present invention, the common skill about technical field
Art personnel without departing from the spirit and scope of the present invention, can make a variety of changes and modification, therefore all equivalent
Technical scheme fall within scope of the invention, scope of patent protection of the invention should be defined by the claims.
Claims (10)
- A kind of 1. desulfurization wastewater energy-efficient treatment system, it is characterised in that：Set including wastewater collection pond, neutralizing device, reaction flocculation Standby, acceleration clarifying equipment, PH readjustments equipment, Strong oxdiative equipment, multi-medium filtering equipment, wherein：The wastewater collection pond, delivery port are connected with the neutralizing device, and mud mouth is connected with wet desulfurization system；For collecting Desulfurization wastewater, and desulfurization wastewater is subjected to precipitation process, to obtain one-level supernatant and sediment；The neutralizing device, input are connected with the delivery port of the wastewater collection pond, output end and the reaction flocculation apparatus Input connection；For carrying out PH regulation processing to the one-level supernatant, with the supernatant after adjusted pH value；The reaction flocculation apparatus, input are connected with the output end for neutralizing the equipment, and output end and the acceleration are clear The input connection of clear equipment；For carrying out flocculation reaction to the supernatant after the regulation pH value, to obtain suspension；The acceleration clarifying equipment, input are connected with the output end of the reaction flocculation apparatus, and output end is adjusted back with the PH The input connection of equipment；For carrying out Accelerated subsidence processing to the suspension, to obtain secondary supernatant and precipitate Sludge；The PH adjusts back equipment, and input is connected with the output end of the acceleration clarifying equipment, and output end is set with the Strong oxdiative Standby input connection；For carrying out PH readjustment processing to the secondary supernatant, to obtain the liquid after readjustment pH value；The Strong oxdiative equipment, input are connected with the output end of PH readjustment equipment, output end and the multi-medium filtering The input connection of equipment；For carrying out Strong oxdiative processing to the liquid after the readjustment pH value, to obtain the liquid after Strong oxdiative Body；The multi-medium filtering equipment, input are connected with the output end of the Strong oxdiative equipment, and output end is connected with clear water reserviors； For carrying out filtration treatment to the liquid after the Strong oxdiative, to obtain clear water.
- 2. desulfurization wastewater energy-efficient treatment system according to claim 1, it is characterised in that：The wastewater collection pond be additionally provided with into The mouth of a river, the water inlet are connected with the clear water reserviors, the clear water of the below standard part for collecting the clear water reserviors discharge.
- 3. desulfurization wastewater energy-efficient treatment system according to claim 1, it is characterised in that：Aeration is provided with the neutralizing device Device.
- 4. desulfurization wastewater energy-efficient treatment system according to claim 1, it is characterised in that：The reaction flocculation apparatus includes： The reaction chamber that is sequentially connected, flocculation tanks, help solidifying case；The reaction chamber is for the weight in the supernatant after catching the regulation pH value Metal ion, the flocculation tanks and it is described help solidifying case be used for assemble the suspended particulate in the reaction chamber water outlet in order to precipitate.
- 5. desulfurization wastewater energy-efficient treatment system according to claim 1, it is characterised in that：The acceleration clarifying equipment is provided with mud Bucket；The bucket is used to collect the sludge to settle down, and timing is discharged into sludge-tank.
- 6. desulfurization wastewater energy-efficient treatment system according to claim 5, it is characterised in that：The output end and plate of the sludge-tank The input connection of frame filter press；The plate and frame filter press is used to the sludge to settle down carrying out press filtration processing, obtains Press filtration sludge and press filtration waste liquid；The press filtration sludge outward transport, press filtration waste liquid delivery outlet and the neutralization of the plate and frame filter press Equipment is connected, and the press filtration waste liquid is back into the neutralizing device.
- 7. desulfurization wastewater energy-efficient treatment system according to claim 1, it is characterised in that：The multi-medium filtering equipment, bag Include more medium filter, preferably 2 more medium filters.
- A kind of 8. desulfurization wastewater energy-saving processing method, it is characterised in that：Comprise the following steps：Settling step：Desulfurization wastewater is subjected to precipitation process in wastewater collection pond, obtains one-level supernatant and sediment；Neutralization procedure：PH conditioning agents are added into the one-level supernatant, PH regulation processing is carried out, obtains akaline liquid；It is preferred that Ground, the PH of the akaline liquid is 9.0；Flocculation reaction step：Organic sulfur, flocculant and flocculation aid are added into the akaline liquid, carries out heavy metal ion seizure And flocculation reaction, obtain suspension；Accelerate clarification steps：The suspension is subjected to Accelerated subsidence processing, obtains secondary supernatant and the sludge to settle down；PH adjusts back step：PH conditioning agents are added into the secondary supernatant, carry out PH readjustment processing, it is 7.5-8 to obtain pH value Liquid；Strong oxdiative step：Strong oxidizer is added into the liquid that the pH value is 7.5-8, Strong oxdiative processing is carried out, obtains strong oxygen Liquid after change；Filtration step：Liquid after the Strong oxdiative is subjected to filtration treatment, obtains clear water.
- 9. desulfurization wastewater energy-saving processing method according to claim 8, it is characterised in that：It is described heavy in the settling step Starch carries out dewater treatment by the gypsum cyclone in wet desulphurization system.
- 10. desulfurization wastewater energy-saving processing method according to claim 8, it is characterised in that：In the neutralization procedure, the PH Conditioning agent is aqua calcis；Preferably, in the flocculation reaction step, the flocculant is aluminium polychloride, and the flocculation aid is acrylamide；Preferably, in the acceleration clarification steps, the sludge to settle down is discharged into sludge-tank, then carries out press filtration processing, obtains To press filtration sludge and press filtration waste liquid；The press filtration sludge is transported outward, and the press filtration waste liquid converges with the one-level supernatant, is carried out The PH regulations processing, then by the flocculation reaction step, acceleration clarification steps, PH readjustments step, Strong oxdiative step, filtering Step, obtain clear water；Preferably, in the PH readjustments step, the PH conditioning agents are hydrochloric acid solution；Preferably, in the Strong oxdiative step, the strong oxidizer is liquor natrii hypochloritis；Preferably, in the filtration step, part up to standard is directly discharged in the clear water, and below standard part returns described useless Continue circular treatment in water collecting pit.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108046483A (en) * | 2018-01-31 | 2018-05-18 | 大唐环境产业集团股份有限公司 | A kind of device and method based on persulfate processing desulfurization wastewater |
| CN108046465A (en) * | 2017-12-05 | 2018-05-18 | 陈建祥 | A kind of desulfurization process for treating industrial waste water |
| CN108585261A (en) * | 2018-03-05 | 2018-09-28 | 攀枝花市蓝鼎环保科技有限公司 | Processing system and its construction technology for high sulfur concentration off-gas recovery waste water |
| CN111039492A (en) * | 2020-02-20 | 2020-04-21 | 北京朗新明环保科技有限公司 | Low-cost zero-discharge desulfurization wastewater treatment system and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192675A (en) * | 1996-01-25 | 1997-07-29 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
| CN101838072A (en) * | 2010-05-31 | 2010-09-22 | 西安热工研究院有限公司 | Treatment system and treatment method for reducing amount of volatile heavy metal sludge in desulfurization wastewater |
| CN203474565U (en) * | 2013-09-23 | 2014-03-12 | 浙江东发环保工程有限公司 | Novel desulfurization wastewater treatment system |
| KR20140114200A (en) * | 2013-03-18 | 2014-09-26 | 그린엔텍 주식회사 | Treating methods of sulfuric acid lyes and apparatus |
| CN105000713A (en) * | 2015-07-21 | 2015-10-28 | 北京中航泰达环保科技股份有限公司 | Desulfurization wastewater treatment system and desulfurization wastewater treatment method |
| CN204824453U (en) * | 2015-07-24 | 2015-12-02 | 中电环保股份有限公司 | Desulfurization pretreatment of water device that gives up |
| CN105110510A (en) * | 2015-09-16 | 2015-12-02 | 山东电力工程咨询院有限公司 | Desulfurization waste water treatment system and treatment method capable of preventing sewage blocking |
| CN207158965U (en) * | 2017-08-10 | 2018-03-30 | 北京中航泰达环保科技股份有限公司 | A kind of desulfurization wastewater energy-efficient treatment system |
-
2017
- 2017-08-10 CN CN201710680563.3A patent/CN107352689A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192675A (en) * | 1996-01-25 | 1997-07-29 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
| CN101838072A (en) * | 2010-05-31 | 2010-09-22 | 西安热工研究院有限公司 | Treatment system and treatment method for reducing amount of volatile heavy metal sludge in desulfurization wastewater |
| KR20140114200A (en) * | 2013-03-18 | 2014-09-26 | 그린엔텍 주식회사 | Treating methods of sulfuric acid lyes and apparatus |
| CN203474565U (en) * | 2013-09-23 | 2014-03-12 | 浙江东发环保工程有限公司 | Novel desulfurization wastewater treatment system |
| CN105000713A (en) * | 2015-07-21 | 2015-10-28 | 北京中航泰达环保科技股份有限公司 | Desulfurization wastewater treatment system and desulfurization wastewater treatment method |
| CN204824453U (en) * | 2015-07-24 | 2015-12-02 | 中电环保股份有限公司 | Desulfurization pretreatment of water device that gives up |
| CN105110510A (en) * | 2015-09-16 | 2015-12-02 | 山东电力工程咨询院有限公司 | Desulfurization waste water treatment system and treatment method capable of preventing sewage blocking |
| CN207158965U (en) * | 2017-08-10 | 2018-03-30 | 北京中航泰达环保科技股份有限公司 | A kind of desulfurization wastewater energy-efficient treatment system |
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| CN107935879A (en) * | 2017-11-22 | 2018-04-20 | 宁夏启元药业有限公司 | A kind of processing method of abricycline crystal mother liquor |
| CN108046465A (en) * | 2017-12-05 | 2018-05-18 | 陈建祥 | A kind of desulfurization process for treating industrial waste water |
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| CN108046478A (en) * | 2018-01-15 | 2018-05-18 | 华电莱州发电有限公司 | A kind of power plant desulfurization wastewater treatment system and technique |
| CN108046483A (en) * | 2018-01-31 | 2018-05-18 | 大唐环境产业集团股份有限公司 | A kind of device and method based on persulfate processing desulfurization wastewater |
| CN108585261A (en) * | 2018-03-05 | 2018-09-28 | 攀枝花市蓝鼎环保科技有限公司 | Processing system and its construction technology for high sulfur concentration off-gas recovery waste water |
| CN111039492A (en) * | 2020-02-20 | 2020-04-21 | 北京朗新明环保科技有限公司 | Low-cost zero-discharge desulfurization wastewater treatment system and method |
| CN112939287A (en) * | 2021-03-25 | 2021-06-11 | 四川恩特普环保科技有限公司 | Sulfuric acid production wastewater treatment method |
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Application publication date: 20171117 |