CN109650650A - A kind of processing system and application of petrochemical industry sewage - Google Patents
A kind of processing system and application of petrochemical industry sewage Download PDFInfo
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- CN109650650A CN109650650A CN201811542484.7A CN201811542484A CN109650650A CN 109650650 A CN109650650 A CN 109650650A CN 201811542484 A CN201811542484 A CN 201811542484A CN 109650650 A CN109650650 A CN 109650650A
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- 239000010865 sewage Substances 0.000 title claims abstract description 128
- 238000012545 processing Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims description 53
- 238000005188 flotation Methods 0.000 claims description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 33
- 238000000926 separation method Methods 0.000 claims description 33
- 238000005273 aeration Methods 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 24
- 230000003197 catalytic effect Effects 0.000 claims description 21
- 238000012544 monitoring process Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 20
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 15
- 238000006385 ozonation reaction Methods 0.000 claims description 15
- 238000004062 sedimentation Methods 0.000 claims description 15
- 239000003814 drug Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 238000009298 carbon filtering Methods 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 230000035764 nutrition Effects 0.000 claims description 6
- 235000016709 nutrition Nutrition 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 description 22
- 231100000719 pollutant Toxicity 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 12
- 238000004065 wastewater treatment Methods 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 125000001477 organic nitrogen group Chemical group 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 238000004176 ammonification Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention relates to a kind of processing systems of petrochemical industry sewage, the system comprises be sequentially connected the pretreatment section for connecing setting, biochemical treatment section and advanced treating section, the pretreatment section can buffer petrochemical industry sewage water, regulating water quality, the biochemical treatment section can make the main water quality indicator of sewage reach discharge standard, the advanced treating section is capable of the water outlet of further advanced treating biochemical treatment section, ensure the complete qualified discharge of sewage tail water, plays the role of security personnel.This system is reliable for operation, operating cost is low, characteristics of compact layout, reduction is taken up an area and investment cost, the system are capable of handling petrochemical industry sewage, makes its qualified discharge.
Description
Technical field
The invention belongs to technical field of environment protection equipment, the especially a kind of processing system and application of petrochemical industry sewage.
Background technique
Currently, petrochemical industry sewage has the characteristics that water is big, water quality is unstable, complicated component, containing a large amount of in waste water
The substances such as greasy dirt, sulfide, volatile phenol, CODcr, BOD5, TDS are also higher, if not preprocessed, are directly entered sewage treatment
Factory will cause sewage treatment plant inflow water quality, water larger fluctuation occur, and high oil-containing, sulfur-containing waste water will be to biochemical treatment systems
System generates very detrimental effect, causes effluent from WWTP water quality not up to standard, causes great harm to surrounding enviroment.
By retrieval, patent publication us relevant to present patent application as follows is not yet found.
Summary of the invention
It is an object of the invention to provide a kind of processing system of petrochemical industry sewage in place of overcome the deficiencies in the prior art
And application, the system is reliable for operation, operating cost is low, characteristics of compact layout, reduction is taken up an area and investment cost, the system are capable of handling
Petrochemical industry sewage makes its qualified discharge.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A kind of processing system of petrochemical industry sewage, the system comprises be sequentially connected the pretreatment section for connecing setting, biochemistry
Processing section and advanced treating section, the pretreatment section can buffer petrochemical industry sewage water, regulating water quality, at the biochemistry
Reason section can make the main water quality indicator of sewage reach discharge standard, and the advanced treating section being capable of further advanced treating biochemistry
The water outlet of processing section, it is ensured that sewage tail water qualified discharge plays the role of security personnel.
Moreover, the pretreatment section includes that sewage adjusts tank, accident pool, efficient flotation separation device, floating agent system, it is described
Pretreatment section treated oil content of wastewater is no more than 20mg/L, and the biochemical treatment section includes anaerobic biological tank, bio-aeration
Pond, sedimentation basin, anoxic pond, the pond MBR, MBR produce pond, nutrition salt system, air blower, chemical cleaning pond, chemical cleaning medicament
System, the advanced treating section include catalytic ozonation tower, monitoring pool, discharge pond, ozone generator, active carbon filtering dress
It sets, sludge concentrating pot pond, mechanical sludge dewatering device；
The sewage adjusts tank, efficient flotation separation device, anaerobic biological tank, bio-aeration pool, sedimentation basin, anoxic pond, MBR
Pond, MBR production pond, catalytic ozonation tower, monitoring pool, discharge pond are sequentially connected and connect setting, the output end output in the discharge pond
Waste water up to standard；The monitoring pool can monitor whether its internal water quality reaches discharge standard, reach discharge standard, be then discharged
Input discharge pond is discharged input active carbon filtering device if not up to discharge standard；
It includes first input end, the second input terminal, the first output end and second output terminal, the thing that the sewage, which adjusts tank,
Gu Chi includes first input end, the second input terminal and output end, and the first input end that the sewage adjusts tank is connected with sewage
Setting, the second input terminal which adjusts tank are connected setting with the output end of accident pool, and the first of the sewage adjusting tank
Output end is connected setting with the input terminal of efficient flotation separation device, and the sewage adjusts the second output terminal and accident pool of tank
Second input terminal is connected setting, and the first input end of the accident pool is connected setting with accident water；The floating agent system
System is also connected with efficient flotation separation device setting, the floating agent system can to efficient flotation separation device input flotation medicament,
The output end of the efficient flotation separation device is also connected with sludge concentrating pot pond setting, dross, dirt in the efficient flotation separation device
Mud can be input in sludge concentrating pot pond；
The nutrition salt system is also connected with anaerobic biological tank setting, which can be defeated to anaerobic biological tank
Enter anaerobic biological substance；The output end of the air blower is connected setting with bio-aeration pool, the pond MBR；The chemical cleaning
The input terminal of pharmaceutical system can input chemical cleaning medicament, the output end of the chemical cleaning medicament system and chemical cleaning pond
Input terminal be connected setting, the output end in the chemical cleaning pond is connected setting with the pond MBR, which can be
The diaphragm being arranged in the pond MBR is contaminated when leading to excessive transmembrane pressure, transmitance reduction, is cleaned to film, is restored film
Transmitance；The output end of the sedimentation basin is also connected with bio-aeration pool, sludge concentrating pot pond setting, in the sedimentation basin
Partial sludge can be back in bio-aeration pool；The output end in the pond MBR also with anoxic pond, sludge concentrating pot pond phase
Connection setting, the pond the MBR inner part sludge can be back in anoxic pond；
The ozone generator is connected setting with catalytic ozonation tower, which can be to ozone catalytic oxygen
Change and ozone is provided in tower；The input terminal of the active carbon filtering device is connected setting with monitoring pool, the active carbon filtering device
Output end be connected setting with discharge pond；The input of the output end and mechanical sludge dewatering device in the sludge concentrating pot pond
The setting that is connected is held, the output end of the mechanical sludge dewatering device can export dehydrated sludge.
Moreover, the MBR film in the pond MBR uses anti-pollution PVDF film.
Moreover, the sewage, which is adjusted, is arranged electric heater in tank, the sewage adjusts in tank and also sets up submersible type blender,
The sewage adjusts and also sets up manhole on tank.
Moreover, the activated carbon adsorption filter device is activated carbon adsorption filter.
Moreover, the sludge concentrating pot pond is by the way of gravity concentration.
Moreover, the mechanical sludge dewatering device is Stacked sludge dewatering machine.
The processing system of petrochemical industry sewage as described above in terms of the petrochemical industry sewage treatment in application.
The advantages of present invention obtains and good effect are:
1, this system includes being sequentially connected the pretreatment section for connecing setting, biochemical treatment section and advanced treating section, pretreatment section
Have the function of sewage water buffering, water quality adjustment, reduces subsequent biochemical section processing load, surmounts adjusting；Biochemical treatment section is adopted
With two-stage A/O and MBR reactor, major function is to improve the biodegradability of sewage, removal COD, ammonia nitrogen, total nitrogen, total phosphorus etc.,
It removes sewage major pollutants obviously, main water quality indicator is made to reach " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard；Advanced treating section can be further processed MBR water outlet, it is ensured that sewage tail water is completely up to standard
Discharge.The system is capable of handling petrochemical industry sewage, makes its qualified discharge；
Meanwhile this system is stable, Technological Economy is advanced reasonable, safe and applicable, meets water environment demand for development；This is
System safety adaptable to change of water quality, reliable for operation；This system flexible operation, it is easily operated, convenient for management, it is ensured that
Items effluent index reaches the set quota when normal, combines the economy run under high load capacity and underload, adjustment side
Just；This system reduces three waste discharge, and outlet " three wastes " reaches the requirement of discharge standard；This system connection and reasonable arrangement, it is compact, because
Ground suiting measures to different conditions saves land occupation, saves land resource；This system is with low investment, convenient for management, operating cost is low.
2, the pretreatment section of this system includes that sewage adjusts tank, accident pool, efficient flotation separation device, floating agent system, dirty
Water is adjusted in tank in sewage and is kept in, the peak valley of regulating pondage, regulating water quality, it is ensured that the subsequent workshop section's water of device, water quality are steady.
When enterprise is because occurring accident blowdown, accident water is first emitted on accident pool, and part accident sewage can be through tank car roping, accident pool
Sewage is slowly emitted into sewage after emergency processing and adjusts tank；Pretreatment section is also provided with efficient flotation separation device, once sewage comes
Water oil-containing is exceeded, opens efficient flotation separation device, it is ensured that the oil content of wastewater into biochemical treatment section is no more than 20mg/L.
The air bearing water outlet of efficient flotation separation device enters biochemical treatment section, and biochemical treatment section uses anaerobic biological tank to hydrolyze first
Acidification, improves the biodegradability of petrifaction sewage, and then sewage enters bio-aeration pool, oxidation operation degradation, ammonia nitrogen and organic
Nitrogen is converted into NO3-N and NO2-N；Aeration tank water outlet flows into anoxic pond through sedimentation basin precipitation process, and aerobic section uses MBR
Water outlet.Wherein: in anoxic pond, denitrifying bacterium utilizes the BOD in sewage5As the carbon source of denitrogenation, by band in backflow mixed liquor
The a large amount of nitrate-nitrogen reductions entered are nitrogen, and reach denitrogenation purpose, while the BOD in anoxic section5Concentration decline, NO3- N concentration
Sharp fall, when carbon source deficiency, can add carbon source.Oxygen is provided using blast aeration in aerobic tank, utilizes aerobic bacteria
Metabolism continues the concentration for reducing organic matter；Organic nitrogen is then nitrified by ammonification, so that under ammonia nitrogen concentration is significant
Drop, but nitrifying process makes NO therewith3The concentration of-N increases, and flow to anoxic pond and continue denitrification denitrogenation, after biochemical treatment
Sewage mud-water separation is carried out by the ultrafiltration membrane of MBR system, therefore A/O section of two-stage are mainly that returned sludge and nitrification liquids exist
Under anoxic and aerobic alternation condition, the removal of the pollutants such as COD, BOD, ammonia nitrogen, TN is realized.
It is carried out through biochemical treatment section treated sewage sequentially enters catalytic ozonation tower, activated carbon adsorption filter device
Processing, water quality are further purified, and all kinds of pollutant concentration indexs are better than " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard.
Sewage touches disinfecting steps after catalytic ozonation is handled, without another adjunction.Ordinary circumstance ozone catalytic is discharged water
Matter has been better than " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A standard, can be directly discharged into monitoring
Pond, then overflow enter discharge pond.Once monitoring pool water quality occur is not up to " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) the case where level-one A standard, monitoring pool sewage is transported to activated carbon adsorption filter device and adsorbed
Discharge pond is discharged into after filter processing again, it can be ensured that its water quality reaches emission request.
3, the sewage of this system, which is adjusted, is arranged electric heater in tank, it is lower that winter sewage carrys out water temperature, adjust tank setting electricity plus
Hot device, so that improving reaction speed at 23 DEG C or so into next section of sewage water temperature；The sewage is adjusted to be also set up in tank
Submersible type blender ensure that sewage water water quality, the quenched better effect of water, and the sewage adjusts and also sets up manhole on tank,
Easy access, dredging.
4, by the way of gravity concentration, gravity concentration is low with operating cost, runs in the sludge concentrating pot pond of this system
Stablize, manage the advantages that simple.
5, the mechanical sludge dewatering device of this system is Stacked sludge dewatering machine.Folded spiral shell formula dewaterer has dehydrating effect
Advantage good, occupied area is small, operational administrative is simple, energy consumption, reagent consumption are low.
Detailed description of the invention
Fig. 1 is structure connection block diagram of the invention.
Specific embodiment
Below with reference to the invention will be further described by specific embodiment, following embodiment be it is descriptive, no
It is restrictive, this does not limit the scope of protection of the present invention.
The structure that the present invention is not described in detail specifically can be understood as the conventional structure of this field.
A kind of processing system of petrochemical industry sewage, as shown in Figure 1, the system comprises be sequentially connected the pre- place for connecing setting
Reason section, biochemical treatment section and advanced treating section, the pretreatment section can buffer petrochemical industry sewage water, regulating water quality, institute
Stating biochemical treatment section can make the main water quality indicator of sewage reach discharge standard, and the advanced treating section being capable of further depth
Handle the water outlet of biochemical treatment section, it is ensured that the complete qualified discharge of sewage tail water plays the role of security personnel.
This system includes being sequentially connected the pretreatment section for connecing setting, biochemical treatment section and advanced treating section, pretreatment section tool
There are sewage water buffering, water quality adjustment, reduces subsequent biochemical section processing load, surmounts adjusting；Biochemical treatment section uses
Two-stage A/O and MBR reactor, major function are to improve the biodegradability of sewage, and removal COD, ammonia nitrogen, total nitrogen, total phosphorus etc. make
Sewage major pollutants are obviously removed, and main water quality indicator is made to reach " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard；Advanced treating section can further advanced treating MBR be discharged, it is ensured that sewage tail water is complete
Qualified discharge plays the role of security personnel, which is capable of handling petrochemical industry sewage, makes its qualified discharge；
Meanwhile this system is stable, Technological Economy is advanced reasonable, safe and applicable, meets water environment demand for development；This is
System safety adaptable to change of water quality, reliable for operation；This system flexible operation, it is easily operated, convenient for management, it is ensured that
Items effluent index reaches the set quota when normal, combines the economy run under high load capacity and underload, adjustment side
Just；This system reduces three waste discharge, and outlet " three wastes " reaches the requirement of discharge standard；This system connection and reasonable arrangement, it is compact, because
Ground suiting measures to different conditions saves land occupation, saves land resource；This system is with low investment, convenient for management, operating cost is low.
In the present embodiment, the pretreatment section includes that sewage adjusts tank, accident pool, efficient flotation separation device, floating agent
System, the pretreatment section treated oil content of wastewater are no more than 20mg/L, and the biochemical treatment section includes anaerobic biological
Tank, bio-aeration pool, sedimentation basin, anoxic pond, the pond MBR, MBR produce pond, nutrition salt system, air blower, chemical cleaning pond, change
Cleaning agent system is learned, the advanced treating section includes catalytic ozonation tower, monitoring pool, discharge pond, ozone generator, work
Property charcoal filter device, sludge concentrating pot pond, mechanical sludge dewatering device；
The sewage adjusts tank, efficient flotation separation device, anaerobic biological tank, bio-aeration pool, sedimentation basin, anoxic pond, MBR
Pond, MBR production pond, catalytic ozonation tower, monitoring pool, discharge pond are sequentially connected and connect setting, the output end output in the discharge pond
Waste water up to standard；The monitoring pool can monitor whether its internal water quality reaches discharge standard, reach discharge standard, be then discharged
Input discharge pond is discharged input active carbon filtering device if not up to discharge standard；
The sewage adjust tank include first input end, the second input terminal, the first output end and second output terminal (in figure not
Show), the accident pool includes first input end, the second input terminal and output end, and the sewage adjusts the first input end of tank
Be connected setting with sewage, and the second input terminal which adjusts tank is connected setting with the output end of accident pool, the sewage
The first output end for adjusting tank is connected setting with the input terminal of efficient flotation separation device, and the second of the sewage adjusting tank exports
End is connected setting with the second input terminal of accident pool, and the first input end of the accident pool is connected setting with accident water；Institute
It states floating agent system to be also connected with efficient flotation separation device setting, which can be defeated to efficient flotation separation device
Enter flotation medicament, the output end of the efficient flotation separation device is also connected with sludge concentrating pot pond setting, efficient flotation separation dress
Dross, sludge in setting can be input in sludge concentrating pot pond；
The nutrition salt system is also connected with anaerobic biological tank setting, which can be defeated to anaerobic biological tank
Enter anaerobic biological substance；The output end of the air blower is connected setting with bio-aeration pool, the pond MBR；The chemical cleaning
The input terminal of pharmaceutical system can input chemical cleaning medicament, the output end of the chemical cleaning medicament system and chemical cleaning pond
Input terminal be connected setting, the output end in the chemical cleaning pond is connected setting with the pond MBR, which can be
The diaphragm being arranged in the pond MBR is contaminated when leading to excessive transmembrane pressure, transmitance reduction, is cleaned to film, is restored film
Transmitance；The output end of the sedimentation basin is also connected with bio-aeration pool, sludge concentrating pot pond setting, in the sedimentation basin
Partial sludge can be back in bio-aeration pool；The output end in the pond MBR also with anoxic pond, sludge concentrating pot pond phase
Connection setting, the pond the MBR inner part sludge can be back in anoxic pond；
The ozone generator is connected setting with catalytic ozonation tower, which can be to ozone catalytic oxygen
Change and ozone is provided in tower；The input terminal of the active carbon filtering device is connected setting with monitoring pool, the active carbon filtering device
Output end be connected setting with discharge pond；The input of the output end and mechanical sludge dewatering device in the sludge concentrating pot pond
The setting that is connected is held, the output end of the mechanical sludge dewatering device can export dehydrated sludge, and dehydrated sludge can be subsequent
It is further processed.
The pretreatment section of this system includes that sewage adjusts tank, accident pool, efficient flotation separation device, floating agent system, sewage
It adjusts in tank and keeps in sewage, the peak valley of regulating pondage, regulating water quality, it is ensured that the subsequent workshop section's water of device, water quality are steady.When
When enterprise is because occurring accident blowdown, accident water is first emitted on accident pool, and part accident sewage can be through tank car roping, and accident pool is dirty
Water is slowly emitted into sewage after emergency processing and adjusts tank；Pretreatment section is also provided with efficient flotation separation device, once sewage water
Oil-containing is exceeded, opens efficient flotation separation device, it is ensured that the oil content of wastewater into biochemical treatment section is no more than 20mg/L.
The air bearing water outlet of efficient flotation separation device enters biochemical treatment section, and biochemical treatment section uses anaerobic biological tank to hydrolyze first
Acidification, improves the biodegradability of petrifaction sewage, and then sewage enters bio-aeration pool, oxidation operation degradation, ammonia nitrogen and
Organic nitrogen is converted into NO3-N and NO2-N；Aeration tank water outlet flows into anoxic pond through sedimentation basin precipitation process, and aerobic section uses
MBR water outlet.Wherein: in anoxic pond, denitrifying bacterium utilizes the BOD in sewage5As the carbon source of denitrogenation, by backflow mixed liquor
In a large amount of nitrate-nitrogen reductions for bringing into be nitrogen, and reach denitrogenation purpose, while the BOD in anoxic section5Concentration decline, NO3-N
Concentration sharp fall, when carbon source deficiency, can add carbon source.Oxygen is provided using blast aeration in aerobic tank, utilization is aerobic
The metabolism of bacterium continues the concentration for reducing organic matter；Organic nitrogen is then nitrified by ammonification, so that ammonia nitrogen concentration is aobvious
Decline is write, but nitrifying process makes NO therewith3The concentration of-N increases, and flow to anoxic pond and continue denitrification denitrogenation, at biochemistry
Sewage after reason carries out mud-water separation by the ultrafiltration membrane of MBR system, therefore A/O sections of two-stage are mainly returned sludge and nitrification
Liquid realizes the removal of the pollutants such as COD, BOD, ammonia nitrogen, TN under anoxic and aerobic alternation condition.
It is carried out through biochemical treatment section treated sewage sequentially enters catalytic ozonation tower, activated carbon adsorption filter device
Processing, water quality are further purified, and all kinds of pollutant concentration indexs are better than " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard.
Sewage touches disinfecting steps after catalytic ozonation is handled, without another adjunction.Ordinary circumstance ozone catalytic is discharged water
Matter has been better than " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A standard, can be directly discharged into monitoring
Pond, then overflow enter discharge pond.Once monitoring pool water quality occur is not up to " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) the case where level-one A standard, monitoring pool sewage is transported to activated carbon adsorption filter device and adsorbed
Discharge pond is discharged into after filter processing again, it can be ensured that its water quality reaches emission request.
In the present embodiment, the MBR film in the pond MBR uses anti-pollution PVDF film.
In the present embodiment, the sewage, which is adjusted, is arranged electric heater in tank, it is lower that winter sewage carrys out water temperature, adjusts tank and sets
Electric heater is set, so that improving reaction speed at 23 DEG C or so into next section of sewage water temperature；The sewage is adjusted in tank
Submersible type blender is also set up, ensure that sewage water water quality, the quenched better effect of water, the sewage is adjusted also to be set on tank
Set manhole, easy access, dredging.
In the present embodiment, the activated carbon adsorption filter device is activated carbon adsorption filter.
In the present embodiment, by the way of gravity concentration, gravity concentration has operating cost in the sludge concentrating pot pond
It is low, stable, management it is simple the advantages that.
In the present embodiment, the mechanical sludge dewatering device is Stacked sludge dewatering machine.Folded spiral shell formula dewaterer has
The advantage that dehydrating effect is good, occupied area is small, operational administrative is simple, energy consumption, reagent consumption are low.
The coherent detection of the processing system of this petrochemical industry sewage:
1, effluent quality
According to the requirement of environmental protection administration, this system effluent quality reaches " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard, as shown in table 1.
The effluent quality (level-one A) for the petrochemical industry sewage that table 1 is handled using this system
| Serial number | Project name | Unit | Standard value |
| 1 | CODcr | mg/L | ≤50 |
| 2 | BOD5 | mg/L | ≤10 |
| 3 | SS | mg/L | ≤10 |
| 4 | Petroleum-type | mg/L | ≤1 |
| 5 | Anionic surfactant | mg/L | ≤0.5 |
| 6 | Total nitrogen | mg/L | ≤15 |
| 7 | Ammonia nitrogen | mg/L | ≤5(8) |
| 8 | Total phosphorus | mg/L | ≤0.5 |
| 9 | pH | 6~9 | |
| 10 | Coloration | Times | 30 |
| 11 | Excrement colibacillus group number | A/L | 103 |
Note: index is not use up in this table, also complies with relevant national standard specification.
2, the treatment effect of each section of major pollutants of the petrochemical industry sewage handled using this system, as shown in table 2.
The treatment effect of each section of major pollutants of the petrochemical industry sewage that table 2 is handled using this system
。
A kind of working principle of the processing system of this petrochemical industry sewage are as follows:
Sewage is collected and is promoted in sewage adjusting tank by gathering line and kept in, the peak valley of regulating pondage, regulating water quality, really
The subsequent workshop section's water of protection device, water quality are steady.When enterprise is because occurring accident blowdown, accident water is first emitted on accident pool, part
Accident sewage can be through tank car roping, and accident pool sewage is slowly emitted into sewage after emergency processing and adjusts tank；Pretreatment section is also set
Efficient flotation separation device has been set, once sewage water oil-containing is exceeded, has opened efficient flotation separation device, it is ensured that into biochemical treatment section
Oil content of wastewater is no more than 20mg/L.
The air bearing water outlet of efficient flotation separation device enters biochemical treatment section, and biochemical treatment section uses anaerobic biological tank to hydrolyze first
Acidification, improves the biodegradability of petrifaction sewage, and then sewage enters bio-aeration pool, oxidation operation degradation, ammonia nitrogen and
Organic nitrogen is converted into NO3-N and NO2-N；Aeration tank water outlet flows into anoxic pond through sedimentation basin precipitation process, and aerobic section uses
MBR water outlet.Wherein: in anoxic pond, denitrifying bacterium utilizes the BOD in sewage5As the carbon source of denitrogenation, by backflow mixed liquor
In a large amount of nitrate-nitrogen reductions for bringing into be nitrogen, and reach denitrogenation purpose, while the BOD in anoxic section5Concentration decline, NO3-N
Concentration sharp fall, when carbon source deficiency, can add carbon source.Oxygen is provided using blast aeration in aerobic tank, utilization is aerobic
The metabolism of bacterium continues the concentration for reducing organic matter；Organic nitrogen is then nitrified by ammonification, so that ammonia nitrogen concentration is aobvious
Decline is write, but nitrifying process makes NO therewith3The concentration of-N increases, and flow to anoxic pond and continue denitrification denitrogenation, at biochemistry
Sewage after reason carries out mud-water separation by the ultrafiltration membrane of MBR system, therefore A/O sections of two-stage are mainly returned sludge and nitrification
Liquid realizes the removal of the pollutants such as COD, BOD, ammonia nitrogen, TN under anoxic and aerobic alternation condition.
It is carried out through biochemical treatment section treated sewage sequentially enters catalytic ozonation tower, activated carbon adsorption filter device
Processing, water quality are further purified, and all kinds of pollutant concentration indexs are better than " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard.
Sewage touches disinfecting steps after catalytic ozonation is handled, without another adjunction.Ordinary circumstance ozone catalytic is discharged water
Matter has been better than " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A standard, can be directly discharged into monitoring
Pond, then overflow enter discharge pond.Once monitoring pool water quality occur is not up to " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) the case where level-one A standard, monitoring pool sewage is transported to activated carbon adsorption filter device and adsorbed
Discharge pond is discharged into after filter processing again, it can be ensured that its water quality reaches emission request.
Although disclosing the embodiment of the present invention for the purpose of illustration, it will be appreciated by those skilled in the art that: not
Be detached from the present invention and spirit and scope of the appended claims in, various substitutions, changes and modifications be all it is possible, therefore, this
The range of invention is not limited to the embodiment disclosure of that.
Claims (8)
1. a kind of processing system of petrochemical industry sewage, it is characterised in that: the system comprises be sequentially connected the pre- place for connecing setting
Reason section, biochemical treatment section and advanced treating section, the pretreatment section can buffer petrochemical industry sewage water, regulating water quality, institute
Stating biochemical treatment section can make the main water quality indicator of sewage reach discharge standard, and the advanced treating section being capable of further depth
Manage the water outlet of biochemical treatment section, it is ensured that sewage tail water qualified discharge plays the role of security personnel.
2. the processing system of petrochemical industry sewage according to claim 1, it is characterised in that: the pretreatment section includes dirt
Water adjusts tank, accident pool, efficient flotation separation device, floating agent system, and treated that oil content of wastewater does not surpass for the pretreatment section
20mg/L is crossed, the biochemical treatment section includes anaerobic biological tank, bio-aeration pool, sedimentation basin, anoxic pond, the pond MBR, MBR production water
Pond, nutrition salt system, air blower, chemical cleaning pond, chemical cleaning medicament system, the advanced treating section include ozone catalytic oxygen
Change tower, monitoring pool, discharge pond, ozone generator, active carbon filtering device, sludge concentrating pot pond, mechanical sludge dewatering device；
The sewage adjusts tank, efficient flotation separation device, anaerobic biological tank, bio-aeration pool, sedimentation basin, anoxic pond, the pond MBR, MBR
Production pond, catalytic ozonation tower, monitoring pool, discharge pond are sequentially connected and connect setting, and the output end output in the discharge pond is up to standard useless
Water；The monitoring pool can monitor whether its internal water quality reaches discharge standard, reach discharge standard, then be discharged input discharge
Pond is discharged input active carbon filtering device if not up to discharge standard；
It includes first input end, the second input terminal, the first output end and second output terminal, the accident pool that the sewage, which adjusts tank,
Including first input end, the second input terminal and output end, the first input end that the sewage adjusts tank is connected setting with sewage,
The second input terminal that the sewage adjusts tank is connected setting with the output end of accident pool, the first output end of the sewage adjusting tank
Be connected setting with the input terminal of efficient flotation separation device, and the sewage adjusts the second output terminal of tank and the second input of accident pool
End is connected setting, and the first input end of the accident pool is connected setting with accident water；The floating agent system also with height
Effect flotation unit is connected setting, which can input flotation medicament to efficient flotation separation device, described efficient
The output end of flotation unit is also connected with sludge concentrating pot pond setting, and dross, sludge in the efficient flotation separation device can be defeated
Enter to sludge concentrating pot pond；
The nutrition salt system is also connected with anaerobic biological tank setting, which can input to anaerobic biological tank detest
Oxygen biochemistry substance；The output end of the air blower is connected setting with bio-aeration pool, the pond MBR；The chemical cleaning medicament
The input terminal of system can input chemical cleaning medicament, the output end of the chemical cleaning medicament system and the input in chemical cleaning pond
End is connected setting, and the output end in the chemical cleaning pond is connected setting with the pond MBR, which can exist being arranged
Diaphragm in the pond MBR is contaminated when leading to excessive transmembrane pressure, transmitance reduction, is cleaned to film, is restored the transmission of film
Rate；The output end of the sedimentation basin is also connected with bio-aeration pool, sludge concentrating pot pond setting, and the part in the sedimentation basin is dirty
Mud can be back in bio-aeration pool；The output end in the pond MBR is also connected with anoxic pond, sludge concentrating pot pond setting,
The pond the MBR inner part sludge can be back in anoxic pond；
The ozone generator is connected setting with catalytic ozonation tower, which can be to catalytic ozonation tower
Interior offer ozone；The input terminal of the active carbon filtering device is connected setting with monitoring pool, the active carbon filtering device it is defeated
Outlet is connected setting with discharge pond；The output end in the sludge concentrating pot pond is connected with the input terminal of mechanical sludge dewatering device
Setting is connect, the output end of the mechanical sludge dewatering device can export dehydrated sludge.
3. the processing system of petrochemical industry sewage according to claim 2, it is characterised in that: the MBR film in the pond MBR is adopted
With anti-pollution PVDF film.
4. the processing system of petrochemical industry sewage according to claim 2, it is characterised in that: the sewage is adjusted to be set in tank
Electric heater is set, the sewage adjusts and also sets up submersible type blender in tank, and the sewage adjusts and also sets up manhole on tank.
5. the processing system of petrochemical industry sewage according to claim 2, it is characterised in that: the activated carbon adsorption filtering
Device is activated carbon adsorption filter.
6. the processing system of petrochemical industry sewage according to claim 2, it is characterised in that: adopt in the sludge concentrating pot pond
With the mode of gravity concentration.
7. according to the processing system of the described in any item petrochemical industry sewage of claim 2 to 6, it is characterised in that: the sludge
Mechanical dehydration device is Stacked sludge dewatering machine.
8. the processing system of petrochemical industry sewage as described in any one of claim 1 to 7 is in terms of petrochemical industry sewage treatment
In application.
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