CN204939139U - A kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device - Google Patents
A kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device Download PDFInfo
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- CN204939139U CN204939139U CN201520699417.1U CN201520699417U CN204939139U CN 204939139 U CN204939139 U CN 204939139U CN 201520699417 U CN201520699417 U CN 201520699417U CN 204939139 U CN204939139 U CN 204939139U
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Abstract
The utility model discloses a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device, its composition comprises: former water tank, submersible pump, line mixer, Powdered Activated Carbon slurry tank, Powdered Activated Carbon adds pump, flocculation agent dosing tank, flocculation agent dosing pump, coagulation basin, agitator one, coagulation basin gas distribution equipment, dense medium automatic adding device, gas blower, dense medium mixed reaction pond, coagulant aids dosing tank, coagulant aids dosing pump, agitator two, mix device three, aerobic fermentation tank, swash plate, water distributing pipe, rapid sedimentation tank, rapid sedimentation tank air purge equipment, sludge pump, mud recovery tube, mud return line, cyclone separator and sludge sump, submersible pump is provided with in described former water tank, submersible pump is connected with coagulation basin by pipeline, swash plate is provided with in described rapid sedimentation tank, water distributing pipe and rapid sedimentation tank air purge equipment, described cyclone separator is connected with sludge sump.The stability that it has water treatment efficiency is stronger, continous-stable Effec-tive Function, the features such as economy is good.
Description
Technical field
The utility model relates to water-treatment technology field, particularly relates to a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device.
Background technology
In recent years, along with the continuous expansion of China's city size, the level of urbanization improve constantly the continuous aggravation of polluting with water resource environment, cities and towns water treatment and sewage disposal are all faced with guarantor's amount and the double challenge of guaranteeing the quality, the consequent be the continuous enlarging of municipal water treatment facility and technique propose mark transformation.China increasingly valuable for cultivated land resource, the exploitation of Novel compact, High-efficient Water treatment process, equipment is obviously extremely urgent.
Coagulating sedimentation is requisite process procedure in water treatment procedure, but traditional coagulation-settlement process residence time is longer, upward flow flow velocity as horizontal sedimentation tank is 0.5-1.5m/h, the upward flow flow velocity of inclined-plate clarifying basin is also only at 10-15m/h more fast, and this makes this process section in the construction of waterworks, sewage work, occupy the land used of significant proportion.Meanwhile, there is the phenomenon of swash plate deposition, cleaning difficulty in most of inclined-plate clarifying basin, also have influence on applying of inclined-plate clarifying basin to a certain extent in operational process.
In addition, along with town sewage emission standard rises to one-level A standard by one-level B standard, in existing water factory technique, the index exceeding standard phenomenon such as ammonia nitrogen, total phosphorus, heavy metal happens occasionally.Therefore no matter be that old Sewage Plant proposes mark transformation, or the advanced treatment of new sewage work, all need energy-conservation, efficient, stable water treatment product innovation, new technology.
Therefore, need to provide a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device to solve the problems referred to above.
Utility model content
In order to solve this problem, the utility model discloses a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device, it adopts density to be greater than 2.5g/cm
3dense medium powder as the nucleus of condensation of flco in flocculation process, can greatly promote completing of precipitation process, accelerate flocculation and precipitation process, make upward flow flow velocity reach as high as more than 40m/h.For Heavy Metals in Waters, ammonia nitrogen, total phosphorus ligands difficult problem, this device is provided with Powdered Activated Carbon dosing system, and the urgent pollution situation of Adsorption of Heavy Metals and reply water source in Water purification, in sewage disposal, utilize its absorption, bioconcentration, removal heavy metal, ammonia nitrogen, total phosphorus.Under the equal water yield, the land used of this technique is only 1/30 of horizontal sedimentation tank, 1/3 of inclined-plate clarifying basin.When huge to the process water yield, the effect that resource intensivism utilizes is fairly obvious.A kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device, primarily of former water tank, submersible pump, line mixer, Powdered Activated Carbon slurry tank, Powdered Activated Carbon adds pump, flocculation agent dosing tank, flocculation agent dosing pump, coagulation basin, agitator one, coagulation basin gas distribution equipment, dense medium automatic adding device, gas blower, dense medium mixed reaction pond, coagulant aids dosing tank, coagulant aids dosing pump, agitator two, mix device three, aerobic fermentation tank, swash plate, water distributing pipe, rapid sedimentation tank, rapid sedimentation tank air purge equipment, sludge pump, mud recovery tube, mud return line, the composition such as cyclone separator and sludge sump, described former water tank is connected with flocculation reactor by submersible pump pipeline, described flocculation reactor is made up of coagulation basin, dense medium mixed reaction pond, aerobic fermentation tank, three ponds are communicated with successively, and above every pond, agitator is housed, flocculation agent, coagulant aids are added to flocculation reactor by Automatic Dosing pipeline, flocculation reactor is connected with rapid sedimentation tank, flocculation reactor is connected with cyclone separator by recovery channel with the excess sludge bottom rapid sedimentation tank, dense medium powder after recovery is got back in flocculation reactor by pipeline, thus forms recycle, be provided with coagulation basin gas distribution equipment bottom described coagulation basin, carry out aeration, stirring to the former water in coagulation basin, aeration bubbles has support effect to the dense medium in returned sluge simultaneously, stops the deposition of dense medium powder in coagulation basin, described Powdered Activated Carbon add pump the gac in Powdered Activated Carbon slurry tank is pumped into mix with former water in line mixer after enter the coagulation basin of flocculation reactor, described rapid sedimentation tank partial reflux mud gets back to coagulation basin by sludge return pipe, completes the backflow of carbon mud, rapid sedimentation tank air purge equipment is established, easily for carrying out air purge to swash plate in described rapid sedimentation tank.
Preferably: advantage of the present utility model is: 1, Economization on land usable floor area (about conventional equipment technique 40%, even more economize) and civil engineering cost, miniaturization makes the construction/production of the modularization of processing unit become possibility, thus shortens the construction period.2, the stability of water treatment efficiency is stronger, and in tap water, in the face of seasonal change of water quality, as algae and turbidity change, the initial clearance of this technique to algae and turbidity can reach 90-99%; In the face of burst mode tra nsmitter, as the leakage of Song Hua River oil of mirbane, the absorption of binding activities charcoal can reach fast processing micro-polluted water, alleviates the water crisis fear that water pollutions causes; In sewage disposal, because coagulation basin gas distribution equipment has the function of gas stirring, support and microorganism oxygen supply, Powdered Activated Carbon can play the dual function of absorption and biomagnification, the clearance of heavy metal and ammonia nitrogen can be improved, in conjunction with dense medium/gac flocculation sediment, improve total tp removal rate, ensure standard water discharge.3, compared with common process, obviously added amount of chemical can be reduced.4, dense medium powder recycle, continous-stable Effec-tive Function, economy is good.5, under inclined-plate clarifying basin, gas-washing device can improve swash plate cleaning efficiency and swash plate cleaning recovery rate.6, dense medium clean and reuse adopts cyclone separator, and equipment is simple, and volume is little, not power consumption, good separating effect.7, by recovery, the quantity of reflux of sludge pump and Valve controlling dense medium powder and charcoal mud.8, by frequency and the intensity of gas blower and Valve controlling rapid sedimentation tank air purge equipment, air purge effect is ensured.
Preferably: dense medium described in the utility model/gac coagulating sedimentation water treatment device, the dense medium powder density adopted is greater than 2.5g/cm
3, grain diameter is 100-400 order (37-147 micron); The particle diameter of Powdered Activated Carbon is 100-300 order (47-147 micron).Described dense medium/gac coagulating sedimentation, in tap water, promotes completing fast of flocculation sediment process by the dual function of physics and chemistry, physical influence mainly increases the density forming flco, thus drive flco to precipitate rapidly; Chemical effect is mainly changed the current potential of whole flocculation system by the dense medium added, increase the labile form of flco, flco is united quickening; In stain disease, promote the advanced treatment of stain disease through physics, chemistry and biological triple role, physics, chemical flocculation carry out nitration denitrification effect in conjunction with biomagnification, improve the clearance of heavy metal, ammonia nitrogen, total phosphorus.
The beneficial effects of the utility model are:
The utility model has Economization on land usable floor area and civil engineering cost, the stability of water treatment efficiency is stronger, water body accident can be tackled, improve the rate of recovery of water factory's backwash water, the recycle of dense medium powder, dense medium powder recovery system is simpler, energy-conservation, continous-stable Effec-tive Function, the features such as economy is good.
In utility model content part, introduce the concept of a series of reduced form, this will further describe in embodiment part.The utility model content part does not also mean that the key feature and essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.
Advantage of the present utility model and feature is described in detail in conjunction with following.
Accompanying drawing explanation
Fig. 1 is device technique schematic flow sheet of the present utility model;
Fig. 2 is dense medium of the present utility model/gac coagulation-settlement process delivery turbidity (NTU) and turbidity removal rate (R
nTU) schematic diagram;
Fig. 3 is dense medium of the present utility model/gac coagulation-settlement process delivery turbidity (COD) and turbidity removal rate (R
cOD) schematic diagram;
Embodiment
In the following description, give a large amount of concrete details to provide to understand more thoroughly the utility model.But, it will be apparent to one skilled in the art that the utility model can be implemented without the need to these details one or more.In other example, in order to avoid obscuring with the utility model, technical characteristics more well known in the art are not described.
In order to thoroughly understand the utility model, by following description, detailed structure is proposed.Obviously, execution of the present utility model is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present utility model is described in detail as follows, but except these are described in detail, the utility model can also have other embodiments.
Below embodiment of the present utility model is described in detail.
With reference to Fig. 1-Fig. 3, a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device, its composition comprises: former water tank (1), submersible pump (2), line mixer (3), Powdered Activated Carbon slurry tank (4), Powdered Activated Carbon adds pump (5), flocculation agent dosing tank (6), flocculation agent dosing pump (7), coagulation basin (8), agitator one (9), coagulation basin gas distribution equipment (10), dense medium automatic adding device (11), gas blower (12), dense medium mixed reaction pond (13), coagulant aids dosing tank (14), coagulant aids dosing pump (15), agitator two (16), mix device three (17), aerobic fermentation tank (18), swash plate (19), water distributing pipe (20), rapid sedimentation tank (21), rapid sedimentation tank air purge equipment (22), sludge pump (23), mud recovery tube (24), mud return line (25), cyclone separator (26) and sludge sump (27), it is characterized in that, submersible pump (2) is provided with in described former water tank (1), submersible pump (2) is connected with coagulation basin (8) by pipeline, and the pipeline that submersible pump (2) is connected with coagulation basin (8) is also provided with line mixer (3), described Powdered Activated Carbon slurry tank (4) is connected with line mixer (3) by pipeline with flocculation agent dosing tank (6), the pipeline that Powdered Activated Carbon slurry tank (4) is connected with line mixer (3) is provided with Powdered Activated Carbon and adds pump (5), the pipeline that flocculation agent dosing tank (6) is connected with line mixer (3) is provided with flocculation agent dosing pump (7), described agitator one (9), agitator two (16) and mix device three (17) and be arranged in coagulation basin (8), dense medium mixed reaction pond (13) and aerobic fermentation tank (18) respectively, and being also provided with coagulation basin gas distribution equipment (10) in coagulation basin (8), coagulation basin gas distribution equipment (10) is connected with gas blower (12), dense medium automatic adding device (11) is connected with dense medium mixed reaction pond (13), coagulant aids dosing tank (14) is connected with aerobic fermentation tank (18), and the pipeline that coagulant aids dosing tank (14) is connected with aerobic fermentation tank (18) is provided with coagulant aids dosing pump (15), swash plate (19), water distributing pipe (20) and rapid sedimentation tank air purge equipment (22) is provided with in described rapid sedimentation tank (21), and rapid sedimentation tank (21) is connected with cyclone separator (26) by mud recovery tube (24), described cyclone separator (26) is connected with sludge sump (27), described rapid sedimentation tank (21) is connected with coagulation basin (8) by mud return line (25), the pipeline that described rapid sedimentation tank (21) connects is provided with sludge pump (23).
The implementation method of the present embodiment is: first, and pending former water pumps into the coagulation basin (8) of flocculation reactor through submersible pump (2) from former water tank (1); Line mixer (3) is established in this section of pipeline, be added to the feed-water end of line mixer (3) through flocculation agent dosing pump (7) from the flocculation agent PAC in flocculation agent dosing tank (6), add through Powdered Activated Carbon the feed-water end that pump (5) is also added to line mixer (3) from the Powdered Activated Carbon in Powdered Activated Carbon slurry tank (4), after line mixer (3) mixing, be added with the former water after PAC and Powdered Activated Carbon and enter coagulation basin (8); Agitator one (9) brings into operation simultaneously, gas blower (12) runs, air enters the bottom of coagulation basin (8) through coagulation basin gas distribution equipment (10), air bubble rocks while rise at the bottom of pond, plays mechanical stirring, oxygen supply aeration, support dense medium powder delay its effect of sinking to the former water in coagulation basin (8); Former water enters the dense medium mixed reaction pond (13) of flocculation reactor subsequently, and agitator two (16) brings into operation simultaneously; In dense medium mixed reaction pond (13), dense medium automatic adding device (11) adds appropriate dense medium, meanwhile, coagulant aids dosing pump (15) is also automatic adds the coagulant aids in coagulant aids dosing tank (14) by suitable dose; After certain hour, former water enters aerobic fermentation tank (18), and agitator three (17) brings into operation simultaneously; Rapid sedimentation tank (21) is entered by water distributing pipe (20) after slaking completes, described rapid sedimentation tank (21) is configured with individual layer swash plate or double-deck swash plate to accelerate precipitation, the supernatant liquid water outlet of rapid sedimentation tank (21), enters lower road water treatment operation; Excess sludge in flocculation reactor and rapid sedimentation tank is according to operating mode needs, or enter coagulation basin (8) by mud return line (25) and participate in reaction, or making dense medium powder produce with water and mud by mud recovery tube (24) through cyclone separator (26) is separated so that recycling use, recovery gained dense medium powder adds to dense medium mixed reaction pond (13) by pipeline again; The floc sludge produced after cyclone separator (26) is disposed to sludge sump (27) to process further; Rapid sedimentation tank is configured with rapid sedimentation tank air purge equipment (22) simultaneously, when rapid sedimentation tank swash plate (19) through after a while operation need the mud be deposited on swash plate (19) is cleaned, remove time, open the valve between gas blower (12) and rapid sedimentation tank air purge equipment (22), the air bubble constantly rocked progressively is risen via swash plate (19) by the bottom, plays the effect that the upper mud of swash plate (19) is removed in vibrations cleaning easily.
Embodiment 1:
Former water sample takes from THE LOWER YANGTZE VALLEY waterworks thief hole, the dense medium adopted/gac coagulation device technical process is: in former water, first add polymerize aluminum chloride (PAC) to concentration 8mg/L (taking density as 1.24g/ml liquid polymeric AlC13), Powdered Activated Carbon adds to concentration 20mg/L, polyacrylamide (PAM) is added to concentration 0.1mg/L after mixing, the dense medium quality added during coagulation is 100mg/L, the whole reaction times is 4min, water outlet after precipitation 2min.For investigating the stability of this technique, by above process operation 2 months, gained operation result as shown in the figure: in the cycle of operation, raw water turbidity variation range is 71-107NTU, COD
mnvariation range is between 3.4-4mg/L (shown in Fig. 2 and Fig. 3 medial error rod), delivery turbidity Absorbable organic halogens during whole service is at < 2NTU, COD Absorbable organic halogens is at about 2.4mg/L, and the clearance of turbidity and COD can reach 98% and about 34% respectively.Along with the prolongation of the cycle of operation, whole process water treatment effect trend of becoming better (shows as R
nTUprogressively raise), this shows that whole system more tends towards stability.
Table 1: to the water treatment effect during dense medium/gac coagulation-settlement process steady running
After this device steady running, the index of correlation of water outlet is as shown in table 1.In general, dense medium/gac coagulation-settlement process effluent quality is better, turbidity, COD
mn, the key index such as ammonia nitrogen can reach (GB5749-2006) national hygiene standard for drinking water.Can reach the clearance of more than 90% to total coli group and total number of bacterial colony, this can alleviate follow-up sterilization process burden, reduces associated cost.
Embodiment 2:
Table 2: dense medium/gac coagulation-settlement process is to the turbidity removal Performance comparision of the former water of difference
Remarks: PAC dosage 8mg/L, PAM dosage 0.1mg/L, Powdered Activated Carbon dosage 20mg/L
1.-probe temperature is 1-2 DEG C, and 2.-probe temperature is 30 DEG C
For investigating dense medium/gac coagulation-settlement process to the treatment effect at different water source: former water NTU variation range is from 15.9 to 423, and range of temperature is 1 DEG C-30 DEG C (except remarks illustrate, all the other treatment temps are 15-25 DEG C of envrionment temperature).As shown in table 2, dense medium/gac coagulation-settlement process has very high impact resistance, and when dosage is constant, no matter in the face of low-temperature and low turbidity or high concentrtion source water, the equal Absorbable organic halogens of its delivery turbidity remains on less than 2.In addition, this technique is to COD
mnclearance stable remain on about 35%, (former water COD in this scope of experiment
mn: 3.4-4.1mg/L), this Process for Effluent COD
mnnational drinking water standard (COD can be reached
mn< 3mg/L).This shows that this device better can tackle the seasonal variation of source water, has the popularity of its application, to the stability tool significance keeping water factory to run.
Embodiment 3:
Table 3: the handling property of dense medium/gac coagulation-settlement process/add sand flocculation sediment technique/conventional flocculation sediment technique compares
Remarks: PAC dosage 8mg/L, PAM dosage 0.1mg/L, Powdered Activated Carbon dosage 20mg/L
Contrast dense medium/Activated carbon separation technique, add sand and conventional flocculation process to the treatment effect of Changjiang River water, result is as shown in table 3: under equal operating parameters condition, the going turbid and go COD effect will significantly better than adding sand and common process of dense medium/gac coagulation-settlement process, this has fully showed dense medium separating technology superiority rapidly and efficiently.With add sand facies ratio, the utility model technique use the better effects if of dense medium powder, this is mainly because the density (~ 4.5g/cm of dense medium
3) than the density (~ 2.2g/cm of sand
3) larger, and make dense medium with certain electrocharge effect by the proportioning of various ingredients, have impact on flco current potential and stablize, thus make dense medium/gac coagulating sedimentation better effects if.It is worth mentioning that, according to conventional flocculation sediment, PAC dosage is 20mg/L, the effect that whole process residence time needs 1h just can reach similar with adding sand, this also shows from another point of view, and dense medium/gac coagulation-settlement process obviously can also reduce flocculant usage while significantly reducing the flocculation sediment time.
The beneficial effect of the present embodiment is:
The present embodiment has Economization on land usable floor area and civil engineering cost, the stability of water treatment efficiency is stronger, water body accident can be tackled, improve the rate of recovery of water factory's backwash water, the recycle of dense medium powder, dense medium powder recovery system is simpler, energy-conservation, continous-stable Effec-tive Function, the features such as economy is good.
The utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to the utility model to be limited in described scope of embodiments.In addition it will be understood by those skilled in the art that; the utility model is not limited to above-described embodiment; more kinds of variants and modifications can also be made, within these variants and modifications all drop on the utility model scope required for protection according to instruction of the present utility model.Protection domain of the present utility model defined by the appended claims and equivalent scope thereof.
Claims (2)
1. high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device, its composition comprises: former water tank (1), submersible pump (2), line mixer (3), Powdered Activated Carbon slurry tank (4), Powdered Activated Carbon adds pump (5), flocculation agent dosing tank (6), flocculation agent dosing pump (7), coagulation basin (8), agitator one (9), coagulation basin gas distribution equipment (10), dense medium automatic adding device (11), gas blower (12), dense medium mixed reaction pond (13), coagulant aids dosing tank (14), coagulant aids dosing pump (15), agitator two (16), mix device three (17), aerobic fermentation tank (18), swash plate (19), water distributing pipe (20), rapid sedimentation tank (21), rapid sedimentation tank air purge equipment (22), sludge pump (23), mud recovery tube (24), mud return line (25), cyclone separator (26) and sludge sump (27), it is characterized in that, submersible pump (2) is provided with in described former water tank (1), submersible pump (2) is connected with coagulation basin (8) by pipeline, and the pipeline that submersible pump (2) is connected with coagulation basin (8) is also provided with line mixer (3), described Powdered Activated Carbon slurry tank (4) is connected with line mixer (3) by pipeline with flocculation agent dosing tank (6), the pipeline that Powdered Activated Carbon slurry tank (4) is connected with line mixer (3) is provided with Powdered Activated Carbon and adds pump (5), the pipeline that flocculation agent dosing tank (6) is connected with line mixer (3) is provided with flocculation agent dosing pump (7), described agitator one (9), agitator two (16) and agitator three (17) are arranged in coagulation basin (8), dense medium mixed reaction pond (13) and aerobic fermentation tank (18) respectively, and being also provided with coagulation basin gas distribution equipment (10) in coagulation basin (8), coagulation basin gas distribution equipment (10) is connected with gas blower (12), dense medium automatic adding device (11) is connected with dense medium mixed reaction pond (13), coagulant aids dosing tank (14) is connected with aerobic fermentation tank (18), and the pipeline that coagulant aids dosing tank (14) is connected with aerobic fermentation tank (18) is provided with coagulant aids dosing pump (15), swash plate (19), water distributing pipe (20) and rapid sedimentation tank air purge equipment (22) is provided with in described rapid sedimentation tank (21), and rapid sedimentation tank (21) is connected with cyclone separator (26) by mud recovery tube (24), described cyclone separator (26) is connected with sludge sump (27), described rapid sedimentation tank (21) is connected with coagulation basin (8) by mud return line (25), the pipeline that described rapid sedimentation tank (21) connects is provided with sludge pump (23).
2. a kind of high-efficiency dense-medium matter/gac coagulating sedimentation water treatment device according to claim 1, is characterized in that, described rapid sedimentation tank air purge equipment (22) is the bottom being arranged at rapid sedimentation tank (21).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292921A (en) * | 2018-10-15 | 2019-02-01 | 太平洋水处理工程有限公司 | A kind of formula and application method of the dense media powder for water treatment |
| CN110028195A (en) * | 2019-05-22 | 2019-07-19 | 中铁环境科技工程有限公司 | System and technique for constructing tunnel wastewater treatment |
| CN110655181A (en) * | 2019-08-08 | 2020-01-07 | 北京恩菲环保股份有限公司 | Powdered activated carbon adding system |
| CN113428956A (en) * | 2021-06-30 | 2021-09-24 | 刘佰慧 | Flushable medium accelerated high-density sedimentation tank water treatment system and method |
-
2015
- 2015-08-28 CN CN201520699417.1U patent/CN204939139U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292921A (en) * | 2018-10-15 | 2019-02-01 | 太平洋水处理工程有限公司 | A kind of formula and application method of the dense media powder for water treatment |
| CN110028195A (en) * | 2019-05-22 | 2019-07-19 | 中铁环境科技工程有限公司 | System and technique for constructing tunnel wastewater treatment |
| CN110655181A (en) * | 2019-08-08 | 2020-01-07 | 北京恩菲环保股份有限公司 | Powdered activated carbon adding system |
| CN113428956A (en) * | 2021-06-30 | 2021-09-24 | 刘佰慧 | Flushable medium accelerated high-density sedimentation tank water treatment system and method |
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