CN102381817A - System for processing waste water generated in acrylamide production and processing method thereof - Google Patents
System for processing waste water generated in acrylamide production and processing method thereof Download PDFInfo
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- CN102381817A CN102381817A CN2011103110940A CN201110311094A CN102381817A CN 102381817 A CN102381817 A CN 102381817A CN 2011103110940 A CN2011103110940 A CN 2011103110940A CN 201110311094 A CN201110311094 A CN 201110311094A CN 102381817 A CN102381817 A CN 102381817A
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Abstract
A system for processing waste water generated in acrylamide production is characterized by comprising a neutralization adjustment tank, an upflow anaerobic sludge blanket (UASB) reactor, a coagulating sedimentation device, a secondary sedimentation tank, an A/O reaction tank, a discharging tank or a dewatering pipe network and a sludge concentration tank. The invention also discloses a waste water processing method adopting the system for processing waste water generated in acrylamide production. Compared with the prior art, the system and the method have the advantages that most suspended matters in the waste water are removed by coagulating sedimentation, COD (Chemical Oxygen Demand) in the waste water is resolved and converted, and is combined with UASB reaction and A/O technology, the denitrification reaction is completed in a biotic environment where anaerobism, oxygen deficiency and oxic aerobic change alternately.
Description
Technical field
The present invention relates to a kind of treatment system of acrylic amide factory effluent, the invention also discloses the treatment process of acrylic amide factory effluent.
Background technology
The polymkeric substance of acrylic amide and verivate are widely used in industries such as oil, medicine, papermaking, weaving, mining, water treatment, prone soil improvement, seed pelleting, aquaculture, food-processing; Be known as all trades auxiliary agent, it is that raw material processes with the petroleum chemicals vinyl cyanide.The waste water of acrylic amide industry is mainly produced by fermented liquid membrane sepn operation and acrylic amide refining step, and the processing scheme that adopts at present is the general wastewater processing technology of tradition still, and total system mainly is made up of two steps of anaerobic and aerobic.Waste water after handling still contains a large amount of microbiological contamination body suspended substances, and the ammonia nitrogen amount in the waste water is high, and conventional processing does not reach drainage requirement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of treatment effect Canon to reach the treatment system of the acrylic amide factory effluent of emission request to the above-mentioned state of the art.
Technical problem to be solved by this invention is to provide a kind of treatment effect Canon to reach the treatment process of the acrylic amide factory effluent of emission request to the above-mentioned state of the art.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of treatment system of acrylic amide factory effluent is characterized in that comprising
In and equalizing tank, have waste water add the inlet and pH regulator liquid add inlet;
Up flow anaerobic sludge blanket reactor has that first fluid inlet, first liquid outlet, Poly aluminum Chloride (PAC) add inlet, poly amic acid adds inlet and sludge outlet;
The coagulating sedimentation device, have with aforementioned in second fluid inlet that is communicated with the liquid outlet of equalizing tank reach second liquid outlet that is communicated with aforementioned first fluid inlet; And
Secondary sedimentation basins has and aforementioned the 3rd fluid inlet, the 3rd liquid outlet and bypass outlet;
The A/O reaction tank, the filtrating refluxing opening that has the 4th fluid inlet that is communicated with aforementioned first liquid outlet, four liquid outlets that are communicated with aforementioned the 3rd fluid inlet and be communicated with aforementioned bypass outlet;
Discharging pond or network of drains have the 5th fluid inlet that communicates with aforementioned the 3rd liquid outlet; And
Sludge thickener, be communicated with aforesaid sludge outlet and bypass outlet and have with aforementioned in the 5th liquid outlet that communicates with equalizing tank.
Described sludge thickener is connected with between a desliming, have between this desliming with said in the 6th liquid outlet that communicates with equalizing tank.
Further, this system also comprises by an accident pool, this accident pool have microbiological contamination waste water add inlet and with said in and the liquid outlet that is communicated with of equalizing tank.
Further, have phosphoric acid salt on the feed liquor pipeline of described up flow anaerobic sludge blanket reactor and add inlet.
Further, this system also comprise one can in the air blast machine room of equalizing tank and A/O reaction tank air feed.
Further, described coagulating sedimentation device also have Poly aluminum Chloride (PAC) add the inlet and poly amic acid add inlet.
A kind of acrylic amide production wastewater treatment method is characterized in that comprising the steps:
(1) during the waste water of acrylic amide production process generation joins and in the equalizing tank, adds alkali or acid, regulate pH value to 8～9;
(2) from the waste water that comes out with equalizing tank carry out primary sedimentation through the coagulating sedimentation device;
(3) the waste water process up flow anaerobic sludge blanket reactor that comes out from the coagulating sedimentation device resolves into the small molecules product with organic pollutant;
(4) waste water that comes out from up flow anaerobic sludge blanket reactor carries out the nitrification and denitrification reaction through the A/O reaction tank;
(5) last, enter into discharging pond or network of drains through the secondary sedimentation basins post precipitation.
Further, be added with the HSB composite bacteria in the described up flow anaerobic sludge blanket reactor.
Compared with prior art; The invention has the advantages that: remove most suspended substance in the waste water through coagulating sedimentation; And,, accomplish denitrification reaction through the coenocorrelation of anaerobism, anoxic and aerobic alternate in conjunction with the UASB of postorder reaction and A/O technology with the COD decomposition and inversion in the waste water.Under anaerobic, through the acidication reaction, convert organonitrogen into ammonia nitrogen.Under anoxia condition, denitrifying bacteria utilizes organic carbon in the sewage as electronics worker donor, and " anaerobic respiration becomes nitrogen to discharge nitrate-nitrogen reduction in the phegma as electron acceptor(EA) with nitrate salt.Accomplish denitrification process.And under aerobic condition, nitrifier is oxidized to nitrate salt to the ammonia nitrogen in the sewage, refluxes to anoxic pond, for necessary preparation is carried out in denitrogenation again.
Description of drawings
Fig. 1 is the embodiment process flow sheet.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Between during the treatment system of the acrylic amide factory effluent in the present embodiment comprises and equalizing tank 1, up flow anaerobic sludge blanket reactor 2 (UASB reactor drum), coagulating sedimentation device 3, secondary sedimentation basins 6, A/O reaction tank 4, discharging pond 7, dosing 10, between air blast machine room 5, sludge thickener 9, desliming 8 and accident pool 11.
In with equalizing tank 1 have waste water add the inlet and pH regulator liquid add inlet, up flow anaerobic sludge blanket reactor 2 has the first fluid inlet 1a and the first liquid outlet 1b, the first fluid inlet 1a is provided with the feed liquor pipeline, has phosphoric acid salt on the feed liquor pipeline and adds inlet.
Secondary sedimentation basins 6 has and the 3rd fluid inlet 3a, the 3rd liquid outlet 3b and bypass outlet 2d.The filtrating refluxing opening 3d that A/O reaction tank 4 has the 4th fluid inlet 4a that is communicated with the first liquid outlet 1b, the 4th liquid outlet 4b that is communicated with the 3rd fluid inlet 3a and is communicated with bypass outlet 2d.Discharging pond 7 has the 5th fluid inlet 5a that communicates with the 3rd liquid outlet 3b.Sludge thickener 9 and sludge outlet 1d and bypass outlet 2d be communicated with and have with in and the 5th liquid outlet 5b that communicates of equalizing tank 1.
8 are connected between sludge thickener 9 and desliming, between desliming 8 have with in the 6th liquid outlet 6b that communicates with equalizing tank 1.Accident pool 11 have microbiological contamination waste water add inlet and with in and the liquid outlet 7b that is communicated with of equalizing tank.Air blast machine room 5 can in equalizing tank 1 and A/O reaction tank 4 air feed, to improve the water treatment effect.10 can provide acid, alkali, PAC, PAM and phosphoric acid salt between dosing.
The treatment process of the acrylic amide factory effluent in the present embodiment is utilized above-mentioned Waste Water Treatment, specifically comprises the steps:
(1) during the waste water of acrylic amide production process generation joins and in the equalizing tank 1, adds alkali or acid, regulate pH value to 8～9;
(2) from the waste water that comes out with equalizing tank 1 carry out primary sedimentation through coagulating sedimentation device 3;
The waste water process of (3) coming out from coagulating sedimentation device 3 is added with the up flow anaerobic sludge blanket reactor 2 of HSB composite bacteria; Organic pollutant is resolved into the small molecules product, and wherein the technology of HSB composite bacteria can be with reference to the disclosed HSB composite bacteria that adopts No. 52123, Taiwan patent;
(4) waste water that comes out from up flow anaerobic sludge blanket reactor 3 carries out the nitrification and denitrification reaction through A/O reaction tank 4;
(5) last, enter into discharging pond 7 through the secondary sedimentation basins post precipitation.
If microbiological contamination waste water is arranged, can cut accident pool 11 earlier, enter in proportion again with equalizing tank in, and the sanitary wastewater in the acrylic amide production process can directly be mixed in and equalizing tank.
Muddy water mixed solution is after secondary sedimentation basins 6 separates, and waste water reaches standard of drainage and enters discharging pond 7, and the filtrating in the mud is back to A/O reaction tank 4.The primary sludge that the excess sludge of secondary sedimentation basins 6 and coagulating sedimentation device 3 discharged enters sludge thickener 9, and thickened sludge transport outward through dewatering after, between sludge thickener 9 supernatants and desliming in the 8 filtrating entering that produce and equalizing tank 1.
The significant parameter of original waste water is following in the present embodiment: pH:4～12; COD:8000mg/l; Ammonia nitrogen: 800mg/l; SS is 1270mg/l.
Water treatment effect is following:
Claims (8)
1. the treatment system of an acrylic amide factory effluent is characterized in that comprising
In and equalizing tank, have waste water add the inlet and pH regulator liquid add inlet;
Up flow anaerobic sludge blanket reactor has that first fluid inlet, first liquid outlet, Poly aluminum Chloride (PAC) add inlet, poly amic acid adds inlet and sludge outlet;
The coagulating sedimentation device, have with aforementioned in second fluid inlet that is communicated with the liquid outlet of equalizing tank reach second liquid outlet that is communicated with aforementioned first fluid inlet; And
Secondary sedimentation basins has and aforementioned the 3rd fluid inlet, the 3rd liquid outlet and bypass outlet;
The A/O reaction tank, the filtrating refluxing opening that has the 4th fluid inlet that is communicated with aforementioned first liquid outlet, four liquid outlets that are communicated with aforementioned the 3rd fluid inlet and be communicated with aforementioned bypass outlet;
Discharging pond or network of drains have the 5th fluid inlet that communicates with aforementioned the 3rd liquid outlet; And
Sludge thickener, be communicated with aforesaid sludge outlet and bypass outlet and have with aforementioned in the 5th liquid outlet that communicates with equalizing tank.
2. the treatment system of acrylic amide factory effluent according to claim 1 is characterized in that described sludge thickener is connected with between a desliming, have between this desliming with said in the 6th liquid outlet that communicates with equalizing tank.
3. the treatment system of acrylic amide factory effluent according to claim 1 is characterized in that this system also comprises by an accident pool, this accident pool have microbiological contamination waste water add inlet and with said in and the liquid outlet that is communicated with of equalizing tank.
4. the treatment system of acrylic amide factory effluent according to claim 1 is characterized in that having phosphoric acid salt on the feed liquor pipeline of described up flow anaerobic sludge blanket reactor adds inlet.
5. the treatment system of acrylic amide factory effluent according to claim 1, it is characterized in that this system also comprise one can in the air blast machine room of equalizing tank and A/O reaction tank air feed.
6. the treatment system of acrylic amide factory effluent according to claim 1, it is characterized in that described coagulating sedimentation device also have Poly aluminum Chloride (PAC) add the inlet and poly amic acid add inlet.
7. the application method of wastewater treatment of treatment system of requirement 1 described acrylic amide factory effluent of having the right is characterized in that comprising the steps:
(1) during the waste water of acrylic amide production process generation joins and in the equalizing tank, adds alkali or acid, regulate pH value to 8～9;
(2) from the waste water that comes out with equalizing tank carry out primary sedimentation through the coagulating sedimentation device;
(3) the waste water process up flow anaerobic sludge blanket reactor that comes out from the coagulating sedimentation device resolves into the small molecules product with organic pollutant;
(4) waste water that comes out from up flow anaerobic sludge blanket reactor carries out the nitrification and denitrification reaction through the A/O reaction tank;
(5) last, enter into discharging pond or network of drains through the secondary sedimentation basins post precipitation.
8. the method for wastewater treatment of the treatment system of acrylic amide factory effluent according to claim 7 is characterized in that being added with in the described up flow anaerobic sludge blanket reactor HSB composite bacteria.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110311094 CN102381817B (en) | 2011-10-14 | 2011-10-14 | System for processing waste water generated in acrylamide production and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110311094 CN102381817B (en) | 2011-10-14 | 2011-10-14 | System for processing waste water generated in acrylamide production and processing method thereof |
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| CN102381817B CN102381817B (en) | 2013-03-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439262A (en) * | 2014-08-28 | 2016-03-30 | 中国石油化工股份有限公司 | Organic amine-containing wastewater pretreatment method |
| CN108083572A (en) * | 2017-12-22 | 2018-05-29 | 中国海洋大学 | A kind of method and apparatus for handling the waste water containing polyacrylamide |
| CN108911367A (en) * | 2018-06-26 | 2018-11-30 | 浙江环耀环境建设有限公司 | Polyamide waste water treatment system and its treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003154389A (en) * | 2001-11-21 | 2003-05-27 | Kubota Corp | Advanced treatment method for sewage/wastewater |
| CN101439918A (en) * | 2008-11-28 | 2009-05-27 | 南京大学 | Method for processing wastewater from polyacrylamide production |
| CN201520698U (en) * | 2009-09-20 | 2010-07-07 | 浙江华强环境科技有限公司 | Leachate treatment system based on MBR system and nano-filtration system |
| CN102107988A (en) * | 2010-12-22 | 2011-06-29 | 上海康盛环保能源科技有限公司 | Phenol-amine wastewater treatment and recycling method and device |
-
2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003154389A (en) * | 2001-11-21 | 2003-05-27 | Kubota Corp | Advanced treatment method for sewage/wastewater |
| CN101439918A (en) * | 2008-11-28 | 2009-05-27 | 南京大学 | Method for processing wastewater from polyacrylamide production |
| CN201520698U (en) * | 2009-09-20 | 2010-07-07 | 浙江华强环境科技有限公司 | Leachate treatment system based on MBR system and nano-filtration system |
| CN102107988A (en) * | 2010-12-22 | 2011-06-29 | 上海康盛环保能源科技有限公司 | Phenol-amine wastewater treatment and recycling method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105439262A (en) * | 2014-08-28 | 2016-03-30 | 中国石油化工股份有限公司 | Organic amine-containing wastewater pretreatment method |
| CN105439262B (en) * | 2014-08-28 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of preprocess method containing organic amine wastewater |
| CN108083572A (en) * | 2017-12-22 | 2018-05-29 | 中国海洋大学 | A kind of method and apparatus for handling the waste water containing polyacrylamide |
| CN108911367A (en) * | 2018-06-26 | 2018-11-30 | 浙江环耀环境建设有限公司 | Polyamide waste water treatment system and its treatment process |
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| CN102381817B (en) | 2013-03-27 |
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