CN105174640B - The biochemical processing process of painting waste water - Google Patents
The biochemical processing process of painting waste water Download PDFInfo
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- CN105174640B CN105174640B CN201510649107.3A CN201510649107A CN105174640B CN 105174640 B CN105174640 B CN 105174640B CN 201510649107 A CN201510649107 A CN 201510649107A CN 105174640 B CN105174640 B CN 105174640B
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Abstract
The invention discloses a kind of biochemical processing process of painting waste water；It is an object of the invention to provide one kind without materialized pretreatment, the biochemical processing process of the painting waste water of COD value in waste water can be effectively reduced；Its processing technological flow is：（1）Preconditioning reaction；（2）Anaerobic reaction；（3）One-level aerobic reaction；（4）Two grades of aerobic reactions；（5）Precipitation；It has without materialized pretreatment, processing cost is low, treatment effeciency is high, high treating effect the features such as.
Description
Technical field
The invention belongs to waste water treatment process field, especially a kind of biochemical processing process of painting waste water.
Background technology
Contain high-concentration hardly-degradable organic matter in painting waste water, composition is complicated, toxicity is big, biodegradability is poor, water quality and quantity
The features such as fluctuating big.Treatment technology conventional at present be materializing strategy or materialization it is pre--technique that is combined of biochemical treatment.Such as patent
Number a kind of organic wastewater treatment process is disclosed for 200310122764.x patent, its processing step is：（a）Materialization is located in advance
Reason:Organic wastewater is passed through light electrolysis reduction pond, organic wastewater is occurred iron-carbon micro-electrolysis under blast aeration stirring action anti-
Should, hydrogen peroxide progress Fenton oxidation is added into the organic wastewater after electrolysis, then organic wastewater is entered coagulative precipitation tank
And add NaOH and PAM progress coagulating sedimentation；（b）Anaerobic hydrolysis-acidification processing:Organic wastewater through materialized pretreatment is passed through
Effectively compound microbial is put into anaerobic acidification hydrolytic tank, pond, above-mentioned organic wastewater is carried out effectively hydrolyzing acidifying；（c）TCBS
System processing：Organic wastewater through anaerobic hydrolysis-acidification is passed through TCBS reactors, while rabbit effectively compound microbial, makes to have
Machine waste water is mixed with the high concentration returned sludge after denitrogenation, and above-mentioned mixed liquor is passed through into main aeration tank completes final organic matter drop
Solution and nitrifying process.Materializing strategy technology in the technique is using techniques such as coagulation, microwave, electrolysis.Coagulation process consumption is a large amount of
Medicament, while produce substantial amounts of materialized mud, processing cost of disposal is high, and waste water generally can not row up to standard after coagulating treatment
Put, it is necessary to further processing.Microwave, electrolysis, usually require regulation pH before and after the processing, consume substantial amounts of medicament, operating cost height,
And equally exist the problem of processed waste water is difficult to qualified discharge.Therefore the waste water treatment process, in materialization（In advance）Processing procedure
It there is operation expense high, complex operation, and the problems such as COD value effect difference.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind without materialized pretreatment, can effectively it reduce
The biochemical processing process of the painting waste water of COD value in waste water.
In order to achieve the above object, a kind of biochemical processing process of painting waste water designed by the present invention, its handling process
Flow is：
（1）Preconditioning reaction：Painting waste water squeezes into regulating reservoir after being discharged into collecting pit through elevator pump, by adding acid/base
Wastewater pH is adjusted, pH value is maintained between 6.0-9.0, waste water COD is adjusted using anaerobic reactor water outlet, makes at COD value
Between 5,000-100,000mg/L, the temperature control of the waste water wherein in regulating reservoir is at 33-40 DEG C；
（2）Anaerobic reaction：The anaerobe degraded that regulating reservoir waste water enters in anaerobic mud bed reactor, granule sludge
Organic substance in waste water, is translated into biogas, wherein the temperature control of the waste water in anaerobic mud bed reactor is in 33-40
DEG C, volumetric loading is controlled in 5-20kg/ m3, high effective three phase separator is set at the top of anaerobic mud bed reactor, gas-liquid is realized
Solid efficiently separate, settling of granular sludge is retained in anaerobic mud bed reactor, reduce water outlet in anaerobic sludge and suspension
Solid, gas, which then escapes three phase separator, is used for the recycling of the energy；
（3）One-level aerobic reaction：Anaerobic effluent enters on the aerobic carrier flow bed further aerobic degradation of reaction tank, carrier
The biomembrane of attachment and suspended sludge Synergistic degradation pollutant, reduce the COD of waste water, wherein in aerobic carrier flow bed reaction tank
Dissolved oxygen control in 0.5-5.0mg/L, volumetric loading is controlled in 0.5-2.0kg/m3；
（4）Two grades of aerobic reactions：Undegradable pollutant enters activated sludge in aerobic carrier flow bed reaction tank water outlet
Pond is further degraded, and the dissolved oxygen control wherein in activated sludge tank is in 1.0-4.0 mg/L, and volumetric loading is controlled in 0.5-1.0
kg/m3；
（5）Precipitation：Activated sludge tank water outlet realizes mud-water separation, a part of sludge reflux to aerobic carrier into sedimentation basin
Thermopnore reaction tank, makes the concentration of microorganism in aerobic carrier flow bed reaction tank be maintained at 2000-6000mg/L, its sludge is returned
Stream is than being 50-200%, another part sludge discharge sedimentation basin, Chinese effluent to garden sewage network.
Preferably, in described regulating reservoir, the pH value of waste water being adjusted using hydrochloric acid, sodium hydroxide, makes the pH value of waste water
It is maintained at 7.2-7.8.
Preferably, in described regulating reservoir, waste water COD is controlled in 20,000-25,000mg/l.
Preferably, in described anaerobic mud bed reactor, temperature control is at 35-38 DEG C.
Preferably, in described anaerobic mud bed reactor, volumetric loading is controlled in 5-6kg/m3。
Preferably, in described aerobic carrier flow bed reaction tank, dissolved oxygen control is born in 2.5-3.0mg/L, volume
Lotus is controlled in 1.5kg/m3。
Preferably, in described activated sludge tank, dissolved oxygen control exists in 2.5-3 mg/L, volumetric loading control
0.8kg/m3。
Preferably, in described sedimentation basin, return sludge ratio is 80-100%.
Beneficial effects of the present invention：
1st, this PROCESS FOR TREATMENT painting waste water saves substantial amounts of medicament without materialized pretreatment process, has saved investment fortune
Row cost.
2nd, the anaerobic granular sludge bed reactor for treatment painting waste water that this technique is used, treatment effeciency is high, generates a large amount of
Biogas, available for energy recovery, while reducing the load of follow-up Aerobic Process for Treatment, reduce at aeration energy consumption and Treatment of Sludge
It is set to this.
3rd, after being handled through present invention process, waste water up to standard can be discharged into garden pipe network or in line requirement, and longtime running is stable,
The problem of painting scale wastewater treatment is solved, the lifting of the target and environmental benefit of industry energy conservation emission reduction is realized.
A kind of biochemical processing process of painting waste water of the present invention；Waste water is pre-processed by preconditioning pond, then
Pretreated waste water is poured into anaerobic mud bed reactor, decomposition oxygen is carried out to the organic impurities in waste water by anaerobic bacteria
Change, the waste water after processing is then being poured into aerobic carrier flow bed reaction tank and activated sludge tank successively, is passing through aerobic bacteria pair
Organic impurities in waste water carries out oxidation Decomposition, is progressively decomposed the impurity in waste water by anaerobic and aerobic reaction, most laggard
Enter sedimentation basin, by the contamination precipitation in waste water, waste water is reached discharge standard.
Therefore, it have without materialized pretreatment, processing cost is low, treatment effeciency is high, high treating effect the features such as.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.：
Embodiment one：
As shown in figure 1, waste water initially enters collecting pit, boosted pump squeezes into regulating reservoir, and liquid feeding alkali regulation wastewater pH exists
7.5, plus sedimentation basin water outlet regulation COD is 20,000 mg/L.Regulating reservoir waste water, which is heated to after 35 DEG C, enters anaerobic grain sludge
Bed reactor, its wastewater temperature is 35 DEG C, and its load is 5kg/ m3, the biogas of generation, which is used to heat, to be produced steam to reclaim heat
Energy.Anaerobic Treatment water outlet enters aerobic carrier flow bed reaction tank, and COD loads are 1.5kg/ m3, dissolved oxygen concentration is 2.5
Mg/L, is decomposed the organic matter in waste water by aerobic flowing reactive bed.Aerobic carrier flow bed reaction tank water outlet enters activity
Sludge-tank, COD loads are 0.8kg/ m3, dissolved oxygen concentration is 3.0 mg/L, and sludge concentration is 3g/L, by the residue in waste water
Organic matter is decomposed.Activated sludge tank water outlet enters sedimentation basin, and by the contamination precipitation in waste water, the waste water for handling up to standard is discharged into pipe
Net.
Painting waste water raw water and the effluent quality after the PROCESS FOR TREATMENT of the present invention see the table below shown：
Embodiment two：
As shown in figure 1, waste water initially enters collecting pit, boosted pump squeezes into regulating reservoir, and liquid feeding alkali regulation wastewater pH exists
7.8, plus sedimentation basin water outlet regulation COD is 25,000 mg/L.Regulating reservoir waste water, which is heated to after 33 DEG C, enters anaerobic grain sludge
Bed reactor, its wastewater temperature is 38 DEG C, and its load is 5.5kg/ m3, the biogas of generation, which is used to heat, to be produced steam to reclaim
Heat energy.Anaerobic Treatment water outlet enters aerobic carrier flow bed reaction tank, and COD loads are 1.5kg/ m3, dissolved oxygen concentration is 3.0
Mg/L, is decomposed the organic matter in waste water by aerobic flowing reactive bed.Aerobic carrier flow bed reaction tank water outlet enters activity
Sludge-tank, COD loads are 0.8kg/ m3, dissolved oxygen concentration is 3.0 mg/L, and sludge concentration is 3g/L, by the residue in waste water
Organic matter is decomposed.Activated sludge tank water outlet enters sedimentation basin, and by the contamination precipitation in waste water, the waste water for handling up to standard is discharged into pipe
Net.
Painting waste water raw water and the effluent quality after the PROCESS FOR TREATMENT of the present invention see the table below shown：
Embodiment three：
As shown in figure 1, waste water initially enters collecting pit, boosted pump squeezes into regulating reservoir, and liquid feeding alkali regulation wastewater pH exists
7.2, plus sedimentation basin water outlet regulation COD is 30,000 mg/L.Regulating reservoir waste water, which is heated to after 40 DEG C, enters anaerobic grain sludge
Bed reactor, its wastewater temperature is 38 DEG C, and its load is 6.0kg/ m3, the biogas of generation, which is used to heat, to be produced steam to reclaim
Heat energy.Anaerobic Treatment water outlet enters aerobic carrier flow bed reaction tank, and COD loads are 1.5kg/ m3, dissolved oxygen concentration is 2.8
Mg/L, is decomposed the organic matter in waste water by aerobic flowing reactive bed.Aerobic carrier flow bed reaction tank water outlet enters activity
Sludge-tank, COD loads are 0.8kg/ m3, dissolved oxygen concentration is 3.0 mg/L, and sludge concentration is 3g/L, by the residue in waste water
Organic matter is decomposed.Activated sludge tank water outlet enters sedimentation basin, and by the contamination precipitation in waste water, the waste water for handling up to standard is discharged into pipe
Net.
Painting waste water raw water and the effluent quality after the PROCESS FOR TREATMENT of the present invention see the table below shown：
Claims (8)
1. a kind of biochemical processing process of painting waste water, its processing technological flow is：
（1）Preconditioning reaction：Painting waste water squeezes into regulating reservoir after being discharged into collecting pit through elevator pump, by adding acid/base to adjust
Wastewater pH, makes pH value be maintained between 6.0-9.0, and waste water COD is adjusted using anaerobic reactor water outlet, COD value is in 5,
Between 000-100,000mg/L, the temperature control of the waste water wherein in regulating reservoir is at 33-40 DEG C；
（2）Anaerobic reaction：The anaerobe degrading waste water that regulating reservoir waste water enters in anaerobic mud bed reactor, granule sludge
In organic substance, be translated into biogas, the wherein temperature control of the waste water in anaerobic mud bed reactor at 33-40 DEG C,
Volumetric loading is controlled in 5-20kg/ m3, high effective three phase separator is set at the top of anaerobic mud bed reactor, gas-liquid-solid is realized
Efficiently separate, settling of granular sludge is retained in anaerobic mud bed reactor, is reduced the anaerobic sludge in water outlet and is suspended solid
Body, gas, which then escapes three phase separator, is used for the recycling of the energy；
（3）One-level aerobic reaction：Anaerobic effluent enters to be adhered on the aerobic carrier flow bed further aerobic degradation of reaction tank, carrier
Biomembrane and suspended sludge Synergistic degradation pollutant, the COD of waste water is reduced, wherein molten in aerobic carrier flow bed reaction tank
Oxygen control is solved in 0.5-5.0mg/L, volumetric loading is controlled in 0.5-2.0kg/m3；
（4）Two grades of aerobic reactions：Undegradable pollutant enters into activated sludge tank in aerobic carrier flow bed reaction tank water outlet
One step is degraded, and the dissolved oxygen control wherein in activated sludge tank is in 1.0-4.0 mg/L, and volumetric loading is controlled in 0.5-1.0 kg/
m3；
（5）Precipitation：Activated sludge tank water outlet realizes mud-water separation, a part of sludge reflux to aerobic carrier flow into sedimentation basin
Bed reaction tank, makes the concentration of microorganism in aerobic carrier flow bed reaction tank be maintained at 2000-6000mg/L, its return sludge ratio
For 50-200%, another part sludge discharge sedimentation basin, Chinese effluent to garden sewage network.
2. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described regulating reservoir
In, the pH value of waste water is adjusted using hydrochloric acid, sodium hydroxide, the pH value of waste water is maintained at 7.2-7.8.
3. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described regulating reservoir
In, waste water COD is controlled in 20,000-25,000mg/l.
4. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described anaerobic sludge
In bed reactor, temperature control is at 35-38 DEG C.
5. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described anaerobic sludge
In bed reactor, volumetric loading is controlled in 5-6kg/m3。
6. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described aerobic carrier
In thermopnore reaction tank, dissolved oxygen control is controlled in 1.5kg/m in 2.5-3.0mg/L, volumetric loading3。
7. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described activated sludge
Chi Zhong, dissolved oxygen control is controlled in 0.8kg/m in 2.5-3 mg/L, volumetric loading3。
8. a kind of biochemical processing process of painting waste water according to claim 1, it is characterised in that：Described sedimentation basin
In, return sludge ratio is 80-100%.
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| CN107055957A (en) * | 2017-04-12 | 2017-08-18 | 兴化格林生物制品有限公司 | A kind of sewage disposal system |
| CN108918811A (en) * | 2018-07-27 | 2018-11-30 | 玖龙纸业（沈阳）有限公司 | A kind of test method that detection chemical industry auxiliary material influences anaerobic-aerobic |
| CN110436709A (en) * | 2019-08-14 | 2019-11-12 | 浙江巨能环境工程有限公司 | A kind of high concentration waste water of cis-anhydride processing unit and processing method |
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| US7226539B2 (en) * | 2003-06-19 | 2007-06-05 | University Of Hawaii | Bionest reactor for the application of anaerobic wastewater treatment and bioenergy recovery |
| CN100482603C (en) * | 2006-12-20 | 2009-04-29 | 南京大学 | Advanced treatment method of organic pigment waste water |
| CN101811797B (en) * | 2010-02-11 | 2011-09-07 | 新奥科技发展有限公司 | Coal gasification waste water biochemical treatment equipment and method |
| CN102092895A (en) * | 2010-12-16 | 2011-06-15 | 北京中兵北方环境科技发展有限责任公司 | Method for treating industrial waste water based on combination of secondary biochemistry process and primary physico-chemical process |
| CN102303937A (en) * | 2011-06-20 | 2012-01-04 | 喻明生 | Technology for treating high-concentration and high-chromaticity wastewater |
| CN102583877A (en) * | 2012-01-19 | 2012-07-18 | 宜兴市环球水处理设备有限公司 | Novel paint wastewater treatment device |
| CN103466877B (en) * | 2013-08-22 | 2015-05-27 | 桐昆集团浙江恒通化纤有限公司 | Full-biochemical treatment process of chemical fiber high-concentration spin finish effluent |
| CN203960003U (en) * | 2014-06-18 | 2014-11-26 | 北京碧水源环境工程有限公司 | Process system for the treatment of high gravity fermentation class or chemosynthesis class pharmacy waste water |
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Address after: 314500 No. 1500 rice road, Indus street, Tongxiang, Zhejiang Patentee after: Zhejiang Juneng Environmental Engineering Co Ltd Address before: 314500, No. 1500 rice road, Indus street, Tongxiang, Zhejiang, Jiaxing Patentee before: ZHEJIANG JUNENG CO., LTD. |
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