CN102964021A - Method for processing organic waste water - Google Patents
Method for processing organic waste water Download PDFInfo
- Publication number
- CN102964021A CN102964021A CN2011102574717A CN201110257471A CN102964021A CN 102964021 A CN102964021 A CN 102964021A CN 2011102574717 A CN2011102574717 A CN 2011102574717A CN 201110257471 A CN201110257471 A CN 201110257471A CN 102964021 A CN102964021 A CN 102964021A
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- organic waste
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Abstract
The invention relates to a method for processing organic waste water, which belongs to the organic waste water processing technical field. The method comprises the following steps: pretreating the waste water, introducing the pretreated waste water in an A pool of A/O reaction pools, introducing a mixed liquor treated by the A pool in an A pool sedimentation basin, discharging a sediment at the bottom of the A pool sedimentation basin out of a system, introducing an effluent in an O pool with a certain of powder active carbon for biological aeration treatment, introducing the effluent after the biological aeration treatment by the O pool in an O pool sedimentation basin for separating the slurry and water, introducing a supernatant in the O pool sedimentation basin in BAF, enabling the sediment at the bottom to flow back to the A pool, performing aeration and backwashing on the supernatant in the BAF, discharging the processed water reaching the standard and enabling backwashing water to flow back the A pool. The method can effectively remove the organic matter and ammonia nitrogen and can increase the water quality of the effluent.
Description
Technical field
The invention belongs to the Technologies for Organic Wastewater Treatment field, relate more specifically to improve by biological treatment and the reasonable combination of gac the technique of the treatment of Organic Wastewater degree of depth.
Background technology
The water that is on the rise for China pollutes, and sewage drainage standard improves in country, and COD as strict as possible to 60mg/L, and will increase the emission standard of total nitrogen from 100mg/L.COD and ammonia nitrogen are respectively as strict as possible to 50mg/L with below the 8mg/L in indivedual local sewage drainage standards, and the total nitrogen standard is to 15mg/L.Constantly as strict as possible sewage drainage standard, newly-increased individual event pollutent index and the increasing of law enforcement dynamics had higher requirement to the processing degree of depth of trade effluent.Gac has good adsorption to nonpolar organic matter, but because the gac price is high, loading capacity is limited, has increased processing costs.Present method improves the treatment of Organic Wastewater degree of depth by the reasonable combination of biological treatment and gac.
200910028702.X disclose a kind of method for high-efficiency combined treatment of dyeing waste water.The steps include: dyeing waste water is pumped into the hydrolytic tank acidification that is hydrolyzed; Acidication is processed waste water afterwards carries out a biological disposal upon in the biological reinforced reaction tank of A/O (PACT); Coagulating sedimentation is carried out in the water outlet of will carrying out a biological disposal upon; Can the water outlet discharging through filtering after the coagulating sedimentation.This invention only adds Powdered Activated Carbon (PACT) in the A/O pond, general fast filtering is adopted in filtration behind the coagulating sedimentation, this two aspect all causes the processing degree of depth of waste water inadequate easily, and the poor filtration effect in common fast filtering such as quartz sand filter tank, make and still contain Powdered Activated Carbon in the water outlet, become the waste of gac.
200610025171.5 method that adopts activated sludge process to remove sewage ammonia nitrogen, comprise: 1) sewage enters the aeration tank after preliminary sedimentation is removed solid impurity, the active sludge that has domestication in the aeration tank, drop into nitrobacteria culture promoter in the sewage, its component comprises molasses, metal-salt and sorbent material, and sorbent material is one or more mixtures in zeolite powder, diatomite, Powdered Activated Carbon or the flyash; 2) sewage enters the first settling tank and carries out sludge settling; 3) the first settling tank supernatant liquor enters agitated pool, has the active sludge of domestication in the agitated pool; 4) sewage enters the second settling tank and carries out sludge settling, the supernatant liquor discharging.
This invention need to add bacterial classification and culture promoter, and the present invention need not to add nutritive salt, and each several part on stream all has clear and definite effect and effect.
Summary of the invention
The technical problem to be solved in the present invention: in order to overcome existing biological treatment water outlet difficulty up to standard and the higher shortcoming of activated carbon treatment cost, with gac and the better combination of biological treatment, improve existing biological treatment device to the organic processing degree of depth in the sewage, reduce cost for wastewater treatment.
The technical solution used in the present invention:
A kind for the treatment of process of organic waste water comprises following processing step:
(1) waste water is carried out pre-treatment, pre-treatment comprises any one treatment process or a plurality for the treatment of process in adjusting, oil removal, air supporting, flocculation sediment, the neutralization and uses;
(2) anoxic pond (A pond) that enters A/O (anoxic/aerobic) reaction tank through pretreated waste water is carried out mechanical stirring, and hydraulic detention time is 8～20h;
(3) mixed solution after process in the A pond enters A pond settling tank, and hydraulic detention time was greater than 4 hours;
(4) throw out of A pond settling tank bottom is discharged system, and the Aerobic Pond (O pond) that the water outlet of A pond settling tank enters throwing a certain amount of Powdered Activated Carbon carries out bio-aeration to be processed, and hydraulic detention time is 10～20h;
(5) water outlet after the bio-aeration of O pond is processed is advanced O pond settling tank and is carried out mud-water separation, and the supernatant liquor in the settling tank of O pond advances BAF (BAF), and the bottom settlings thing is back to the A pond;
(6) supernatant liquor after aeration and backwash processing, is processed discharge of wastewater up to standard in BAF, and backwash water is returned the A pond.
In the step (1), the main organism COD300～2000mg/L of described pretreated organic waste water, petroleum-type 20～200mg/L, total nitrogen 50～200mg/L, pH are 6～10.
In the step (3), described A pond settling tank bottom settlings thing adopts intermittently spoil disposal or the continuously mode of spoil disposal, the preferred intermittently spoil disposal that adopts; The excess sludge of settling tank bottom, A pond drains into sludge thickener, concentrated laggard sludge dewatering system, wherein any one of plate-and-frame filter press, belt type dewaterer, centrifugal drier, folded spiral shell formula sludge dewatering equipment, recommend adoption plate-and-frame filter press are adopted in sludge dewatering.
The traditional biological aeration mode is adopted in the O pond, control sludge concentration 2～10g/L, dissolved oxygen 0.5～4mg/L; The dosage of the Powdered Activated Carbon that adds in the O pond in addition is 0.02～1 adding by the weight ratio of influent COD and Powdered Activated Carbon, the Powdered Activated Carbon that adds is the Powdered Activated Carbon after the regeneration, fresh Powdered Activated Carbon, or the combination of both any proportionings, still the weight ratio by influent COD and Powdered Activated Carbon is 0.02～1 adding, and insufficient section replenishes new Powdered Activated Carbon.
In the step (4), described O pond settling tank surface load 0.8～1.2m
3/ m
2H, return sludge ratio 50～200%; Wherein, after O pond settling tank bottom settlings thing was back to the A pond, the sewage in entering the A pond carried out mechanical stirring repeating step (1)～(3).
In step (5) and the step (6), described BAF is equipped with fixedly filler of porous, and porous fixedly filler can be selected porous volcanics fixedly filler and haydite etc.; The aeration intensity of BAF is 1～5m
3/ m
2H, water inlet or lower to stream in the employing, wherein flow velocity is 1.0～3.0m/h; BAF backwash condition is that aeration intensity is 20～50m
3/ m
2H, backwash water intensity is 10～30m
3/ m
2H.
It is the A/O reaction tank that sewage after pretreatment advances biological processing unit, processing degree of depth biological processing unit according to organic sewage can adopt one section A/O reaction tank or the A/O reaction tank more than a section, when adopting the A/O reaction tank more than a section, after one section A/O reaction finishes, be after step (1) gets the technical process end to step (5), in subsequent technique, repeat to arrange the A/O conversion zone, repeating step (1) is to the reaction of step (5), until degree of depth biological treatment is complete, carry out again the processing of BAF (BAF).
The invention has the beneficial effects as follows: the present invention changes O pond sludge from sedimentation tank into A pond sludge from sedimentation tank, and with the residual sludge reflux of O pond settling tank to the A pond, process through mechanical stirring with the organic waste water that enters the A pond, take the organic effect of part in the waste water of A pond out of but can utilize like this supersaturation adsorption of the residual active sludge, Powdered Activated Carbon biological activity mud and the gac that are back to the A pond to play; Follow-up BAF can play the effect of holding back Powdered Activated Carbon and suspended substance, and further removes organism and ammonia nitrogen, improves effluent quality.The colourity of its BAF water outlet of organic waste water that process the present invention processes can drop to 10, COD value by 100 and drop to 24 by 85, reaches sewage drainage standard.
Description of drawings
Fig. 1 A/O reaction tank is combined the process flow diagram that carries out treatment of Organic Wastewater with biological aerated filter
1.A pond; 2.A pond settling tank; 3.O pond; 4.O pond settling tank; 5.BAF
Embodiment
Embodiment 1
Certain petrochemical wastewater treatment effect sees Table 1.
Table 1
| Processing unit | COD，mg/L | Petroleum-type, mg/L | Ammonia nitrogen, mg/L |
| Former water | ～1000 | ～100 | ～100 |
| The pre-treatment water outlet | 850 | 15 | 100 |
| The water outlet of A1 pond | 700 | 50 | 90 |
| One section settling tank water outlet | 70 | 8 | 25 |
| The BAF water outlet | ＜60 | ＜5 | ＜15 |
1, waste water at first passes through pre-treatment, and cavitation and air-dissolving air-float oil removing are passed through in tank oil removal in oil trap and the tank again, and oil is lower than below the 20mg/L, and the standard of pretreated waste water sees Table 1.
2, the excess sludge of pretreated waste water and subsequent biological treatment and Powdered Activated Carbon mixed solution advance A pond feed-water end, and hydraulic detention time 10 hours is equipped with in the pond under the liquid and stirs; A pond mixed solution advances A pond settling tank and carries out mud-water separation, the mud intermittently discharged in the settling tank of A pond, and excess sludge and the Powdered Activated Carbon mixed solution of settling tank bottom are intermittently discharged, and remove regeneration system rapidly after concentrated and dehydration.
3, the O pond is entered in the water outlet of A settling tank, and the Powdered Activated Carbon after the regeneration adds to O pond feed-water end, adds charcoal amount 500～700mg/L, sewage under the effect of Powdered Activated Carbon, hydraulic detention time 14 hours, wherein the control sludge concentration in O pond is 2.5～3g/L.
4, the water outlet of O pond is advanced O pond settling tank and is carried out mud-water separation, and supernatant liquor advances BAF.Settling tank bottom active sludge and Powdered Activated Carbon are back to A pond feed-water end, and reflux ratio is about 100%.
5, BAF is equipped with fixedly filler of porous volcanics.Aeration intensity 3m
3/ m
2H, water inlet in the employing, flow velocity is 2.0m/h.BAF backwash condition: air purge intensity is 40m
3/ m
2H; Water backwash intensity is 20m
3/ m
2H, backwash water is returned the A1 pond.
6, waste water COD, ammonia nitrogen, the petroleum-type after BAF processes can respectively less than 60mg/L, 15mg/L and 5mg/L, be accomplished qualified discharge.
Certain wastewater from chemical industry adds charcoal pre-process and post-process effect and sees Table 2.
Table 2
1, waste water is at first through overregulating pre-treatment.
2, the excess sludge of pretreated waste water and subsequent biological treatment and Powdered Activated Carbon mixed solution advance A pond feed-water end, hydraulic detention time average out to 14 hours.A pond mixed solution advances A pond settling tank and carries out mud-water separation, and excess sludge and the Powdered Activated Carbon mixed solution of settling tank bottom are intermittently discharged, and removes regeneration system rapidly after concentrated and dehydration.
3, the O pond is entered in the settling tank water outlet of A pond, and hydraulic detention time is 16 hours, control activated sludge concentration average out to 5g/L.
4, Powdered Activated Carbon and/or the fresh Powdered Activated Carbon after the regeneration adds to O pond feed-water end, adds charcoal amount average out to 800mg/L.
5, the water outlet of O pond is advanced O pond settling tank and is carried out mud-water separation, and supernatant liquor advances BAF.Settling tank bottom active sludge and Powdered Activated Carbon mixed-liquor return are to pond, O pond feed-water end, reflux ratio 50～100%.Excess sludge and Powdered Activated Carbon mixed solution advance A pond feed-water end.
6, BAF is equipped with haydite.Aeration intensity is about 3m
3/ m
2H, water inlet in the employing (lower to stream).Flow velocity is about 1.5m/h.BAF backwash condition: gas backwash intensity is 40m
3/ m
2H; Water backwash intensity is 20m
3/ m
2H, backwash water is returned the A pond.
7, respectively average out to 24mg/L, 3mg/L and 10 times of COD, BOD5 and colourity in the BAF processed waste water.
Claims (10)
1. the treatment process of an organic waste water comprises following processing step:
(1) waste water is carried out pre-treatment, pre-treatment comprises adjusting, oil removal, air supporting, neutralization;
(2) mechanical stirring is carried out in the A pond that enters the A/O reaction tank through pretreated waste water, and hydraulic detention time is 8～20h;
(3) mixed solution after process in the A pond enters A pond settling tank, and hydraulic detention time was greater than 4 hours;
(4) excess sludge of A pond settling tank bottom is discharged system, and the bio-aeration processing is carried out in the O pond that the water outlet of A pond settling tank enters throwing a certain amount of Powdered Activated Carbon, and hydraulic detention time is 10～20h;
(5) water outlet after the bio-aeration of O pond is processed is advanced O pond settling tank and is carried out mud-water separation;
(6) supernatant liquor in the settling tank of O pond advances BAF, and the bottom excess sludge all is back to the A pond;
(7) after aeration and backwash processing, treatment of Organic Wastewater is up to standard in BAF for supernatant liquor, and backwash water is returned the A pond.
2. the treatment process of a kind of organic waste water according to claim 1 is characterized in that the traditional biological aeration mode is adopted in the O pond in the step (3), control sludge concentration 2～10g/L, dissolved oxygen 0.5～4mg/L.
3. the treatment process of a kind of organic waste water according to claim 2 is characterized in that in the Powdered Activated Carbon after the described Powdered Activated Carbon that adds is for regeneration, the new Powdered Activated Carbon any one or two kinds.
4. the treatment process of a kind of organic waste water according to claim 3 is characterized in that new Powdered Activated Carbon is coconut husk, shell, any one or multiple combination in coal-based.
5. the treatment process of a kind of organic waste water according to claim 4 is characterized in that new Powdered Activated Carbon selection coconut husk Powdered Activated Carbon.
6. the treatment process of a kind of organic waste water according to claim 4, the dosage that it is characterized in that Powdered Activated Carbon is 0.02～1 by the weight ratio of influent COD and Powdered Activated Carbon.
7. the treatment process of a kind of organic waste water according to claim 6 is characterized in that O pond settling tank surface load 0.8～1.2m
3/ m
2H, return sludge ratio 50～200%.
8. the treatment process of a kind of organic waste water according to claim 7, its feature is equipped with fixedly filler of porous at described BAF.
9. the treatment process of a kind of organic waste water according to claim 8, its feature is at aeration intensity 1～5m of described BAF
3/ m
2H.
10. the treatment process of a kind of organic waste water according to claim 9, its feature is aeration intensity 20～50m in described BAF backwash condition
3/ m
2H, backwash water intensity is 10～30m
3/ m
2H.
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|---|---|---|---|
| CN2011102574717A CN102964021A (en) | 2011-09-01 | 2011-09-01 | Method for processing organic waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102574717A CN102964021A (en) | 2011-09-01 | 2011-09-01 | Method for processing organic waste water |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591503A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device for treating coking wastewater |
| CN104591502A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device used for sewage in coal chemical industry |
| CN104591500A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device for coking wastewater |
| CN104609671A (en) * | 2015-01-29 | 2015-05-13 | 北京万邦达环保技术股份有限公司 | Multistage reflux powdered activated carbon bioactive sewage treatment device |
| CN104609670A (en) * | 2015-01-29 | 2015-05-13 | 北京万邦达环保技术股份有限公司 | Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device |
| CN104876386A (en) * | 2015-01-29 | 2015-09-02 | 北京万邦达环保技术股份有限公司 | Urban sewage treatment unit |
| CN106542630A (en) * | 2015-09-23 | 2017-03-29 | 中国石油化工股份有限公司 | Reduce mud discharging and recycle the PACT techniques of activated carbon |
| CN110526492A (en) * | 2019-07-19 | 2019-12-03 | 江苏中矩环保科技有限公司 | A kind of multisection type treatment process of antibiotic waste water |
| CN113480109A (en) * | 2021-08-19 | 2021-10-08 | 无锡市远洲环保科技有限公司 | Dephosphorization and denitrification device and method for industrial wastewater recovery treatment |
| CN114409198A (en) * | 2022-01-29 | 2022-04-29 | 东南大学 | Food wastewater treatment method based on modified basalt fiber filler and biological treatment agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01224096A (en) * | 1988-03-04 | 1989-09-07 | Kurita Water Ind Ltd | Treatment of organic waste water |
| CN101302070A (en) * | 2008-04-18 | 2008-11-12 | 汤苏云 | Coked and petrochemical wastewater treatment process having deep biochemical treatment and physicochemical treatment |
| CN101456649A (en) * | 2008-12-30 | 2009-06-17 | 江苏省环境科学研究院 | High efficiency bio-augmentation treatment method for printing and dyeing wastewater |
-
2011
- 2011-09-01 CN CN2011102574717A patent/CN102964021A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01224096A (en) * | 1988-03-04 | 1989-09-07 | Kurita Water Ind Ltd | Treatment of organic waste water |
| CN101302070A (en) * | 2008-04-18 | 2008-11-12 | 汤苏云 | Coked and petrochemical wastewater treatment process having deep biochemical treatment and physicochemical treatment |
| CN101456649A (en) * | 2008-12-30 | 2009-06-17 | 江苏省环境科学研究院 | High efficiency bio-augmentation treatment method for printing and dyeing wastewater |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609670B (en) * | 2015-01-29 | 2017-01-04 | 北京万邦达环保技术股份有限公司 | Improved sewage denitrification and dephosphorization treatment device for powdered activated carbon biological treatment |
| CN104876386B (en) * | 2015-01-29 | 2017-03-22 | 北京万邦达环保技术股份有限公司 | Urban sewage treatment unit |
| CN104591500A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device for coking wastewater |
| CN104609671A (en) * | 2015-01-29 | 2015-05-13 | 北京万邦达环保技术股份有限公司 | Multistage reflux powdered activated carbon bioactive sewage treatment device |
| CN104609670A (en) * | 2015-01-29 | 2015-05-13 | 北京万邦达环保技术股份有限公司 | Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device |
| CN104876386A (en) * | 2015-01-29 | 2015-09-02 | 北京万邦达环保技术股份有限公司 | Urban sewage treatment unit |
| CN104591502A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device used for sewage in coal chemical industry |
| CN104609671B (en) * | 2015-01-29 | 2017-01-11 | 北京万邦达环保技术股份有限公司 | Multistage reflux powdered activated carbon bioactive sewage treatment device |
| CN104591503A (en) * | 2015-01-29 | 2015-05-06 | 北京万邦达环保技术股份有限公司 | Sewage treatment device for treating coking wastewater |
| CN106542630A (en) * | 2015-09-23 | 2017-03-29 | 中国石油化工股份有限公司 | Reduce mud discharging and recycle the PACT techniques of activated carbon |
| CN106542630B (en) * | 2015-09-23 | 2020-05-19 | 中国石油化工股份有限公司 | PACT (Picture archiving and communication technology) process for reducing sludge discharge and recycling activated carbon |
| CN110526492A (en) * | 2019-07-19 | 2019-12-03 | 江苏中矩环保科技有限公司 | A kind of multisection type treatment process of antibiotic waste water |
| CN113480109A (en) * | 2021-08-19 | 2021-10-08 | 无锡市远洲环保科技有限公司 | Dephosphorization and denitrification device and method for industrial wastewater recovery treatment |
| CN113480109B (en) * | 2021-08-19 | 2022-09-13 | 无锡市远洲环保科技有限公司 | Dephosphorization and denitrification device and method for industrial wastewater recovery treatment |
| CN114409198A (en) * | 2022-01-29 | 2022-04-29 | 东南大学 | Food wastewater treatment method based on modified basalt fiber filler and biological treatment agent |
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Application publication date: 20130313 |