CN102491496A - Method for treating sewage by taking bamboo charcoal polyvinyl formal as carrier - Google Patents
Method for treating sewage by taking bamboo charcoal polyvinyl formal as carrier Download PDFInfo
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- CN102491496A CN102491496A CN2011104050769A CN201110405076A CN102491496A CN 102491496 A CN102491496 A CN 102491496A CN 2011104050769 A CN2011104050769 A CN 2011104050769A CN 201110405076 A CN201110405076 A CN 201110405076A CN 102491496 A CN102491496 A CN 102491496A
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Abstract
The invention discloses a method for treating sewage by taking bamboo charcoal polyvinyl formal as a carrier, which is mainly used for solving the problems of sludge expansion and complex treatment process for sludge treatment in the prior art. Precipitation is replaced by a membrane separation technology, and sludge-water separation is performed for treating urban sewage. The method comprises the following steps of: making pretreated sewage flow through a water inlet, and treating through an anaerobic pond, an anoxic pond and an aerobic pond in sequence; feeding into a membrane assembly and draining treated water through a clear water outlet; and adding a bamboo charcoal polyvinyl formal filler into the anoxic pond and the aerobic pond, performing air aeration in the aerobic pond, leading produced sewage through a circulating pump out, making the sewage flow through the membrane assembly, purifying a part of water through the membrane assembly, and reflowing residual water into the aerobic pond. Due to the adoption of the method, indexes such as COD (Chemical Oxygen Demand), BOD (Biological Oxygen Demand), nitrogen, phosphorus and the like in water can be reduced effectively, and the aims of draining in an environmentally-friendly way and recycling are fulfilled. The method has the characteristics of easiness for operating, low sludge yield, compact equipment and low cost, and has an extremely wide application prospect.
Description
Technical field
The present invention relates to a kind of method of disposing of sewage, relating in particular to a kind of is the sewage water treatment method of carrier with the bamboo charcoal PVF, belongs to WWT and reutilization technology field.
Background technology
WWT is the big problem that is related to national economy, and commonly used in the world have biological degradation, barrier film adsorption filtration and an electromagnetization method etc.The current sewage treatment process of China has: AB method, SBR method, oxidation ditch process, common aeration, A/A/O method, A/O method etc.Above-mentioned process method exists the unit and constitutes complicatedly, and the mud that is produced is unstable, needs the sludge disposal facility that it is carried out stabilization treatment, shortcomings such as the many and operating cost height of management link.
Summary of the invention
The objective of the invention is deficiency to above-mentioned prior art; And replace deposition to carry out the mud-water separation Treating Municipal Sewage through a kind of employing membrane separation technique, can solve prior art to the existing sludge bulking of WWT, complex treatment process and the high problem of cost.
The objective of the invention is to realize through following technical proposals: a kind of is the sewage water treatment method of carrier with the bamboo charcoal PVF; This method is that membrane technique is combined with bioremediation;, reagent complicated characteristics high to organic concentration in sewage and the trade effluent; Through in the oxygen-starved area and aerobic zone dose high performance bamboo charcoal/PVF filler (ZL2008 1 0229478.6); Make sewage reach emission standard, and then reach the purpose of environment protection emission and recycle.Adopt high performance bamboo charcoal/PVF to do carrier, bamboo carbon have purify air, the function of water quality.The specific surface of bamboo carbon can be 6 times of general gac up to 700 meters squared per gram, belongs to the scope of high performance active carbon.The PVF material have high-affinity, solid, durable, characteristics, foaming easily such as be easy to synthesize.Adopt the typical technology processing waste water that combines with membrane technique, make it to reach the water quality requirement of reusing sewage.
Comprise anaerobic pond, anoxic pond and three zones of Aerobic Pond among the present invention.Anaerobic pond can play the effect that biology is selected, and can select the cotton-shaped bacterium that is fit to WWT, effectively suppresses the generation of wire bacterium, simultaneously phosphorus is under anaerobic discharged, because the existence of nitric nitrogen also can produce anti-nitration reaction.The oxygen-starved area is the main reaction region of dephosphorization.Aerobic zone is for removing organic main region.New-type bamboo charcoal/PVF filler in oxygen-starved area and aerobic zone interpolation is the organic polymer carrier, has the characteristics of high voidage, high-affinity, can guarantee that bacterium grows in a large number fast surely.Wide aperture and vesicular structure can improve mikrobe and carry intravital breeding level.Have higher intensity, can bear the operation of friction bioenergy in the flow process, it is long to be convenient to cleaning and duration of service.Density approaches water, can in water, suspend, and is easy to use, so its purifying water effect is better.The adding of membrane technique has guaranteed stable effluent quality, simultaneously again for the growth and breeding of nitrifier provides enabling environment, has strengthened the denitrogenation dephosphorizing usefulness and the germicidal action of entire treatment technology.
Concrete grammar is that pretreated sewage is also handled through anaerobic pond (2), anoxic pond (3), Aerobic Pond (4) through water-in (1) successively, gets into membrane module (5) then.Water after handling is discharged by water purification water outlet (6).Add bamboo charcoal PVF filler (7) in anoxic pond (3) and the Aerobic Pond (4), its filler accounts for the 30-95% of device TV.Anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) reflux through recycle pump (8).In Aerobic Pond (4), carry out air aeration, the air water volume ratio is 6: 1-7: 1.Temperature of reaction is 15-35 ℃, and the pH value is 6-9, and hydraulic retention (HRT) is 24-48 hour.The sewage that Aerobic Pond (4) produces is drawn via recycle pump (8), the membrane module of flowing through (5), and portion water is accomplished purification behind membrane module (5), and surplus water is back to Aerobic Pond (4).Above-mentioned membrane module (5) is that hollow-fibre membrane, flat sheet membrane or other commercial membrane assembly all can.
Sewage is continuously through the floating stuffing in the reactor drum and gradually at filler surfaces externally and internally formation microbial film in the bioremediation; Through the microbial process on the microbial film; Sewage is purified, and floating stuffing has aerobic active with anaerobic metabolism, well denitrogenation dephosphorizing.Wherein hollow fiber film structure can be widely used in water treatment, adopts membrane technique can pollutent be separated with water molecules, can precious water resource be carried out second stage employ, and the precious metal ion in the pollutent also can filter simultaneously.Membrane technique is combined with biotechnology and can effectively improve water treatment efficiency, increase water quality.
The present invention through in the oxygen-starved area and aerobic zone dose high performance bamboo charcoal/PVF filler; And membrane technology; Can effectively reduce indexs such as COD in the water, BOD, nitrogen, phosphorus, make sewage reach emission standard, and then reach the purpose of environment protection emission and recycle.
Characteristics of the present invention are: (1) equipment therefor floor space is little, investment and working cost are low, is beneficial to school, institutes and medium-sized and small enterprises and saves the area, effectively raising the land utilization efficiency; (2) but technical process is simple, treatment effect is stablized, be convenient to safeguard that periodical operation, water treatment amount can grasp flexibly; (3) adding of high-performance filler and membrane technique has strengthened anti impulsion load and denitrogenation dephosphorizing ability, has effectively reduced the discharging of mud.Therefore; This method has the effluent quality excellence, operation operation is simple, sludge yield is low, floor space is little, facility compact, the incomparable advantage of many common process such as flexible; The effect of in the waste water treating and reutilizing field, playing is increasing, has quite wide application prospect.
Description of drawings
Fig. 1 is the structural representation of equipment therefor of the present invention.
Embodiment
Embodiment 1:
With reference to Fig. 1, get the water sample that COD is 1200mg/l, pretreated sewage is handled through anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 through water-in 1 successively, get into membrane module 5 then, water is after treatment discharged by water purification water outlet 6.Add bamboo charcoal PVF filler in anoxic pond 3 and the Aerobic Pond 4, filler accounts for 80% of device TV.Anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 reflux through recycle pump 8.In Aerobic Pond 4, carry out air aeration, the air water volume ratio is 6: 1, and temperature of reaction is 30 ℃, and the pH value is 8, and hydraulic retention (HRT) is 24 hours.The sewage that Aerobic Pond 4 produces is drawn via recycle pump 8, the membrane module 5 of flowing through, and portion water is accomplished purification behind membrane module 5, and surplus water is back to Aerobic Pond 4.Through detecting, water outlet COD is 10mg/l.Above-mentioned membrane module 5 adopts hollow-fibre membrane.
Embodiment 2:
With reference to Fig. 1, get the water sample that COD is 1300mg/l, pretreated sewage is handled through anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 through water-in 1 successively, get into membrane module 5 then, water is after treatment discharged by water purification water outlet 6.Add bamboo charcoal PVF filler 7 in anoxic pond 3 and the Aerobic Pond 4, filler 7 accounts for 85% of device TV.Anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 reflux through recycle pump 8, in Aerobic Pond 4, carry out air aeration, and the air water volume ratio is 7: 1.Temperature of reaction is 35 ℃, and the pH value is 7.5, and hydraulic retention (HRT) is 48 hours.The sewage that Aerobic Pond 4 produces is drawn via recycle pump, the membrane module of flowing through, and portion water is accomplished purification behind membrane module, and surplus water is back to Aerobic Pond.Through detecting, water outlet COD is 6mg/l.Above-mentioned membrane module 5 adopts flat sheet membrane.
Embodiment 3:
With reference to Fig. 1, get the water sample that COD is 1400mg/l, pretreated sewage is handled through anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 through water-in 1 successively, get into membrane module 5 then, water is after treatment discharged by water purification water outlet 6.Add bamboo charcoal PVF filler 7 in anoxic pond 3 and the Aerobic Pond 4, filler 7 accounts for 90% of device TV.Anaerobic pond 2, anoxic pond 3 and Aerobic Pond 4 reflux through recycle pump 8, in Aerobic Pond 4, carry out air aeration, and the air water volume ratio is 6: 1, and temperature of reaction is 25 ℃, and the pH value is 8, and hydraulic retention (HRT) is 24 hours.The sewage that Aerobic Pond 4 produces is drawn via recycle pump 8, the membrane module 5 of flowing through, and portion water is accomplished purification behind membrane module 5, and surplus water is back to Aerobic Pond 4.Through detecting, water outlet COD is 8mg/l.Above-mentioned membrane module 5 adopts hollow-fibre membrane.
Claims (5)
1. one kind is the sewage water treatment method of carrier with the bamboo charcoal PVF, and this method is that membrane technique is combined with bioremediation,, reagent complicated characteristics high to organic concentration in sewage and the trade effluent; Through in the oxygen-starved area and aerobic zone dose high performance bamboo charcoal/PVF filler, make sewage reach the purpose of emission standard and recycle, comprise anaerobic pond, anoxic pond and three zones of Aerobic Pond in present method; Concrete grammar is that pretreated sewage is also handled through anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) through water-in (1) successively, gets into membrane module (5) then, and water is after treatment discharged by water purification water outlet (6); Add bamboo charcoal PVF filler (7) in anoxic pond (3) and the Aerobic Pond (4); Filler (7) accounts for the 30-95% of device TV, and anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) reflux through recycle pump (8), in Aerobic Pond (4), carry out air aeration; The air water volume ratio is 6: 1-7: 1; Temperature of reaction is 15-35 ℃, and the pH value is 6-9, and hydraulic retention is 24-48 hour; The sewage that Aerobic Pond (4) produces is drawn via recycle pump (8); The membrane module (5) of flowing through, portion water is accomplished purification behind membrane module (5), and surplus water is back to Aerobic Pond (4).
2. as claimed in claim 1 is the sewage water treatment method of carrier with the bamboo charcoal PVF, and membrane module (5) related in this method is hollow-fibre membrane or flat sheet membrane.
3. as claimed in claim 1 is the sewage water treatment method of carrier with the bamboo charcoal PVF, and its concrete practice is: get the water sample that COD is 1200mg/l, pretreated sewage is handled through anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) through water-in (1) successively; Get into membrane module (5) then, the water after handling is discharged by water purification water outlet (6), adds bamboo charcoal PVF filler (7) in anoxic pond (3) and the Aerobic Pond (4); Filler (7) accounts for 80% of device TV, and anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) reflux through recycle pump (8), in Aerobic Pond (4), carry out air aeration; The air water volume ratio is 6: 1, and temperature of reaction is 30 ℃, and the pH value is 8; Hydraulic retention is 24 hours, and the sewage that Aerobic Pond (4) produces is drawn the membrane module of flowing through (5) via recycle pump (8); Portion water is accomplished purification behind membrane module (5), surplus water is back to Aerobic Pond (4), through detecting; Water outlet COD is 10mg/l, and above-mentioned membrane module (5) adopts hollow-fibre membrane.
4. as claimed in claim 1 is the sewage water treatment method of carrier with the bamboo charcoal PVF, and its concrete practice is: get the water sample that COD is 1300mg/l, pretreated sewage is handled through anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) through water-in (1) successively; Get into membrane module (5) then, the water after handling is discharged by water purification water outlet (6), adds bamboo charcoal PVF filler (7) in anoxic pond (3) and the Aerobic Pond (4); Filler (7) accounts for 85% of device TV, and anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) reflux through recycle pump (8), in Aerobic Pond (4), carry out air aeration; The air water volume ratio is 7: 1, and temperature of reaction is 35 ℃, and the pH value is 7.5; Hydraulic retention is 48 hours, and the sewage that Aerobic Pond (4) produces is drawn the membrane module of flowing through (5) via recycle pump (8); Portion water is accomplished purification behind membrane module (5), surplus water is back to Aerobic Pond (4), through detecting; Water outlet COD is 6mg/l, and above-mentioned membrane module (5) adopts flat sheet membrane.
5. as claimed in claim 1 is the sewage water treatment method of carrier with the bamboo charcoal PVF, and its concrete practice is: get the water sample that COD is 1400mg/l, pretreated sewage is handled through anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) through water-in (1) successively; Get into membrane module (5) then, the water after handling is discharged by water purification water outlet (6), adds bamboo charcoal PVF filler (7) in anoxic pond (3) and the Aerobic Pond (4); Filler (7) accounts for 90% of device TV, and anaerobic pond (2), anoxic pond (3) and Aerobic Pond (4) reflux through recycle pump (8), in Aerobic Pond (4), carry out air aeration; The air water volume ratio is 6: 1, and temperature of reaction is 25 ℃, and the pH value is 8; Hydraulic retention is 24 hours, and the sewage that Aerobic Pond (4) produces is drawn the membrane module of flowing through (5) via recycle pump (8); Portion water is accomplished purification behind membrane module (5), surplus water is back to Aerobic Pond (4), through detecting; Water outlet COD is 8mg/l, and above-mentioned membrane module 5 adopts hollow-fibre membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104050769A CN102491496A (en) | 2011-12-07 | 2011-12-07 | Method for treating sewage by taking bamboo charcoal polyvinyl formal as carrier |
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| CN2011104050769A CN102491496A (en) | 2011-12-07 | 2011-12-07 | Method for treating sewage by taking bamboo charcoal polyvinyl formal as carrier |
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| CN102491496A true CN102491496A (en) | 2012-06-13 |
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| CN2011104050769A Pending CN102491496A (en) | 2011-12-07 | 2011-12-07 | Method for treating sewage by taking bamboo charcoal polyvinyl formal as carrier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358394A (en) * | 2018-03-23 | 2018-08-03 | 中国十七冶集团有限公司 | A kind of Novel dephosphorization sewage treatment process |
| CN109734180A (en) * | 2019-01-22 | 2019-05-10 | 浙江工业大学 | Porous compounded mix of charcoal/polyvinyl formal and the preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11156387A (en) * | 1997-11-21 | 1999-06-15 | Nishihara Environ Sanit Res Corp | Wastewater treatment apparatus |
| KR100446142B1 (en) * | 2004-06-07 | 2004-08-25 | (주)대성그린테크 | Organic waste water treatment system by means of ds-bb support |
| CN101428901A (en) * | 2008-12-09 | 2009-05-13 | 沈阳师范大学 | Bamboo charcoal-polyvinyl formal biological carrier and preparation thereof |
| CN101475287A (en) * | 2009-01-06 | 2009-07-08 | 环境保护部华南环境科学研究所 | Novel membrane-biological membrane reactor system and use thereof |
-
2011
- 2011-12-07 CN CN2011104050769A patent/CN102491496A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11156387A (en) * | 1997-11-21 | 1999-06-15 | Nishihara Environ Sanit Res Corp | Wastewater treatment apparatus |
| KR100446142B1 (en) * | 2004-06-07 | 2004-08-25 | (주)대성그린테크 | Organic waste water treatment system by means of ds-bb support |
| CN101428901A (en) * | 2008-12-09 | 2009-05-13 | 沈阳师范大学 | Bamboo charcoal-polyvinyl formal biological carrier and preparation thereof |
| CN101475287A (en) * | 2009-01-06 | 2009-07-08 | 环境保护部华南环境科学研究所 | Novel membrane-biological membrane reactor system and use thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李国德等: "竹炭/聚乙烯醇缩甲醛复合材料的制备", 《矿冶》, vol. 18, no. 2, 30 June 2009 (2009-06-30) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358394A (en) * | 2018-03-23 | 2018-08-03 | 中国十七冶集团有限公司 | A kind of Novel dephosphorization sewage treatment process |
| CN109734180A (en) * | 2019-01-22 | 2019-05-10 | 浙江工业大学 | Porous compounded mix of charcoal/polyvinyl formal and the preparation method and application thereof |
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Application publication date: 20120613 |