CN103214106A - Method for biologically degrading organic wastewater by utilizing microbe - Google Patents
Method for biologically degrading organic wastewater by utilizing microbe Download PDFInfo
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- CN103214106A CN103214106A CN2013101906199A CN201310190619A CN103214106A CN 103214106 A CN103214106 A CN 103214106A CN 2013101906199 A CN2013101906199 A CN 2013101906199A CN 201310190619 A CN201310190619 A CN 201310190619A CN 103214106 A CN103214106 A CN 103214106A
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Abstract
The invention provides a method for biologically degrading organic wastewater by utilizing microbe. The method is as follows: 1) reed is used as a filler and biological carrier; and 2) the organic wastewater is treated by using a biological fluidized bed or fixed bed. The method has the following advantages that 1) the biomass reed is used as the filler without secondary pollution, simultaneously the specific gravity of the reed is close to that of the water, the fluidization power consumption is less, the intensity is high, the start is easy, and the loading biomass is relatively large; 2) an organic matter released by the reed is used as the solid carbon source for nitrogen removal of denitrification, especially the removal effect is the total nitrogen in the wastewater is good; 3) the process of the method is simple, and the floor space is small, thus the method is an efficient, low-cost composite process treatment method; 4) the organic matter, ammonia nitrogen, total phosphorus, total nitrogen in wastewater are simultaneously removed; 5) the water quality of the effluent water is stable and can meet the first grade national discharges standard, with a wide range of applications. The method can be applied to wastewater treatment, especially small sewage treatment, and can produce good social, environmental benefits.
Description
Technical field
What the present invention relates to is a kind of method of utilizing the biological degradation organic waste water of microorganism.
Background technology
Along with the process and the rapid expansion of population of modernization industry, water pollution problems has become one of social focus.And China is populous, water resources shortage per capita, and especially along with society and expanding economy, the quantity discharged of trade effluent and sanitary sewage is increasing, and water pollution problems becomes increasingly conspicuous, and has aggravated the present situation of China's shortage of water resources especially.The water crisis that shortage of water resources and water environment pollution cause even become the important factor that influences the Chinese society Economic development.Biomembrance process is to utilize attached to the microorganism on the filler a kind of processing method that water body purifies, and is also developed rapidly in recent years and improves.Put into practice from operation for many years, though it is activated sludge process is comparatively ripe, has a lot of shortcoming and defect, big as the aeration tank volume, floor space is high, capital cost is high, the adaptability that water quality, the water yield are changed is lower simultaneously, and operating performance is subject to the influence of water quality, water yield variation etc.In view of above-mentioned factor, this sewage water treatment method is replaced by afterwards biomembrance process gradually.Biomembrane process is a kind of efficient, economic sewage disposal technology, has obtained abroad using widely, but also mainly has been parked in laboratory study stage and pilot scale research stage in China, needs the relevant technological design data and the experience of operational management.
In recent years, because human daily routines, body eutrophication and water resources problems are serious day by day.Many sewage must could discharge and reuse through denitrogenation dephosphorizing.Utilize in the higher municipal effluent process of biological denitrification art breading nitrogen, phosphorus content, adding carbon source is one of means that guarantee treatment effect.For carbon content relative deficiency water body, traditional method is to add liquid carbon source such as methyl alcohol, and the drawback of this technology mainly is transportation inconvenience, cost is too high and the liquid carbon source has problems such as certain toxicity.Many scholars are devoted to study the denitrifying carbon source that substitutes traditional technology, and as farm crop, agricultural waste, mud etc., these novel carbon sources have certain advantage at aspects such as security and economy.
At present, China is less as the research of solid denitrifying carbon source about agricultural wastes.There has been correlative study to study as denitrifying carbon source at cotton, wheat straw etc.Cotton, stalk more easily obtain and are cheap harmless to nature, and obtain certain effect in the denitrification denitrogenation experiment.
Summary of the invention
The object of the invention is to provide a kind of method of utilizing the biological degradation organic waste water of microorganism,
Technical solution of the present invention: utilize the method for the biological degradation organic waste water of microorganism, comprise following technology:
1) utilize dry reed as filler and bio-carrier,
2) biological fluidized bed or fixed bed carry out treatment of Organic Wastewater;
Described dry reed is the reed after the picking maturity, and reed is an open column shape, and intercepting into length by specification is 1cm-3cm; Be put in the clear water and soak;
Described biological fluidized bed or fixed bed carry out treatment of Organic Wastewater, comprise
1) reed of soaking is placed in fluidized-bed or the fixed-bed reactor as biologic packing material;
2) feeding pH is the organic waste water of 6-9, gives suitable aeration (air water weight ratio 4:1-20:1), continuous water intake mode biofilm, and biological charge capacity reaches 9-45g/L on the filler, looks the biofilm success;
3) organic waste water of Jia Ruing, fluidized-bed filler filling ratio is 20-50%, and fixed bed filler filling ratio 100% carries out aeration biochemical and handles, and the COD volumetric loading is 0.6-2.7kgCOD/ (m
3D), hydraulic detention time is 1-6h;
4) as handling, can directly adopt fixed-bed process, not carry out aeration, utilize the carbon source in the reed to carry out denitrogenation as denitrification denitrogenation.
Advantage of the present invention: utilize the biomass reed as filler, can not produce secondary pollution, the proportion of reed own approaches water simultaneously, and the fluidisation power consumption is few, and intensity is big, is easy to biofilm and starts, and the load biomass is bigger.In addition, the solid carbon source, the especially removal to total nitrogen in the waste water that can be used as denitrification denitrogenation of the organism that discharges of reed biologic packing material has effect preferably.Can remove organism in the waste water, ammonia nitrogen, total phosphorus, total nitrogen simultaneously, stable effluent quality all can reach country-level emission standards, applied range.Technology of the present invention is simple, and floor space is little, is a kind of novel, recombining process treatment process efficiently.This technology is generalized in the sewage disposal, during especially small-scale sewage is handled, will produces good social benefit and environmental benefit.Water conditioning after this art breading reaches national grade one discharge standard.Sewage through the open column shape reed floating stuffing in fluidized-bed or the static bed biomembrane reactor and gradually at reed internal surface formation microbial film, by the microbial process on the microbial film, is purified sewage continuously.
Embodiment
Embodiment 1
1) specification of the ripening stage reed of plucking press 1-3cm intercepts.Get an amount of reed and in clear water, soak, treat the biofilm use;
2) reed of soaking is placed in fluidized-bed or the fixed-bed reactor as biologic packing material, feeding pH is the sanitary sewage of 6-9, gives suitable aeration, water intake mode biofilm continuously, and biological charge capacity reaches 9-45g/L on the filler, looks the biofilm success;
3) biological fluidized bed or fixed bed carry out sewage disposal, the sanitary wastewater of feeding, and fluidized-bed filler filling ratio is 20% or 30%, and fixed bed filler filling ratio 100% carries out aeration biochemical and handles, and the COD volumetric loading is 0.6kgCOD/ (m
3D) or 1.2kgCOD/ (m
3D), hydraulic detention time is 2h or 4h;
4) utilize this fluidized-bed sewage treatment process to handle sanitary sewage.Water inlet COD concentration is 83.37-292.16mg/L, effluent COD concentration 36.50-60mg/L; Total N concentration 10.12-18.61mg/L of intaking, the total N concentration of water outlet 3.03-5.86mg/L; Water inlet NH
3-N concentration is 4.03-8.27mg/L, water outlet NH
3-N concentration is 0.67-2.01mg/L; Water inlet TP concentration is 0.77-1.25mg/L, and water outlet TP concentration is 0.33-0.50mg/L.
Utilize this fixed bed sewage treatment process to handle sanitary sewage.Water inlet COD concentration is 83.37-292.16mg/L, effluent COD concentration 40.50-55mg/L; Total N concentration 10.12-18.61mg/L of intaking, the total N concentration of water outlet 4.74-6.47mg/L; Water inlet NH
3-N concentration is 4.03-8.27mg/L, water outlet NH
3-N concentration is 1.09-3.15mg/L; Water inlet TP concentration is 0.77-1.25mg/L, and water outlet TP concentration is 0.47-0.60mg/L.
Embodiment 2
1) other conditions are constant, change among the embodiment 1 3) in fluidized-bed filler filling ratio be 30% or fixed bed filler filling ratio 100%.Carry out aeration biochemical and handle, the COD volumetric loading is 1.2kgCOD/ (m
3D), hydraulic detention time is 4h;
2) utilize this fluidized-bed sewage treatment process to handle sanitary sewage.Water inlet COD concentration is 167.66-385.16mg/L, effluent COD concentration 42.00-60.00mg/L; Total N concentration 17.31-39.34mg/L of intaking, the total N concentration of water outlet 3.65-8.01mg/L; Water inlet NH
3-N concentration is 8.48-12.63mg/L, water outlet NH
3-N concentration is 1.27-3.15mg/L; Water inlet TP concentration is 0.77-1.25mg/L, and water outlet TP concentration is 0.36-0.58mg/L.
Utilize this fluidized-bed sewage treatment process to handle city domestic sewage.Water inlet COD concentration is 167.66-385.16mg/L, effluent COD concentration 38-60.00mg/L; Total N concentration 17.31-39.34mg/L of intaking, the total N concentration of water outlet 4.05-9.471mg/L; Water inlet NH
3-N concentration is 8.48-12.63mg/L, water outlet NH
3-N concentration is 1.84-4.29mg/L; Water inlet TP concentration is 0.77-1.25mg/L, and water outlet TP concentration is 0.56-0.98mg/L.
It is big that the present invention relies on biofilm reactor to have an anti-shock loading, high-level efficiency, the advantage of good stability.The reed in picking maturity is placed on seasoning in the air, intercepts into the open column shape of 1-3cm by certain specification, does fluidized-bed or fixed-bed bioreactor filler.Can remove organism, ammonia nitrogen, total phosphorus, total nitrogen in the waste water effectively, solve that conventional filler easily produces secondary pollution, bottleneck problem such as cost an arm and a leg.In addition, big, the proportion of the specific surface area of reed filler approaches water.When the application of biological fluidized bed, it is little to have energy consumption, easily the fluidizing advantage.The biomass that the reed filling surface adheres to is big, contacts more fully with organism in the sewage, and removal effect is better.
Simultaneously,, contain abundant carbon atom, meet the requirement of microorganism, when serving as carbon source, can be used as the growing carrier of denitrifying bacterium carbon source because reed is the natural fiber cellulosic material.For the growth and breeding of denitrifying bacteria has been created favourable condition, can effectively solve NO in the water
3 --N pollution problem has effect preferably to the removal of N always in the waste water.
Adopt fluidized-bed or static bed biomembrane reactor aerobe to handle, can reduce occupation of land, the civil engineering costs of building sewage work, this technology is easy, and it is of fine quality to purify waste water.This technology relies on the reed carrier to be filled in the bed, makes it the surface coverage microbial film.Technology of the present invention can be removed organism in the waste water, ammonia nitrogen, total phosphorus, total nitrogen simultaneously, and stable effluent quality all can reach country-level emission standards.In addition, reed biomass filler is as the carbon source of denitrification denitrogenation reaction, and it discharges certain carbon atoms material, especially removal to total nitrogen in the waste water certain effect.
Claims (3)
1. method of utilizing the biological degradation organic waste water of microorganism is characterized in that this method comprises following technology:
1) utilize dry reed as filler and bio-carrier,
2) biological fluidized bed or fixed bed carry out treatment of Organic Wastewater.
2. a kind of method of utilizing the biological degradation organic waste water of microorganism according to claim 1 is characterized in that described dry reed is the reed after the picking maturity, and reed is an open column shape, and intercepting into length by specification is 1cm-3cm; Be put in the clear water and soak.
3. a kind of method of utilizing the biological degradation organic waste water of microorganism according to claim 1 is characterized in that described biological fluidized bed or fixed bed carry out treatment of Organic Wastewater, comprise
1) reed of soaking is placed in fluidized-bed or the fixed-bed reactor as biologic packing material;
2) feeding pH is the organic waste water of 6-9, gives aeration, and the part by weight of air water is 4-20:1, continuous water intake mode biofilm, and biological charge capacity reaches 9-45g/L on the filler, looks the biofilm success;
3) organic waste water of Jia Ruing, fluidized-bed filler filling ratio is 20-50%, and fixed bed filler filling ratio 100% carries out aeration biochemical and handles, and the COD volumetric loading is 0.6-2.7kgCOD/ (m
3D), hydraulic detention time is 1-6h;
4) if handle, then directly adopt fixed-bed process, do not carry out aeration, utilize the carbon source in the reed to carry out denitrogenation as denitrification denitrogenation.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556349A (en) * | 2014-12-11 | 2015-04-29 | 浙江海洋学院 | Raw water biological pretreatment process with exogenous plant nutrition enrichment function |
| CN104787882A (en) * | 2015-04-21 | 2015-07-22 | 南京林业大学 | Method for deep denitriding of waste water in low carbon nitrogen ratio through denitrification |
| CN106976968A (en) * | 2017-04-24 | 2017-07-25 | 浙江海洋大学 | A kind of simultaneous denitrification is except the solid phase denitrification coupling carrier of carbon |
| CN107935210A (en) * | 2017-11-24 | 2018-04-20 | 河海大学 | Based on reed straw biomembrane from aerator and application |
| CN109231432A (en) * | 2018-09-19 | 2019-01-18 | 南京胜仁市政建设有限公司 | Sewage treatment film bed |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498989A (en) * | 2020-04-16 | 2020-08-07 | 南开大学 | Preparation method of facultative anaerobe filler for in-situ purification of domestic sewage |
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2013
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556349A (en) * | 2014-12-11 | 2015-04-29 | 浙江海洋学院 | Raw water biological pretreatment process with exogenous plant nutrition enrichment function |
| CN104787882A (en) * | 2015-04-21 | 2015-07-22 | 南京林业大学 | Method for deep denitriding of waste water in low carbon nitrogen ratio through denitrification |
| CN104787882B (en) * | 2015-04-21 | 2017-03-15 | 南京林业大学 | A kind of method of low carbon-nitrogen ratio sewage denitrification advanced nitrogen |
| CN106976968A (en) * | 2017-04-24 | 2017-07-25 | 浙江海洋大学 | A kind of simultaneous denitrification is except the solid phase denitrification coupling carrier of carbon |
| CN107935210A (en) * | 2017-11-24 | 2018-04-20 | 河海大学 | Based on reed straw biomembrane from aerator and application |
| CN107935210B (en) * | 2017-11-24 | 2020-11-10 | 河海大学 | Self-aeration device based on reed straw biological membrane and application |
| CN109231432A (en) * | 2018-09-19 | 2019-01-18 | 南京胜仁市政建设有限公司 | Sewage treatment film bed |
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| CN103214106B (en) | 2014-03-26 |
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Application publication date: 20130724 Assignee: MA'ANSHAN SANTA ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Assignor: Nanjing Forestry University Contract record no.: 2018320000390 Denomination of invention: Method for biologically degrading organic wastewater by utilizing microbe Granted publication date: 20140326 License type: Common License Record date: 20181214 Application publication date: 20130724 Assignee: SHANGHAI RESUN ENVIRONMENTAL TECHNOLOGY CO.,LTD. Assignor: Nanjing Forestry University Contract record no.: 2018320000391 Denomination of invention: Method for biologically degrading organic wastewater by utilizing microbe Granted publication date: 20140326 License type: Common License Record date: 20181214 |
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Application publication date: 20130724 Assignee: Nanjing Yonghe Environmental Protection Engineering Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000159 Denomination of invention: Method for biologically degrading organic wastewater by utilizing microbe Granted publication date: 20140326 License type: Common License Record date: 20191023 |
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