CN105541003A - Method for treating aquaculture wastewater - Google Patents

Method for treating aquaculture wastewater Download PDF

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Publication number
CN105541003A
CN105541003A CN201510952263.7A CN201510952263A CN105541003A CN 105541003 A CN105541003 A CN 105541003A CN 201510952263 A CN201510952263 A CN 201510952263A CN 105541003 A CN105541003 A CN 105541003A
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CN
China
Prior art keywords
treatment
stage
wastewater purification
grid
pond
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510952263.7A
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Chinese (zh)
Inventor
葛茂旭
宋琪
王兆丰
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Qingdao Qingke Environmental Protection Technology Co Ltd
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Qingdao Qingke Environmental Protection Technology Co Ltd
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Priority to CN201510952263.7A priority Critical patent/CN105541003A/en
Publication of CN105541003A publication Critical patent/CN105541003A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The present invention provides a method for treating aquaculture wastewater. The method includes stages, pretreatment, biological treatment and advanced treatment. The pretreatment stage comprises grating slag removal, primary sedimentation adjustment and flocculation sedimentation. The biological treatment stage includes anaerobic treatment, multi-stage biological contact oxidation process. The advanced treatment stage includes decolorization treatment and membrane bioreactor treatment. The method for treating aquaculture wastewater has the advantages of low comprehensive energy consumption, strong impact resistance system, small land occupation and good treatment effect.

Description

A kind of cultivating wastewater purification method
Technical field
The present invention relates to field of waste water treatment, particularly a kind of cultivating wastewater purification method.
Background technology
Aquaculture is the important industry of China's rural development.In the last few years, along with the continuous expansion of cultivation scale, the sharply increase of raising quantity, a large amount of swine manure wastewaters is made to become source of pollution, the pollution that these plants produce is as can not get timely process, high risks will be caused to environment, cause the deterioration of the ecological environment, animal products quality declines and jeopardize HUMAN HEALTH, the delayed of aquaculture pollutant abatement technology will seriously restrict the Sustainable development of aquaculture.
At present, comprehensive utilization and the large class of process qualified discharge two are mainly contained to the treatment process of mass-producing livestock and poultry farm liquid dung both at home and abroad.
Comprehensive utilization is the good approach that biomass energy utilized, and built the ecological agriculture and ensured agricultural sustainable development at many levels.But, raise administration way due to China's livestock and poultry farm at present to fall behind, add the not in place of the front anaerobic treatment of comprehensive utilization, often make livestock and poultry liquid dung produce a lot of problem in the process of comprehensive utilization, as large in waste water generation, complicated component, process after stain substrate concentration still very high, the used dilution water yield are many and affect by watering season.
For process qualified discharge, no doubt technical process used is both at home and abroad roughly the same, i.e. solid-liquid separation-anaerobic digestion-aerobic treatment, but, the cultivation industry that meagre profit manages is in for China, builds that such investment needed for treatment for cow manure facility is too large, working cost is too high.
Summary of the invention
In order to overcome the deficiency of existing disposal options, the present invention is from Optimization Technology combination, reduction comprehensive energy consumption, raising system impact resistance, and start with in reduction occupation of land aspect, innovation proposes a kind of cultivating wastewater purification method.
Technical scheme of the present invention is achieved in that
A kind of cultivating wastewater purification method, comprising: pre-treatment, biochemical treatment and advanced treatment three phases;
Pretreatment stage: comprise grid slagging-off, regulate just heavy and flocculation sediment;
The biochemical treatment stage: comprise anaerobic treatment, the process of multi-stage biological catalytic oxidation;
The advanced treatment stage: comprise desolventing technology and Membrane Bioreactor for Wastewater Treatment.
Alternatively, described grid slagging-off operation is: sewage, through grid, tackles thick suspended substance by grid.
Alternatively, described adjustment just heavy operation is: after grid slagging-off, sewage enters adjustment preliminary sedimentation tank, stablizes sewage quality, the water yield, and larger particles impurity is tentatively precipitated.
Alternatively, described flocculation sediment operation is: sewage enters flocculation sedimentation tank, adds polymerize aluminum chloride and polyacrylamide stirring reaction successively, makes most suspended substances precipitation removing in waste water.
Alternatively, described anaerobic treatment operation is: flocculation sedimentation tank water outlet enters anaerobic pond, utilizes the effect of high density anerobe, organism is hydrolyzed, acidifying and methanation, removes the organism in waste water.
Alternatively, described multi-stage biological catalytic oxidation treatment process is: sewage enters at least two-stage biological contact-oxidation pool by anaerobic pond, arranges combined stuffing, and arrange micro-hole aerator in pond in Aerobic Pond, with to oxygenic aeration in pond.
Alternatively, described desolventing technology operation is: by adding breeding wastewater discoloring agent, realizes removing the organism that develops the color in waste water, reduces COD simultaneously.
Alternatively, described Membrane Bioreactor for Wastewater Treatment operation is: remove suspended solid and rest COD in water by membrane bioreactor.
The invention has the beneficial effects as follows:
(1) the pollutant load amount of liquid portion can be made greatly to reduce by solid-liquid separation, increase anaerobic digestion maintainability, reduce the size of anaerobic reactor and the required residence time, reduce facility investment and improve the past except efficiency of COD (ChemicalOxygenDemand, chemical oxygen demand (COD));
(2) anaerobic digestion process can effectively toward removing a large amount of dissolved organic matters under lower operation composition, and COD reaches 85% ~ 90% toward except rate.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schema of a kind of cultivating wastewater purification method of the present invention;
Fig. 2 is the schema of pretreatment stage;
The schema treatment stage that Fig. 3 being biochemistry;
Fig. 4 is the schema in advanced treatment stage.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the present invention proposes a kind of cultivating wastewater purification method, comprising: pre-treatment, biochemical treatment and advanced treatment three phases.
As shown in Figure 2, pretreatment stage: comprise grid slagging-off, regulate just heavy and flocculation sediment three process.
Grid removes the gred: sewage, through grid, tackles thick suspended substance by grid.
It is just heavy to regulate: after grid slagging-off, sewage enters adjustment preliminary sedimentation tank, stablizes sewage quality, the water yield, and larger particles impurity is tentatively precipitated.
Flocculation sediment: sewage enters flocculation sedimentation tank, adds polymerize aluminum chloride (PAC) and polyacrylamide (PAM) stirring reaction successively, makes most suspended substances precipitation removing in waste water.
As shown in Figure 3, the biochemical treatment stage: comprise anaerobic treatment, the process of multi-stage biological catalytic oxidation.
Anaerobic treatment: flocculation sedimentation tank water outlet enters anaerobic pond, utilizes the effect of high density anerobe, organism is hydrolyzed, acidifying and methanation, removes the organism in waste water, and improves the biodegradability of sewage, be conducive to follow-up aerobic treatment.
Multi-stage biological catalytic oxidation process: after this, sewage enters at least two-stage biological contact-oxidation pool by anaerobic pond, in pond, combined stuffing is set, and micro-hole aerator is arranged in Aerobic Pond, with to oxygenic aeration in pond, for good envrionment conditions is created in the various aerobic biochemical reactions of microorganism on microbial film, ensure BOD 5, NH 3the degraded of-N.
As shown in Figure 4, the advanced treatment stage: comprise desolventing technology and Membrane Bioreactor for Wastewater Treatment.
Desolventing technology: by adding breeding wastewater discoloring agent, realizes effectively removing the colour developing organism compared with bio-refractory in waste water, significantly can reduce COD (ChemicalOxygenDemand, chemical oxygen demand (COD)) simultaneously.
Membrane Bioreactor for Wastewater Treatment: remove suspended solid and rest COD (ChemicalOxygenDemand in water further by membrane bioreactor, chemical oxygen demand (COD)), removal efficiency can reach 100%, can reach more than 99.99% to the clearance of microorganism, bacterium, intestinal bacteria, pathogenic agent.
Arrangement combinations filler in contact-oxidation pool, has the advantage of soft-filler and semi soft packing concurrently, makes keep very high biomass in reactor, and volumetric loading is high, and the residence time is short, and floor space is little.
The glued membrane micro porous aeration head that aerating system adopts current international water treatment more advanced, this device there will not be latch up phenomenon in operational process, has aeration pore little, and the utilization ratio advantages of higher of oxygen, drastically increases treatment effect and reduce energy consumption.
And urochromogen, urobilinogen are exist with colourless chromogen in fresh fecaluria, but because of light or effect that is hot or oxidation when placing in atmosphere, just be transformed into yellow urochrome, stercobilin gradually, cause after general treatment scheme, last water outlet presents deep yellow, Vandyke brown.Given this, the present invention adds breeding wastewater discoloring agent after catalytic oxidation, removes to make waste water finally aobvious dark and compared with the organic pigment of difficult for biological degradation, to go its colourity.
Waste water through desolventing technology enters Membrane Bioreactor for Wastewater Treatment again, utilize the further organics removal of high-concentration activated sludge in membrane cisterna, ammonia nitrogen etc., the superelevation filtering accuracy of microfiltration membrane also makes the indexs such as the concentration of suspension of final outflow water, microorganism, bacterium, intestinal bacteria, pathogenic agent reach higher standard, thus provides new selection for the process of breeding wastewater of high organic concentration, high suspended matter concentration, high chroma, high nitrogen phosphorus, high harmful microorganism quantity.
The present invention, when giving full play to biological process advantage, is aided with physics, chemical process, makes cultivating wastewater purification method at degrading high concentration organic pollutant, reduces high suspended matter concentration, high chroma, high harmful microorganism quantitative aspects Be very effective.
Simultaneously, in the present invention, the application of flocculation sediment makes most suspended substances in waste water be removed, reduce the load of subsequent biochemical process, the high volumetric loading of biological contact oxidation process, the application of membrane bioreactor decreases floor space all to a certain extent, saves soil.
In the present invention, the application of micro-hole aerator not only increases coefficient of oxygen utilization, treatment effect also reduces energy consumption; The specific aim application of discoloring agent, makes the colourity of waste water effectively be reduced; The application of film also makes the indexs such as the concentration of suspension of final outflow water, microorganism, bacterium, intestinal bacteria, pathogenic agent reach higher standard, thus provides new selection for cultivating wastewater purification.
The comprehensive energy consumption of cultivating wastewater purification method of the present invention is low, system strong shock resistance, floor space are little, treatment effect good.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a cultivating wastewater purification method, is characterized in that, comprising: pre-treatment, biochemical treatment and advanced treatment three phases;
Pretreatment stage: comprise grid slagging-off, regulate just heavy and flocculation sediment;
The biochemical treatment stage: comprise anaerobic treatment, the process of multi-stage biological catalytic oxidation;
The advanced treatment stage: comprise desolventing technology and Membrane Bioreactor for Wastewater Treatment.
2. cultivating wastewater purification method as claimed in claim 1, is characterized in that, described grid slagging-off operation is: sewage, through grid, tackles thick suspended substance by grid.
3. cultivating wastewater purification method as claimed in claim 1, is characterized in that, described adjustment just heavy operation is: after grid slagging-off, sewage enters adjustment preliminary sedimentation tank, stablizes sewage quality, the water yield, and larger particles impurity is tentatively precipitated.
4. cultivating wastewater purification method as claimed in claim 1, it is characterized in that, described flocculation sediment operation is: sewage enters flocculation sedimentation tank, adds polymerize aluminum chloride and polyacrylamide stirring reaction successively, makes most suspended substances precipitation removing in waste water.
5. cultivating wastewater purification method as claimed in claim 1, it is characterized in that, described anaerobic treatment operation is: flocculation sedimentation tank water outlet enters anaerobic pond, utilizes the effect of high density anerobe, organism is hydrolyzed, acidifying and methanation, remove the organism in waste water.
6. cultivating wastewater purification method as claimed in claim 1, it is characterized in that, described multi-stage biological catalytic oxidation treatment process is: sewage enters at least two-stage biological contact-oxidation pool by anaerobic pond, in pond, combined stuffing is set, and in Aerobic Pond, arrange micro-hole aerator, with to oxygenic aeration in pond.
7. cultivating wastewater purification method as claimed in claim 1, it is characterized in that, described desolventing technology operation is: by adding breeding wastewater discoloring agent, realizes removing the organism that develops the color in waste water, reduces COD simultaneously.
8. cultivating wastewater purification method as claimed in claim 1, it is characterized in that, described Membrane Bioreactor for Wastewater Treatment operation is: remove suspended solid and rest COD in water by membrane bioreactor.
CN201510952263.7A 2015-12-11 2015-12-11 Method for treating aquaculture wastewater Pending CN105541003A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106746215A (en) * 2016-12-20 2017-05-31 怀宁县森源生态养殖有限公司 A kind of processing method of pig farm waste water
CN106938874A (en) * 2017-04-19 2017-07-11 长江大学 Improve livestock breeding wastewater handling process
CN107324556A (en) * 2017-08-07 2017-11-07 重庆融极环保工程有限公司 A kind of breeding wastewater pretreating process
CN107721093A (en) * 2017-11-24 2018-02-23 吉林省农业科学院 A kind of intensive culture sewage plural serial stage handling process
CN108069560A (en) * 2016-11-11 2018-05-25 桐庐大洲畈农业开发有限公司 A kind for the treatment of process of breeding soft-shell turtle sewage
CN108218112A (en) * 2017-12-29 2018-06-29 宁波市建通环保科技有限公司 A kind of ecological treatment method of black and odorous water
CN109422425A (en) * 2017-08-25 2019-03-05 长沙创远环保科技有限公司 A kind of cultivating wastewater purification method
CN109665663A (en) * 2017-10-16 2019-04-23 四川奥尔森机电设备有限公司 A kind of processing method of livestock breeding wastewater
CN110015815A (en) * 2019-04-25 2019-07-16 雅荣(重庆)环保工程有限公司 A kind of processing system and method for breeding wastewater
CN110713322A (en) * 2019-11-13 2020-01-21 李洪腾 Breeding and slaughtering wastewater treatment system and method

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CN103183447A (en) * 2011-12-29 2013-07-03 宜兴市金琪洋生物质环境治理技术咨询有限公司 Treatment method of piggery wastewater
CN103466882A (en) * 2013-09-12 2013-12-25 安徽省绿巨人环境技术有限公司 Livestock and poultry breeding wastewater treatment technology
CN103922538B (en) * 2014-04-09 2015-05-06 无锡市新都环保科技有限公司 Livestock and poultry breeding wastewater treatment method
CN204848572U (en) * 2015-07-03 2015-12-09 绵阳科勤环保科技有限公司 Birds is raised and grows effluent treatment plant

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JPS6223604B2 (en) * 1982-10-25 1987-05-25 Takane Kitao
CN101323496A (en) * 2008-07-18 2008-12-17 宁波润泽畜牧环保科技有限公司 Scale hogpen sewage disposal method and integrated equipment thereof
CN103183447A (en) * 2011-12-29 2013-07-03 宜兴市金琪洋生物质环境治理技术咨询有限公司 Treatment method of piggery wastewater
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108069560A (en) * 2016-11-11 2018-05-25 桐庐大洲畈农业开发有限公司 A kind for the treatment of process of breeding soft-shell turtle sewage
CN106746215A (en) * 2016-12-20 2017-05-31 怀宁县森源生态养殖有限公司 A kind of processing method of pig farm waste water
CN106938874A (en) * 2017-04-19 2017-07-11 长江大学 Improve livestock breeding wastewater handling process
CN107324556A (en) * 2017-08-07 2017-11-07 重庆融极环保工程有限公司 A kind of breeding wastewater pretreating process
CN109422425A (en) * 2017-08-25 2019-03-05 长沙创远环保科技有限公司 A kind of cultivating wastewater purification method
CN109665663A (en) * 2017-10-16 2019-04-23 四川奥尔森机电设备有限公司 A kind of processing method of livestock breeding wastewater
CN107721093A (en) * 2017-11-24 2018-02-23 吉林省农业科学院 A kind of intensive culture sewage plural serial stage handling process
CN108218112A (en) * 2017-12-29 2018-06-29 宁波市建通环保科技有限公司 A kind of ecological treatment method of black and odorous water
CN110015815A (en) * 2019-04-25 2019-07-16 雅荣(重庆)环保工程有限公司 A kind of processing system and method for breeding wastewater
CN110713322A (en) * 2019-11-13 2020-01-21 李洪腾 Breeding and slaughtering wastewater treatment system and method

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