CN106186560A - A kind of energy-saving and emission-reducing sewage water treatment method - Google Patents

A kind of energy-saving and emission-reducing sewage water treatment method Download PDF

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CN106186560A
CN106186560A CN201610745854.1A CN201610745854A CN106186560A CN 106186560 A CN106186560 A CN 106186560A CN 201610745854 A CN201610745854 A CN 201610745854A CN 106186560 A CN106186560 A CN 106186560A
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parts
sewage
energy
emission
saving
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蒋月亚
俞祖良
陈海峰
吴国芳
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ZHEJIANG HENGSHENG DYEING AND FINISHING Co Ltd
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ZHEJIANG HENGSHENG DYEING AND FINISHING Co Ltd
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Publication of CN106186560A publication Critical patent/CN106186560A/en
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    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1263—Sequencing batch reactors [SBR]
    • 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
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • 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

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a kind of energy-saving and emission-reducing sewage water treatment method, including pretreatment, anaerobic treatment, SBR pond processes, chemical reaction pond processes and sludge drying step, wherein, chemical reaction pond processes the sewage-treating agent used, injected volume is the 0.2～0.3% of sewage weight, the process time is 12～24 hours, it is made up of the component of following weight portion: polyacrylamide 28～33 parts, hydroxypropyl beta cyclodextrin 22～31 parts, asbestos 11～22 parts, aluminium oxide 12～20 parts, allyl polyglycol 5～9 parts, complex microorganism 5～8 parts, calcium hypochlorite 4～9 parts, sodium hypochlorite 4～9 parts.The sewage water treatment method of the present invention, it it is critical only that and employ a kind of novel sewage-treating agent, and injected volume is only the 0.2～0.3% of sewage weight, and the process time is 12～24 hours, there is not the problems such as energy waste, is a kind of energy-saving and emission-reducing sewage water treatment method.

Description

A kind of energy-saving and emission-reducing sewage water treatment method
Technical field
The present invention relates to a kind of sewage water treatment method, be specifically related to a kind of energy-saving and emission-reducing sewage water treatment method, belong to dirty Water-treatment technology field.
Background technology
Energy-saving and emission-reduction are increasingly pursued by domestic and international environmentalist, and so-called energy-saving and emission-reduction refer to save physical resources and energy Amount resource, reduces the discharge of garbage and environment harmful etc..But it is as quickening and the industrially scalable of people's rhythm of life Continuous increase, produced sewage also gets more and more, and naturally should carry out sewage disposal according to the theory of energy-saving and emission-reduction.Mesh Before, it is each that sewage disposal is widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, urban look, medical treatment and food and drink etc. Individual field, is to make sewage reach a certain water body of draining or process that it is purified by the water quality requirement that reuses.
Sewage water treatment method is a lot, typically can be summarized as Physical, chemical method and bioanalysis, but, according to domestic for many years Sewage disposal experience, generally there is high energy consumption and inefficient problem, and do not meet the theory of energy-saving and emission-reduction.Therefore, how The sewage disposal that carries out of energy-saving and emission-reduction is to put a great problem in face of people at present.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of energy-saving and emission-reducing sewage disposal side Method.
For achieving the above object, the present invention uses following technical proposals:
A kind of energy-saving and emission-reducing sewage water treatment method, process including pretreatment, anaerobic treatment, SBR pond, chemical reaction pond process and Sludge drying step, wherein, chemical reaction pond processes the sewage-treating agent that used, injected volume be sewage weight 0.2～ 0.3%, the process time is 12～24 hours, and it is made up of the component of following weight portion: polyacrylamide 28～33 parts, hydroxyl Propyl-beta-cyclodextrin 22～31 parts, asbestos 11～22 parts, aluminium oxide 12～20 parts, allyl polyglycol 5～9 parts, compound micro- Biological 5～8 parts, calcium hypochlorite 4～9 parts, sodium hypochlorite 4～9 parts, described complex microorganism is Bacillus licheniformis, addicted to acid Lactobacillus and the mixed bacteria powder of enterococcus faecalis composition, each strain content is respectively 1 × 106～1 × 108Individual cell/g.
Preferably, described sewage-treating agent is made up of the component of following weight portion: polyacrylamide 30～32 parts, hydroxyl Propyl-beta-cyclodextrin 24～30 parts, asbestos 13～20 parts, aluminium oxide 13～18 parts, allyl polyglycol 6～8 parts, compound micro- Biological 6～7 parts, calcium hypochlorite 5～8 parts, sodium hypochlorite 5～8 parts.
It is further preferred that what described sewage-treating agent was made up of the component of following weight portion: polyacrylamide 31 parts, HP-β-CD 26 parts, 15 parts of asbestos, aluminium oxide 16 parts, allyl polyglycol 7 parts, complex microorganism 6 parts, secondary chlorine Acid calcium 6 parts, sodium hypochlorite 7 parts.
Preferably, the preparation method of described sewage-treating agent, is that each component of formula ratio is mixed and be get final product.
Preferably, described pretreatment is to collect sanitary sewage through sump to enter regulating reservoir, regulates pH=5～6.
Preferably, the flora that anaerobic treatment is used is to be constituted, during anaerobic treatment with methanogen and acetogen Being controlled by dissolved oxygen 0.2～0.5mg/L, the process time is 3～5 hours.
Preferably, each cycle water inlet in SBR pond is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, and aeration 2 is little Time, stop exposing stirring 1 hour, sedimentation and drawing 2 hours.
Preferably, the process time of sludge drying is 12～16 hours.
Beneficial effects of the present invention:
The sewage water treatment method of the present invention, it it is critical only that and employ a kind of novel sewage-treating agent, is with polyacrylamide Being main with HP-β-CD, it is auxiliary for having preferable flocculation ability and molecule inclusion ability, asbestos and aluminium oxide, enhances Flocculation ability, with the addition of allyl polyglycol, complex microorganism, calcium hypochlorite and sodium hypochlorite, strengthens and decomposes absorbability And well achieve decolouring.Use above-mentioned sewage-treating agent to carry out sewage disposal, injected volume be only sewage weight 0.2～ 0.3%, the process time is 12～24 hours, there is not the problems such as energy waste, is a kind of energy-saving and emission-reducing sewage water treatment method.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further elaborated, it should explanation, the description below merely to Explain the present invention, its content is not defined.
The Bacillus licheniformis that the present invention relates to, bacillus acidophilus, enterococcus faecalis, methanogen, acetogen etc., all purchase From Jiangsu Lv Ke Bioisystech Co., Ltd.
Embodiment 1:
A kind of energy-saving and emission-reducing sewage water treatment method, comprises the following steps that
(1) sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=5；
(2) carry out anaerobic treatment: the flora constituted with methanogen and acetogen, dissolved oxygen controlled at 0.2mg/L, The process time is 3 hours；The biogas produced during Gai enters liquid packing storage, for the later use of biogas；
(3) SBR pond processes, mud-water separation, and water outlet enters step (4)；Mud enters step (5)；Wherein: each cycle in SBR pond Water inlet is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, sedimentation and drawing 2 Hour；
(4) processing through chemical reaction pond, filter, filtering residue enters step (5), and filtrate is expelled to reuse pool reuse；Wherein, chemistry Sewage-treating agent in reaction tank, injected volume is the 0.2% of sewage weight, and it is following components to be mixed and get final product: polyacrylamide 28kg, HP-β-CD 22kg, asbestos 11kg, aluminium oxide 12kg, allyl polyglycol 5kg, complex microorganism 5kg, Calcium hypochlorite 4kg, sodium hypochlorite 4kg；Described complex microorganism is Bacillus licheniformis, bacillus acidophilus and enterococcus faecalis group The mixed bacteria powder become, each strain content is respectively 1 × 106Individual cell/g；
(5) filtering residue and sludge drying process 12 hours, are finally used by outward transport.
Embodiment 2:
A kind of energy-saving and emission-reducing sewage water treatment method, comprises the following steps that
(1) sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=6；
(2) carry out anaerobic treatment: the flora constituted with methanogen and acetogen, dissolved oxygen controlled at 0.5mg/L, The process time is 5 hours；The biogas produced during Gai enters liquid packing storage, for the later use of biogas；
(3) SBR pond processes, mud-water separation, and water outlet enters step (4)；Mud enters step (5)；Wherein: each cycle in SBR pond Water inlet is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, sedimentation and drawing 2 Hour；
(4) processing through chemical reaction pond, filter, filtering residue enters step (5), and filtrate is expelled to reuse pool reuse；Wherein, chemistry Sewage-treating agent in reaction tank, injected volume is the 0.3% of sewage weight, and it is following components to be mixed and get final product: polyacrylamide 33kg, HP-β-CD 31kg, asbestos 22kg, aluminium oxide 20kg, allyl polyglycol 9kg, complex microorganism 8kg, Calcium hypochlorite 9kg, sodium hypochlorite 9kg；Described complex microorganism is Bacillus licheniformis, bacillus acidophilus and enterococcus faecalis group The mixed bacteria powder become, each strain content is respectively 1 × 108Individual cell/g；
(5) filtering residue and sludge drying process 16 hours, are finally used by outward transport.
Embodiment 3:
A kind of energy-saving and emission-reducing sewage water treatment method, comprises the following steps that
(1) sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=5；
(2) carry out anaerobic treatment: the flora constituted with methanogen and acetogen, dissolved oxygen controlled at 0.2mg/L, The process time is 3 hours；The biogas produced during Gai enters liquid packing storage, for the later use of biogas；
(3) SBR pond processes, mud-water separation, and water outlet enters step (4)；Mud enters step (5)；Wherein: each cycle in SBR pond Water inlet is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, sedimentation and drawing 2 Hour；
(4) processing through chemical reaction pond, filter, filtering residue enters step (5), and filtrate is expelled to reuse pool reuse；Wherein, chemistry Sewage-treating agent in reaction tank, injected volume is the 0.2% of sewage weight, and it is following components to be mixed and get final product: polyacrylamide 30kg, HP-β-CD 24kg, asbestos 13kg, aluminium oxide 13kg, allyl polyglycol 6kg, complex microorganism 6kg, Calcium hypochlorite 5kg, sodium hypochlorite 5kg；Described complex microorganism is Bacillus licheniformis, bacillus acidophilus and enterococcus faecalis group The mixed bacteria powder become, each strain content is respectively 1 × 106Individual cell/g；
(5) filtering residue and sludge drying process 12 hours, are finally used by outward transport.
Embodiment 4:
A kind of energy-saving and emission-reducing sewage water treatment method, comprises the following steps that
(1) sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=6；
(2) carry out anaerobic treatment: the flora constituted with methanogen and acetogen, dissolved oxygen controlled at 0.5mg/L, The process time is 5 hours；The biogas produced during Gai enters liquid packing storage, for the later use of biogas；
(3) SBR pond processes, mud-water separation, and water outlet enters step (4)；Mud enters step (5)；Wherein: each cycle in SBR pond Water inlet is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, sedimentation and drawing 2 Hour；
(4) processing through chemical reaction pond, filter, filtering residue enters step (5), and filtrate is expelled to reuse pool reuse；Wherein, chemistry Sewage-treating agent in reaction tank, injected volume is the 0.3% of sewage weight, and it is following components to be mixed and get final product: polyacrylamide 32kg, HP-β-CD 30kg, asbestos 20kg, aluminium oxide 18kg, allyl polyglycol 8kg, complex microorganism 7kg, Calcium hypochlorite 8kg, sodium hypochlorite 8kg；Described complex microorganism is Bacillus licheniformis, bacillus acidophilus and enterococcus faecalis group The mixed bacteria powder become, each strain content is respectively 1 × 108Individual cell/g；
(5) filtering residue and sludge drying process 16 hours, are finally used by outward transport.
Embodiment 5:
A kind of energy-saving and emission-reducing sewage water treatment method, comprises the following steps that
(1) sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=6；
(2) carry out anaerobic treatment: the flora constituted with methanogen and acetogen, dissolved oxygen controlled at 0.4mg/L, The process time is 4 hours；The biogas produced during Gai enters liquid packing storage, for the later use of biogas；
(3) SBR pond processes, mud-water separation, and water outlet enters step (4)；Mud enters step (5)；Wherein: each cycle in SBR pond Water inlet is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, sedimentation and drawing 2 Hour；
(4) processing through chemical reaction pond, filter, filtering residue enters step (5), and filtrate is expelled to reuse pool reuse；Wherein, chemistry Sewage-treating agent in reaction tank, injected volume is the 0.2% of sewage weight, and it is following components to be mixed and get final product: polyacrylamide 31kg, HP-β-CD 26kg, asbestos 15kg, aluminium oxide 16kg, allyl polyglycol 7kg, complex microorganism 6kg, Calcium hypochlorite 6kg, sodium hypochlorite 7kg；Described complex microorganism is Bacillus licheniformis, bacillus acidophilus and enterococcus faecalis group The mixed bacteria powder become, each strain content is respectively 1 × 107Individual cell/g；
(5) filtering residue and sludge drying process 14 hours, are finally used by outward transport.
Test example
As a example by the sewage of certain sewage treatment plant, influent quality situation: COD (COD) concentration is 2500mg/L, ammonia nitrogen (NH3-N) concentration is 820mg/L, total phosphorus (TP) concentration is 75mg/L, and the sewage water treatment method being respectively adopted embodiment 1～5 enters Row processes, and investigation step (4) discharge filtrate, as the water quality situation of recycle-water, the results are shown in Table 1.
Table 1. quality of reused water situation
COD(mg/L) COD clearance (%) NH3-N(mg/L) NH3-N clearance (%) TP(mg/L) TP clearance (%)
Embodiment 1 11 99.56 0.5 99.94 4 94.67
Embodiment 2 11 99.56 0.5 99.94 4 94.67
Embodiment 3 10 99.6 0.4 99.95 3 96
Embodiment 4 10 99.6 0.4 99.95 3 96
Embodiment 5 9 99.64 0.3 99.96 2 97.33
COD, NH of embodiment 1～53-N and TP concentration all reach country's reuse standard.
Table 2 shows the colourity situation into water and water outlet.
Table 2. water inlet and the colourity information slip of water outlet
Water inlet colourity Effluent color dilution
Embodiment 1 350 25
Embodiment 2 349 24
Embodiment 3 350 21
Embodiment 4 348 20
Embodiment 5 350 15
From table 2 it can be seen that the sewage water treatment method of embodiment 1～5, all having preferable decolorizing effect, effluent quality is good, colourity Low, exceed country-level emission standard A.
Although the above-mentioned detailed description of the invention to the present invention is described, but not limit to scope System, on the basis of technical scheme, those skilled in the art need not to pay that creative work can make is each Plant amendment or deformation still within protection scope of the present invention.

Claims (8)

1. an energy-saving and emission-reducing sewage water treatment method, it is characterised in that include that pretreatment, anaerobic treatment, SBR pond process, change Learning reaction tank to process and sludge drying step, wherein, chemical reaction pond processes the sewage-treating agent used, and injected volume is sewage The 0.2～0.3% of weight, the process time is 12～24 hours, and it is made up of the component of following weight portion: polyacrylamide 28～33 parts, HP-β-CD 22～31 parts, asbestos 11～22 parts, aluminium oxide 12～20 parts, allyl polyglycol 5 ～9 parts, complex microorganism 5～8 parts, calcium hypochlorite 4～9 parts, sodium hypochlorite 4～9 parts, described complex microorganism is lichens bud Spore bacillus, bacillus acidophilus and the mixed bacteria powder of enterococcus faecalis composition, each strain content is respectively 1 × 106～1 × 108 Individual cell/g.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that described sewage-treating agent It is made up of the component of following weight portion: polyacrylamide 30～32 parts, HP-β-CD 24～30 parts, asbestos 13 ～20 parts, aluminium oxide 13～18 parts, allyl polyglycol 6～8 parts, complex microorganism 6～7 parts, calcium hypochlorite 5～8 parts, secondary Sodium chlorate 5～8 parts.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that described sewage-treating agent It is made up of the component of following weight portion: polyacrylamide 31 parts, HP-β-CD 26 parts, 15 parts of asbestos, aluminium oxide 16 parts, allyl polyglycol 7 parts, complex microorganism 6 parts, calcium hypochlorite 6 parts, sodium hypochlorite 7 parts.
4. according to a kind of energy-saving and emission-reducing sewage water treatment method according to any one of claims 1 to 3, it is characterised in that institute State the preparation method of sewage-treating agent, be that each component of formula ratio is mixed and get final product.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that described pretreatment be by Sanitary sewage is collected through sump and is entered regulating reservoir, regulates pH=5～6.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that anaerobic treatment is used Flora be to be constituted with methanogen and acetogen, during anaerobic treatment, dissolved oxygen is controlled 0.2～0.5mg/L, place The reason time is 3～5 hours.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that SBR pond each cycle is entered Water is 100m3, the operation time is 6 hours, wherein, intakes 1 hour, aeration 2 hours, stops exposing stirring 1 hour, and sedimentation and drawing 2 is little Time.
A kind of energy-saving and emission-reducing sewage water treatment method the most according to claim 1, it is characterised in that the process of sludge drying Time is 12～16 hours.
CN201610745854.1A 2016-08-29 2016-08-29 A kind of energy-saving and emission-reducing sewage water treatment method Pending CN106186560A (en)

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CN107162325A (en) * 2017-06-01 2017-09-15 中国水产科学研究院长江水产研究所 A kind of processing method for cultivating raw water
CN112741113A (en) * 2021-02-20 2021-05-04 东北农业大学 Microbial preparation for preventing and treating potato early blight and application thereof

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