CN112125480A - Sewage treatment process - Google Patents
Sewage treatment process Download PDFInfo
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- CN112125480A CN112125480A CN202011050009.5A CN202011050009A CN112125480A CN 112125480 A CN112125480 A CN 112125480A CN 202011050009 A CN202011050009 A CN 202011050009A CN 112125480 A CN112125480 A CN 112125480A
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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
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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
- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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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
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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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
- 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
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
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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
- 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
- C02F3/347—Use of yeasts or fungi
Abstract
The invention discloses a sewage treatment process, which comprises the following steps: s1, disinfection: introducing sewage into a disinfection tank, adding disinfectant, adding ozone for fully mixing and disinfecting, and performing S2 precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent, accelerating precipitation, adding yeast and a multienzyme biological starter, and S3, discharging: discharging the sewage after the completion of the precipitation into a sludge tank, S4, filtering: and (3) introducing the sewage after the sewage discharge is finished into a filtering tank for filtering, and S5, detecting: the sewage after being filtered is subjected to DO value detection, temperature value detection and PH value detection, and in the use of the invention, a user can disinfect the sewage to avoid toxic substances in the sewage, and after disinfection, the user can introduce the sewage into the fluidized bed through the water pump to filter the sewage, and meanwhile, the purification of the sewage can be accelerated by using the suspended filler.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment process.
Background
Along with the development of urban scale and the continuous improvement of industrialization degree in China, a large amount of industrial sewage and domestic sewage which are difficult to treat are generated, a sewage treatment plant faces a serious challenge, particularly in the field of industrial sewage treatment, the sewage discharge amount is large, the water quality is complex, the toxicity is high, the ammonia nitrogen and the COD are high, a single aerobic process cannot completely carry out biochemical degradation on organic matters in the sewage, a method capable of efficiently removing the biological refractory substances is sought, and the method becomes the key point of biological sewage treatment research in recent years.
The existing traditional anoxic reaction tank has a simple structure, sewage enters the tank body and then is mixed with anaerobic bacteria to perform digestion reaction, macromolecular organic matters which are difficult to degrade in the sewage can be decomposed into micromolecular organic matters so as to be beneficial to aerobic biochemical reaction, the residence time of the process for treating industrial sewage is generally longer than eight hours, and the problems of large occupied area, long residence time, low efficiency, difficulty in reaching standards, high operation and running cost and the like exist.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a sewage treatment process.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a sewage treatment process comprises the following steps:
s1, disinfection: introducing the sewage into a disinfection tank, adding disinfectant, and adding ozone for full mixing and disinfection;
s2, precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent for accelerating precipitation, and adding yeast and a multienzyme biological starter;
s3, pollution discharge: discharging the sewage after the precipitation is finished into a sludge pool;
s4, filtering: introducing the sewage after the sewage discharge into a filtering tank for filtering;
s5, detection: and carrying out DO value detection, temperature value detection and PH value detection on the filtered sewage.
Preferably, the ozone is added in S1 and is conveyed by an ozone machine, and simultaneously chlorine dioxide can be added in S1 to disinfect the sewage for 20-30 min.
Preferably, in S2, the sewage is introduced into fluidized beds, which are aerobic biological fluidized bed and two-phase biological fluidized bed, respectively, and the flocculant is replaced by suspended filler.
Preferably, in S3, the sewage is discharged by using a sewage pump, and the sludge can be collected and processed by an integrated pulp scraper.
Preferably, a quartz sand filter screen, a PP cotton filter screen and an activated carbon filter screen are used for filtering in S4, and meanwhile, sewage can be filtered through a multi-medium filter and a ferro-manganese removing filter during drainage.
Preferably, the quartz sand filter screen is 1200 meshes to 1600 meshes, the PP cotton filter screen is 1300 meshes to 1700 meshes, and the surface area of the activated carbon filter screen per gram of the material is 500-1700 square meters.
Preferably, DO detects and PH detects and all adopts sewage dissolved oxygen appearance to detect among S5, and sewage temperature adopts temperature sensor to detect, can also detect the DO value and the PH value of sewage through the conductivity detector simultaneously.
Preferably, a sewage treatment agent can be further added in the S1 during disinfection, and the sewage treatment agent comprises the following components in parts by weight: 16-20 parts of clay bactericide, 1-3 parts of hydrogen peroxide, 1-5 parts of phosphorus-free environment-friendly scale inhibitor, 10-15 parts of inorganic corrosion inhibitor and 10-14 parts of acetic acid.
(III) advantageous effects
Compared with the prior art, the invention provides a sewage treatment process, which has the following beneficial effects:
when the invention is used, a user can disinfect sewage to avoid toxic substances in the sewage, after disinfection, the user can introduce the sewage into the fluidized bed through the water pump to filter the sewage, and meanwhile, the purification of the sewage can be accelerated through the use of the suspended filler;
and the two processes can be switched at will by using the components such as the flocculating agent, the medium filter and the like, the sewage purification speed can be increased by using the components such as the flocculating agent, the medium filter and the like, the sewage purification can be more delicate by using the components such as the activated carbon filter screen and the like, and the sludge left in the sewage purification can be used as fertilizer for plants, so that the purification cost is reduced.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: a sewage treatment process comprises the following steps:
s1, disinfection: introducing the sewage into a disinfection tank, adding disinfectant, and adding ozone for full mixing and disinfection;
s2, precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent for accelerating precipitation, and adding yeast and a multienzyme biological starter;
s3, pollution discharge: discharging the sewage after the precipitation is finished into a sludge pool;
s4, filtering: introducing the sewage after the sewage discharge into a filtering tank for filtering;
s5, detection: and carrying out DO value detection, temperature value detection and PH value detection on the filtered sewage.
In this embodiment, specifically: adding ozone into S1, conveying ozone by using an ozone machine, and simultaneously adding chlorine dioxide into S1 to disinfect the sewage for 20 min; through in the middle of adding sewage with disinfection water and ozone to decompose the noxious material in the middle of the sewage, can carry out the intensive mixing with the ozone that the ozone machine was injected into and water through the stirring simultaneously, reach better disinfection effect, can be changed disinfection water and ozone into chlorine dioxide simultaneously, chlorine dioxide can kill escherichia coli, bacterial spore, the heterotrophic bacteria in the water distribution net, sulfate reducing bacteria and fungi etc. in the very wide scope of pH value.
In this embodiment, specifically: in S2, sewage is introduced into fluidized beds which are respectively an aerobic biological fluidized bed and a two-phase biological fluidized bed, and a flocculating agent can be replaced by a suspended filler; the aerobic biological fluidized bed is characterized in that an oxygenation process and a fluidization process are separated, the carrier is fluidized completely by water flow, oxygenation equipment and membrane removal equipment are arranged outside the fluidized bed, only liquid and solid phases exist in the fluidized bed, the raw wastewater firstly passes through the oxygenation equipment and can utilize air or pure oxygen as an oxygen source to enable dissolved oxygen in the wastewater to reach a saturated state, so that the wastewater is treated, and the suspended filler is also called as porous rotary spherical suspended filler, and is a latest series product developed in various fillers adopted by domestic sewage treatment and biomembrane method treatment technologies, the biological sewage treating apparatus has stereo structure, great specific surface area, direct throwing, no need of fixing, easy filming, no blocking and fast sewage treating speed.
In this embodiment, specifically: in S3, sludge is discharged by using a sewage pump, and can be collected by an integrated pulp scraper; after the sludge is precipitated, the worker can discharge the sludge through the sewage pump and the integrated slurry scraper.
In this embodiment, specifically: the quartz sand filter screen, the PP cotton filter screen and the activated carbon filter screen are used for filtering in S4, and meanwhile, when water is drained, sewage is filtered through the multi-media filter and the iron and manganese removing filter.
In this embodiment, specifically: the quartz sand filter screen is 1200 meshes, the PP cotton filter screen is 1300 meshes, and the surface area of the activated carbon filter screen per gram of the activated carbon material is 700 square meters.
In this embodiment, specifically: DO detects and PH detects all adopts sewage dissolved oxygen appearance to detect in S5, and sewage temperature adopts temperature sensor to detect, can also detect the DO value and the PH value of sewage through the conductivity detector simultaneously.
In this embodiment, specifically: in S1, a sewage treatment agent can be added during disinfection, and the sewage treatment agent comprises the following components in parts by weight: 17 parts of clay bactericide, 1 part of hydrogen peroxide, 1 part of non-phosphorus environment-friendly scale inhibitor, 10 parts of inorganic corrosion inhibitor and 10 parts of acetic acid.
Example two
Referring to fig. 1, the present invention further provides a technical solution: a sewage treatment process comprises the following steps:
s1, disinfection: introducing the sewage into a disinfection tank, adding disinfectant, and adding ozone for full mixing and disinfection;
s2, precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent for accelerating precipitation, and adding yeast and a multienzyme biological starter;
s3, pollution discharge: discharging the sewage after the precipitation is finished into a sludge pool;
s4, filtering: introducing the sewage after the sewage discharge into a filtering tank for filtering;
s5, detection: and carrying out DO value detection, temperature value detection and PH value detection on the filtered sewage.
In this embodiment, specifically: adding ozone into S1, conveying ozone by using an ozone machine, and simultaneously adding chlorine dioxide into S1 to disinfect the sewage for 30 min; through in the middle of adding sewage with disinfection water and ozone to decompose the noxious material in the middle of the sewage, can carry out the intensive mixing with the ozone that the ozone machine was injected into and water through the stirring simultaneously, reach better disinfection effect, can be changed disinfection water and ozone into chlorine dioxide simultaneously, chlorine dioxide can kill escherichia coli, bacterial spore, the heterotrophic bacteria in the water distribution net, sulfate reducing bacteria and fungi etc. in the very wide scope of pH value.
In this embodiment, specifically: in S2, sewage is introduced into fluidized beds which are respectively an aerobic biological fluidized bed and a two-phase biological fluidized bed, and a flocculating agent can be replaced by a suspended filler; the aerobic biological fluidized bed is characterized in that an oxygenation process and a fluidization process are separated, the carrier is fluidized completely by water flow, oxygenation equipment and membrane removal equipment are arranged outside the fluidized bed, only liquid and solid phases exist in the fluidized bed, the raw wastewater firstly passes through the oxygenation equipment and can utilize air or pure oxygen as an oxygen source to enable dissolved oxygen in the wastewater to reach a saturated state, so that the wastewater is treated, and the suspended filler is also called as porous rotary spherical suspended filler, and is a latest series product developed in various fillers adopted by domestic sewage treatment and biomembrane method treatment technologies, the biological sewage treating apparatus has stereo structure, great specific surface area, direct throwing, no need of fixing, easy filming, no blocking and fast sewage treating speed.
In this embodiment, specifically: in S3, sludge is discharged by using a sewage pump, and can be collected by an integrated pulp scraper; after the sludge is precipitated, the worker can discharge the sludge through the sewage pump and the integrated slurry scraper.
In this embodiment, specifically: the quartz sand filter screen, the PP cotton filter screen and the activated carbon filter screen are used for filtering in S4, and meanwhile, when water is drained, sewage is filtered through the multi-media filter and the iron and manganese removing filter.
In this embodiment, specifically: the quartz sand filter screen is 1400 meshes, the PP cotton filter screen is 1300 meshes, and the surface area of the activated carbon filter screen per gram of the activated carbon material is 900 square meters.
In this embodiment, specifically: DO detects and PH detects all adopts sewage dissolved oxygen appearance to detect in S5, and sewage temperature adopts temperature sensor to detect, can also detect the DO value and the PH value of sewage through the conductivity detector simultaneously.
In this embodiment, specifically: in S1, a sewage treatment agent can be added during disinfection, and the sewage treatment agent comprises the following components in parts by weight: 18 parts of clay bactericide, 2 parts of hydrogen peroxide, 2 parts of phosphorus-free environment-friendly scale inhibitor, 15 parts of inorganic corrosion inhibitor and 11 parts of acetic acid.
EXAMPLE III
Referring to fig. 1, the present invention further provides a technical solution: a sewage treatment process comprises the following steps:
s1, disinfection: introducing the sewage into a disinfection tank, adding disinfectant, and adding ozone for full mixing and disinfection;
s2, precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent for accelerating precipitation, and adding yeast and a multienzyme biological starter;
s3, pollution discharge: discharging the sewage after the precipitation is finished into a sludge pool;
s4, filtering: introducing the sewage after the sewage discharge into a filtering tank for filtering;
s5, detection: and carrying out DO value detection, temperature value detection and PH value detection on the filtered sewage.
In this embodiment, specifically: adding ozone into S1, conveying ozone by using an ozone machine, and simultaneously adding chlorine dioxide into S1 to disinfect the sewage for 40 min; through in the middle of adding sewage with disinfection water and ozone to decompose the noxious material in the middle of the sewage, can carry out the intensive mixing with the ozone that the ozone machine was injected into and water through the stirring simultaneously, reach better disinfection effect, can be changed disinfection water and ozone into chlorine dioxide simultaneously, chlorine dioxide can kill escherichia coli, bacterial spore, the heterotrophic bacteria in the water distribution net, sulfate reducing bacteria and fungi etc. in the very wide scope of pH value.
In this embodiment, specifically: in S2, sewage is introduced into fluidized beds which are respectively an aerobic biological fluidized bed and a two-phase biological fluidized bed, and a flocculating agent can be replaced by a suspended filler; the aerobic biological fluidized bed is characterized in that an oxygenation process and a fluidization process are separated, the carrier is fluidized completely by water flow, oxygenation equipment and membrane removal equipment are arranged outside the fluidized bed, only liquid and solid phases exist in the fluidized bed, the raw wastewater firstly passes through the oxygenation equipment and can utilize air or pure oxygen as an oxygen source to enable dissolved oxygen in the wastewater to reach a saturated state, so that the wastewater is treated, and the suspended filler is also called as porous rotary spherical suspended filler, and is a latest series product developed in various fillers adopted by domestic sewage treatment and biomembrane method treatment technologies, the biological sewage treating apparatus has stereo structure, great specific surface area, direct throwing, no need of fixing, easy filming, no blocking and fast sewage treating speed.
In this embodiment, specifically: in S3, sludge is discharged by using a sewage pump, and can be collected by an integrated pulp scraper; after the sludge is precipitated, the worker can discharge the sludge through the sewage pump and the integrated slurry scraper.
In this embodiment, specifically: the quartz sand filter screen, the PP cotton filter screen and the activated carbon filter screen are used for filtering in S4, and meanwhile, when water is drained, sewage is filtered through the multi-media filter and the iron and manganese removing filter.
In this embodiment, specifically: the quartz sand filter screen is 1500 meshes, the PP cotton filter screen is 1300 meshes, and the surface area of the activated carbon filter screen per gram of the activated carbon material is 1100 square meters.
In this embodiment, specifically: DO detects and PH detects all adopts sewage dissolved oxygen appearance to detect in S5, and sewage temperature adopts temperature sensor to detect, can also detect the DO value and the PH value of sewage through the conductivity detector simultaneously.
In this embodiment, specifically: in S1, a sewage treatment agent can be added during disinfection, and the sewage treatment agent comprises the following components in parts by weight: 13 parts of clay bactericide, 3 parts of hydrogen peroxide, 3 parts of phosphorus-free environment-friendly scale inhibitor, 19 parts of inorganic corrosion inhibitor and 14 parts of acetic acid.
To sum up, this sewage treatment process's theory of operation and working process do, when using, at first when carrying out sewage treatment, the user can disinfect to sewage, avoid having the toxic substance in the sewage, after disinfecting, the user can introduce the inside of fluidized bed with sewage through the water pump, carry out the filtration of sewage, when filtering, can add saccharomycete and multienzyme biological starter, make the mud of sediment can regard as the nourishment of plant, can accelerate the precipitation effect when the flocculating agent is put in simultaneously, make things convenient for the staff to use, after the blowdown, the user can filter sewage, filter through parts such as active carbon filter screen tiny debris in the sewage, carry out each item index that detects sewage through sewage dissolved oxygen appearance after filtering the completion.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A sewage treatment process is characterized by comprising the following steps:
s1, disinfection: introducing the sewage into a disinfection tank, adding disinfectant, and adding ozone for full mixing and disinfection;
s2, precipitation: introducing the disinfected sewage into a fluidized bed for precipitation, adding a flocculating agent for accelerating precipitation, and adding yeast and a multienzyme biological starter;
s3, pollution discharge: discharging the sewage after the precipitation is finished into a sludge pool;
s4, filtering: introducing the sewage after the sewage discharge into a filtering tank for filtering;
s5, detection: and carrying out DO value detection, temperature value detection and PH value detection on the filtered sewage.
2. The wastewater treatment process according to claim 1, characterized in that: adding ozone into S1, conveying ozone with ozone machine, and adding chlorine dioxide into S1 to sterilize the sewage for 20-30 min.
3. The wastewater treatment process according to claim 1, characterized in that: in S2, the sewage is introduced into fluidized beds, namely an aerobic biological fluidized bed and a two-phase biological fluidized bed, and the flocculating agent can be replaced by suspended filler.
4. The wastewater treatment process according to claim 1, characterized in that: in S3, the sewage is discharged by a sewage pump, and the sludge can be collected and processed by an integrated pulp scraper.
5. The wastewater treatment process according to claim 1, characterized in that: the quartz sand filter screen, the PP cotton filter screen and the activated carbon filter screen are used for filtering in S4, and meanwhile, when water is drained, sewage is filtered through the multi-media filter and the iron and manganese removing filter.
6. The wastewater treatment process according to claim 5, characterized in that: the quartz sand filter screen is 1200 meshes to 1600 meshes, the PP cotton filter screen is 1300 meshes to 1700 meshes, and the surface area of the activated carbon filter screen per gram of the material is 500-1700 square meters.
7. The wastewater treatment process according to claim 1, characterized in that: DO detects and PH detects all adopts sewage dissolved oxygen appearance to detect in S5, and sewage temperature adopts temperature sensor to detect, can also detect the DO value and the PH value of sewage through the conductivity detector simultaneously.
8. The wastewater treatment process according to claim 1, characterized in that: in S1, a sewage treatment agent can be added during disinfection, and the sewage treatment agent comprises the following components in parts by weight: 16-20 parts of clay bactericide, 1-3 parts of hydrogen peroxide, 1-5 parts of phosphorus-free environment-friendly scale inhibitor, 10-15 parts of inorganic corrosion inhibitor and 10-14 parts of acetic acid.
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| CN202011050009.5A CN112125480A (en) | 2020-09-29 | 2020-09-29 | Sewage treatment process |
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| CN202011050009.5A CN112125480A (en) | 2020-09-29 | 2020-09-29 | Sewage treatment process |
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Citations (5)
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|---|---|---|---|---|
| CN1278516A (en) * | 2000-08-10 | 2001-01-03 | 何宝财 | Artesian sewage treating process |
| CN101074141A (en) * | 2007-06-20 | 2007-11-21 | 大连春兴水处理科技发展有限公司 | Process for regenerating, recovering and reutilizing low-concentration organic waste water |
| CN101402510A (en) * | 2008-11-14 | 2009-04-08 | 盐城海德能水处理环保工程有限公司 | Monotubular anaerobic-aerobic composite microencapsulation biological fluidized bed automatic control apparatus |
| CN107879519A (en) * | 2017-12-23 | 2018-04-06 | 淮北智淮科技有限公司 | A kind of domestic sewage treatment process |
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-
2020
- 2020-09-29 CN CN202011050009.5A patent/CN112125480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278516A (en) * | 2000-08-10 | 2001-01-03 | 何宝财 | Artesian sewage treating process |
| CN101074141A (en) * | 2007-06-20 | 2007-11-21 | 大连春兴水处理科技发展有限公司 | Process for regenerating, recovering and reutilizing low-concentration organic waste water |
| CN101402510A (en) * | 2008-11-14 | 2009-04-08 | 盐城海德能水处理环保工程有限公司 | Monotubular anaerobic-aerobic composite microencapsulation biological fluidized bed automatic control apparatus |
| CN107879519A (en) * | 2017-12-23 | 2018-04-06 | 淮北智淮科技有限公司 | A kind of domestic sewage treatment process |
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| 李闻欣: "《皮革环保工程概论》", 31 August 2015, 中国轻工业出版社, pages: 96 - 98 * |
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Application publication date: 20201225 |