CN111056716A - Buried biochemical sewage treatment method - Google Patents
Buried biochemical sewage treatment method Download PDFInfo
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- CN111056716A CN111056716A CN202010025629.7A CN202010025629A CN111056716A CN 111056716 A CN111056716 A CN 111056716A CN 202010025629 A CN202010025629 A CN 202010025629A CN 111056716 A CN111056716 A CN 111056716A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/30—Aerobic and anaerobic processes
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a buried biochemical sewage treatment method, which comprises the following steps of S1, performing solid-liquid separation, wherein multiple layers of filter screens are obliquely arranged from top to bottom in sequence to perform solid-liquid separation on sewage, a solid recovery tank is arranged at the lower end of each filter screen, the pH value of the sewage is adjusted to be neutral, and the sewage is pumped into an anaerobic tank. According to the invention, the sewage is subjected to multi-layer solid-liquid separation, so that solid impurities in the sewage are reduced to the maximum extent, organic substances are treated by aerobic microorganisms after high-concentration organic wastewater is treated by anaerobic microorganisms, residual organic substances are treated by an air floatation method, inorganic impurities are adsorbed by sand, straws and silt, and the residual water is absorbed by emergent aquatic plants, so that the treatment efficiency is improved and the residual sewage is low.
Description
Technical Field
The invention relates to the technical field of biochemical sewage treatment, in particular to a buried biochemical sewage treatment method.
Background
The biochemical treatment of sewage is a method for converting organic pollutants in a dissolved and colloidal state in sewage into harmless substances by utilizing the metabolism of microorganisms so as to realize purification. The method can be divided into an aerobic biological treatment method and an anaerobic biological treatment method, wherein the former method mainly comprises an activated sludge method, a biofilm method, an oxidation pond method, sewage irrigation and the like.
The existing treatment method has single treatment means and can not utilize biological diversity to treat sewage, so the treatment efficiency is low and the sewage discharge can not reach the standard.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a buried biochemical sewage treatment method.
The invention provides a buried biochemical sewage treatment method, which comprises the following steps:
s1, performing solid-liquid separation, namely, sequentially arranging a plurality of layers of filter screens in an inclined manner from top to bottom to perform solid-liquid separation on sewage, arranging a solid recovery tank at the lower end of each filter screen, adjusting the pH value of the sewage to be neutral, and pumping the sewage into an anaerobic tank;
s2: anaerobic microorganism treatment, namely performing oxygen consumption treatment on sewage in an anaerobic tank, adding anaerobic microorganisms into the sewage, decomposing high-concentration organic substances in the sewage into inorganic substances, centrifugally stirring and precipitating the treated sewage, and recovering the anaerobic microorganisms from precipitates;
s3: aerobic microorganism treatment, namely introducing the sewage into an aerobic tank, adding aerobic microorganisms into the sewage after anaerobic reaction, introducing air and stirring to decompose organic substances remained in the sewage into inorganic substances, and recovering the aerobic microorganisms from precipitates after centrifugal precipitation;
s4: performing air floatation treatment, namely continuously introducing sewage into an air floatation tank, wherein an air floatation tank is arranged on the inner wall of the bottom of the air floatation tank, micro air outlet holes distributed at equal intervals are formed in the top of the air floatation tank, the bottom of the air floatation tank is connected with an air pump through a guide pipe, and a one-way air inlet valve is installed on the guide pipe in a butt-clamping manner to prevent the sewage from flowing back;
s5: the adsorption tank is internally provided with a plurality of containing net cages in the vertical direction, the top parts of the net cages are opened and used for containing adsorption materials, gauze is bonded on the inner walls of the net cages, and porous gravel, straws and silt are sequentially filled in the net cages;
s6: the plant absorption tank is used for sucking clarified water absorbed by the absorption tank into the plant absorption tank, various emergent aquatic plants are planted in the plant absorption tank and absorb residual inorganic matters in the water, and supernatant of the plant absorption tank is discharged through an overflow port.
Preferably, the diameters of the meshes of the multiple layers of filter screens are sequentially reduced from top to bottom.
Preferably, be provided with agitating unit in the air supporting pond, and be equipped with the kickboard on the liquid level in air supporting pond, install on the kickboard and be used for extracting the dirty mechanism of taking out of air supporting foam.
Preferably, the gauze is used for fixing the sand, the straws and the silt in the net cage, so that the sand, the straws and the silt are prevented from flowing away from the net cage, and the top of the net cage is clamped with a top cover.
Preferably, the overflow port of the plant absorption tank is arranged at the position which is far from the bottom 2/3-4/5 on the outer wall of one side of the plant absorption tank.
The invention has the beneficial effects that:
according to the invention, the sewage is subjected to multi-layer solid-liquid separation, so that solid impurities in the sewage are reduced to the maximum extent, organic substances are treated by aerobic microorganisms after high-concentration organic wastewater is treated by anaerobic microorganisms, residual organic substances are treated by an air floatation method, inorganic impurities are adsorbed by sand, straws and silt, and the residual water is absorbed by emergent aquatic plants, so that the treatment efficiency is improved and the residual sewage is low.
Drawings
FIG. 1 is a schematic structural view of a treatment apparatus of a buried biochemical sewage treatment method according to the present invention;
FIG. 2 is a schematic view of the working flow structure of a buried biochemical sewage treatment method according to 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.
Referring to fig. 1-2, a buried biochemical sewage treatment method includes the following steps:
s1, performing solid-liquid separation, namely performing solid-liquid separation on sewage by a plurality of layers of filter screens which are sequentially arranged in an inclined manner from top to bottom and have sequentially reduced mesh apertures, arranging a solid recovery tank at the lower end of each filter screen, adjusting the pH value of the sewage to be neutral, and pumping the sewage into an anaerobic tank;
s2: anaerobic microorganism treatment, namely performing oxygen consumption treatment on sewage in an anaerobic tank, adding anaerobic microorganisms into the sewage, decomposing high-concentration organic substances in the sewage into inorganic substances, centrifugally stirring and precipitating the treated sewage, and recovering the anaerobic microorganisms from precipitates;
s3: aerobic microorganism treatment, namely introducing the sewage into an aerobic tank, adding aerobic microorganisms into the sewage after anaerobic reaction, introducing air and stirring to decompose organic substances remained in the sewage into inorganic substances, and recovering the aerobic microorganisms from precipitates after centrifugal precipitation;
s4: performing air floatation treatment, continuously introducing sewage into an air floatation tank, wherein an air floatation tank is arranged on the inner wall of the bottom of the air floatation tank, micro air outlet holes distributed at equal intervals are formed in the top of the air floatation tank, the bottom of the air floatation tank is connected with an air pump through a guide pipe, a one-way air inlet valve is installed on the guide pipe in a butt-clamping mode to prevent sewage from flowing back, a stirring device is arranged in the air floatation tank, a floating plate is arranged on the liquid level of the air floatation tank, and a sewage pumping mechanism for pumping air floatation foam is;
s5: the adsorption tank is internally provided with a plurality of containing net cages in the vertical direction, the top parts of the net cages are open and used for containing adsorption materials, gauze is bonded on the inner walls of the net cages and is sequentially filled with porous gravel, straws and silt, the gauze is used for fixing the gravel, the straws and the silt inside the net cages so as to prevent the gravel, the straws and the silt from losing from the inside of the net cages, and a top cover is clamped at the top parts of the net cages;
s6: the plant absorption tank is used for sucking clear water absorbed by the absorption tank into the plant absorption tank, various emergent aquatic plants are planted in the plant absorption tank and absorb residual inorganic matters in the water, an overflow port of the plant absorption tank is arranged on the outer wall of one side of the plant absorption tank and is separated from the bottom 2/3-4/5, and supernatant of the plant absorption tank is discharged through the overflow port.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A buried biochemical sewage treatment method is characterized by comprising the following steps:
s1, performing solid-liquid separation, namely, sequentially arranging a plurality of layers of filter screens in an inclined manner from top to bottom to perform solid-liquid separation on sewage, arranging a solid recovery tank at the lower end of each filter screen, adjusting the pH value of the sewage to be neutral, and pumping the sewage into an anaerobic tank;
s2: anaerobic microorganism treatment, namely performing oxygen consumption treatment on sewage in an anaerobic tank, adding anaerobic microorganisms into the sewage, decomposing high-concentration organic substances in the sewage into inorganic substances, centrifugally stirring and precipitating the treated sewage, and recovering the anaerobic microorganisms from precipitates;
s3: aerobic microorganism treatment, namely introducing the sewage into an aerobic tank, adding aerobic microorganisms into the sewage after anaerobic reaction, introducing air and stirring to decompose organic substances remained in the sewage into inorganic substances, and recovering the aerobic microorganisms from precipitates after centrifugal precipitation;
s4: performing air floatation treatment, namely continuously introducing sewage into an air floatation tank, wherein an air floatation tank is arranged on the inner wall of the bottom of the air floatation tank, micro air outlet holes distributed at equal intervals are formed in the top of the air floatation tank, the bottom of the air floatation tank is connected with an air pump through a guide pipe, and a one-way air inlet valve is installed on the guide pipe in a butt-clamping manner to prevent the sewage from flowing back;
s5: the adsorption tank is internally provided with a plurality of containing net cages in the vertical direction, the top parts of the net cages are opened and used for containing adsorption materials, gauze is bonded on the inner walls of the net cages, and porous gravel, straws and silt are sequentially filled in the net cages;
s6: the plant absorption tank is used for sucking clarified water absorbed by the absorption tank into the plant absorption tank, various emergent aquatic plants are planted in the plant absorption tank and absorb residual inorganic matters in the water, and supernatant of the plant absorption tank is discharged through an overflow port.
2. The method for buried biochemical sewage treatment according to claim 1, wherein the mesh diameters of the multiple layers of filter screens decrease from top to bottom.
3. The method for treating buried biochemical sewage according to claim 1, wherein a stirring device is arranged in the floatation tank, a floating plate is arranged on the liquid level of the floatation tank, and a sewage pumping mechanism for pumping floatation foam is arranged on the floating plate.
4. The method for treating buried biochemical sewage according to claim 1, wherein the gauze is used for fixing the sand, the straw and the silt inside the net cage to prevent the sand, the straw and the silt from flowing out of the net cage, and a top cover is clamped at the top of the net cage.
5. The method for treating buried biochemical sewage according to claim 1, wherein the overflow port of the plant absorption tank is opened at a position which is far from the bottom 2/3-4/5 on the outer wall of one side of the plant absorption tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010025629.7A CN111056716A (en) | 2020-01-10 | 2020-01-10 | Buried biochemical sewage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010025629.7A CN111056716A (en) | 2020-01-10 | 2020-01-10 | Buried biochemical sewage treatment method |
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| CN111056716A true CN111056716A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010025629.7A Pending CN111056716A (en) | 2020-01-10 | 2020-01-10 | Buried biochemical sewage treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732280A (en) * | 2020-06-30 | 2020-10-02 | 浙江通恒环保科技有限公司 | Sewage purification process and equipment for producing green environment-friendly PET bottle flakes |
| CN114804542A (en) * | 2022-05-26 | 2022-07-29 | 中国科学院生态环境研究中心 | Ecological water filtering pond for water ecological restoration |
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| CN102241457A (en) * | 2010-05-11 | 2011-11-16 | 江苏清溢环保设备有限公司 | Integrated underground economical sanitary sewage treatment apparatus |
| CN102838250A (en) * | 2011-06-20 | 2012-12-26 | 扬州龙锦涂装环保设备有限公司 | Buried integrated domestic sewage treatment device |
| CN204550203U (en) * | 2015-04-10 | 2015-08-12 | 绵阳科勤环保科技有限公司 | A kind of buried microkinetic anaerobism waste disposal plant |
| CN207175693U (en) * | 2017-05-11 | 2018-04-03 | 北京顺鑫卓信环保科技有限公司 | Countryside sewage treatment equipment |
| CN109607950A (en) * | 2018-12-28 | 2019-04-12 | 陈德全 | Consumer waste infiltration liquid high-efficient treatment device and method |
-
2020
- 2020-01-10 CN CN202010025629.7A patent/CN111056716A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241457A (en) * | 2010-05-11 | 2011-11-16 | 江苏清溢环保设备有限公司 | Integrated underground economical sanitary sewage treatment apparatus |
| CN102838250A (en) * | 2011-06-20 | 2012-12-26 | 扬州龙锦涂装环保设备有限公司 | Buried integrated domestic sewage treatment device |
| CN204550203U (en) * | 2015-04-10 | 2015-08-12 | 绵阳科勤环保科技有限公司 | A kind of buried microkinetic anaerobism waste disposal plant |
| CN207175693U (en) * | 2017-05-11 | 2018-04-03 | 北京顺鑫卓信环保科技有限公司 | Countryside sewage treatment equipment |
| CN109607950A (en) * | 2018-12-28 | 2019-04-12 | 陈德全 | Consumer waste infiltration liquid high-efficient treatment device and method |
Non-Patent Citations (1)
| Title |
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| 韦编贤等: "《中等师范教育手册》", 30 April 1991, 广西师范大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732280A (en) * | 2020-06-30 | 2020-10-02 | 浙江通恒环保科技有限公司 | Sewage purification process and equipment for producing green environment-friendly PET bottle flakes |
| CN114804542A (en) * | 2022-05-26 | 2022-07-29 | 中国科学院生态环境研究中心 | Ecological water filtering pond for water ecological restoration |
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Application publication date: 20200424 |