CN113998836A - MABR membrane sewage treatment system and treatment method - Google Patents
MABR membrane sewage treatment system and treatment method Download PDFInfo
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- CN113998836A CN113998836A CN202111255268.6A CN202111255268A CN113998836A CN 113998836 A CN113998836 A CN 113998836A CN 202111255268 A CN202111255268 A CN 202111255268A CN 113998836 A CN113998836 A CN 113998836A
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- sewage treatment
- mabr
- membrane
- biochemical reaction
- fan
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Links
- 239000012528 membrane Substances 0.000 title claims abstract description 69
- 239000010865 sewage Substances 0.000 title claims abstract description 47
- UEKDBDAWIKHROY-UHFFFAOYSA-L bis(4-bromo-2,6-ditert-butylphenoxy)-methylalumane Chemical compound [Al+2]C.CC(C)(C)C1=CC(Br)=CC(C(C)(C)C)=C1[O-].CC(C)(C)C1=CC(Br)=CC(C(C)(C)C)=C1[O-] UEKDBDAWIKHROY-UHFFFAOYSA-L 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 37
- 238000005273 aeration Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims description 25
- 230000001276 controlling effect Effects 0.000 claims description 12
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000011217 control strategy Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2301/04—Flow arrangements
-
- 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
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- 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)
- Activated Sludge Processes (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an MABR membrane sewage treatment system and a treatment method, relates to the technical field of sewage treatment, and aims to solve the problems that most of the existing sewage treatment equipment can meet the sewage treatment requirement, but cannot meet the requirements of improving the sewage treatment discharge standard, increasing the sewage treatment efficiency and simultaneously not greatly improving the sewage treatment cost. The technical scheme is that the device comprises at least one biochemical reaction tank, a filtering tank, a disinfection tank, an air supply fan and an automatic control device, wherein the air supply fan is connected with the biochemical reaction tank, a regulating area, the biochemical reaction area and a settling area are sequentially arranged in the biochemical reaction tank, the filtering tank is provided with filtering equipment, the disinfection tank is provided with disinfection equipment, an MABR aeration membrane component is arranged in the biochemical reaction area, a fan-shaped pipe water circulation device is connected onto the MABR aeration membrane component, a mud scraper is arranged at the bottom of the settling area, and the bottom of the settling area is in a slope shape and has a slope of 3-6%. The sewage is discharged through the disinfection area after sequentially passing through the regulating area, the biochemical reaction area, the settling area and the filtering area, so that the sewage treatment discharge standard is improved, and the sewage treatment efficiency is increased.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an MABR membrane sewage treatment system and a treatment method.
Background
The MABR can realize nitrification and denitrification at the same time, has an oxygen utilization rate close to 100 percent and extremely low energy consumption, and is a treatment process with great prospect developed in recent years. The sewage treatment principle of the MABR is to utilize an aeration membrane component to carry out bubble-free aeration on a microbial membrane and a water body growing on the surface of a polymer membrane, and oxygen and nutrients are utilized by microorganisms from two sides of a hollow fiber membrane respectively through the actions of concentration driving, microorganism adsorption and the like in the aeration process. The microorganisms decompose pollutants in the water into simple inorganic metabolites while utilizing nutrients, thereby purifying the water.
Although most of the existing sewage treatment equipment can meet the sewage treatment requirement, the traditional process also has the advantages of short construction period, mature technology and lower comprehensive input cost, but the existing sewage treatment equipment cannot meet the requirements of improving the sewage treatment discharge standard, increasing the sewage treatment efficiency and simultaneously not greatly improving the sewage treatment cost, so that the existing sewage treatment equipment needs to be further improved.
Disclosure of Invention
An object of the present invention is to provide an MABR membrane sewage treatment system having the effects of improving sewage treatment discharge standards and increasing sewage treatment efficiency.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a MABR membrane sewage treatment system, includes at least one biochemical reaction pond, filtering ponds, the air feed fan and the automatic control device that are connected with the biochemical reaction pond, regulating zone, biochemical reaction district, settling zone, disinfection district have set gradually in the biochemical reaction pond, be provided with MABR aeration membrane module in the biochemical reaction district, be connected with fan-shaped pipe water circle device on the MABR aeration membrane module, the settling zone bottom is provided with scrapes the mud ware, the bottom of settling zone is slope form and the slope is 3-6%.
The invention is further configured to: the mud scraper is in a mechanical driving plane type or a rotating type.
The invention is further configured to: the MABR aeration membrane component is a bubble-free aeration membrane with a silica gel coating of a microporous filter membrane.
The invention is further configured to: the fan-shaped pipe water circulation device comprises an air stripping device and a top fan-shaped pipe connected with the air stripping device.
The invention is further configured to: the top fan-shaped pipe comprises a plurality of hole array pipes which are distributed in a fan-blade shape.
The invention is further configured to: the filter tank is a micro filter tank, a cloth filter tank or a combined filter tank.
The invention is further configured to: the control strategy of the automatic control device comprises the following steps,
s1: the mud scraper is started regularly;
s2: controlling the flushing starting time of the membrane module;
s3: controlling the opening time of the gas stripping gas supply valve;
s4: comparing the water inlet flow and the water outlet flow, and controlling to start the filtering backwashing;
s5: controlling electrical equipment such as a water inlet pump, a fan, a sludge pump, a water outlet pump and the like.
Another object of the present invention is to provide a treatment method of an MABR membrane sewage treatment system, comprising the steps of,
s1: discharging the wastewater from the regulating area into a biochemical reaction area;
s2: air is supplied to the MABR aeration membrane component through an air supply fan, water circulates in the MABR aeration membrane component through a fan-shaped pipe water circulating device, sewage is fully contacted with activated sludge on the surface of the membrane, and pollutants in water are removed;
s3: the flushing membrane group is opened under the control of an electric valve of a branch pipe of the air supply fan so as to control the thickness of a sludge layer of the membrane group;
s4: after being treated by the membrane group, the wastewater enters a precipitation zone at the tail end, and overflows into a filter tank after being precipitated;
s5: the filtered effluent enters a disinfection area, and is discharged after reaching the standard after disinfection;
s6: the sludge scraper is started at regular time, and sludge in the settling zone is returned to the biochemical reaction zone;
s7: the sludge pump is started at regular time.
In conclusion, the beneficial technical effects of the invention are as follows:
1. through the arrangement of the biochemical reaction tank and the filtering tank, sewage is treated by the adjusting zone, the biochemical reaction zone and the settling zone in sequence and then is discharged by the disinfection zone, so that the sewage treatment discharge standard is improved, and the sewage treatment efficiency is increased;
2. through the arrangement of the MABR aeration membrane component, the anoxic and aerobic reactions and the sludge sedimentation are completed in the biochemical reaction tank, pollutants in water gradually descend along with the advancement of a treatment process, and the pollutants are removed by utilizing the short-cut nitrification and denitrification of the membrane aeration bioreactor;
3. through the arrangement of the fan-shaped pipe water circulation device, water enters the bottom of the air stripping device, water exits from the fan-shaped pipe at the top of the air stripping device, and the water flows circulate and reciprocate, so that the circulation of the water flow in the membrane module is promoted, and the water treatment effect is good.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
The invention discloses an MABR membrane sewage treatment system which comprises at least one biochemical reaction tank, a filter tank, an air supply fan connected with the biochemical reaction tank and an automatic control device. The filtering tank is a micro-filtering tank, a cloth filtering tank or a combined filtering tank, and the biochemical reaction tank is a long and narrow tank body, the width of the biochemical reaction tank is 1-5 meters, and the length of the biochemical reaction tank is 2-26 meters. The biochemical reaction tank is internally provided with a regulating area, a biochemical reaction area, a settling area and a sterilizing area in sequence.
An MABR aeration membrane component is arranged in the biochemical reaction area. The anoxic reaction, the aerobic reaction and the sludge precipitation are finished in the biochemical reaction tank, pollutants in water gradually descend along with the advancement of a treatment process, and the pollutants are removed by utilizing the short-cut nitrification and denitrification of the membrane aeration bioreactor. The MABR aeration membrane component is a bubble-free aeration membrane with a silica gel coating of a microporous filter membrane, has high oxygen transmission rate, and does not generate bubbles to increase the dissolved oxygen concentration in water.
The MABR aeration membrane component is connected with a fan-shaped pipe water circulating device which is favorable for water flow circulation in the membrane component. The bottom of the settling zone is provided with a mud scraper, and the bottom of the settling zone is in a slope shape with the slope of 3-6%. The mud scraper is a mechanical driving plane type or a rotating type. The fan-shaped pipe water circulation device comprises an air stripping device and a top fan-shaped pipe connected with the air stripping device, water enters the bottom of the air stripping device, water exits from the top fan-shaped pipe, and the circulation is repeated, so that the circulation of water flow in the membrane module is promoted. The top fan-shaped pipe comprises a plurality of hole array pipes which are distributed in a fan-blade shape.
The control strategy of the automatic control device comprises the following steps,
s1: the mud scraper is started regularly;
s2: controlling the flushing starting time of the membrane module;
s3: controlling the opening time of the gas stripping gas supply valve;
s4: comparing the water inlet flow and the water outlet flow, and controlling to start the filtering backwashing;
s5: controlling electrical equipment such as a water inlet pump, a fan, a sludge pump, a water outlet pump and the like.
The treatment method of the MABR membrane sewage treatment system comprises the following steps,
s1: discharging the wastewater from the regulating area into a biochemical reaction area;
s2: air is supplied to the MABR aeration membrane component through an air supply fan, water circulates in the MABR aeration membrane component through a fan-shaped pipe water circulating device, sewage is fully contacted with activated sludge on the surface of the membrane, and pollutants in water are removed;
s3: the flushing membrane group is opened under the control of an electric valve of a branch pipe of the air supply fan so as to control the thickness of a sludge layer of the membrane group;
s4: after being treated by the membrane group, the wastewater enters a precipitation zone at the tail end, and overflows into a filter tank after being precipitated;
s5: the filtered effluent enters a disinfection area, and is discharged after reaching the standard after disinfection;
s6: the sludge scraper is started at regular time, and sludge in the settling zone is returned to the biochemical reaction zone;
s7: the sludge pump is started at regular time.
The implementation principle of the embodiment is as follows:
s1: discharging the wastewater from the regulating area into a biochemical reaction area;
s2: air is supplied to the MABR aeration membrane component through an air supply fan, water circulates in the MABR aeration membrane component through a fan-shaped pipe water circulating device, sewage is fully contacted with activated sludge on the surface of the membrane, and pollutants in water are removed;
s3: the flushing membrane group is opened under the control of an electric valve of a branch pipe of the air supply fan so as to control the thickness of a sludge layer of the membrane group;
s4: after being treated by the membrane group, the wastewater enters a precipitation zone at the tail end, and overflows into a filter tank after being precipitated;
s5: the filtered effluent enters a disinfection area, and is discharged after reaching the standard after disinfection;
s6: the sludge scraper is started at regular time, and sludge in the settling zone is returned to the biochemical reaction zone;
s7: the sludge pump is started at regular time.
The sewage is discharged from the disinfection area after being treated by the adjusting area, the biochemical reaction area and the settling area in sequence, thereby improving the discharge standard of sewage treatment and increasing the sewage treatment efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. The utility model provides a MABR membrane sewage treatment system which characterized in that: including at least one biochemical reaction pond, filtering ponds, the air feed fan and the automatic control device that are connected with biochemical reaction pond, regulation district, biochemical reaction district, settling zone have set gradually in the biochemical reaction pond, the filtering ponds set up filtration equipment, clear water disinfection pond sets up disinfecting equipment, be provided with MABR aeration membrane module in the biochemical reaction district, be connected with fan-shaped pipe water circle device on the MABR aeration membrane module, the settling zone bottom is provided with scrapes the mud ware, the bottom of settling zone is slope form and the slope is 3-6%.
2. The MABR membrane sewage treatment system of claim 1, wherein: the mud scraper is in a mechanical driving plane type or a rotating type.
3. The MABR membrane sewage treatment system of claim 1, wherein: the MABR aeration membrane component is a microporous bubble-free aeration membrane with a silica gel coating.
4. The MABR membrane sewage treatment system of claim 1, wherein: the fan-shaped pipe water circulation device comprises an air stripping device and a top fan-shaped pipe connected with the air stripping device.
5. The MABR membrane sewage treatment system of claim 4, wherein: the top fan-shaped pipe comprises a plurality of hole array pipes which are distributed in a fan-blade shape.
6. The MABR membrane sewage treatment system of claim 1, wherein: the filter tank is a micro filter tank, a cloth filter tank or a combined filter tank.
7. The MABR membrane sewage treatment system of claim 1, wherein: the control strategy of the automatic control device comprises the following steps,
s1: the mud scraper is started regularly;
s2: controlling the flushing starting time of the membrane module;
s3: controlling the opening time of the gas stripping gas supply valve;
s4: comparing the water inlet flow and the water outlet flow, and controlling to start the filtering backwashing;
s5: controlling electrical equipment such as a water inlet pump, a fan, a sludge pump, a water outlet pump and the like.
8. The method of any of claims 1 to 7, wherein the MABR membrane sewage treatment system further comprises: comprises the following steps of (a) carrying out,
s1: the wastewater overflows from the regulating area into the biochemical reaction area;
s2: air is supplied to the MABR aeration membrane component through an air supply fan, water circulates in the MABR aeration membrane component through a fan-shaped pipe water circulating device, sewage is fully contacted with activated sludge on the surface of the membrane, and pollutants in water are removed;
s3: the flushing membrane group is controlled to be opened through an electric valve of a branch pipe of the air supply fan, and the thickness of a sludge layer of the membrane group is controlled;
s4: after being treated by the membrane group, the wastewater enters a precipitation zone at the tail end, and overflows into a filter tank after being precipitated;
s5: the filtered effluent enters a disinfection area, and is discharged after reaching the standard after disinfection;
s6: the sludge scraper is started at regular time, and sludge in the settling zone is returned to the biochemical reaction zone;
s7: the sludge pump is started at regular time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111255268.6A CN113998836A (en) | 2021-10-27 | 2021-10-27 | MABR membrane sewage treatment system and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111255268.6A CN113998836A (en) | 2021-10-27 | 2021-10-27 | MABR membrane sewage treatment system and treatment method |
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| Publication Number | Publication Date |
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| CN113998836A true CN113998836A (en) | 2022-02-01 |
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| CN202111255268.6A Pending CN113998836A (en) | 2021-10-27 | 2021-10-27 | MABR membrane sewage treatment system and treatment method |
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