CN116177746A - Low-carbon-emission septic tank and sewage treatment process thereof - Google Patents
Low-carbon-emission septic tank and sewage treatment process thereof Download PDFInfo
- Publication number
- CN116177746A CN116177746A CN202310409228.5A CN202310409228A CN116177746A CN 116177746 A CN116177746 A CN 116177746A CN 202310409228 A CN202310409228 A CN 202310409228A CN 116177746 A CN116177746 A CN 116177746A
- Authority
- CN
- China
- Prior art keywords
- septic tank
- tank
- mbbr
- pipe
- stripping pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000005273 aeration Methods 0.000 claims abstract description 35
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 7
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 230000033116 oxidation-reduction process Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 1
- 230000000696 methanogenic effect Effects 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000005431 greenhouse gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C02F11/02—Biological treatment
-
- 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
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a low-carbon-emission septic tank and a sewage treatment process thereof. The low-carbon-emission septic tank comprises a septic tank, wherein a gas stripping pump is arranged in the septic tank, an MBBR tank is arranged at the upper part of the septic tank, an aeration fan is arranged at the upper part of the MBBR tank, a perforated aeration pipe is arranged at the bottom of the MBBR tank, one part of a gas outlet of the aeration fan is connected with an inlet of the perforated aeration pipe, the other part of the gas outlet of the aeration fan is connected with a gas inlet pipe of the gas stripping pump, a water inlet pipe of the MBBR tank is connected with a water outlet pipe of the gas stripping pump, and a water outlet pipe of the MBBR tank is connected with a water inlet pipe of the septic tank. According to the invention, a biological nitrification process is introduced on the basis of the traditional septic tank, and the nitrate produced by biological nitrification is utilized to inhibit the growth of methanogenic bacteria, so that the operation carbon emission of the septic tank is remarkably reduced, the whole device occupies small area, the operation effect is stable, the maintenance cost is low, and the device is very suitable for replacing the traditional septic tank.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a low-carbon-emission septic tank and a sewage treatment process thereof.
Background
The septic tank has been originally set for preventing pipeline blockage from the past century from birth, and has also played the role of reducing germ influence and organic pollution under the condition of imperfect pipe network and combined direct discharge. However, the septic tank can generate and discharge a large amount of methane, carbon dioxide and other room gases in the process of treating domestic sewage. With the popularization of urban sewage treatment plants, the work of septic tanks is canceled in the test points in partial areas of China, however, most areas canceling the septic tanks are urban newly built cells, urban built cells and rural areas still have large amounts of septic tanks in operation.
Since the anaerobic environment in the septic tank provides good conditions for the growth and propagation of methanogenic microorganisms, the carbon dioxide equivalent of methane is up to 28 kg CO 2 /kgCH 4 So the actual carbon emission of the septic tank in China is not small. How to reform the septic tank with low carbon, reduce the carbon emission, has important significance for the sustainable development of low carbon of sewage treatment infrastructure in China, the improvement of urban and rural livability and the health of the whole ecological system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a low-carbon-emission septic tank and a sewage treatment process thereof. According to the low-carbon-emission septic tank, the MBBR tank is additionally arranged on the basis of the traditional septic tank, the MBBR biological nitrification process is introduced, the nitrate produced by biological nitrification is utilized to inhibit the growth of methanogenic bacteria, and the whole device does not need an external medicament, so that the low-carbon operation of the septic tank is truly realized.
In order to achieve the technical purpose, the technical scheme adopted by the embodiment of the invention is as follows:
in a first aspect, an embodiment of the invention provides a low-carbon-emission septic tank, which comprises a septic tank, wherein a gas stripping pump is arranged in the septic tank, an MBBR tank is arranged on the upper part of the septic tank, an aeration fan is arranged on the upper part of the MBBR tank, a perforated aeration pipe is arranged at the bottom of the MBBR tank, one part of an air outlet of the aeration fan is connected with an inlet of the perforated aeration pipe, the other part of the air outlet of the aeration fan is connected with a gas stripping pump air inlet pipe, a water inlet pipe of the MBBR tank is connected with a water outlet pipe of the gas stripping pump, and a water outlet pipe of the MBBR tank is connected with a water inlet pipe of the septic tank.
Further, the septic tank is a three-grid septic tank, the first grid septic tank is close to the septic tank water inlet pipe, the third grid septic tank is close to the septic tank water outlet pipe, the second grid septic tank is located between the first grid septic tank and the third grid septic tank, and the air stripping pump is arranged in the third grid septic tank.
Further, a water inlet of the air lift pump water inlet pipe is positioned in the middle of the third septic tank, and the water inlet of the air lift pump water inlet pipe is positioned 5-10 cm below the liquid level in the septic tank; and the air inlet pipe of the air stripping pump is connected with the air outlet of the aeration fan.
Further, the volume of the MBBR tank is 1/25-1/50 of that of the septic tank, suspended filler is arranged in the MBBR tank for nitrification, the filler filling ratio of the MBBR tank is 30% -40%, DO is 4-6 mg/L, and the hydraulic retention time is 4-6 h.
In a second aspect, an embodiment of the present invention provides a sewage treatment process for the low carbon-emission septic tank, including the following steps:
step S1, domestic sewage flows into a septic tank from a septic tank water inlet pipe;
s2, sequentially pumping the sewage purified by the septic tank into an MBBR tank through a gas stripping pump water inlet pipe and a gas stripping pump water outlet pipe for nitrification treatment, wherein an aeration fan provides aeration for a perforated aeration pipe and a gas stripping pump air inlet pipe, and the pumping water quantity of the gas stripping pump is 10% -20% of the total sewage water inflow quantity;
s3, the effluent of the MBBR tank flows back to the water inlet end of the septic tank, the nitrate of the effluent and organic acid in the water enter the septic tank to perform denitrification reaction, organic matters required by anaerobic digestion of methanogens are consumed, oxidation-reduction potential ORP in the septic tank is increased, and the growth of the methanogens is inhibited;
and S4, discharging the domestic sewage treated by the septic tank from a water outlet pipe of the septic tank.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
(1) According to the low-carbon-emission septic tank disclosed by the invention, an MBBR tank (Moving-Bed Biofilm Reactor, abbreviated as MBBR) is additionally arranged on the basis of a traditional septic tank, an MBBR biological nitrification process is introduced, nitrate generated by biological nitrification is utilized to inhibit the growth of methanogenic bacteria, and the whole device does not need an external medicament, so that the low-carbon operation of the septic tank is truly realized.
(2) The volume of the added MBBR tank is only 1/25-1/50 of that of the septic tank, the whole device occupies small area, space is saved, suspended filler is arranged in the MBBR tank for nitrification, the nitrification rate is high, the whole device is buried, the nitrification effect is less influenced by seasonal variation, additional heating is not needed in winter, and the operation effect is stable.
(3) The low-carbon-emission septic tank utilizes the gas stripping pump to convey sewage, utilizes the aeration fan at the upper part of the MBBR tank to jointly provide a gas source for the gas stripping pump and the perforated aeration pipe at the bottom of the MBBR tank, has small overall power consumption, omits a water pump, is not easy to block, has simple structure and low maintenance cost, and is very suitable for replacing the traditional septic tank.
Drawings
Fig. 1 is a schematic structural view of a low carbon-emission septic tank according to an embodiment of the invention.
FIG. 2 is a daily average greenhouse gas emission and carbon emission of example 2 of the present invention.
FIG. 3 is a daily average greenhouse gas emission and carbon emission of comparative example 2 of the present invention.
Reference numerals illustrate: 1-a septic tank; a 2-MBBR pool; 3-an aeration fan; 4-perforating an aerator pipe; 5-a stripping pump; 6-a water inlet pipe of a gas stripping pump; 7-a gas stripping pump drain pipe; 8-an air inlet pipe of an air stripping pump; 9-a septic tank water inlet pipe; 10-a water outlet pipe of the septic tank; a water inlet pipe of the 11-MBBR tank; and a water outlet pipe of the 12-MBBR tank.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
as shown in figure 1, the low-carbon-emission septic tank comprises a septic tank 1, wherein a gas stripping pump 5 is arranged in the septic tank 1, an MBBR tank 2 is arranged on the upper portion of the septic tank 1, an aeration fan 3 is arranged on the upper portion of the MBBR tank 2, a perforated aeration pipe 4 is arranged at the bottom of the MBBR tank 2, a part of an air outlet of the aeration fan 3 is connected with an inlet of the perforated aeration pipe 4, the other part of the air outlet is connected with a gas stripping pump air inlet pipe 8, a MBBR tank water inlet pipe 11 is connected with a gas stripping pump water outlet pipe 7, and a MBBR tank water outlet pipe 12 is connected with a septic tank water inlet pipe 9.
The septic tank 1 is a three-grid septic tank, the first grid septic tank is close to the septic tank water inlet pipe 9, the third grid septic tank is close to the septic tank water outlet pipe 10, the second grid septic tank is positioned between the first grid septic tank and the third grid septic tank, and the air stripping pump 5 is arranged in the third grid septic tank.
The horizontal position of the water inlet pipe 6 of the air stripping pump 5 is positioned in the middle of the third septic tank, the water inlet of the water inlet pipe 6 of the air stripping pump is positioned 5-10 cm below the liquid level in the septic tank 1, and the air inlet pipe of the air stripping pump 5 is connected with the air outlet of the aeration fan 3.
Preferably, the volume of the MBBR tank 2 is 1/25-1/50 of the volume of the septic tank 1.
Example 2:
a sewage treatment process of a low-carbon-emission septic tank comprises the following steps:
step S1, domestic sewage flows into the septic tank 1 from the septic tank water inlet pipe 9;
step S2, sewage purified by the septic tank 1 is pumped into the MBBR tank 2 through a gas stripping pump water inlet pipe 6 and a gas stripping pump water outlet pipe 7 in sequence for nitrification treatment, an aeration fan 3 provides aeration for a perforated aeration pipe 4 and a gas stripping pump air inlet pipe 8, and the pumping water quantity of the gas stripping pump 5 is 10% -20% of the total sewage water inflow quantity;
wherein, the suspended filler is arranged in the MBBR tank 2 for nitration, the filler filling ratio of the MBBR tank 2 is 30% -40%, DO is 4-6 mg/L, and the hydraulic retention time is 4-6 h.
S3, the effluent of the MBBR tank 2 flows back to the water inlet end of the septic tank 1, the nitrate of the effluent and organic acid in the water enter into denitrification reaction, organic matters required by anaerobic digestion of methanogens are consumed, oxidation-reduction potential ORP in the septic tank is improved, and the growth of methanogens is inhibited;
and S4, discharging the domestic sewage treated by the septic tank 1 through a septic tank water outlet pipe (10).
The test was conducted according to the process shown in this example, and as shown in FIG. 2, the average daily greenhouse gas emissions and carbon emissions in this example are shown, and it can be seen from the figure that the low carbon-emission septic tank is CH daily 4 The average discharge amount is 81.1-232.5 mg/d, and the average value is 151.6 mg/d; daily CO 2 The average discharge amount is 153.1-376.8 mg/d, and the average value is 264.1 mg/d; the average daily carbon emission is 2.4-6.9 mg/d, and the average value is 4.5 mg/d.
A three-grid septic tank comprises a septic tank water inlet pipe 9 and a septic tank water outlet pipe 10, and compared with the embodiment 1, the three-grid septic tank does not comprise an MBBR tank 2, an aeration fan 3, a perforated aeration pipe 4, a gas stripping pump 5, a gas stripping pump water inlet pipe 6, a gas stripping pump water outlet pipe 7 and a gas stripping pump air inlet pipe 8.
In contrast to example 1, the three-compartment septic tank sewage treatment process does not include step S2 and step S3.
As shown in FIG. 3, the process shown in the comparative example is tested, and the average daily greenhouse gas emission and carbon emission of the comparative example are shown in the figure, and the gas detection shows that the septic tank is daily CH 4 The average discharge amount is 189.8-424.8 mg/d, and the average value is 302.2 mg/d; daily CO 2 The average discharge amount is 307.5-693.4 mg/d, and the average value is 525.6 mg/d; the average daily carbon emission is 5.7-12.6 mg/d, and the average value is 9.1 mg/d.
As can be seen by comparing the data in FIGS. 2 and 3, the daily CH in comparative example 2 is compared with example 2 4 The average emission is increased by 68.4% -147.7%, and the daily CO is increased 2 The average emission is increased by 42.4% -99.6%, the average daily carbon emission is increased by 50.5% -101.8%, and the invention shows that the biological nitrification technology is introduced on the basis of the traditional septic tank, and the nitrate produced by biological nitrification is utilized to inhibit the growth of methanogen, so that the carbon emission of the operation of the septic tank is obviously reduced, and the low-carbon operation of the septic tank is truly realized.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a low carbon row septic tank, its characterized in that, including septic tank (1), be provided with air stripping pump (5) in septic tank (1), the upper portion of septic tank (1) is provided with MBBR pond (2), the upper portion of MBBR pond (2) is provided with aeration fan (3), the bottom of MBBR pond (2) is provided with perforation aeration pipe (4), the import of perforation aeration pipe (4) is connected to the gas outlet of aeration fan (3) partly, and the other part is connected air stripping pump intake pipe (8), the inlet tube and the air stripping pump drain pipe (7) of MBBR pond (2) are connected, the outlet pipe and the septic tank inlet tube (9) of MBBR pond (2) are connected.
2. The low carbon range septic tank according to claim 1, wherein the septic tank (1) is a three-cell septic tank, a first cell septic tank is close to the septic tank inlet pipe (9), a third cell septic tank is close to the septic tank outlet pipe (10), a second cell septic tank is located between the first and third cell septic tanks, and the air stripping pump (5) is arranged in the third cell septic tank.
3. The low-carbon-emission septic tank according to claim 2, wherein a water inlet of a water inlet pipe (6) of a gas stripping pump is positioned in the middle of the third septic tank, and the water inlet of the water inlet pipe (6) of the gas stripping pump is positioned 5-10 cm below the liquid level in the septic tank (1); the air inlet pipe (8) of the air stripping pump is connected with the air outlet of the aeration fan (3).
4. The low-carbon-emission septic tank according to claim 1, wherein the volume of the MBBR tank (2) is 1/25-1/50 of the volume of the septic tank (1), suspended filler is arranged in the MBBR tank (2) for nitrification, the filler filling ratio of the MBBR tank (2) is 30% -40%, DO is 4-6 mg/L, and hydraulic retention time is 4-6 h.
5. A sewage treatment process applied to the low carbon-emission septic tank according to any one of claims 1 to 4, comprising the steps of:
step S1, domestic sewage flows into the septic tank (1) from a septic tank water inlet pipe (9);
s2, sequentially pumping the sewage purified by the septic tank (1) into the MBBR tank (2) through a gas stripping pump water inlet pipe (6) and a gas stripping pump water outlet pipe (7) for nitrification treatment, wherein an aeration fan (3) provides aeration for a perforated aeration pipe (4) and a gas stripping pump air inlet pipe (8), and the pumping water quantity of the gas stripping pump (5) is 10% -20% of the total sewage water inflow quantity;
s3, the effluent of the MBBR tank (2) flows back to the water inlet end of the septic tank (1), the nitrate of the effluent and organic acid in the inlet water are subjected to denitrification reaction, organic matters required by methanogens for anaerobic digestion are consumed, oxidation-reduction potential ORP in the septic tank is increased, and the growth of methanogens is inhibited;
and S4, discharging the domestic sewage treated by the septic tank (1) through a septic tank water outlet pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310409228.5A CN116177746A (en) | 2023-04-18 | 2023-04-18 | Low-carbon-emission septic tank and sewage treatment process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310409228.5A CN116177746A (en) | 2023-04-18 | 2023-04-18 | Low-carbon-emission septic tank and sewage treatment process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116177746A true CN116177746A (en) | 2023-05-30 |
Family
ID=86438722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310409228.5A Pending CN116177746A (en) | 2023-04-18 | 2023-04-18 | Low-carbon-emission septic tank and sewage treatment process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116177746A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070163A1 (en) * | 2000-12-13 | 2002-06-13 | Lambert Russell E. | Wastewater treatment apparatus and method |
| CN102101745A (en) * | 2011-01-11 | 2011-06-22 | 彭永臻 | Control method and method for treating sludge digestion liquid through sludge-fermentation-coupled denitrification |
| CN102276106A (en) * | 2011-05-18 | 2011-12-14 | 重庆大学 | Livestock and poultry manure wastewater processing method |
| CN105060622A (en) * | 2015-07-29 | 2015-11-18 | 吉林建筑大学 | Method for simultaneous removal of carbon, nitrogen and phosphorus in tri-sludge sewage and stabilization treatment of sludge |
| CN114873873A (en) * | 2022-06-17 | 2022-08-09 | 安徽省通源环境节能股份有限公司 | Carbon emission reduction integrated sewage treatment equipment and technology |
| CN114906997A (en) * | 2022-06-13 | 2022-08-16 | 北控水务(中国)投资有限公司 | Integrated septic tank capable of inhibiting methane generation and treatment method |
| CN115462447A (en) * | 2022-10-06 | 2022-12-13 | 中国科学院亚热带农业生态研究所 | Method for preparing sorghum straw whole-plant corn mixed storage forage grass |
-
2023
- 2023-04-18 CN CN202310409228.5A patent/CN116177746A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070163A1 (en) * | 2000-12-13 | 2002-06-13 | Lambert Russell E. | Wastewater treatment apparatus and method |
| CN102101745A (en) * | 2011-01-11 | 2011-06-22 | 彭永臻 | Control method and method for treating sludge digestion liquid through sludge-fermentation-coupled denitrification |
| CN102276106A (en) * | 2011-05-18 | 2011-12-14 | 重庆大学 | Livestock and poultry manure wastewater processing method |
| CN105060622A (en) * | 2015-07-29 | 2015-11-18 | 吉林建筑大学 | Method for simultaneous removal of carbon, nitrogen and phosphorus in tri-sludge sewage and stabilization treatment of sludge |
| CN114906997A (en) * | 2022-06-13 | 2022-08-16 | 北控水务(中国)投资有限公司 | Integrated septic tank capable of inhibiting methane generation and treatment method |
| CN114873873A (en) * | 2022-06-17 | 2022-08-09 | 安徽省通源环境节能股份有限公司 | Carbon emission reduction integrated sewage treatment equipment and technology |
| CN115462447A (en) * | 2022-10-06 | 2022-12-13 | 中国科学院亚热带农业生态研究所 | Method for preparing sorghum straw whole-plant corn mixed storage forage grass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113998783B (en) | Low-carbon nitrogen and phosphorus removal device and method for municipal sewage based on partial return sludge deep anaerobic treatment | |
| CN105481093A (en) | System and method for municipal wastewater treatment through continuous flow step-feed water partial nitrification/anaerobic ammonia oxidation | |
| CN107032506A (en) | It is segmented the apparatus and method that water outlet short distance nitration Anammox/ denitrifications handle sanitary sewage | |
| CN102531290B (en) | Method and device for sludge digestive fluid two-level biological denitrification | |
| CN102101718B (en) | Sludge hydrolysis acidification coupling denitrification device and treatment method thereof | |
| CN103183447A (en) | Treatment method of piggery wastewater | |
| CN207243560U (en) | Self-circulating anaerobic reactor | |
| CN105819567A (en) | Self-circulation anaerobic reactor | |
| CN105502664A (en) | Device using AB-ASBR reactors to start anaerobic ammonia oxidation | |
| CN103112948A (en) | Method for rapidly culturing autotrophic nitrogen removal granule sludge under conditions of low substrate concentration and high ascending velocity | |
| CN114262058A (en) | Double-circulation double-sedimentation-tank integrated biological treatment device and method | |
| CN201614333U (en) | Decentralized sewage treatment device | |
| CN112919736A (en) | Anaerobic denitrification and methane removal device and method, sewage treatment system and method | |
| CN101254979B (en) | Domestic sewage dispersant type anaerobic contact treatment technique | |
| CN204675952U (en) | The buried sewage treatment equipment that a kind of low noise sound pitch is integrated | |
| CN108128898B (en) | Diversion type biomembrane reactor and starting method thereof | |
| CN116177746A (en) | Low-carbon-emission septic tank and sewage treatment process thereof | |
| CN215798719U (en) | Efficient composite anaerobic treatment device | |
| CN214327268U (en) | MABR filler combined sewage treatment device | |
| CN201923879U (en) | Sludge hydrolysis, acidification, coupling and denitrification device | |
| CN202415319U (en) | System for removing carbon and nitrogen based on moving bed biofilm reactor | |
| CN204550203U (en) | A kind of buried microkinetic anaerobism waste disposal plant | |
| CN103739086B (en) | One realizes N in sludge-digestion liquid short distance nitration process 2o produces and the method utilized | |
| CN208648873U (en) | A kind of anaerobic reactor and organic printing and dyeing wastewater treatment system containing the reactor | |
| CN111908612A (en) | Artificial wetland coupling system for denitrification of urban sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230530 |