CN114685011A - Distributed unpowered rural sewage treatment equipment - Google Patents
Distributed unpowered rural sewage treatment equipment Download PDFInfo
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- CN114685011A CN114685011A CN202210369752.XA CN202210369752A CN114685011A CN 114685011 A CN114685011 A CN 114685011A CN 202210369752 A CN202210369752 A CN 202210369752A CN 114685011 A CN114685011 A CN 114685011A
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- 239000010865 sewage Substances 0.000 title claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000004576 sand Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 31
- 230000008595 infiltration Effects 0.000 claims abstract description 25
- 238000001764 infiltration Methods 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000005325 percolation Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- 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
-
- 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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2209/14—NH3-N
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- 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
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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)
- Sewage (AREA)
Abstract
The invention discloses distributed unpowered rural sewage treatment equipment which consists of two tanks and comprises an oil-separation and sand-removal adjusting tank box-type main body, a sewage infiltration tank box-type main body, a sand-separation plate, combined packing, a water inlet and outlet, an air inlet and outlet, an alarm float rod, an overhaul cover plate and a water distributor. Sewage enters the oil separation and sand removal adjusting tank body from the water inlet, oil in the sewage floats on the surface of the sewage due to low density, gravel falls on the bottom of the tank through sedimentation, when the sewage is higher than the height of the sand separation plate, the sewage enters the water outlet area of the oil separation and sand removal adjusting tank from the sedimentation area, and the sand separation plate separates the gravel in the sand setting area. The invention provides the distributed rural domestic sewage integrated treatment equipment which is simple and compact in structure, small in occupied area, zero in energy consumption and high in treatment efficiency, and the equipment can be emptied once in 3-4 years, so that the energy is saved and the environment is protected.
Description
Technical Field
The invention relates to rural domestic sewage treatment equipment, in particular to distributed unpowered sewage treatment integrated equipment.
Background
Along with the development and construction of cities and towns, rural drainage systems are extremely imperfect. Many rural geographical positions are remote, and drainage system can not arrange whole planning district, and the drainage is not smooth, and domestic sewage inserts the municipal pipe network degree of difficulty greatly, causes rain and sewage confluence, and rainwater, sewage directly discharge into the water through roadside drainage open ditches or blind ditches not through handling. The environmental pollution caused by the domestic sewage of the villages and the towns is not only a potential safety hazard of a water source of the villages and the towns, but also aggravates the crisis of fresh water resources, so that the farmland irrigation cannot be effectively guaranteed, the survival and development of farmers are harmed, and the water environment is seriously influenced. By implementing sewage collection and on-site treatment in villages and towns, the pollution of sewage to underground water and the pollution of sewage direct discharge to river channels can be reduced, the ecological environment of the villages and the towns is improved, and the ecological sewage treatment system plays a positive role in the quality of life of people.
Chinese patent 200810015484.1 applies for a sewage treatment device, which is a powerless high-efficiency distributed domestic sewage treatment complete equipment. The equipment consists of a sedimentation tank, two or more than two anaerobic reactors connected in series and a sludge digestion reactor, wherein polypropylene elastic three-dimensional fillers are arranged in the middle parts of the anaerobic reactors and the sludge digestion reactor, and anaerobic microorganisms grow on the elastic three-dimensional fillers in a form of a biological film.
China patent 201821779110.2 discloses a distributed sewage treatment device with unpowered degassing unit, including the pond, the pond divide into disinfection pond and sedimentation tank, disinfection pond top is equipped with the medicament and stores the pond, medicament storage pond bottom is equipped with the through-hole, the disinfection pond top is equipped with first gear, first gear be equipped with a plurality of with through-hole assorted unloading hole, gear connection has the hydraulic turbine. According to the scheme, the disinfection powder can be automatically added without the help of a motor and under the action of water flow, the defect that the traditional medicine adding mode needs equipment such as the motor is overcome, and the disinfection powder can be completely added to rural distributed sewage treatment in a hydraulic condition without power.
At present, most of sewage treatment equipment utilizes a new material or an auxiliary device for feeding and driving, but for a rural drainage system, sewage is mostly distributed; however, the existing device has a plurality of complex structures, is inconvenient to install and has low sewage treatment efficiency; therefore, it is very important to design a convenient and decentralized sewage treatment device. Because rural sewage quality of water is inhomogeneous and the water yield is unstable, oil removal degritting adjusting tank equipment is arranged in front of sewage infiltration jar treatment facility for the grit of removal aquatic, the oil to play the stable water yield effect, reduce sewage infiltration district treatment load. The sewage flows into the sewage percolation tank from the oil separation and sand removal adjusting tank, the sewage is uniformly distributed in the filter material filtering area through the water distributor, and the sewage flows to the upper part and the lower part and is filtered by the combined filler to obtain water. The effluent can reach the first grade B standard of pollutant discharge Standard of urban Sewage treatment plants.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the distributed unpowered integrated sewage treatment equipment which is compact in structure, small in occupied area and simple and convenient to operate, and adopts combined filler for filtration and purification. The invention aims to provide the distributed rural domestic sewage integrated treatment equipment which is simple and compact in structure, small in occupied area, zero in energy consumption and high in treatment efficiency, can be emptied once in 3-4 years, and is energy-saving and environment-friendly.
The technical scheme of the invention is realized as follows: distributed unpowered rural sewage treatment equipment comprises an oil-separation and sand-removal adjusting tank box-shaped main body, a sewage infiltration tank box-shaped main body, a sand-separation plate, a combined filler, a water inlet, a water outlet, an air inlet, an air outlet, an alarm floating rod, an overhaul cover plate and a water distributor. The flowing direction of sewage in the integrated box-shaped main body is respectively an oil-separating sand-removing adjusting tank box-shaped main body and a sewage infiltration tank box-shaped main body in sequence. The outer side wall of the oil separation and sand removal adjusting tank is provided with a water inlet, external sewage enters the oil in the sewage through the water inlet and floats on the surface of the sewage due to lower density, gravel falls on the bottom of the tank through sedimentation, when the sewage is higher than the height of the sand separation plate, the sewage enters the water outlet area of the oil separation and sand removal adjusting tank through the sedimentation area, and the sand separation plate separates the gravel in the sand settling area. The oil separation and sand removal adjusting tank is communicated with the sewage infiltration tank through a water pipe, sewage flows into the sewage infiltration tank from the oil separation and sand removal adjusting tank through the water pipe, water is uniformly distributed above the mixed filler through a water distributor, and COD, BOD, ammonia nitrogen and SS are treated in the filler. A water outlet is arranged below the sewage infiltration tank to discharge sewage.
The combined filler is composed of a biological film and a honeycomb-shaped knot body, the honeycomb-shaped knot body is made of stable inorganic materials, the specific surface area is large, the growth of bacteria is facilitated, the porosity is large, and the air flow and the contact area of wastewater and biomass can be increased.
Further setting, rural sewage treatment integration equipment of unpowered, its characterized in that: the top of the oil separation and sand removal adjusting tank is provided with a first access hole, and the inlet end of the first access hole is provided with a first access cover plate.
And a second access hole is formed above the sewage infiltration tank, and a second access cover plate is arranged at the inlet end of the second access hole.
The left side of the top of the oil separation and sand removal adjusting tank is provided with an alarm floating rod, and the right side of the top of the oil separation and sand removal adjusting tank is provided with an air vent.
The sewage infiltration tank deck portion left side sets up inlet port downwardly extending to jar body bottom, the inlet port top sets up the hood, sewage infiltration tank deck portion right side sets up outlet port downwardly extending to jar body bottom.
The inlet tube downwardly extending to the height of the top end of the sand separation plate, and the water pipe downwardly extending to the height of the top end of the sand separation plate.
The invention has the beneficial effects that: the structure is simple, the device is placed in a buried mode, and the installation is convenient; an oil-separating and sand-removing adjusting tank is arranged in the sewage treatment tank, so that the storage of sewage before treatment is facilitated, a stable flow is formed, and the impact load resistance is strong; the sewage percolation tank box can carry out secondary treatment and purification on sewage, and carry out aerobic, anaerobic and filtering treatment through the biological membrane and the filter material, thereby further improving the sewage treatment efficiency; the bagged combined packing is beneficial to modularized installation and replacement, is convenient for later-stage equipment maintenance and reduces labor cost. An alarm floating rod is arranged above the equipment, so that the equipment can alarm in time when being blocked; the top of the box body is provided with an access hole, which is convenient for the replacement of the filler and the overhaul of the fault.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a sectional view of B-B in fig. 2.
In the figure: the device comprises an oil separation and sand removal adjusting tank 1, a sewage infiltration tank 2, a water inlet 101, a vent hole 102, a first access hole 103, a first access cover plate 1031, an alarm floating rod 104, a sand separation plate 105, an air inlet 106, an air cap 1061, a second access hole 107, a second access cover plate 1071 arranged at an inlet end, a water passing pipe 108, a water distributor 109, an air outlet 110, a filling support 111, a combined filler 112 and a water outlet 113.
Detailed Description
The technical scheme of the distributed unpowered rural sewage treatment equipment is further specifically described by referring to figures 1-4.
As shown in figures 1-4, the decentralized unpowered rural sewage treatment equipment consists of an oil separation and sand removal adjusting tank 1 and a sewage infiltration tank 2 which are communicated through a water pipe. The inlet tube 101 gets into and extends to sand-separating plate 105 peak downwards from oil removal sand removal regulation jar 1 left side top, and rivers follow the inlet tube and get into oil removal sand removal regulation jar 1, and oil in the sewage floats on the sewage surface because density is lower, and gravel falls and is separated in the tank bottoms by sand-separating plate through the sediment. The sewage plays the effect of oil removal and sand removal in the oil removal and sand removal adjusting tank 1, and the sewage is adjusted and stocked to play a role in stabilizing water flow. The sewage quantity is higher than the height of the water pipe, the sewage flows into the sewage percolation tank 2 from the oil separation and sand removal adjusting tank 1, the sewage is uniformly distributed on the upper part of the combined filler 112 through the water distributor 109, COD, BOD, ammonia nitrogen and SS components in the sewage are removed through the combined filler under the gravity action of the sewage, and the purified sewage is discharged along the water outlet 113.
As shown in fig. 4, a filling bracket 111 is disposed in the sewage infiltration tank 2, and a combined filler 113 is filled in the filling bracket 111, and the specific material of the combined filler is not repeated again, and is composed of an inorganic material and a biological membrane. The inorganic material has stable characteristics and is not decomposed along with time; the specific surface area and the porosity are larger, an effective environment is provided for the growth of bacteria and biomass, and the air flow and the contact between the wastewater and the biomass are increased. The inorganic filler can retain moisture, and the system can be stopped without raw water for a long time.
A vent hole 102 is arranged on the left side above the oil-separating and sand-removing adjusting tank 1 to ensure the stability of the air pressure in the tank body; the right side is provided with an alarm floating rod 104, the water level rises due to the pipeline congestion in the oil removal and sand removal adjusting tank 1, and the alarm floating rod 104 gives an alarm when the displacement is upward.
The top of the oil separation and sand removal adjusting tank 1 is provided with a first access hole 103, and the inlet end of the first access hole 103 is provided with a first access cover plate 1031. The sewage infiltration tank 2 top sets up manhole two 107, the two 107 entrance points of manhole set up two 1071 of access cover, the change of the filler of being convenient for and the maintenance of trouble.
The water outlet is 100mm higher than the bottom of the sewage infiltration tank 2, so that part of water is remained in the tank, the moist environment is kept, and the survival of biomass is facilitated.
If the depth of the water inlet pipe network is too deep, a lifting pump can be arranged in front of the water inlet 101 of the oil-separating and sand-removing adjusting tank 1 to lift the height of the water level of the inlet water; if the height of the water level of the outlet water needs to be adjusted, a lift pump can be arranged behind the water outlet 113.
The invention discloses distributed unpowered rural sewage treatment equipment, belonging to the technical field of rural domestic sewage treatment; the equipment is buried underground, and the treatment equipment consists of two tanks, and comprises an oil-separating and sand-removing adjusting tank box main body, a sewage infiltration tank box main body, a sand-separating plate, a combined filler, a water inlet, a water outlet, a wind inlet and a wind outlet, an alarm float rod, an overhaul cover plate and a water distributor. Sewage gets into oil removal sand removal surge tank body by the water inlet, and oil quality floats in the sewage surface because density is lower in the sewage, and the grit falls in the tank bottoms through deposiing, and when the sewage was higher than sand separation plate height, sewage got into oil removal sand removal surge tank water outlet zone by the settling zone, and sand separation plate separates the grit in the sand setting zone.
The above description is given for the purpose of illustrating the technical features and working principles of the present invention and the advantages thereof, and it is not to be taken in any way limiting, but rather is intended to cover all modifications and equivalents of the technical features of the present invention without departing from the scope of the present invention.
Claims (6)
1. Distributed unpowered rural sewage treatment device is characterized in that: comprises an oil-separating sand-removing adjusting tank (1) and a sewage infiltration tank (2); a water inlet pipe (101) is arranged at the top of the oil-separating and sand-removing adjusting tank (1), the water inlet pipe (101) is connected with an oil-separating and sand-removing bin (113), and a sand-separating plate (105) is arranged in the oil-separating and sand-removing bin (113); the top of the oil removal and sand removal adjusting tank (1) is provided with a water pipe (108), and the water pipe (108) is communicated with the sewage infiltration tank (2) and extends to the upper part of the uniform water distributor (109); a uniform water distributor (109) is arranged in the sewage infiltration tank (2), and a filling bracket (111) is arranged below the uniform water distributor (109); the combined filler (112) is arranged in the filling support (111), and the external water outlet pipe (113) is fixed below the right side of the sewage infiltration tank (2).
2. The decentralized unpowered rural sewage treatment plant according to claim 1, wherein: the top of the oil-separating and sand-removing adjusting tank (1) is provided with a first access hole (103), and the inlet end of the first access hole (103) is provided with a first access cover plate (1031).
3. The decentralized unpowered rural sewage treatment plant according to claim 1, wherein: and a second access hole (107) is arranged above the sewage infiltration tank (2), and a second access cover plate (1071) is arranged at the inlet end of the second access hole (107).
4. The decentralized unpowered rural sewage treatment plant according to claim 1, wherein: the left side of the top of the oil-separation and sand-removal adjusting tank (1) is provided with an alarm floating rod (104), and the right side of the top of the oil-separation and sand-removal adjusting tank (1) is provided with an air vent (102).
5. The decentralized unpowered rural sewage treatment plant according to claim 1, wherein: the left side of the top of the sewage infiltration tank (2) is provided with an air inlet hole (106) which extends downwards to the bottom of the tank body, an air cap (1061) is arranged above the air inlet hole (106), and one side of the top of the sewage infiltration tank (2) is provided with an air outlet hole (110) which extends downwards to the bottom of the tank body.
6. The decentralized unpowered rural sewage treatment plant according to claim 1, wherein: the water inlet pipe (101) extends downwards to the height of the top end of the sand separation plate (105), and the water through pipe (108) extends downwards to the height of the top end of the sand separation plate (105).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194447 | 2022-03-01 | ||
| CN2022101944471 | 2022-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114685011A true CN114685011A (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210369752.XA Pending CN114685011A (en) | 2022-03-01 | 2022-04-08 | Distributed unpowered rural sewage treatment equipment |
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| Country | Link |
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| CN (1) | CN114685011A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160107902A1 (en) * | 2012-07-20 | 2016-04-21 | ProAct Services Corporation | System and method for the treatment of wastewater |
| CN105819624A (en) * | 2016-04-28 | 2016-08-03 | 张东伟 | Modular sewage treatment device and method based on AF-bio-contact oxidation |
| CN111847771A (en) * | 2020-07-06 | 2020-10-30 | 浙江省环境工程有限公司 | Slaughter wastewater treatment method and system |
-
2022
- 2022-04-08 CN CN202210369752.XA patent/CN114685011A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160107902A1 (en) * | 2012-07-20 | 2016-04-21 | ProAct Services Corporation | System and method for the treatment of wastewater |
| CN105819624A (en) * | 2016-04-28 | 2016-08-03 | 张东伟 | Modular sewage treatment device and method based on AF-bio-contact oxidation |
| CN111847771A (en) * | 2020-07-06 | 2020-10-30 | 浙江省环境工程有限公司 | Slaughter wastewater treatment method and system |
Non-Patent Citations (4)
| Title |
|---|
| 中国建筑东北设计研究院有限公司 编著: "《建筑给水排水》", 31 March 2010, 辽宁科学技术出版社 * |
| 刘强 著: "《一种新型气浮—膜生物组合工艺》", 31 October 2016, 中国矿业大学出版社 * |
| 彭党聪 主编: "《水污染控制工程》", 30 April 2010, 冶金工业出版社 * |
| 李灵娜 著: "《农村生活污水处理工艺与技术应用》", 31 May 2019, 延边大学出版社 * |
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Application publication date: 20220701 |