CN111943462A - Adjusting pretreatment tank with water quality purification function - Google Patents
Adjusting pretreatment tank with water quality purification function Download PDFInfo
- Publication number
- CN111943462A CN111943462A CN202010964289.4A CN202010964289A CN111943462A CN 111943462 A CN111943462 A CN 111943462A CN 202010964289 A CN202010964289 A CN 202010964289A CN 111943462 A CN111943462 A CN 111943462A
- Authority
- CN
- China
- Prior art keywords
- water
- pretreatment tank
- area
- adjusting
- biological treatment
- 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.)
- Granted
Links
Images
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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
Abstract
The invention provides an adjusting pretreatment tank with a water quality purifying function, which integrates water collection amount adjustment and water quality purification by utilizing the effective volume of the adjusting pretreatment tank, has high volume utilization rate and low investment and operation cost, and endows the adjusting pretreatment tank with multiple functions. This regulation preliminary treatment pond includes: the device comprises a water inlet pipe, an electric flocculation area, an inclined plate sedimentation area, a biological treatment area, a water absorption area and a variable water level water outlet pipe connected with the biological treatment area and the water absorption area. The influent enters the bottom of the adjusting pretreatment tank through a water inlet pipe, after flocculation in an electrocoagulation region, sewage enters an inclined plate sedimentation region for sedimentation and separation to remove SS and phosphorus, and then enters a biological treatment region with dry and wet alternative natural reoxygenation in an upward flow manner to remove organic matters; and the effluent enters a water quantity adjusting and absorbing area, and is conveyed to a subsequent treatment structure after the water quantity is controlled by a submersible sewage pump in the water absorbing area. The effluent treated by the adjusting pretreatment tank can reach the secondary standard GB 18918 + 2002 of pollutant discharge Standard for municipal wastewater treatment plants, and can be directly discharged in some areas.
Description
Technical Field
The invention belongs to the technical field of sewage treatment and environmental protection, and particularly relates to an adjusting pretreatment tank with a water quality purifying function.
Background
The small-scale domestic sewage has large water quantity and water quality fluctuation, an adjusting pretreatment tank is required to be arranged to adjust the water quantity in order to ensure the stable operation of a sewage treatment structure, and the adjusting pretreatment tank has large volume and high investment due to the adjusting time of 8-12 hours.
The traditional adjusting pretreatment tank can adjust the water quantity, but has the problems of large tank capacity, large floor area, single function and no water quality purification function. Some adjusting pretreatment tanks disclosed at present mainly comprise an aeration adjusting pretreatment tank (application/patent number: CN201821551387. X), aeration is carried out by adopting an aeration device, and although the purifying capacity of the adjusting pretreatment tank is improved, the aeration energy consumption is high, the treatment cost is high, and the operation management is complex. The negative pressure jet mixing and adjusting pretreatment tank (application/patent number: CN 201821671526.2) achieves the purpose of mixing, stirring and homogenizing by adopting negative pressure jet, and the adjusting pretreatment tank basically has no purification function and still has the problems of single function and high energy consumption.
Disclosure of Invention
Aiming at the problems of large tank capacity and low utilization rate of an adjusting pretreatment tank in the existing small-scale sewage treatment system, the invention aims to provide the adjusting pretreatment tank with the water quality purification function, on the basis of adjusting the water quantity, the purification of the sewage is realized, the effective volume of the adjusting pretreatment tank is fully utilized, the water collection quantity adjustment and the water quality purification are integrated, the volume utilization rate is high, the investment and the operation cost are low, and the adjusting pretreatment tank is endowed with multiple functions.
The invention provides a regulating pretreatment tank with a water quality purifying function, which comprises: a water inlet pipe; an electric flocculation zone, an inclined plate sedimentation zone and a biological treatment zone are formed in the adjusting pretreatment tank; the water quantity adjusting water absorption area is formed in the adjusting pretreatment tank, and the water level changing water outlet pipe which is connected with the biological treatment area and the water absorption area is communicated with the biological treatment area and the water absorption area. The inlet water enters the bottom of the adjusting pretreatment tank through the water inlet pipe, the sewage enters the inclined plate sedimentation zone after flocculation in the electric flocculation zone, SS and phosphorus are removed through sedimentation and separation, and the sewage flows to a biological treatment zone with dry and wet alternative natural reoxygenation in an upward flow mode after sedimentation to be treated and organic matters are removed; and the effluent enters the water quantity adjusting and absorbing area through the water outlet pipe, and is controlled by a submersible sewage pump in the water absorbing area and conveyed to a subsequent treatment structure. The treated water of the adjusting pretreatment tank can reach the secondary standard GB 18918 + 2002 of pollutant discharge Standard of urban Sewage plant, and can be directly discharged in some areas. The technical scheme for realizing the purpose of the invention is as follows:
the invention provides a regulating pretreatment tank with a water quality purifying function, which comprises:
a water inlet pipe;
an electric flocculation zone, an inclined plate sedimentation zone and a biological treatment zone are formed in the adjusting pretreatment tank;
a water absorption area formed in the adjusting pretreatment tank is communicated with the biological treatment area and the water absorption area through a water level changing water outlet pipe;
the inlet water enters the bottom of the adjusting pretreatment tank through the water inlet pipe, the sewage enters the inclined plate sedimentation zone after flocculation in the electric flocculation zone, SS and phosphorus are removed through sedimentation and separation, and the sewage flows to a biological treatment zone with dry and wet alternative natural reoxygenation in an upward flow mode after sedimentation to be treated and organic matters are removed; and the effluent enters the water quantity adjusting and absorbing area through the water outlet pipe, and is controlled by a submersible sewage pump in the water absorbing area and conveyed to a subsequent treatment structure.
Further, an electrolysis system constitutes an electric flocculation zone, the electrolysis system comprising: the water inlet end of the outer power supply is vertically arranged on the anode, and the perforated metal plate arranged in parallel with the anode is used as the cathode.
Furthermore, the distance between the perforated metal plate as the anode and the perforated metal plate as the cathode is 2-10 m; the current density in the electrolysis system is 8-30 mA/cm2。
Furthermore, a plurality of parallel inclined plates forming an angle of 55-60 degrees with the horizontal plane are arranged in the inclined plate sedimentation area, and the surface load of the inclined plate sedimentation area is 9-11 m dry top year/(m)2·h)。
Further, the biological treatment area is positioned between the designed high water level and the designed low water level of the adjusting pretreatment tank, and fiber filler is filled between the designed high water level and the designed low water level; and (3) forming a dry-wet alternative state in the biological treatment area by adjusting the water level change of the pretreatment tank.
Further, the outlet pipe that connects biological treatment district and water absorption district is the variable water level outlet pipe, and it includes: the floating ball floats in the biological treatment area, and effluent flows into the water absorption area through the gravity of the floating ball and is conveyed to a subsequent treatment structure by a submersible sewage pump in the water absorption area.
And further, a mud bucket is arranged at the bottom of the adjusting pretreatment tank, and sludge in the mud bucket is discharged through a perforated mud pipe.
Compared with the prior art, the invention has the following characteristics:
integrating water quantity regulation and water quality purification, high volume utilization rate and investment saving
The invention integrates water quantity regulation and water quality purification (flocculation, sedimentation and biological treatment), improves the utilization rate of the effective volume of the regulation pretreatment tank, realizes the multifunction of the regulation pretreatment tank, solves the short plate with large space and single efficiency of the regulation pretreatment tank, and reduces the investment and the operation cost of sewage treatment.
② the internal biological treatment system has high treatment efficiency and low energy consumption
In the biological treatment zone, COD is removed by microorganisms enriched on the fibrous packing. Along with the change of the water level in the adjusting pretreatment tank, the biological treatment area is alternately in a dry/wet state, the natural reoxygenation process is strengthened, a proper growth environment is provided for aerobic microorganisms, the biodegradation of organic matters is promoted, and the aeration energy consumption is not needed.
High dephosphorization efficiency and simple operation of the built-in electrolysis system
PO of metal ions generated by an internal electrolysis system in an electric flocculation area and sewage4 3-And removing the insoluble precipitate generated by combination. Compared with the traditional chemical agent dephosphorization process, the electric flocculation dephosphorization process has high efficiency, does not need dosage and administration equipment, and is simple and convenient to operate.
Drawings
FIG. 1 is a plan view of a conditioning pretreatment tank with water purification function;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B of fig. 1.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1, 2 and 3, the adjusting pretreatment tank with water quality purification function comprises a water inlet pipe 1, an electric flocculation zone 2, an inclined plate sedimentation zone 3, a biological treatment zone 4, a water outlet pipe 5 and a water absorption zone 6. Wherein, inlet tube 1 sets up in the outside of adjusting pretreatment pond to communicate to adjusting pretreatment pond bottom region, electric flocculation district 2, inclined plate sedimentation district 3, biological treatment district 4 forms in adjusting pretreatment pond, and electric flocculation district 2, inclined plate sedimentation district 3, biological treatment district 4 are arranged by supreme down in proper order, the accessible sets up the perforation baffle between two adjacent regions and independently opens two adjacent regions, also can choose not to set up the perforation baffle, makes two adjacent regional direct contact. The water absorption zone 6 is also formed in the conditioning pretreatment tank, except that the water absorption zone 6 is arranged independently of the several zones of the electrocoagulation zone 2, the inclined plate sedimentation zone 3 and the biological treatment zone 4. The water outlet pipe 5 is communicated with the biological treatment area 4 and the water absorption area 6, and after the biological treatment area 4 is treated, the outlet water enters the water absorption area 6 through the water outlet pipe 5.
In the present embodiment, the water absorption section 6 is disposed on the side of the biological treatment section 4, specifically, on the side of the fibrous filler 13 of the biological treatment section 4.
When the adjusting pretreatment tank works, inlet water enters the bottom of the adjusting pretreatment tank through the water inlet pipe 1. At the bottom of the adjusting pretreatment tank, an electric flocculation area 2 is used for electric flocculation treatment; after the electrocoagulation, the sewage enters the inclined plate sedimentation zone 3 from the bottom for sedimentation; after the sedimentation, the sewage enters the biological treatment area 4 in an upward flow mode, finally flows into the water absorption area 6 through the water outlet pipe 5, and is conveyed to a subsequent treatment structure through a submersible sewage pump in the water absorption area 6.
In the adjusting pretreatment tank, phosphorus and SS pollutants are removed by means of the electric flocculation in the electric flocculation area 2. Specifically, an electrolytic system is formed in the electric flocculation area 2, and the electrolytic system consists of an external power supply 9, an anode 7 and a cathode 8, wherein the anode 7 and the cathode 8 are respectively connected with the positive pole and the negative pole of the external power supply 9. A perforated metal plate as an anode 7 is vertically arranged at the water inlet end, and a cathode 8 and the anode 7 are arranged in parallel, so that an electrolytic flocculation system is formed at the bottom of the conditioning pretreatment tank. The distance between the cathode 8 and the anode 7 is 2-10 cm, and the current density in the electrolysis system is 8-30 mA/cm2. After sewage enters an electric flocculation zone 2 through a water inlet pipe 1, phosphate radicals contained in the sewage are contacted with metal ions generated by an electrolysis system to generate flocs, and the flocs enter an inclined plate sedimentation zone 3.
The inclined plate sedimentation zone 3 is used for separating and removing suspended matters and flocs, the inclined plate sedimentation zone 3 consists of a series of parallel inclined plates 10 with the inclination angle alpha between 55 degrees to 60 degrees and the length of about 1m, the sewage flows upwards from the bottom, suspended particles and flocs in the sewage are precipitated on the inclined plates, precipitates precipitated on the inclined plates slide down to a mud bucket 11 installed at the bottom of an adjusting pretreatment tank under the action of gravity, the mud bucket 11 is positioned at the bottom of the inclined plate sedimentation zone and is positioned below an electrocoagulation zone 2, and settled sludge collected in the mud bucket 11 is periodically discharged through a perforated sludge discharge pipe 12.
The biological treatment area 4 is arranged between a designed high water level and a designed low water level of the adjusting pretreatment tank, the depth is about 1-2 m, and a fiber filler 13 for microorganism enrichment is filled in the biological treatment area to degrade organic matters in the sewage. The biological treatment area 4 can realize dry/wet alternation in the area where the fiber filler 13 is positioned by adjusting the change of the water level, so as to strengthen natural reoxygenation, provide a proper growth environment for aerobic microorganisms and promote the biodegradation of organic matters.
The outlet pipe 5 is a variable water level outlet pipe, and comprises: the floating ball 14 floats in the biological treatment area 4, the floating ball 14 is arranged at the water inlet of the flexible joint 13, the water inlet of the flexible joint 15 is driven to change along with the adjustment of the water level in the pretreatment tank by the buoyancy of the floating ball 14, and the sewage treated by the biological treatment area 4 can enter the water absorption area 6 through the water outlet pipe 5.
The specific process of utilizing the adjusting pretreatment tank with the water quality purifying function to realize water quantity adjustment and water quality purification is as follows:
s1: sewage enters the electric flocculation area 2 from a bottom water inlet pipe 1. The electrolytic system takes a perforated metal plate which is vertically arranged at the water inlet end as an anode 7 and extends into the electric flocculation area 2, takes a perforated metal plate which is arranged in parallel with the anode 7 as a cathode 8 and is connected with the anode and the cathode of an external power supply 9 to form electricityAnd (5) solving the system. In the electrolytic process, metal ions released by the anode 7 and phosphate radicals in the sewage form insoluble precipitates, and the insoluble precipitates are settled into a mud bucket 11 at the bottom of the adjusting pretreatment tank through an inclined plate area, so that the purpose of removing phosphorus and SS is realized. The current density of the electrolysis system is generally 8-30 mA/cm2The distance between the polar plates of the cathode and the anode is 2-10 cm.
S2: the sewage passing through the electrocoagulation zone 2 enters the inclined plate sedimentation zone 3 from the bottom. The inclined plate sedimentation zone 3 is composed of a series of parallel inclined plates 10 which have an inclination angle alpha of 55-60 degrees with the horizontal plane and a length of about 1m, water flows from bottom to top, suspended particles are settled on the inclined plates and slide down to enter a mud bucket 11 at the bottom of the adjusting pretreatment tank, and the suspended particles are periodically discharged through the perforated mud pipe 12. S3: the settled sewage enters the biological treatment zone 4 from the bottom. The biological treatment area 4 is provided with a water quantity adjusting area, the water quantity adjusting area is positioned between the designed high water level and the designed low water level of the adjusting pretreatment tank, the depth is about 1-2 m, and a fiber filler 13 is fixed between the water quantity adjusting area and the designed high water level and is used for enriching microorganisms to degrade organic matters. The biological treatment area 4 can realize dry/wet alternation in the area where the fiber filler 13 is positioned by adjusting the change of the water level, so as to strengthen natural reoxygenation, provide a proper growth environment for aerobic microorganisms and promote the biodegradation of organic matters.
S4: the effluent after biological purification flows into a water absorption area 6 through an outlet pipe 5 (the outlet pipe is a water level-variable outlet pipe and is composed of a floating ball floating on the liquid level and a flexible joint), and is conveyed to a subsequent treatment structure by a submersible sewage pump in the water absorption area 6. In some areas, the waste water can reach the secondary standard GB 18918-2002 of pollutant discharge standard of urban sewage plant.
The adjusting pretreatment tank integrates the functions of electrochemical flocculation, inclined plate precipitation, biodegradation and water quantity adjustment, has the functions of water quantity adjustment and water quality purification, and has the advantages of low treatment cost, easy management and the like.
The embodiments described above describe only some of the one or more embodiments of the present invention, but those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. A regulation pretreatment tank with a water quality purification function is characterized by comprising:
a water inlet pipe (1);
an electric flocculation zone (2), an inclined plate sedimentation zone (3) and a biological treatment zone (4) are formed in the adjusting pretreatment tank;
a water absorption area (6) formed in the adjusting pretreatment tank is communicated with the biological treatment area (4) and the water absorption area (6) through a water outlet pipe (5);
the influent water enters the bottom of the adjusting pretreatment tank through the water inlet pipe (1), sewage enters the inclined plate sedimentation zone (3) for sedimentation after being flocculated in the electric flocculation zone (2), and after sedimentation, the sewage flows to the biological treatment zone (4) in an upward flow mode for treatment;
and the effluent enters the water absorption area (6) through the water outlet pipe (5) and is conveyed to a subsequent treatment structure through a submersible sewage pump in the water absorption area (6).
2. The conditioning pretreatment tank with the water quality purification function according to claim 1, characterized in that: an electrolytic system is formed in the electric flocculation area (2), and comprises: the water-cooled water heater comprises an external power supply (9), an anode (7) and a cathode (8) which are respectively connected with the anode and the cathode of the external power supply (9), wherein a perforated metal plate which is vertically arranged at a water inlet end is used as the anode (7), and a perforated metal plate which is arranged in parallel with the anode (7) is used as the cathode (8).
3. The conditioning pretreatment tank with water quality purification function according to claim 2,
the distance between the perforated metal plate as the anode and the perforated metal plate as the cathode is 2-10 cm; the current density in the electrolysis system is 8-30 mA/cm2。
4. The conditioning pretreatment tank with the water quality purification function according to claim 1, wherein a plurality of parallel inclined plates forming an angle of 55-60 degrees with the horizontal plane are arranged in the inclined plate precipitation zone (3), and the surface load of the inclined plate precipitation zone (3) is 9-11 m through/(m) through labor2·h)。
5. The conditioning pretreatment tank with water quality purification function according to claim 1, characterized in that said biological treatment zone (4) is located between a designed high water level and a designed low water level of the conditioning pretreatment tank, and a fibrous packing (13) is filled therebetween; the water level change of the pretreatment tank is adjusted to form a dry-wet alternative state in the biological treatment area (4).
6. The adjusting pretreatment tank with the water quality purifying function according to claim 1, wherein the water outlet pipe (5) connecting the biological treatment area (4) and the water absorption area (6) is a water level-variable water outlet pipe, and comprises: the floating ball (14) floats in the biological treatment area (4), and effluent flows into the water absorption area (6) through the gravity of the floating ball (14) and is conveyed to a subsequent treatment structure by a submersible sewage pump in the water absorption area (6).
7. The conditioning pretreatment tank with water quality purification function according to claim 1,
a mud bucket (11) is arranged at the bottom of the adjusting pretreatment tank, and sludge in the mud bucket (11) is discharged through a perforated sludge discharge pipe (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324035 | 2019-12-20 | ||
| CN201911324035X | 2019-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111943462A true CN111943462A (en) | 2020-11-17 |
| CN111943462B CN111943462B (en) | 2022-06-21 |
Family
ID=73357456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010964289.4A Active CN111943462B (en) | 2019-12-20 | 2020-09-15 | Adjusting pretreatment tank with water quality purification function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111943462B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050109697A1 (en) * | 2003-10-03 | 2005-05-26 | Laurent Olivier | Waste water treatment system and process |
| CN1785852A (en) * | 2005-11-03 | 2006-06-14 | 河海大学 | Method of purifying city surface source pollution and river lake water by new type shore protection function member |
| CN1843981A (en) * | 2005-04-07 | 2006-10-11 | 同济大学 | Integrated process for treating sewage by suspended bio-carrier |
| CN103408183A (en) * | 2013-03-22 | 2013-11-27 | 施永祺 | Multi-stage water purification subsurface flow wetland treatment system and sewage treatment process |
| CN103979748A (en) * | 2014-06-06 | 2014-08-13 | 中国科学院城市环境研究所 | Unpowered biochemical pretreatment device with water quality and water quantity regulation function |
| US20140262999A1 (en) * | 2013-03-15 | 2014-09-18 | Chongqing University | Reactor for sewage treatment |
| CN104671421A (en) * | 2015-03-05 | 2015-06-03 | 吴永贵 | Wetting and drying alternation type sewage purification method |
| US20150166383A1 (en) * | 2012-03-28 | 2015-06-18 | Orescanin Visnja | Process and device for electrochemical treatment of industrial wastewater and drinking water |
| CN206447655U (en) * | 2017-01-23 | 2017-08-29 | 岭南新科生态科技研究院（北京）有限公司 | A kind of current wetland cleaning system of alternation of wetting and drying |
| GB201712563D0 (en) * | 2017-08-04 | 2017-09-20 | Prosper Env Tech Entpr Co Ltd | Method and apparatus for reducing secondary pollution and recovering water from dyeing and finishing wastewater for reuse |
| CN107522327A (en) * | 2017-09-30 | 2017-12-29 | 中铁第四勘察设计院集团有限公司 | The oxidation integrated papermaking wastewater treatment device of electric flocculation precipitate high grade |
| CN109607707A (en) * | 2018-11-27 | 2019-04-12 | 成都飞创科技有限公司 | A kind of low energy consumption high suspended matter waste water treatment process and processing unit |
-
2020
- 2020-09-15 CN CN202010964289.4A patent/CN111943462B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050109697A1 (en) * | 2003-10-03 | 2005-05-26 | Laurent Olivier | Waste water treatment system and process |
| CN1843981A (en) * | 2005-04-07 | 2006-10-11 | 同济大学 | Integrated process for treating sewage by suspended bio-carrier |
| CN1785852A (en) * | 2005-11-03 | 2006-06-14 | 河海大学 | Method of purifying city surface source pollution and river lake water by new type shore protection function member |
| US20150166383A1 (en) * | 2012-03-28 | 2015-06-18 | Orescanin Visnja | Process and device for electrochemical treatment of industrial wastewater and drinking water |
| US20140262999A1 (en) * | 2013-03-15 | 2014-09-18 | Chongqing University | Reactor for sewage treatment |
| CN103408183A (en) * | 2013-03-22 | 2013-11-27 | 施永祺 | Multi-stage water purification subsurface flow wetland treatment system and sewage treatment process |
| CN103979748A (en) * | 2014-06-06 | 2014-08-13 | 中国科学院城市环境研究所 | Unpowered biochemical pretreatment device with water quality and water quantity regulation function |
| CN104671421A (en) * | 2015-03-05 | 2015-06-03 | 吴永贵 | Wetting and drying alternation type sewage purification method |
| CN206447655U (en) * | 2017-01-23 | 2017-08-29 | 岭南新科生态科技研究院（北京）有限公司 | A kind of current wetland cleaning system of alternation of wetting and drying |
| GB201712563D0 (en) * | 2017-08-04 | 2017-09-20 | Prosper Env Tech Entpr Co Ltd | Method and apparatus for reducing secondary pollution and recovering water from dyeing and finishing wastewater for reuse |
| CN107522327A (en) * | 2017-09-30 | 2017-12-29 | 中铁第四勘察设计院集团有限公司 | The oxidation integrated papermaking wastewater treatment device of electric flocculation precipitate high grade |
| CN109607707A (en) * | 2018-11-27 | 2019-04-12 | 成都飞创科技有限公司 | A kind of low energy consumption high suspended matter waste water treatment process and processing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111943462B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936229B (en) | A kind of municipal sewage improvement A2/ O intensified denitrification and dephosphorization processes device and technique | |
| CN202390287U (en) | Internal iron-carbon UASB-SBR (Upflow Anaerobic Sludge Blanket-Sequencing Batch Reactor) coupling system for treatment of printing and dyeing wastewater | |
| CN213112940U (en) | Domestic sewage treatment system | |
| CN101530681A (en) | Seawater clarifier turbulence construction and clarifier thereof | |
| CN101913685B (en) | Novel magnetic separation sewage treatment unit | |
| CN201424418Y (en) | Waste disposal plant without energy dissipation | |
| CN110240349A (en) | One kind is with A2Integrated sewage treating apparatus based on/O technique | |
| CN111977782A (en) | Immersed HEBR bioreactor, sewage treatment system and method | |
| CN215627425U (en) | New rural domestic sewage treatment system based on MBR membrane reactor | |
| CN109293079B (en) | Low-energy-consumption aeration circulation clarification tank | |
| CN209193638U (en) | A kind of Small Towns advanced sewage treatment system of photovoltaic solar driving | |
| CN111943462B (en) | Adjusting pretreatment tank with water quality purification function | |
| CN101759331B (en) | System for treating sewage of preposition activated sludge-gallery type artificial wetland and method therefor | |
| CN214400152U (en) | Landscape water treatment system | |
| CN214457451U (en) | Integrated EC-AO-MBR water treatment equipment | |
| CN211226819U (en) | Rubber auxiliary agent effluent disposal system | |
| CN210796140U (en) | Domestic sewage treatment device | |
| CN209210490U (en) | A kind of adjustable multistage AO-MBBR process spent water processing unit of series | |
| CN113582432A (en) | Sewage treatment system and sewage treatment method | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN112408720A (en) | Garbage penetrating fluid treatment system | |
| CN201370981Y (en) | Seawater clarification pool with turbulent flow structure | |
| CN208308631U (en) | One kind is with A2Integrated sewage treating apparatus based on/O technique | |
| CN208700826U (en) | High efficient full automatic sewage disposal system | |
| CN109292980A (en) | A kind of adjustable multistage AO-MBBR process spent water processing unit of series and method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |