CN109626709A - River water body comprehensive purifying processing system - Google Patents

River water body comprehensive purifying processing system Download PDF

Info

Publication number
CN109626709A
CN109626709A CN201811343626.7A CN201811343626A CN109626709A CN 109626709 A CN109626709 A CN 109626709A CN 201811343626 A CN201811343626 A CN 201811343626A CN 109626709 A CN109626709 A CN 109626709A
Authority
CN
China
Prior art keywords
water
zone
water body
plate
dissolving
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
Application number
CN201811343626.7A
Other languages
Chinese (zh)
Inventor
程良文
詹红娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Huiyi Environmental Protection Technology Co Ltd
Original Assignee
Hubei Huiyi Environmental Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hubei Huiyi Environmental Protection Technology Co Ltd filed Critical Hubei Huiyi Environmental Protection Technology Co Ltd
Priority to CN201811343626.7A priority Critical patent/CN109626709A/en
Publication of CN109626709A publication Critical patent/CN109626709A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/10Packings; Fillings; Grids
    • C02F3/109Characterized by the shape
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention discloses a kind of river water body comprehensive purifying processing system, including water body lifting device, water depth processing unit, air floatation machine and automatic oxygen-dissolving apparatus, setting biologic packing material is used to remove the COD and total phosphorus in water body in water depth processing unit;The air floatation machine includes cabinet and dissolving, contact zone, Disengagement zone, clear water zone and settling zone are disposed in cabinet, contact zone is provided with molten gas release head, molten gas release head connects dissolving, in Disengagement zone bottom, bucket is set, setting Slag Scraping Device and scraper plate above Disengagement zone, clear water zone are arranged reflux line and are connected to dissolving;The water outlet of the air floatation machine is connected to automatic oxygen-dissolving apparatus again, and to treated, water body carries out dissolved oxygen to automatic oxygen-dissolving apparatus.Processing system of the invention can targetedly remove the organic and inorganic pollution in river water, improve the light transmittance of water body, and water outlet dissolved oxygen DO may be up to 8.0mg/L or more.

Description

River water body comprehensive purifying processing system
Technical field
The present invention relates to river regulation fields, and in particular to river water body comprehensive purifying processing system.
Background technique
Long river river ecological function is weak, and is discharged into phenomenon there are all kinds of lives, Fishery Pollution source, river water quality status according to It so allows of no optimist, river bottom mud blacks, and has Mud up-floating situation, and water body is in blackish green, poor fluidity, low visibility;In water Suspended matter and floater are more, and are easy to be deposited on bottom riverbed and form a large amount of bed muds, the pollution being enriched in bed mud Substance is easily re-released into water body and forms endogenous pollution.
Pollution source is divided into endogenous pollution and external source pollution.Endogenous pollution is mainly that the pollutant release of river bottom mud is made At some water body flows are poor, and the pollutant in river water is easily deposited on river bed, become bed mud, will be dirty in water body exchange Dye object is re-released into the endogenous pollution in water body and foring river.External source pollution is mainly due to sanitary sewage, Waste The extraneous contamination of the formation such as water, rainfall, rubbish object causes
Summary of the invention
The technical problem to be solved by the present invention is to the existing one kind that provides can integrate to smelly, nigrescence river water body The purification system of processing.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted by the present invention are as follows: river water body comprehensive purifying processing System, including water body lifting device, water depth processing unit, air floatation machine and automatic oxygen-dissolving apparatus, water body lifting device will River water body is promoted and is delivered in water depth processing unit, and setting biologic packing material is used in water depth processing unit Remove the COD and total phosphorus in water body;The air floatation machine includes cabinet and dissolving, and the first contact is disposed in cabinet Area, the first Disengagement zone, clear water zone, the second Disengagement zone, the second contact zone and settling zone, in the first contact zone and the second contact zone It is provided with molten gas release head, molten gas release head connects dissolving, bucket is arranged in Disengagement zone bottom, setting is scraped above Disengagement zone Slag machine and scraper plate, clear water zone are arranged reflux line and are connected to dissolving;The water outlet of the air floatation machine is connected to automatic dissolved oxygen dress again It sets, to treated, water body carries out dissolved oxygen to automatic oxygen-dissolving apparatus.
Further, the water depth processing unit includes contact-oxidation pool and multiphase loop module, in catalytic oxidation Bottom of pond portion is provided with microporous aeration disc, and suspension type filler, the bottom of the multiphase loop module are additionally provided in contact-oxidation pool Portion is connected to in contact-oxidation pool, and the multiphase loop module includes carriage body, and biologic packing material plate and exposure are provided in carriage body Device of air, the aerator, which is used to for the sewage of multiphase loop module bottom being up-shifted in air, to be fallen after rise after aeration to life Object filler plate, biologic packing material plate is in honeycomb and is obliquely installed, and its surface is provided with multiple lug bosses and is used for area increased, Reflux pump is additionally provided with below multiphase loop module, reflux pump connects reflux line for the sewage by the processing of multiphase loop module It is back to contact-oxidation pool, car top is provided with liquid discharge outlet, and multiple support columns are provided with below carriage body for holding up Carriage body, the scalable setting of support column, is additionally provided with sludge pipe in multiphase loop module.
Further, the aerator includes air lift water pipe and umbrella aeration head, and air lift water pipe is vertically arranged and stretches out Carriage body bottom, umbrella aeration are arranged on air lift water pipe and are located above biologic packing material plate;It is also provided with below biologic packing material plate There is aeration plate.
Further, the molten gas release head includes tube body, bubble liquid gas input channel is arranged in tube body, in bubble liquid gas Input channel front end is provided with drainage plate and forms tapered channel, and drainage front edge of board is provided with reflecting plate, reflecting plate and drainage plate Between, between reflecting plate and inboard wall of tube body be provided with gap, reflecting plate is provided with tapered recess close to the end of drainage plate, Other end outer peripheral surface is also tapered, and tapered recess is coaxially set with tube body, and gap forms rotation between reflecting plate and drainage plate Turn trough.
Processing system of the invention can targetedly remove the organic and inorganic pollution in river water, improve water The light transmittance of body, water outlet dissolved oxygen DO may be up to 8.0mg/L or more.
Detailed description of the invention
Fig. 1 is functional block diagram of the invention;
Fig. 2 is the structural schematic diagram of water depth processing unit in the present invention;
Fig. 3 is the structural schematic diagram of biologic packing material plate in the present invention;
Fig. 4 is the structural schematic diagram of air floatation machine in the present invention;
Fig. 5 is the structural schematic diagram of molten gas release head in the present invention.
Specific embodiment
A specific embodiment of the invention is illustrated below in conjunction with attached drawing.
It elaborates below in conjunction with specific embodiment of the attached drawing to invention.
As shown in Figure 1, river sewage comprehensive purifying processing system of the invention, including water body lifting device 1, water depth River water body is promoted and is delivered to water by processing unit 2, air floatation machine 3 and automatic oxygen-dissolving apparatus 4, water body lifting device 1 In body advanced treatment apparatus, mainly form by elevator pump, suspension arrangement, grid and with circuits etc..
Setting biologic packing material is used to remove the pollutants such as COD, TP in water body in water depth processing unit, specific to tie Structure is as shown in Figures 2 and 3 comprising contact-oxidation pool 22 and multiphase loop module 212,22 bottom of contact-oxidation pool are provided with micro- Hole aeration plate 211 is provided with suspension type filler 210 in contact-oxidation pool, and waste water is after leading portion pretreatment and Anaerobic Treatment Into the sewage disposal system.Debugging initial stage lacks dominant microflora in system.Sewage carries out of short duration first in contact-oxidation pool Stop oxygenation mixing is rapidly carried out by the aeration effect of microporous aeration disc.
The bottom of multiphase loop module 212 is connected to in contact-oxidation pool, naturally it is also possible to directly by multiphase loop module Be directly embedded in contact-oxidation pool, multiphase loop module includes carriage body 23, be provided in carriage body 23 biologic packing material plate 28 with And aerator, the aerator is used to for the sewage of multiphase loop module bottom being up-shifted in air to be fallen after rise after aeration To biologic packing material plate 28, biologic packing material plate 28 is in honeycomb and is obliquely installed.Cellular filler plate biofilm rate is high, can basis Sewage quality generates rapidly a large amount of dominant microfloras, and by the air lift of aerator, ringing, dominant bacteria is diffused to whole In a sewerage, accelerate the starting rate of whole system.In normal operation, under the action of aerator, sewage is by bottom It rises in air, then falls and return in sewage disposal system, which is repeated, and increases stop of the sewage in system Time.COD, BOD in microorganism fully degraded sewage enhance wastewater treatment efficiency, and the module is but also as sloping plate deposition Carrier reduces the load in post precipitation pond, while most of sludge is retained in modified form biological tank, improves in biological tank Microorganism concn, not only improve the treatment effect of sewage, sludge reduction also made by the aerobic sigestion of organic sludge, drop Low sludge discharge.The surface of filler plate 8 is additionally provided with multiple lug bosses 13 for area increased, as shown in Figure 3.
Reflux pump 27 is additionally provided with below multiphase loop module, reflux pump 27 connects reflux line 21 and will follow by multiphase For the sewage backflow of ring resume module to contact-oxidation pool 22, car top is provided with liquid discharge outlet 26, is arranged below carriage body There are multiple support columns 29 that can realize using air cylinder structure for holding up carriage body, the scalable setting of support column 29, support column Smoothly lifting.The structure can change the gap below biologic packing material plate, keep sewage largely in the gap, and keep away Exempt from liquid level and covers aerator.Sludge pipe (being not drawn into figure) is additionally provided in multiphase loop module.
Aerator includes air lift water pipe 25 and umbrella aeration head 24, and air lift water pipe is vertically arranged and stretches out carriage body bottom Portion extracts bottom sewage and getting into the air by umbrella aeration head and is aerated, then fallen after rise to biological modulated flitch, progress Microbial degradation, umbrella aeration are arranged on air lift water pipe and are located above biologic packing material plate.In order to increase aeration efficiency, in life Aeration plate is also equipped with below object filler plate.
As shown in figure 4, air floatation machine 3 includes cabinet 32 and dissolving 31, the first contact zone is disposed in cabinet 31 35, the first Disengagement zone, clear water zone 37, the second Disengagement zone, the second contact zone 36 and settling zone 28, in the first contact zone and second Contact zone is provided with molten gas release head 39, and molten gas release head 39 connects dissolving, and bucket 34, separation is arranged in Disengagement zone bottom Setting Slag Scraping Device and scraper plate above area, clear water zone are arranged reflux line 33 and are connected to dissolving;The water outlet of the air floatation machine is again It is connected to automatic oxygen-dissolving apparatus, water body carries out dissolved oxygen to automatic oxygen-dissolving apparatus to treated.
The specific structure of dissolved oxygen release head is as shown in figure 5, included tube body 391, the interior setting bubble liquid gas of tube body 391 input Channel 392 is provided with drainage plate 393 in 392 front end of bubble liquid gas input channel and forms tapered channel, in drainage front edge of board setting There is reflecting plate 395, between reflecting plate and drainage plate, is provided with gap between reflecting plate and inboard wall of tube body, reflecting plate 395 is close The end of drainage plate is provided with tapered recess 395, and other end outer peripheral surface is also tapered, and tapered recess is set with tube body coaxial line It sets, gap forms swivelling chute between reflecting plate and drainage plate.Microbubble liquid air-flow is squeezed in liquid cyclone turn trough, rotates, is cut It projects to form nano bubble through nano bubble relief hole, pipe is discharged by nano bubble and enters flotation tank.
In entire process flow end, automatic oxygen-dissolving apparatus is set.By water purifying device and water depth processing unit Two-stage process treated processing water outlet, by importing out automatic oxygen-dissolving apparatus, from its overflow hole flow into natural water.Automatic dissolving Oxygen device is overflow by having the overflow hole of certain roughness on the surface that water outlet is arranged to improve the dynamic characteristics of water body So that processing water outlet is flowed into the form of thread, the specific surface area that increase is contacted with air improves dissolved oxygen for the setting of discharge orifice. The guarantee of dissolved oxygen and mobility is increased for the rear end self-purification of water.Meanwhile promoting environmental landscape feature.
This system can realize that existing COD is reduced to 20mg/L by 50mg/L, up to 60% removal rate;Realize total phosphorus by 1mg/L It is reduced to 0.08mg/L, up to 90% or more removal rate;Water transparency handles the 1.5m in later period by increasing to less than 50cm, thus It realizes from black smelly water and is changed into limpid water body.

Claims (4)

1. a kind of river water body comprehensive purifying processing system, it is characterised in that: including water body lifting device, water depth processing dress It sets, river water body is promoted and is delivered to water depth processing by air floatation machine and automatic oxygen-dissolving apparatus, water body lifting device In device, setting biologic packing material is used to remove the COD and total phosphorus in water body in water depth processing unit;The air floatation machine packet Cabinet and dissolving are included, the first contact zone, the first Disengagement zone, clear water zone, the second Disengagement zone, second are disposed in cabinet Contact zone and settling zone are provided with molten gas release head in the first contact zone and the second contact zone, and molten gas release head connection is molten Bucket, setting Slag Scraping Device and scraper plate above Disengagement zone is arranged in Disengagement zone bottom in gas tank, and clear water zone is arranged reflux line and is connected to Dissolving;The water outlet of the air floatation machine is connected to automatic oxygen-dissolving apparatus again, and water body progress is molten to treated for automatic oxygen-dissolving apparatus Oxygen.
2. river water body comprehensive purifying processing system according to claim 1, it is characterised in that: the water depth processing Device includes contact-oxidation pool and multiphase loop module, catalytic oxidation bottom of pond portion is provided with microporous aeration disc, in catalytic oxidation Suspension type filler is additionally provided in pond, the bottom of the multiphase loop module is connected to in contact-oxidation pool, the multiphase circulation Module includes carriage body, biologic packing material plate and aerator is provided in carriage body, the aerator is for recycling multiphase The sewage of module bottom, which is up-shifted in air after aeration, to be fallen after rise to biologic packing material plate, and biologic packing material plate is in honeycomb and inclination Setting, and its surface is provided with multiple lug bosses for area increased, is additionally provided with reflux pump below multiphase loop module, returns For stream pump connection reflux line by the sewage backflow by the processing of multiphase loop module to contact-oxidation pool, car top is provided with liquid Body discharge outlet is provided with multiple support columns for holding up carriage body, the scalable setting of support column, in multiphase cyclic module below carriage body Sludge pipe is additionally provided in block.
3. river water body comprehensive purifying processing system according to claim 2, it is characterised in that: the aerator includes Air lift water pipe and umbrella aeration head, air lift water pipe are vertically arranged and stretch out carriage body bottom, and umbrella aeration is arranged in air lift water pipe Above and it is located above biologic packing material plate;Aeration plate is also equipped with below biologic packing material plate.
4. river water body comprehensive purifying processing system according to claim 1, it is characterised in that: the molten gas release head packet Tube body is included, bubble liquid gas input channel is set in tube body, bubble liquid gas input channel front end is provided with drainage plate and forms taper Channel is provided with reflecting plate in drainage front edge of board, is provided between reflecting plate and drainage plate, between reflecting plate and inboard wall of tube body Gap, reflecting plate are provided with tapered recess close to the end of drainage plate, and other end outer peripheral surface is also tapered, tapered recess with Tube body is coaxially set, and gap forms swivelling chute between reflecting plate and drainage plate.
CN201811343626.7A 2018-11-13 2018-11-13 River water body comprehensive purifying processing system Pending CN109626709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811343626.7A CN109626709A (en) 2018-11-13 2018-11-13 River water body comprehensive purifying processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811343626.7A CN109626709A (en) 2018-11-13 2018-11-13 River water body comprehensive purifying processing system

Publications (1)

Publication Number Publication Date
CN109626709A true CN109626709A (en) 2019-04-16

Family

ID=66067788

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811343626.7A Pending CN109626709A (en) 2018-11-13 2018-11-13 River water body comprehensive purifying processing system

Country Status (1)

Country Link
CN (1) CN109626709A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2062728U (en) * 1990-03-16 1990-09-26 谢绍舜 Integrated biochemistry processor for sewage
CN1618744A (en) * 2003-11-19 2005-05-25 彭云龙 River late water purification method and its special flowing aeration equipment
CN101293722A (en) * 2008-06-20 2008-10-29 云南天兰环保科技开发有限公司 Municipal sewage treatment system and equipment built on river
CN101426736A (en) * 2006-04-10 2009-05-06 美多拉环保公司 Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
CN101830533A (en) * 2010-05-31 2010-09-15 哈尔滨工业大学 V-shaped air floating filter with deslagging function
CN102372399A (en) * 2011-09-29 2012-03-14 河南中烟工业有限责任公司 Sewage treatment process
CN102774921A (en) * 2012-08-15 2012-11-14 北京英特环科水处理工程设备有限公司 Nanometer (NM) gas floating system device
CN105540825A (en) * 2016-02-03 2016-05-04 江西省三余环保节能科技有限公司 Fiber bundle bioreactor for sewage treatment
CN205275343U (en) * 2015-11-11 2016-06-01 江苏华达环境工程有限公司 Odd -numbered day is handled and is greater than 150 tons air supporting all -in -one
CN207774896U (en) * 2017-12-26 2018-08-28 上海双骏环保科技有限公司 A kind of biochemistry pool gasket packing fixing device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2062728U (en) * 1990-03-16 1990-09-26 谢绍舜 Integrated biochemistry processor for sewage
CN1618744A (en) * 2003-11-19 2005-05-25 彭云龙 River late water purification method and its special flowing aeration equipment
CN101426736A (en) * 2006-04-10 2009-05-06 美多拉环保公司 Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
CN101293722A (en) * 2008-06-20 2008-10-29 云南天兰环保科技开发有限公司 Municipal sewage treatment system and equipment built on river
CN101830533A (en) * 2010-05-31 2010-09-15 哈尔滨工业大学 V-shaped air floating filter with deslagging function
CN102372399A (en) * 2011-09-29 2012-03-14 河南中烟工业有限责任公司 Sewage treatment process
CN102774921A (en) * 2012-08-15 2012-11-14 北京英特环科水处理工程设备有限公司 Nanometer (NM) gas floating system device
CN205275343U (en) * 2015-11-11 2016-06-01 江苏华达环境工程有限公司 Odd -numbered day is handled and is greater than 150 tons air supporting all -in -one
CN105540825A (en) * 2016-02-03 2016-05-04 江西省三余环保节能科技有限公司 Fiber bundle bioreactor for sewage treatment
CN207774896U (en) * 2017-12-26 2018-08-28 上海双骏环保科技有限公司 A kind of biochemistry pool gasket packing fixing device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
史惠祥等: "《实用水处理设备手册》", 31 January 2000, 化学工业出版社 *
吴熊勋等: "《城市水环境污染控制》", 30 September 1989, 东南大学出版社 *
谢小青等: "《污水处理工》", 30 June 2011, 厦门大学出版社 *

Similar Documents

Publication Publication Date Title
CN207760200U (en) Kitchen waste sewage processing system
CN201292263Y (en) Vertical flow type aerobic gas float filter chamber
CN109626749A (en) Multifunctional integral sewage processor and its treatment process
CN209226783U (en) A kind of integrated rural sewage-treatment plant
CN202785899U (en) Sewage treatment device
CN105692885A (en) High pollution resistance membrane bioreactor and sewage treatment method
CN100431984C (en) Mixed aeration type biological treating system
CN109678301A (en) Each door type sewage disposal device
CN111115987B (en) quasi-IV water extraction standard reconstruction device for sewage and treatment process thereof
CN205556404U (en) Offshore platform sewage treatment unit
CN207986967U (en) A kind of pollutant fluxes for rainfall pumping station combine the unit
CN207375919U (en) A kind of integrated effluent disposal system with sludge drying pond
CN208485662U (en) In conjunction with the bio-contact oxidation sewage disposal system of multiphase loop module
CN109626709A (en) River water body comprehensive purifying processing system
CN202881047U (en) Flotation catalytic oxidation type sewage treatment device
CN108675453A (en) Villages and small towns decentralized type sewage treatment reactor and its sewage water treatment method
CN214571406U (en) Biochemical precipitation integrated equipment for treating organic wastewater
CN211255632U (en) Sewage treatment integration system suitable for rural area
CN210457857U (en) Sewage treatment system for sewage outfall of river regulation
CN210480920U (en) Air floatation system with sludge backflow function
CN209797614U (en) Sewage treatment reactor
CN209815900U (en) Backwashing filtering system of treatment device of multifunctional landscape water body
CN208667410U (en) A kind of domestic sewage processing system
JPH0516920B2 (en)
CN208218625U (en) A kind of ecological pond purification country sewage system

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

Application publication date: 20190416

RJ01 Rejection of invention patent application after publication