CN105347563B - A kind of air supporting and filtering integral device - Google Patents
A kind of air supporting and filtering integral device Download PDFInfo
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- CN105347563B CN105347563B CN201510851201.7A CN201510851201A CN105347563B CN 105347563 B CN105347563 B CN 105347563B CN 201510851201 A CN201510851201 A CN 201510851201A CN 105347563 B CN105347563 B CN 105347563B
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- 238000001914 filtration Methods 0.000 title claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010865 sewage Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000000706 filtrate Substances 0.000 claims abstract description 22
- 238000005188 flotation Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 abstract description 7
- 239000002893 slag Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2101/32—Hydrocarbons, e.g. oil
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
本发明提供了一种气浮和过滤一体化装置，其能实现悬浮物去除率的大幅提高。其包括池体和溶气系统，其特征在于，池体包括气浮区和过滤区；气浮区包括通过隔板分隔而成的反应区、接触混合区和分离区，反应区和接触混合区通过布水管联通；过滤区设有污水收集槽以及通过管路依次联通的过滤池、过滤液储槽、管式膜过滤器和膜清液储槽，污水收集槽位于过滤池上方、并设有溢流口，污水收集槽与分离区通过管路联通。
The invention provides an air flotation and filtration integrated device, which can greatly improve the removal rate of suspended matter. It includes a pool body and a dissolved air system, characterized in that the pool body includes an air flotation area and a filter area; the air flotation area includes a reaction area, a contact mixing area and a separation area separated by a partition, and the reaction area and the contact mixing area It is connected through water distribution pipes; the filtration area is equipped with a sewage collection tank and a filter tank, a filtrate storage tank, a tubular membrane filter and a membrane liquid storage tank connected in sequence through the pipeline. The sewage collection tank is located above the filter tank and is equipped with The overflow port, the sewage collection tank and the separation area are connected through pipelines.
Description
技术领域technical field
本发明涉及污水处理设备，具体涉及一种气浮和过滤一体化装置。The invention relates to sewage treatment equipment, in particular to an air flotation and filtration integrated device.
背景技术Background technique
气浮是一种广泛应用于工业废水和城市污水治理的设备，其起到固液分离和者油水分离的作用。其工作原理是：在水中形成高度分散的微小气泡，粘附工业废水和城市污水中疏水的固体或液体颗粒，颗粒粘附气泡后，形成表观密度小于水的絮体而上浮到水面，形成浮渣层被刮除，从而实现固液或者油水分离的过程。但污水经过常规气浮设备后，仍有部分悬浮物残留，例如胶体态的COD和残余的大分子物质。Air flotation is a kind of equipment widely used in industrial wastewater and urban sewage treatment, which plays the role of solid-liquid separation and oil-water separation. Its working principle is: form highly dispersed tiny bubbles in water, adhere to hydrophobic solid or liquid particles in industrial wastewater and urban sewage, after the particles adhere to the bubbles, form flocs with an apparent density less than water and float to the water surface, forming The scum layer is scraped off to realize the process of solid-liquid or oil-water separation. However, after the sewage passes through the conventional air flotation equipment, there are still some suspended solids, such as colloidal COD and residual macromolecular substances.
发明内容Contents of the invention
针对上述问题，本发明提供了一种气浮和过滤一体化装置，其能进一步除去污水中的胶体态的COD和残余的大分子物质，提高悬浮物的除去效率。In view of the above problems, the present invention provides an integrated air flotation and filtration device, which can further remove colloidal COD and residual macromolecular substances in sewage, and improve the removal efficiency of suspended solids.
其技术方案是这样的，其包括池体和溶气系统，其特征在于，所述池体包括气浮区和过滤区；所述气浮区包括通过隔板分隔而成的反应区、接触混合区和分离区，所述反应区和所述接触混合区通过布水管联通；所述过滤区设有污水收集槽以及通过管路依次联通的过滤池、过滤液储槽、管式膜过滤器和膜清液储槽，所述污水收集槽位于所述过滤池上方、并设有溢流口，所述污水收集槽与所述分离区通过管路联通。Its technical scheme is such that it includes a pool body and a dissolved air system, characterized in that the pool body includes an air flotation area and a filter area; the air flotation area includes a reaction area separated by a partition, a contact mixing Zone and separation zone, the reaction zone and the contact mixing zone are communicated through water distribution pipes; the filter zone is provided with a sewage collection tank and a filter tank, a filtrate storage tank, a tubular membrane filter and a filter tank connected in sequence through pipelines. A membrane liquid storage tank, the sewage collection tank is located above the filter tank and is provided with an overflow port, and the sewage collection tank is communicated with the separation area through a pipeline.
进一步地，所述过滤区还包括调节池，所述膜清液储槽与调节池通过管路联通，所述池体侧部设有加药罐，所述加药罐包括絮凝剂加药罐、酸加药罐、碱加药罐和膜清洗药罐，所述絮凝剂加药罐的投料口与所述反应区通过管路联通，所述酸加药罐和碱加药罐的投料口与所述调节池通过管路联通，所述膜清洗药罐的投料口与管式膜过滤器通过管路联通。Further, the filtration area also includes a regulating tank, the membrane liquid storage tank and the regulating tank are communicated through pipelines, and a dosing tank is provided on the side of the pool body, and the dosing tank includes a flocculant dosing tank , acid dosing tank, alkali dosing tank and membrane cleaning medicine tank, the feeding port of the flocculant dosing tank is connected with the reaction zone through a pipeline, the feeding port of the acid dosing tank and the alkali dosing tank It communicates with the regulating pool through pipelines, and the feeding port of the membrane cleaning medicine tank communicates with the tubular membrane filter through pipelines.
进一步地，所述过滤液储槽的滤液出口、所述膜清液储槽通过管路与水泵的入水口联通，所述膜过滤器的污水入口和反冲洗口通过管路与水泵的出水口联通，所述水泵与所述过滤液储槽的滤液出口、所述膜清液储槽以及所述膜过滤器的污水入口和反冲洗口联通的管路上分别设有阀门，通过阀门的开闭控制水泵抽取膜清液储槽内的清水对管式膜过滤器进行反冲洗操作，以恢复管式膜过滤器的膜通量。Further, the filtrate outlet of the filtrate storage tank and the membrane clear liquid storage tank are communicated with the water inlet of the water pump through pipelines, and the sewage inlet and backwash port of the membrane filter are connected with the water outlet of the water pump through pipelines Unicom, the pipelines of the water pump and the filtrate outlet of the filtrate storage tank, the membrane clear liquid storage tank, the sewage inlet and the backwash port of the membrane filter are respectively provided with valves, and the opening and closing of the valves The water pump is controlled to extract the clear water in the membrane liquid storage tank to perform backwash operation on the tubular membrane filter, so as to restore the membrane flux of the tubular membrane filter.
进一步地，所述溢流口上设有溢流堰。Further, an overflow weir is provided on the overflow port.
采用本发明，污水在气浮区依次经过反应区、接触混合区和分离区，通过气浮法进行初步的固液分离和油液分离；进入过滤区后，依次经过过滤池、管式膜过滤器，进一步除去污水中的胶体态的COD和残余的大分子物质，从而提高悬浮物的除去效率。此外，通过在气浮原有结构的基础上，安装过滤池、过滤液储槽、管式膜过滤器和膜清液储槽，使得该装置能够在有限空间内集成多种处理功能，不但具有占地面积小，投资省，而且设备相对于常规气浮设备而言， SS、色度、重金属离子去除率均要明显提高。With the present invention, the sewage in the air flotation area passes through the reaction area, the contact mixing area and the separation area successively, and the preliminary solid-liquid separation and oil-liquid separation are carried out by the air flotation method; The device further removes the colloidal COD and residual macromolecular substances in the sewage, thereby improving the removal efficiency of suspended solids. In addition, on the basis of the original structure of the air flotation, the installation of a filter tank, a filtrate storage tank, a tubular membrane filter and a membrane clear liquid storage tank enables the device to integrate multiple processing functions in a limited space. It occupies a small area and saves investment. Compared with conventional air flotation equipment, the removal rate of SS, chromaticity, and heavy metal ions is significantly improved.
附图说明Description of drawings
图1为本发明的主视结构示意图。Fig. 1 is a schematic diagram of the front view structure of the present invention.
图2为本发明的俯视结构示意图。FIG. 2 is a schematic top view of the structure of the present invention.
图3为本发明的左视结构示意图。Fig. 3 is a left view structural schematic diagram of the present invention.
图4为本发明的右视结构示意图。Fig. 4 is a right view structure diagram of the present invention.
具体实施方式Detailed ways
如图1至图4所示，一种气浮和过滤一体化装置，其包括池体1和溶气系统，溶气系统包括溶气罐和高压泵，池体1包括气浮区和过滤区；气浮区包括通过隔板28、隔板5、隔板29分隔而成的反应区3、接触混合区4和分离区6，反应区3设有进水管2和搅拌器、并和接触混合区4通过布水管20联通，溶气罐的溶气水出水管与接触混合区4联通，分离区6上部设有刮渣机7以及于刮渣机7对应的渣槽9，渣槽9上设有导渣堰8；过滤区设有污水收集槽10以及通过管路依次联通的过滤池16、过滤液储槽21、管式膜过滤器14和膜清液储槽22，污水收集槽10位于过滤池16上方、并设有溢流口，溢流口上设有溢流堰11以调节溢流水位，过滤池16内设有滤料、滤帽和滤板，污水收集槽10与分离区6通过连通管19联通，连通管位于分离区6内的部位上设有集水管18，过滤液储槽21还通过管路、高压泵联通溶气罐，若干管式膜过滤器14布置在气浮池1的侧壁上，各管式膜过滤器14的污水入口141、反冲洗口143、清液出口142、污水出口144分别并联设置，管式膜过滤器14的污水出口通过管路与反应区3联通。As shown in Figures 1 to 4, an air flotation and filtration integrated device includes a pool body 1 and a dissolved air system, the dissolved air system includes a dissolved air tank and a high-pressure pump, and the pool body 1 includes an air flotation area and a filter area The air flotation zone includes a reaction zone 3, a contact mixing zone 4 and a separation zone 6 separated by a partition 28, a partition 5 and a partition 29, and the reaction zone 3 is provided with an inlet pipe 2 and an agitator, and is mixed with a contact Zone 4 is connected through the water distribution pipe 20, the dissolved air water outlet pipe of the dissolved air tank is connected with the contact mixing zone 4, and the upper part of the separation zone 6 is provided with a slag scraper 7 and a slag tank 9 corresponding to the slag scraper 7, and the slag tank 9 is A slag guide weir 8 is provided; the filtration area is provided with a sewage collection tank 10 and a filter tank 16, a filtrate storage tank 21, a tubular membrane filter 14, a membrane liquid storage tank 22, and a sewage collection tank 10 connected in sequence through pipelines. It is located above the filter tank 16 and is provided with an overflow port. The overflow port is provided with an overflow weir 11 to adjust the overflow water level. The filter tank 16 is provided with a filter material, a filter cap and a filter plate. The sewage collection tank 10 and the separation area 6 are communicated through the connecting pipe 19, the connecting pipe is located in the separation area 6 and is provided with a water collecting pipe 18, the filtrate storage tank 21 is also connected to the dissolved gas tank through pipelines and high-pressure pumps, and several tubular membrane filters 14 are arranged in the gas tank. On the side wall of the floating pool 1, the sewage inlet 141, the backwash outlet 143, the clear liquid outlet 142, and the sewage outlet 144 of each tubular membrane filter 14 are arranged in parallel respectively, and the sewage outlet of the tubular membrane filter 14 passes through the pipeline and reacts Area 3 Unicom.
过滤区还包括调节池23，膜清液储槽22与调节池23通过管路联通，调节池上设有出水管13，池体1侧部设有加药罐17，加药罐17包括絮凝剂加药罐、酸加药罐和碱加药罐，絮凝剂加药罐的投料口与反应区通过管路联通，酸加药罐和碱加药罐的投料口与调节池通过管路联通，所述膜清洗药罐（图中未示出）的投料口与管式膜过滤器通过管路联通。隔板12、隔板30十字相交，将过滤区分隔为过滤池16、过滤液储槽21、膜清液储槽22和调节池23。The filtration area also includes a regulating tank 23, the membrane liquid storage tank 22 and the regulating tank 23 are communicated through pipelines, the regulating tank is provided with an outlet pipe 13, and the side of the pool body 1 is provided with a dosing tank 17, and the dosing tank 17 includes a flocculant The dosing tank, the acid dosing tank and the alkali dosing tank, the feeding port of the flocculant dosing tank is connected to the reaction area through the pipeline, and the feeding port of the acid dosing tank and the alkali dosing tank is connected to the adjustment tank through the pipeline. The feeding port of the membrane cleaning medicine tank (not shown in the figure) communicates with the tubular membrane filter through pipelines. The partition 12 and the partition 30 intersect each other to divide the filtration area into a filter tank 16 , a filtrate storage tank 21 , a membrane clear liquid storage tank 22 and a regulating tank 23 .
过滤液储槽21的滤液出口、膜清液储槽22通过管路与水泵15的入水口联通，膜过滤器14的污水入口141和反冲洗口143通过管路与水泵15的出水口联通，水泵15与过滤液储槽21的滤液出口、膜清液储槽22以及膜过滤器14的污水入口141和反冲洗口143联通的管路上分别设有阀门25、27、24、26，通过阀门的开闭控制水泵抽取膜清液储槽内的清水对管式膜过滤器进行反冲洗操作，以恢复管式膜过滤器的膜通量，具体的，当管式膜过滤器的膜通量下降，关闭阀门24、25，打开阀门26、27，改变水流方向，通过水泵15抽取膜清液储槽22的清水对管式膜过滤器进行反冲洗，以恢复膜通量。清水自反冲洗口143流入后，对膜管进行反冲洗，冲洗产生的杂质、污水自污水出口144排出至反应区3。The filtrate outlet of the filtrate storage tank 21 and the membrane clear liquid storage tank 22 are communicated with the water inlet of the water pump 15 through the pipeline, and the sewage inlet 141 and the backwash port 143 of the membrane filter 14 are communicated with the water outlet of the water pump 15 through the pipeline. Valves 25, 27, 24, 26 are respectively arranged on the pipelines connecting the water pump 15 with the filtrate outlet of the filtrate storage tank 21, the membrane clear liquid storage tank 22, and the sewage inlet 141 of the membrane filter 14 and the backwash port 143. The opening and closing control of the water pump pumps the clear water in the membrane liquid storage tank to perform backwashing operation on the tubular membrane filter to restore the membrane flux of the tubular membrane filter. Specifically, when the membrane flux of the tubular membrane filter Descend, close the valves 24, 25, open the valves 26, 27, change the flow direction, pump the clear water from the membrane clear liquid storage tank 22 through the water pump 15 to backwash the tubular membrane filter to restore the membrane flux. After clean water flows in from the backwash port 143 , the membrane tube is backwashed, and the impurities and sewage generated by the flushing are discharged from the sewage outlet 144 to the reaction zone 3 .
工作过程如下：1、污水从进水管2进入反应区3，进行絮凝反应；2、通过布水管20进入接触混合区4，并在此和溶气水混合，使得微气泡能够有效的粘附在絮体颗粒表面，形成总密度小于水的颗粒；3、经过隔板5进入分离区6，并在此进行浮选分离，完成固液分离过程；4、初步处理的污水经过集水管18、连通管19进入污水收集槽10，通过溢流口流入含有滤料的过滤池16；5、初步处理的污水在过滤池16内过滤后进入过滤液储槽21；6、通过水泵15将过滤液储槽21内的污水打入管式膜过滤器14过滤，管式膜过滤器过滤后得到的清水进入膜清液储槽22，管式膜过滤器的污水回流进入反应区3；7、膜清液储槽22流止调节槽23，根据调节槽23内清水的PH值投放酸加药罐和碱加药罐中的酸、碱液，调节PH为中性。The working process is as follows: 1. Sewage enters the reaction zone 3 from the water inlet pipe 2 for flocculation reaction; 2. Enters the contact mixing zone 4 through the water distribution pipe 20, where it is mixed with dissolved air water so that the microbubbles can effectively adhere to the On the surface of the floc particles, particles with a total density less than water are formed; 3. Pass through the separator 5 and enter the separation zone 6, where flotation separation is carried out to complete the solid-liquid separation process; The pipe 19 enters the sewage collection tank 10, and flows into the filter tank 16 containing the filter material through the overflow port; 5, the preliminary treated sewage enters the filtrate storage tank 21 after being filtered in the filter tank 16; 6, the filtrate is stored by the water pump 15 The sewage in the tank 21 is poured into the tubular membrane filter 14 to filter, and the clear water obtained after the tubular membrane filter is filtered enters the membrane clear liquid storage tank 22, and the sewage of the tubular membrane filter flows back into the reaction zone 3; 7, the membrane clear liquid Liquid storage tank 22 flow-stop adjustment tank 23, according to the pH value of the clear water in the adjustment tank 23, puts acid, lye in the acid dosing tank and the alkali dosing tank, adjusts PH to be neutral.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510851201.7A CN105347563B (en) | 2015-11-30 | 2015-11-30 | A kind of air supporting and filtering integral device |
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| CN108911275A (en) * | 2018-09-06 | 2018-11-30 | 浙江东盛印染有限公司 | A kind of dyeing and printing sewage processing equipment and processing method |
| CN116495836A (en) * | 2023-06-12 | 2023-07-28 | 北京科技大学 | Tubular membrane high-speed filtration combined equipment for middle-high turbidity industrial wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202529925U (en) * | 2012-02-20 | 2012-11-14 | 无锡工源机械有限公司 | Air-flotation filtering integrated processing device |
| CN102976555A (en) * | 2012-11-30 | 2013-03-20 | 徐州工程学院 | Integrated air floatation-membrane bioreactor |
| CN103979706A (en) * | 2014-04-25 | 2014-08-13 | 轻工业环境保护研究所 | External circulation type pressurized dissolved air floatation-membrane separation water treatment method and device |
| CN205258153U (en) * | 2015-11-30 | 2016-05-25 | 无锡工源机械有限公司 | Air supporting and filtration integrated device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202529925U (en) * | 2012-02-20 | 2012-11-14 | 无锡工源机械有限公司 | Air-flotation filtering integrated processing device |
| CN102976555A (en) * | 2012-11-30 | 2013-03-20 | 徐州工程学院 | Integrated air floatation-membrane bioreactor |
| CN103979706A (en) * | 2014-04-25 | 2014-08-13 | 轻工业环境保护研究所 | External circulation type pressurized dissolved air floatation-membrane separation water treatment method and device |
| CN205258153U (en) * | 2015-11-30 | 2016-05-25 | 无锡工源机械有限公司 | Air supporting and filtration integrated device |
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