CN201411390Y - vibrating membrane bioreactor - Google Patents
vibrating membrane bioreactor Download PDFInfo
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- CN201411390Y CN201411390Y CN2009200446337U CN200920044633U CN201411390Y CN 201411390 Y CN201411390 Y CN 201411390Y CN 2009200446337 U CN2009200446337 U CN 2009200446337U CN 200920044633 U CN200920044633 U CN 200920044633U CN 201411390 Y CN201411390 Y CN 201411390Y
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- 239000012528 membrane Substances 0.000 title claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005374 membrane filtration Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 230000001877 deodorizing effect Effects 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 2
- 210000000959 ear middle Anatomy 0.000 claims 2
- 230000008676 import Effects 0.000 claims 2
- 238000013022 venting Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 29
- 238000004332 deodorization Methods 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 4
- 239000013043 chemical agent Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 239000012466 permeate Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009285 membrane fouling Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011956 best available technology Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001614 effect on membrane Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
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- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Separation Using Semi-Permeable Membranes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本实用新型涉及一种振动式膜生物反应器，其特征是它包括有预处理装置，膜生物反应器、生物除臭装置、振动装置和清水箱单元组成，所述预处理装置为设备本体中的生化区，膜生物反应器安装在设置本体中的膜滤区，膜生物反应器上安装有振动装置，生物除臭装置安装在设备本体的顶部，其底部的排放水口与设备本体内部相连通，清水箱单元为设备本体内的清水区。本实用新型以过膜压差20Kpa作为膜污染控制指标，自动进行膜组件的振动，加速膜污染物的脱落，延长了清洗周期，使原来6个月进行一次离线清洗延长到8－9个月清洗一次，从而节约化学药剂30－50％，使膜通量更加稳定，使MBR反应器运行周期更长并延长了膜的使用寿命。
The utility model relates to a vibrating membrane bioreactor, which is characterized in that it includes a pretreatment device, a membrane bioreactor, a biological deodorization device, a vibration device and a clean water tank unit, and the pretreatment device is a unit in the equipment body. The biochemical area, the membrane bioreactor is installed in the membrane filtration area in the setting body, the vibration device is installed on the membrane bioreactor, the biological deodorization device is installed on the top of the equipment body, and the discharge port at the bottom is connected with the inside of the equipment body , the clean water tank unit is the clean water area in the equipment body. The utility model uses a membrane pressure difference of 20Kpa as the membrane pollution control index, automatically vibrates the membrane components, accelerates the shedding of membrane pollutants, prolongs the cleaning cycle, and extends the offline cleaning once every 6 months to 8-9 months Cleaning once can save 30-50% of chemical agents, make the membrane flux more stable, make the MBR reactor run longer and prolong the service life of the membrane.
Description
技术领域 technical field
本实用新型涉及一种处理城市污水和工业废水的处理设备。The utility model relates to a treatment device for treating urban sewage and industrial waste water.
背景技术 Background technique
膜生物反应器(Membrane Bioreactor，MBR)作为一种新型高效的污水处理设备，日益受到各国的关注。MBR在城市污水和工业废水处理以及回用方面成为一种很有吸引力和竞争力的选择，并被视为“最佳实用技术”。但是，膜污染引起的膜分离性能下降则是大多数膜过程的主要操作故障。Membrane bioreactor (Membrane Bioreactor, MBR), as a new type of high-efficiency sewage treatment equipment, has attracted increasing attention from various countries. MBR has become an attractive and competitive option for municipal and industrial wastewater treatment and reuse, and is considered "best available technology". However, degradation of membrane separation performance due to membrane fouling is the major operational failure of most membrane processes.
目前MBR中和料液---污泥混合液的组成包括微生物群落、其代谢产物及所处理废水中的有机大分子、小分子、溶解物质及固体颗粒。每一种成分都会对膜形成污染，但主要来自大于膜孔径的微生物絮体。这种污染主要沉积在膜表面上，孔内堵塞及膜内表面大多都没有明显污染。悬浮生长型MBR的膜表面滤饼较厚，附着微生物较多，对MBR处理高浓度有机废水膜外表面为迅速沉积的污泥层，研究表明：在MBR中膜表面有机污染物含量较高，对膜阻力影响最大。这种污染物导致了膜渗透通量的下降，又遏制了水力剪切作用对污染层的脱除作用。粘附在膜面上的细菌和微生物还会直接或间接对膜进行降解，使膜结构变得疏松，严重影响膜的分离性能，并大大缩短了膜的寿命。At present, the composition of MBR neutralization feed liquid-sludge mixed liquid includes microbial community, its metabolites and organic macromolecules, small molecules, dissolved substances and solid particles in the treated wastewater. Each component can foul the membrane, but mainly from microbial flocs that are larger than the membrane pore size. This kind of pollution is mainly deposited on the surface of the membrane, and most of the clogging in the pores and the inner surface of the membrane are not obviously polluted. The filter cake on the membrane surface of the suspended growth type MBR is thicker, and there are more attached microorganisms. The outer surface of the membrane for MBR treatment of high-concentration organic wastewater is a rapidly deposited sludge layer. Studies have shown that: in MBR, the content of organic pollutants on the membrane surface is high. has the greatest effect on membrane resistance. This kind of pollutant leads to the decline of membrane permeation flux, and curbs the removal of the polluted layer by hydraulic shearing. Bacteria and microorganisms adhering to the membrane surface will directly or indirectly degrade the membrane, making the membrane structure loose, seriously affecting the separation performance of the membrane, and greatly shortening the life of the membrane.
当前，公知的膜污染主要采用清洗的方法解决，因为膜装置浸在曝气池中，所以在清洗上有一些特殊要求。目前MBR中膜的清洗有物理清洗和化学清洗两种。At present, the known membrane fouling is mainly solved by cleaning. Because the membrane device is immersed in the aeration tank, there are some special requirements for cleaning. At present, there are two kinds of cleaning of MBR membrane: physical cleaning and chemical cleaning.
(1)物理清洗：即以机械方法从膜表面上脱除污染物，大多以水(通常为透过液)，在低压高流速下流经膜面，透过液侧关闭出水阀，以使透膜压力为零。在水力对膜面形成的剪切力作用下，将膜面沉积物冲洗下来。(1) Physical cleaning: remove pollutants from the membrane surface by mechanical means, mostly water (usually the permeate) flows through the membrane surface at low pressure and high flow rate, and close the outlet valve on the permeate side to make the permeate The membrane pressure is zero. Under the action of the shear force formed by the hydraulic force on the membrane surface, the sediment on the membrane surface is washed down.
也可用水或空气在一定压力下，从透过侧反压过膜进入料液侧，以将沉积和堵塞在膜孔中的污染物冲下，料液侧保持一定的流速，以将这些冲洗下来的沉积物带走。也有对浸入式平板膜采用料液侧曝气(透过侧关闭抽吸水阀)的方法。此外，也有将浸入式平膜，采用将膜块从膜盒中抽出，用高压水或刷子对膜面进行冲洗也有效。Water or air can also be used under a certain pressure to back-press through the membrane from the permeate side and enter the feed liquid side to wash down the pollutants deposited and blocked in the membrane pores, and maintain a certain flow rate on the feed liquid side to flush these out. The sediment that comes down is carried away. There is also a method of aerating the liquid side of the submerged flat membrane (closing the suction valve on the permeable side). In addition, there are also submerged flat membranes. It is also effective to extract the membrane block from the membrane box and wash the membrane surface with high-pressure water or a brush.
(2)化学清洗：对浸入式MBR有原位(In line)及移位(Out line)两种清洗方法(2) Chemical cleaning: There are two cleaning methods for immersion MBR, in-situ (In line) and displacement (Out line).
①原位清洗和移位清洗方法及比较①In-situ cleaning and displacement cleaning methods and comparison
a.原位清洗如图1所示膜组件仍浸在曝气池中，清洗药水通过透过液管道，透过膜进入料液侧，使膜孔和膜表面沉积的有机物分解，使透膜阻力下降。a. In-situ cleaning As shown in Figure 1, the membrane module is still immersed in the aeration tank. The cleaning solution passes through the permeate pipe, penetrates the membrane and enters the feed liquid side, decomposes the organic matter deposited on the membrane pores and the membrane surface, and makes the permeable membrane The resistance drops.
b.移位浸渍清洗如图2所示将膜组件从曝气槽内吊出后，在药液内浸渍一定时间，再以透过液冲洗干净。b. Displacement immersion cleaning As shown in Figure 2, after the membrane module is lifted out of the aeration tank, it is soaked in the chemical solution for a certain period of time, and then rinsed with the permeate.
以上清洗方法都存在一些缺陷，如对浸入式平膜，采用将膜块从膜盒中抽出，用高压水或刷子对膜面进行冲洗都会造成装置停运，影响生产。如果采用化学清洗，一方面化学清洗要消耗化学药品，又会对水造成二次污染，另一方面化学清洗会给生产运行带来诸多不便。但是从恢复膜通量来看，化学清洗是必不可少的。There are some defects in the above cleaning methods. For example, for the submerged flat membrane, the membrane block is pulled out from the membrane box, and the membrane surface is washed with high-pressure water or a brush, which will cause the device to stop operating and affect production. If chemical cleaning is used, on the one hand, chemical cleaning will consume chemicals and cause secondary pollution to water; on the other hand, chemical cleaning will bring a lot of inconvenience to production and operation. But from the perspective of restoring membrane flux, chemical cleaning is essential.
发明内容 Contents of the invention
本实用新型的目的就是针对上述现有技术的不足，提供一种延长在线化学药剂冲洗及离线化学清洗的周期，可控制化学清洗频率，保持膜的透水速率和截留率的振动式膜生物反应器。The purpose of this utility model is to address the deficiencies of the above-mentioned prior art, to provide a vibrating membrane bioreactor that prolongs the cycle of on-line chemical agent flushing and off-line chemical cleaning, can control the frequency of chemical cleaning, and maintain the water permeability rate and retention rate of the membrane. .
本实用新型采用的技术方案如下：The technical scheme that the utility model adopts is as follows:
一种振动式膜生物反应器，其特征是它包括有预处理装置，膜生物反应器、生物除臭装置、振动装置和清水箱单元组成，所述预处理装置为设备本体中的生化区，膜生物反应器安装在设置本体中的膜滤区，生化区和膜滤区内均安装有曝气器，膜生物反应器上安装有振动装置，生物除臭装置安装在设备本体的顶部，其底部的排放水口与设备本体内部相连通，清水箱单元为设备本体内的清水区，设备本体内的生化区、膜滤区和清水区相互之间由隔板分隔。A vibrating membrane bioreactor is characterized in that it includes a pretreatment device, a membrane bioreactor, a biological deodorization device, a vibration device and a clean water tank unit, and the pretreatment device is a biochemical area in the equipment body, The membrane bioreactor is installed in the membrane filtration area of the device body, the biochemical area and the membrane filtration area are equipped with aerators, the membrane bioreactor is equipped with a vibration device, and the biological deodorization device is installed on the top of the equipment body. The discharge outlet at the bottom is connected to the inside of the equipment body, the clean water tank unit is the clean water area in the equipment body, and the biochemical area, membrane filtration area and clean water area in the equipment body are separated by partitions.
所述生物除臭装置包括装有填料的生物反应器和循环泵，生物反应器内部下方安装有带孔隔板，填料位于带孔隔板上方，带孔隔板下部区域侧壁设有废气入口，生物反应器底部设有排放水口，生物反应器内反应区的上部侧壁设有喷淋液进口，反应区顶部设有排气口，循环泵通过管路分别与喷淋液进口和出口相连。The biological deodorization device includes a bioreactor with packing and a circulation pump. A partition with holes is installed under the interior of the bioreactor. The filler is located above the partition with holes, and the side wall of the lower part of the partition with holes is provided with an exhaust gas inlet. , the bottom of the bioreactor is provided with a discharge port, the upper side wall of the reaction zone in the bioreactor is provided with a spray liquid inlet, and the top of the reaction zone is provided with an exhaust port, and the circulating pump is connected to the spray liquid inlet and outlet respectively through pipelines .
膜生物反应器采用浸入式平板膜，该膜板固定在由玻璃纤维增强的塑料框架上，塑料框架安装在振动支架内，振动支架上装有振动电机，振动支架下端的膜支脚通过振动弹簧安装在固定底座上。Membrane bioreactor adopts submerged flat membrane, the membrane plate is fixed on the plastic frame reinforced by glass fiber, the plastic frame is installed in the vibrating support, the vibration motor is installed on the vibrating support, and the membrane support at the lower end of the vibrating support is installed on the vibrating spring. fixed on the base.
本实用新型的有益效果有：The beneficial effects of the utility model have:
以过膜压差20Kpa作为膜污染控制指标，自动进行膜组件的振动，加速膜污染物的脱落，延长了清洗周期，使原来6个月进行一次离线清洗延长到8-9个月清洗一次，从而节约化学药剂30-50％，使膜通量更加稳定，使MBR反应器运行周期更长并延长了膜的使用寿命。同时该反应器还具有生物除臭功能。With the pressure difference across the membrane of 20Kpa as the membrane pollution control index, the vibration of the membrane module is automatically performed to accelerate the shedding of membrane pollutants, prolonging the cleaning cycle, and extending the offline cleaning once every 6 months to once every 8-9 months. Thereby saving 30-50% of chemical agents, making the flux of the membrane more stable, making the operation period of the MBR reactor longer and prolonging the service life of the membrane. At the same time, the reactor also has the function of biological deodorization.
附图说明 Description of drawings
图1为本实用新型的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the utility model.
图2为本实用新型生物除臭装置结构示意图。Fig. 2 is a structural schematic diagram of the biological deodorization device of the present invention.
图3为本实用新型振动装置结构示意图。Fig. 3 is a structural schematic diagram of the vibration device of the present invention.
图4为目前膜生物反应器原位清洗示意图。Figure 4 is a schematic diagram of current in-situ cleaning of membrane bioreactors.
图5为目前膜生物反应器移位清洗示意图。Figure 5 is a schematic diagram of the displacement cleaning of the current membrane bioreactor.
具体实施方式 Detailed ways
下面结合附图对本实用新型作进一步地说明：Below in conjunction with accompanying drawing, the utility model is further described:
如图1所示，本实用新型设备本体1安装有曝气器17的曝气槽分成缺氧区和好氧区，缺氧区本实新型中的生化区18，它作为污水处理的预处理装置。膜生物反应器2(MBR膜)安装在好氧区内，好氧区亦为滤膜区19。由于设置本体1内的曝气槽分为缺氧区和好氧区，因而该反应器具有脱氮功能，可以除去污水的氨氮。设备本体1内由隔板17将其分为生化区18、膜滤区19和清水区20，清水区20作为污水处理的清水箱单元。在设备本体1的顶部安装有生物除臭装置8，如图2所示，生物除臭装置8包括装有填料12的生物反应器9和循环泵10，生物反应器9内部下方安装有带孔隔板11，填料12位于带孔隔板11上方，带孔隔板11下部区域侧壁设有废气入口13，生物反应器9底部设有排放水口14，排放水口14与设备本体1内部相连通。生物反应器9内反应区的上部侧壁设有喷淋液进口15，反应区顶部设有排气口16，循环泵10通过管路分别与喷淋液进口15和排放水口14相连，并将营养液从喷淋液进口15喷淋在反应区的填料12上。在废气入口13、排放水口14、喷淋液进口15和排气口16处均设有阀门。As shown in Figure 1, the utility model equipment body 1 is equipped with the aeration tank of aerator 17 and is divided into anoxic zone and aerobic zone, and the anoxic zone is biochemical zone 18 in the utility model, and it is as the pretreatment of sewage treatment device. The membrane bioreactor 2 (MBR membrane) is installed in the aerobic zone, and the aerobic zone is also the filter membrane zone 19 . Since the aeration tank in the main body 1 is divided into anoxic zone and aerobic zone, the reactor has a denitrification function and can remove ammonia nitrogen in sewage. The equipment body 1 is divided into a biochemical area 18, a membrane filtration area 19 and a clean water area 20 by a partition 17, and the clean water area 20 is used as a clean water tank unit for sewage treatment. A biological deodorization device 8 is installed on the top of the equipment body 1, as shown in Figure 2, the biological deodorization device 8 includes a
如图3所示，本实用新型中膜生物反应器2采用浸入式平板膜，该膜板固定在由玻璃纤维增强的塑料框架上，塑料框架安装在振动支架3内，振动支架3上装有振动电机4，振动电机4带动膜生物反应器的膜组件进行高频振动。上述振动支架3下端的膜支脚5通过振动弹簧6安装在固定底座7上，以保证振动效果。As shown in Figure 3, the membrane bioreactor 2 of the utility model adopts the submerged flat membrane, and the membrane plate is fixed on the plastic frame reinforced by glass fiber, and the plastic frame is installed in the vibrating
本实用新型在设备本体1内膜滤区靠生化区一侧设有污泥回流泵，靠清水区一侧设有提升泵，污泥回流泵的作用是将好氧区的部分污泥回流至缺氧区，进行硝化和反硝化，以进一步增加脱磷除氮效果，提升泵的作用是通过抽吸产生负压，通过MBR膜把好氧区的水分离出来。在清水区还设有回用泵，其作用是将清水区的清水提升到用水点。The utility model is equipped with a sludge return pump on the side of the inner membrane filter area of the equipment body 1 near the biochemical area, and a lift pump on the side of the clean water area. The function of the sludge return pump is to return part of the sludge in the aerobic area to the In the anoxic zone, nitrification and denitrification are carried out to further increase the effect of dephosphorization and nitrogen removal. The function of the lift pump is to generate negative pressure through suction and separate the water in the aerobic zone through the MBR membrane. There is also a reuse pump in the clear water area, whose function is to raise the clear water in the clear water area to the water point.
本实用新型的工作过程为：污水经过设备本体内缺氧区反应后到达好氧区，通过膜生物反应器的过滤作用后到达清水区，再由回用泵提升到用水点。膜生物反应器上安装的振动电机根据设定的膜压差＜20Kpa作为膜污染控制指标，自动进行振动，将沉积和堵塞在膜生物反应器膜孔中的污染物振动下来，而料液侧保持一定的流速，以将这些种洗下来的沉积物带走。The working process of the utility model is as follows: the sewage reaches the aerobic area after being reacted in the anoxic area in the equipment body, and reaches the clean water area after passing through the filtration of the membrane bioreactor, and then is lifted to the water point by the recycling pump. The vibration motor installed on the membrane bioreactor automatically vibrates according to the set membrane pressure difference <20Kpa as the membrane pollution control index, and vibrates down the pollutants deposited and blocked in the membrane pores of the membrane bioreactor, while the feed liquid side Maintain a certain flow rate to take away these washed down sediments.
本实用新型振动装置将沉积在膜孔中的污染物及时地振动下来，延长了清洗周期，使原来6个月进行一次离线清洗延长到8-9个月清洗一次，从而节约化学药剂30-50％。The vibration device of the utility model vibrates the pollutants deposited in the membrane holes in time, prolongs the cleaning period, and extends the off-line cleaning once every 6 months to once every 8-9 months, thereby saving 30-50 %.
本实用新型涉及的其它未说明部分与现有技术相同。Other unexplained parts involved in the utility model are the same as the prior art.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815842A (en) * | 2012-09-01 | 2012-12-12 | 李泽 | Sewage continuous biological treatment method and device |
| CN106186298A (en) * | 2016-09-14 | 2016-12-07 | 苏州科特环保股份有限公司 | A kind of integrated film bioreactor device of improvement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815842A (en) * | 2012-09-01 | 2012-12-12 | 李泽 | Sewage continuous biological treatment method and device |
| CN106186298A (en) * | 2016-09-14 | 2016-12-07 | 苏州科特环保股份有限公司 | A kind of integrated film bioreactor device of improvement |
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