CN205115091U - Air supporting method treatment facility that industrial waste gas administered - Google Patents
Air supporting method treatment facility that industrial waste gas administered Download PDFInfo
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- CN205115091U CN205115091U CN201520748085.1U CN201520748085U CN205115091U CN 205115091 U CN205115091 U CN 205115091U CN 201520748085 U CN201520748085 U CN 201520748085U CN 205115091 U CN205115091 U CN 205115091U
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000007789 gas Substances 0.000 title abstract description 30
- 239000002440 industrial waste Substances 0.000 title abstract description 18
- 238000005188 flotation Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 12
- 239000010802 sludge Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 3
- 239000010795 gaseous waste Substances 0.000 claims 5
- 239000002699 waste material Substances 0.000 claims 3
- 230000009286 beneficial effect Effects 0.000 claims 2
- 230000001376 precipitating effect Effects 0.000 claims 2
- 238000004062 sedimentation Methods 0.000 abstract description 45
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229940037003 alum Drugs 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
本实用新型公开了一种工业废气治理的气浮法处理设备，包括废水药剂混合装置、刮渣机、溶气罐、气浮池和气浮池底部的释放头，所述的气浮池旁侧设置有第一沉淀池，所述的第一沉淀池与气浮池通过管道连通，所述的气浮池和第一沉淀池的上部具有刮渣机，所述的第一沉淀池的旁侧设置有第二沉淀池，所述的第二沉淀池上部具有出水主管，所述的废水药剂混合装置包括污水管、加药罐、开口支管、混合池和搅拌器，所述的加药罐与污水管通过管道连通，所述的加药罐的下部设置有与大气相通的开口支管。本实用新型一种工业废气治理的气浮法处理设备采用这样的结构，能长时间保证工业废气治理的废水处理后的出水质量，降低使用和维护成本。
The utility model discloses an air flotation method treatment equipment for industrial waste gas treatment, which comprises a wastewater medicament mixing device, a slag scraper, an air dissolving tank, an air flotation pool and a release head at the bottom of the air flotation pool. The side of the air flotation pool is provided with a second A sedimentation tank, the first sedimentation tank and the air flotation tank are connected by pipelines, the upper part of the air flotation tank and the first sedimentation tank has a slag scraper, and the second sedimentation tank is arranged on the side of the first sedimentation tank pool, the upper part of the second sedimentation tank has a water outlet main pipe, and the wastewater medicament mixing device includes a sewage pipe, a dosing tank, an open branch pipe, a mixing tank and an agitator, and the dosing tank is connected to the sewage pipe through a pipeline , the lower part of the said dosing tank is provided with an open branch pipe communicating with the atmosphere. The air flotation treatment equipment for industrial waste gas treatment of the utility model adopts such a structure, which can ensure the quality of the effluent after the treatment of industrial waste gas treatment wastewater for a long time, and reduce the use and maintenance costs.
Description
技术领域 technical field
本实用新型涉及工业废气治理领域，尤其涉及一种工业废气治理的气浮法处理设备。 The utility model relates to the field of industrial waste gas treatment, in particular to an air flotation treatment device for industrial waste gas treatment.
背景技术 Background technique
工业废气，尤其是炼胶行业中产生大量含炭黑、氧化锌等微小固体粉尘和操作油的车间废气，目前常用的工艺是用喷淋水试剂进行洗涤。洗涤水中含有大量不溶于水的微小固体颗粒和油滴，严重地影响着废气治理以及洗涤水的后续处理。对于含有微小颗粒或油滴的工业废水的治理，目前采用最广泛的处理方式就是利用气浮装置。气浮装置组成：一是气浮池，充满了已加过混凝剂的工业废水，池体上部为浮渣层，下部为絮凝反应生成矾花等絮状物的沉淀区，底部连有排泥管，在气浮池顶部装有刮渣机等附属装置；二是溶气罐，向气浮池提供粘附细微颗粒物和油滴并带其上浮的微小气泡，气泡通过释放头进入气浮池内；三是进出水管路，进水管路上装有加药装置和混合搅拌器。现有的气俘装置处理污染物直径较小的废水效果较差，中国专利公开号CN203715404U的实用新型专利，公开了一种采用氮气气浮处理煤化工废水的除油装置，其包括溶气罐，气浮池，加药管，混合区。其技术原理：废水依次在快速混合区加药混合，在混凝反应区完成絮凝反应后进入溶气释放区与释放的氮气气泡结合，形成泡沫层，进一步在除油浮沉区除去泡沫层，然后在重力作用下将一部分水中物质沉到排泥管进入污泥处理系统，处理水最终经出水管排出。这样的结构，虽然工业废气治理的废水处理后的效果较好，但使用和维护成本较高。 Industrial waste gas, especially workshop waste gas containing carbon black, zinc oxide and other tiny solid dust and operating oil in the rubber refining industry, is currently commonly used to wash with spray water reagents. The washing water contains a large number of tiny solid particles and oil droplets that are insoluble in water, which seriously affects the treatment of exhaust gas and the subsequent treatment of washing water. For the treatment of industrial wastewater containing tiny particles or oil droplets, the most widely used treatment method is the use of air flotation devices. The composition of the air flotation device: The first is the air flotation tank, which is filled with industrial wastewater that has been added with coagulant. The upper part of the tank is a scum layer, and the lower part is a sedimentation area for flocculation reaction to form flocs such as alum flowers. The bottom is connected with mud discharge The top of the air flotation tank is equipped with auxiliary devices such as a slag scraper; the second is the dissolved air tank, which provides the air flotation tank with tiny bubbles that adhere to fine particles and oil droplets and bring them up, and the bubbles enter the air flotation tank through the release head; It is the water inlet and outlet pipeline, and the dosing device and mixing agitator are installed on the water inlet pipeline. The existing air capture device is less effective in treating wastewater with a smaller diameter of pollutants. The utility model patent of Chinese Patent Publication No. CN203715404U discloses a degreasing device that uses nitrogen air flotation to treat coal chemical wastewater, which includes a dissolved air tank , air flotation pool, dosing pipe, mixing area. Its technical principle: the wastewater is sequentially added and mixed in the rapid mixing zone, and after the flocculation reaction is completed in the coagulation reaction zone, it enters the dissolved air release zone and combines with the released nitrogen bubbles to form a foam layer, and further removes the foam layer in the oil removal floating sink zone, and then Under the action of gravity, some of the substances in the water sink to the sludge discharge pipe and enter the sludge treatment system, and the treated water is finally discharged through the outlet pipe. Such a structure, although the effect of industrial waste gas treatment after treatment is better, but the cost of use and maintenance is relatively high.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是：提供一种工业废气治理的气浮法处理设备，该种工业废气治理的气浮法处理设备能长时间保证工业废气治理的废水处理后的出水质量，降低使用和维护成本。 The technical problem to be solved by the utility model is to provide a kind of air flotation treatment equipment for industrial waste gas treatment, which can ensure the quality of effluent water after treatment of industrial waste gas treatment for a long time, and reduce the Use and maintenance costs.
要解决该技术问题，本实用新型的技术方案为：一种工业废气治理的气浮法处理设备，包括废水药剂混合装置、刮渣机、溶气罐、气浮池和气浮池底部的释放头，所述的气浮池旁侧设置有第一沉淀池，所述的第一沉淀池与气浮池通过管道连通，所述的第一沉淀池的上部具有刮渣机，所述的第一沉淀池的旁侧设置有第二沉淀池，所述的第二沉淀池与第一沉淀池的上部之间具有流水通道，所述的第二沉淀池上部具有出水主管，所述的废水药剂混合装置包括污水管、加药罐、开口支管、混合池和搅拌器，所述的污水管通入混合池，所述的搅拌器位于混合池内，所述的加药罐与污水管通过管道连通，所述的加药罐的下部设置有与大气相通的开口支管。 To solve this technical problem, the technical solution of this utility model is: an air flotation treatment equipment for industrial waste gas treatment, including a waste water medicament mixing device, a slag scraper, a dissolved air tank, an air flotation tank and a release head at the bottom of the air flotation tank. The first settling tank is arranged beside the air flotation tank, and the first settling tank is connected with the air flotation tank through pipelines. The upper part of the first settling tank has a slag scraper, and There is a second sedimentation tank on the side, and there is a flow channel between the second sedimentation tank and the upper part of the first sedimentation tank. The upper part of the second sedimentation tank has a main water outlet, and the wastewater medicament mixing device includes a sewage pipe , a dosing tank, an open branch pipe, a mixing pool and an agitator, the sewage pipe leads into the mixing pool, the agitator is located in the mixing pool, the dosing tank communicates with the sewage pipe through a pipeline, and the adding The lower part of the medicine tank is provided with an open branch pipe communicating with the atmosphere.
所述的溶气罐具有溶气罐进水管道，所述的溶气罐进水管道上设置有带进气阀的进气支管，所述的进气支管与溶气罐之间的溶气罐进水管道上设置有加压泵。 The dissolved air tank has a water inlet pipe for the dissolved air tank, and the water inlet pipe for the dissolved air tank is provided with an air inlet branch pipe with an air inlet valve, and the dissolved air between the air inlet branch pipe and the dissolved air tank A booster pump is arranged on the water inlet pipe of the tank.
所述的出水主管上设置有出水支管，所述的溶气罐进水管道与出水支管连通。 The water outlet main pipe is provided with a water outlet branch pipe, and the water inlet pipe of the dissolved air tank communicates with the water outlet branch pipe.
所述的第一沉淀池内设置有聚集沉淀污泥的第一沉淀池斜板，所述的第二沉淀池内设置有聚集沉淀污泥的第二沉淀池斜板。 The first settling tank is provided with a first settling tank inclined plate for accumulating sedimentation sludge, and the second settling tank is provided with a second settling tank inclined plate for accumulating settling sludge.
所述的第一沉淀池斜板与第一沉淀池可拆卸连接，所述的第二沉淀池斜板与第二沉淀池可拆卸连接。 The inclined plate of the first sedimentation tank is detachably connected with the first sedimentation tank, and the inclined plate of the second sedimentation tank is detachably connected with the second sedimentation tank.
本实用新型一种工业废气治理的气浮法处理设备采用这样的结构，能长时间保证工业废气治理的废水处理后的出水质量，降低使用和维护成本。 The air flotation treatment equipment for industrial waste gas treatment of the utility model adopts such a structure, which can ensure the quality of the effluent after the treatment of industrial waste gas treatment wastewater for a long time, and reduce the use and maintenance costs.
附图说明 Description of drawings
下面结合附图对本实用新型一种工业废气治理的气浮法处理设备作进一步详细的说明； Below in conjunction with accompanying drawing, a kind of air flotation treatment equipment of industrial waste gas treatment of the utility model is described in further detail;
图1为本实用新型一种工业废气治理的气浮法处理设备结构示意图； Fig. 1 is a structural schematic diagram of an air flotation treatment equipment for industrial waste gas treatment of the present utility model;
在图1中，1、加药罐；2、开口支管；3、搅拌器；4、混合池；5、气浮池；6、第一沉淀池；7、刮渣机；8、第一沉淀池斜板；9、排渣口；10、第二沉淀池；11、出水主管；12、出水支管；13、第二沉淀池斜板；14、第二沉淀池排泥口；15、第一沉淀池排泥口；16、进气阀；17、加压泵；18、释放头；19、溶气罐进水管道；20、溶气罐；21、溶气罐压力表；22、污水管。 In Figure 1, 1. Dosing tank; 2. Open branch pipe; 3. Agitator; 4. Mixing tank; 5. Air flotation tank; 6. The first sedimentation tank; 7. Slag scraper; Inclined plate; 9, slag outlet; 10, second sedimentation tank; 11, water outlet main pipe; 12, outlet branch pipe; 13, second sedimentation tank inclined plate; 14, second sedimentation tank mud outlet; 15, first sedimentation 16. Air intake valve; 17. Booster pump; 18. Release head; 19. Water inlet pipe of dissolved air tank; 20. Dissolved air tank; 21. Pressure gauge of dissolved air tank; 22. Sewage pipe.
具体实施方式 detailed description
如图1所示，工业废气治理的气浮法处理设备包括废水药剂混合装置、溶气罐19、气浮池5、气浮池5底部的释放头18、第一沉淀池6、第二沉淀池10和刮渣机7，气浮池旁侧具有第一沉淀池6，第一沉淀池6与气浮池5通过管道连通，第一沉淀池6的上部具有刮渣机7，第一沉淀池6具有聚集沉淀污泥的第一沉淀池斜板8，为了方便，第一沉淀池斜板8与第一沉淀池6可拆卸连接，第一沉淀池6的上部具有排渣口9，第一沉淀池6的底部具有第一沉淀池排泥口15，第一沉淀池6的旁侧具有第二沉淀池10，第二沉淀池10与第一沉淀池6的上部之间具有流水通道，第二沉淀池10上部具有出水主管11，第二沉淀池10具有聚集沉淀污泥的第二沉淀池斜板13，为了方便，第二沉淀池斜板13与第二沉淀池10可拆卸连接，第二沉淀池10的底部具有第二沉淀池排泥口14。 As shown in Figure 1, the air flotation treatment equipment for industrial waste gas treatment includes a wastewater medicament mixing device, an air dissolving tank 19, an air flotation tank 5, a release head 18 at the bottom of the air flotation tank 5, a first sedimentation tank 6, and a second sedimentation tank 10 And slag scraper 7, there is the first settling tank 6 beside the air flotation tank, the first settling tank 6 communicates with the air flotation tank 5 through pipelines, the top of the first settling tank 6 has a slag scraper 7, and the first settling tank 6 has a collection The sloping plate 8 of the first settling tank for sedimentation of sludge, for convenience, the sloping plate 8 of the first settling tank is detachably connected with the first settling tank 6, and the upper part of the first settling tank 6 has a slagging outlet 9, and the first settling tank 6 The bottom of the bottom has the first sedimentation tank mud outlet 15, the side of the first sedimentation tank 6 has the second sedimentation tank 10, there is a flow channel between the second sedimentation tank 10 and the top of the first sedimentation tank 6, the second sedimentation tank The upper part of 10 has a water outlet main pipe 11, and the second sedimentation tank 10 has a second sedimentation tank slant plate 13 for accumulating sedimentation sludge. For convenience, the second sedimentation tank slant plate 13 is detachably connected to the second sedimentation tank 10, and the second sedimentation tank The bottom of 10 has a second sedimentation tank sludge outlet 14 .
废水药剂混合装置包括污水管22、加药罐1、开口支管2、混合池4和搅拌器3，污水管22通入混合池4，搅拌器3位于混合池4内，加药罐1与污水管22通过管道连通，加药罐1的下部具有与大气相通的开口支管2。 The wastewater medicament mixing device comprises a sewage pipe 22, a dosing tank 1, an open branch pipe 2, a mixing pool 4 and an agitator 3, the sewage pipe 22 leads into the mixing pool 4, the agitator 3 is located in the mixing pool 4, the dosing tank 1 and the sewage The pipe 22 communicates with the pipeline, and the lower part of the dosing tank 1 has an open branch pipe 2 communicating with the atmosphere.
溶气罐具有溶气罐进水管道21，溶气罐进水管道21上具有带进气阀16的进气支管，进气支管与溶气罐19之间的溶气罐进水管道21上具有加压泵17，出水主管11上具有出水支管12，溶气罐进水管道21与出水支管12连通。 The dissolved gas tank has a water inlet pipe 21 for the dissolved gas tank, and the water inlet pipe 21 for the dissolved gas tank has an air intake branch pipe with an air inlet valve 16, and the water inlet pipe 21 for the dissolved gas tank between the air intake branch pipe and the dissolved gas tank 19 There is a pressurizing pump 17, the water outlet main pipe 11 has a water outlet branch pipe 12, and the water inlet pipe 21 of the dissolved air tank communicates with the water outlet branch pipe 12.
污水通过污水管22进入本设备，在污水管22处设置加药罐1，加药罐1内盛装混凝剂、絮凝剂等化学试剂。加药罐1内试剂在重力作用下从管道流出与污水汇合，加药罐下部的开口支管2旁通大气，保证加药罐加药的流量恒定。加入的药剂与污水一同进入混合池4，搅拌器3工作使废水与加入的药剂充分混合。混合后的进水流入气浮池5。溶气罐19采用简化设计，溶气罐19的进水采用处理后的回用水，动力来源于加压泵17。当开启加压泵17时，使气、水一同抽入溶气罐19，进入溶气罐19内的气体流量通过进气阀16控制，溶气罐16内的压强通过溶气罐压力表20显示。溶气罐19内形成的溶气水经释放头18减压释放至气浮池5内，溶气罐19内高压下溶解的空气在气浮池5里的低压下被析出，形成大量的微小气泡。混合后的进水中所含微小固体粉尘颗粒与油滴在气浮池5内与析出的微小气泡结合产生大量浮渣，浮渣层初步形成。经气浮处理后的进水流入第一沉淀池6，在第一沉淀池6中，微小颗粒和油滴继续与气泡结合上浮形成浮渣，在刮渣机的作用下收集聚拢到气浮池与刮渣斜板沉淀池顶部的浮渣并从排渣口9排除；而与药剂反应逐渐聚集而成的矾花等絮状物则借助斜板的作用不断地沉淀形成污泥，经第一沉淀池排泥口15排出。出水流入第二沉淀池进行进一步沉淀，第二沉淀池形成的污泥经底部第二沉淀池排泥口14排出。第二沉淀池清洁出水直接排放或回用。第二沉淀池的一小部分水做为溶气罐的供水，经加压泵进入溶气罐。 Sewage enters this equipment through the sewage pipe 22, and the dosing tank 1 is set at the sewage pipe 22, and the chemical reagents such as coagulant and flocculant are filled in the dosing tank 1. The reagent in the dosing tank 1 flows out from the pipeline under the action of gravity and joins with the sewage, and the open branch pipe 2 at the lower part of the dosing tank bypasses the atmosphere to ensure a constant flow of dosing in the dosing tank. The added medicament enters the mixing tank 4 together with the sewage, and the agitator 3 works to fully mix the waste water with the added medicament. The mixed influent flows into the air flotation tank 5 . The dissolved air tank 19 adopts a simplified design, and the water intake of the dissolved air tank 19 adopts treated recycled water, and the power comes from the booster pump 17 . When the booster pump 17 is turned on, the gas and water are pumped into the dissolved gas tank 19 together, and the gas flow rate entering the dissolved gas tank 19 is controlled by the intake valve 16, and the pressure in the dissolved gas tank 16 is controlled by the pressure gauge 20 of the dissolved gas tank. show. The dissolved air water formed in the dissolved air tank 19 is released into the air flotation tank 5 through the release head 18 under reduced pressure, and the air dissolved under the high pressure in the dissolved air tank 19 is separated out under the low pressure in the air flotation tank 5, forming a large number of tiny bubbles. The tiny solid dust particles contained in the mixed influent and the oil droplets combine with the precipitated tiny air bubbles in the air flotation tank 5 to produce a large amount of scum, and a scum layer is initially formed. The influent water after air flotation treatment flows into the first sedimentation tank 6, in the first sedimentation tank 6, tiny particles and oil droplets continue to combine with air bubbles and float up to form scum, which is collected and gathered to the air flotation tank and Scrape the scum on the top of the sloping plate sedimentation tank and remove it from the slag outlet 9; while the alum flowers and other flocs gradually aggregated by the reaction with the chemical will continue to settle to form sludge with the help of the sloping plate, and after the first settling Pool mud outlet 15 is discharged. The effluent flows into the second settling tank for further sedimentation, and the sludge formed in the second settling tank is discharged through the sludge outlet 14 of the second settling tank at the bottom. The clean water from the second sedimentation tank is directly discharged or reused. A small part of the water in the second sedimentation tank is used as the water supply for the dissolved air tank, and enters the dissolved air tank through the booster pump.
本实用新型采用这样的结构，1)加药罐的开口支管保证了加药罐与大气的连通，加药罐内的压强处于稳定状态，从而使药剂的流量在加药的过程中保持恒定，成为恒流加药罐；2)简化了溶气罐的设计，将空气同回流水一同抽进溶气罐，进气阀调节空气流量，简化了溶气罐的管路，通过调节进气阀控制溶气水的气水比例；3)气浮池与第一沉淀池、第二沉淀池相结合，出水主管的出水更符合出水标准。4)斜板增大了矾花间的碰撞与接触，更有利于沉淀，同时斜板可活动，可以定期抽出清洗。 The utility model adopts such a structure, 1) the opening branch pipe of the dosing tank ensures the communication between the dosing tank and the atmosphere, the pressure in the dosing tank is in a stable state, so that the flow of the medicine remains constant during the dosing process, Become a constant flow dosing tank; 2) Simplify the design of the dissolved air tank, pump the air together with the return water into the dissolved air tank, the air intake valve adjusts the air flow, simplifies the pipeline of the dissolved air tank, and adjusts the intake valve Control the air-water ratio of dissolved air water; 3) The air flotation tank is combined with the first sedimentation tank and the second sedimentation tank, and the outlet water of the outlet main pipe is more in line with the outlet water standard. 4) The sloping plate increases the collision and contact between the alum flowers, which is more conducive to precipitation. At the same time, the sloping plate is movable and can be pulled out for cleaning regularly.
本实用新型一种工业废气治理的气浮法处理设备能长时间保证工业废气治理的废水处理后的出水质量，降低使用和维护成本。 The utility model relates to an air flotation treatment device for industrial waste gas treatment, which can ensure the quality of the effluent after the treatment of industrial waste gas treatment wastewater for a long time, and reduce the use and maintenance costs.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858970A (en) * | 2016-06-06 | 2016-08-17 | 上海知勉环境技术有限公司 | Novel air floating method and air floating machine |
| CN106186443A (en) * | 2016-08-30 | 2016-12-07 | 江苏国松环境科技开发有限公司 | Oily waste water integrated treatment unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858970A (en) * | 2016-06-06 | 2016-08-17 | 上海知勉环境技术有限公司 | Novel air floating method and air floating machine |
| CN106186443A (en) * | 2016-08-30 | 2016-12-07 | 江苏国松环境科技开发有限公司 | Oily waste water integrated treatment unit |
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