CN202415262U - Vehicle-mounted integrated sewage treatment unit - Google Patents
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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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Abstract
本实用新型公开了一种车载式一体化污水处理装置，它是由A2/O与MBR相结合的污水处理装置，整个设备安装在汽车集装箱内，具有可移动性，灵活方便，可广泛应用于农家乐、度假村、建筑工地、高速公路服务站、农村居民点和污染事故地等分散式污水处理，该装置由玻璃钢制成，利用隔板分成厌氧池、缺氧池和好氧池，在好氧池中设有悬浮填料，作为微生物的活性载体，利用A2/O可以达到同步脱氮除磷的效果。同时，在好氧池中安置膜组件，能高效地进行固液分离，由于膜的高效截留作用，出水达到或超过国家中水回用水质标准和杂用水标准，可回用到园林绿化、景观用水、车辆冲洗、建筑施工等方面，该装置是一种节能、高效的新型污水处理设备。
The utility model discloses a vehicle-mounted integrated sewage treatment device, which is a sewage treatment device combined with A2 /O and MBR. The whole device is installed in a car container, has mobility, is flexible and convenient, and can be widely used It is used for distributed sewage treatment in farmhouses, resorts, construction sites, expressway service stations, rural settlements and pollution accident sites. The device is made of glass fiber reinforced plastics and divided into anaerobic pool, anoxic pool and aerobic pool by partitions. The aerobic tank is equipped with suspended filler, which is used as the active carrier of microorganisms, and the effect of synchronous nitrogen and phosphorus removal can be achieved by using A 2 /O. At the same time, the installation of membrane modules in the aerobic pool can efficiently separate solids and liquids. Due to the high-efficiency interception effect of the membrane, the effluent reaches or exceeds the national reclaimed water quality standards and miscellaneous water standards, and can be reused for landscaping and landscaping. In terms of water, vehicle washing, building construction, etc., the device is a new type of energy-saving and efficient sewage treatment equipment.
Description
技术领域 technical field
本实用新型属于环境工程技术领域，涉及污水净化技术，特别适用于农村、建筑施工工地和水体污染事故地等分散式污水的处理，更具体地说是一种车载式一体化A2/O与MBR相结合的污水处理装置。 The utility model belongs to the technical field of environmental engineering, relates to sewage purification technology, is particularly suitable for the treatment of distributed sewage in rural areas, construction sites and water pollution accident sites, and more specifically relates to a vehicle-mounted integrated A 2 /O and Sewage treatment device combined with MBR.
背景技术 Background technique
为了解决城市水体污染，建造城市污水处理厂集中式污水资源化是一个有效的途径，其处理技术已经趋于成熟，在目前世界范围内城市污水处理中占主导位置。但是对于远离再生水供水管网的住宅小区，要得到集中式再生水供应就比较困难，不但需要增加专门建设的输水管线，而且由于水在城市管网中进行长途运输会导致大量回用水的渗漏。据统计，在城市排水管网和集中污水处理厂的基建总投资中，一般城市排水管网要占70% 左右。由于城市地形的影响，排水管网系统，可能建设一些提升泵站，这不仅投资巨大，并且运行和维护费用昂贵。如果从集中污水处理厂处理后再进行中水回用，水在城市管网中至少进行三次输送，输送过程中浪费了大量的基建费用和运行维护费用，这部分投资已经成为巨大的经济负担，并且远远超过城市污水集中处理厂的费用。在这种情况下，无论从技术上还是经济上考虑，分散式污水处理与再生利用系统就成为一种集中式系统的重要补充。目前，国内外科学家都积极倡导污水分散处理思想，即就地处理就地回用，实现水平衡和水循环。据报道，2007年美国水环境研究基金(WERF)和美国国家环保局(EPA)在巴尔的摩召开了分散式污水处理与利用需求的中长期发展战略规划会议，与会的各国代表共同签署了巴尔的摩宪章。 In order to solve urban water pollution, it is an effective way to build centralized sewage resources in urban sewage treatment plants. Its treatment technology has become mature and currently occupies a leading position in urban sewage treatment worldwide. However, for residential areas far away from the reclaimed water supply network, it is more difficult to obtain centralized reclaimed water supply. Not only does it need to increase the specially constructed water delivery pipeline, but also the long-distance transportation of water in the urban pipeline network will cause a large amount of reused water to leak . According to statistics, in the total infrastructure investment of urban drainage network and centralized sewage treatment plant, general urban drainage network accounts for about 70%. Due to the influence of urban topography and drainage pipe network system, some lifting pump stations may be built, which is not only a huge investment, but also expensive to operate and maintain. If reclaimed water is reused after being treated in a centralized sewage treatment plant, the water will be transported at least three times in the urban pipe network, and a lot of infrastructure costs and operation and maintenance costs will be wasted during the transport process. This part of the investment has become a huge economic burden. And it far exceeds the cost of urban sewage centralized treatment plants. In this case, regardless of technical or economic considerations, the decentralized sewage treatment and recycling system becomes an important supplement to a centralized system. At present, scientists at home and abroad are actively advocating the idea of decentralized sewage treatment, that is, on-site treatment and on-site reuse to achieve water balance and water cycle. According to reports, in 2007, the US Water Environment Research Foundation (WERF) and the US Environmental Protection Agency (EPA) held a mid- and long-term strategic planning meeting for decentralized sewage treatment and utilization needs in Baltimore, and representatives from various countries at the meeting signed the Baltimore Charter.
分散式污水处理系统具有小型化的特征，一般为处理能力在50-500 m3/d的小型污水处理设备，集污水处理工艺各部分功能为一体。一般来讲，分散式污水处理系统种类多、分布广，需要分散处理的不仅包括不能纳入城市污水收集系统的广大农村地区、别墅区、旅游风景点、度假村、疗养院、机场的污水和独立工矿区的工业废水，还包括单独经营的酒店、楼宇、餐馆、酒家、建筑工地以及高速公路服务站等所排放的污水。将分散处污水经过适当处理后作为杂用水，将其在一定范围内重复使用，从而实现对水资源的循环利用。国内对于分散式废水处理研究，随着科学技术的发展，尤其是膜技术的发展，污水处理设施实现了装置化、小型化，使污水分散处理和回用得以实现。 Distributed sewage treatment system has the characteristics of miniaturization, which is generally a small sewage treatment equipment with a treatment capacity of 50-500 m 3 /d, which integrates the functions of various parts of the sewage treatment process. Generally speaking, there are many types and wide distribution of decentralized sewage treatment systems, and decentralized treatment not only includes vast rural areas, villa areas, tourist attractions, resorts, nursing homes, airport sewage and independent industrial and mining areas that cannot be included in the urban sewage collection system. The industrial wastewater also includes the sewage discharged from independently operated hotels, buildings, restaurants, restaurants, construction sites and expressway service stations. After proper treatment, the sewage at the scattered place will be used as miscellaneous water, and it will be reused within a certain range, so as to realize the recycling of water resources. Domestic research on decentralized wastewater treatment, with the development of science and technology, especially the development of membrane technology, the sewage treatment facilities have realized the installation and miniaturization, so that the decentralized treatment and reuse of sewage can be realized.
发明内容 Contents of the invention
为实现上述目的，本实用新型提供了一种车载式A2/O与MBR相结合的一体化污水处理装置，本实用新型的技术方案如下： In order to achieve the above purpose, the utility model provides an integrated sewage treatment device combining vehicle-mounted A 2 /O and MBR. The technical scheme of the utility model is as follows:
一种车载式一体化污水处理装置，它是由A2/O与MBR相结合构成的污水处理装置，该装置前端设有进水泵（1），自进水端至出水端利用隔板依次分成厌氧池（2）、缺氧池（3）和好氧池（4），各池间有过水通道，在厌氧池和缺氧池上均安装有搅拌机（5），在好氧池中安置膜组件（6）和悬浮填料（7），好氧池底部安装有曝气盘（8）与曝气风机端口（9）连接，为好氧池提供氧气，在好氧池与缺氧池、缺氧池与厌氧池间均设有污泥回流泵（10），在好氧池后端安装有 MBR反冲洗泵（11）、反冲洗水箱（清水储蓄箱）（12）和MBR真空泵（13）。 A vehicle-mounted integrated sewage treatment device, which is a sewage treatment device composed of a combination of A 2 /O and MBR. The front end of the device is equipped with a water inlet pump (1), which is sequentially divided into Anaerobic pool (2), anoxic pool (3) and aerobic pool (4), each pool has a water passage, and agitator (5) is installed on the anaerobic pool and anoxic pool, in the aerobic pool Membrane modules (6) and suspended fillers (7) are placed, and an aeration disc (8) is installed at the bottom of the aerobic tank to connect with the aeration fan port (9) to provide oxygen for the aerobic tank. , The sludge return pump (10) is installed between the anoxic tank and the anaerobic tank, and the MBR backwash pump (11), backwash water tank (clean water storage tank) (12) and MBR vacuum pump are installed at the rear end of the aerobic tank (13).
本实用型新所述的车载式一体化污水处理装置，其中MBR膜组件安装在A2/O的好氧池中。在A2/O的好氧池中设有悬浮填料。 In the vehicle-mounted integrated sewage treatment device described in the utility model, the MBR membrane module is installed in the A 2 /O aerobic pool. A 2 /O aerobic tank is provided with suspended filler.
其中曝气风机端口（9）位于好氧池底部并连接曝气盘（8），为好氧池充氧和冲刷膜组件。 The aeration fan port (9) is located at the bottom of the aerobic tank and connected to the aeration disc (8) to aerate the aerobic tank and flush the membrane components.
其中厌氧池、缺氧池、好氧池和反冲洗水箱均设有排空阀（14）。 Wherein the anaerobic pool, the anoxic pool, the aerobic pool and the backwash water tank are all provided with emptying valves (14).
其中A2/O与MBR相结合的污水处理装置通过连接固件固定在机动车底盘（15）上，位于集装箱体（16）内，整个系统具有可移动性。整个污水处理装置的箱体由玻璃钢制。 Among them, the sewage treatment device combined with A 2 /O and MBR is fixed on the motor vehicle chassis (15) through connecting firmware, and is located in the container body (16), and the whole system is movable. The box body of the whole sewage treatment device is made of fiberglass.
系统运行时，利用发电机供电打开进水泵将污水抽入厌氧池为处理装置供水，通过曝气风机为好氧池提供氧气，在好氧池中进行硝化作用，将污水中氨氮转化为硝氮，污泥回流泵将好氧池内混合液回流至缺氧池以实现反硝化，将缺氧池内混合液回流至厌氧池以实现厌氧释磷，利用MBR反冲洗泵对好氧池膜组件进行反冲洗和利用真空泵抽吸处理水进行膜过滤，将清水排出至反冲洗水箱（清水储蓄箱），每个池底均设有排空阀（14），整个污水处理装置固定在机动车底盘（15）上，位于集装箱体（16）内。 When the system is running, the generator power is used to turn on the water inlet pump to pump the sewage into the anaerobic tank to supply water for the treatment device, and the aeration fan provides oxygen for the aerobic tank, and nitrification is carried out in the aerobic tank to convert the ammonia nitrogen in the sewage into nitrate Nitrogen, the sludge return pump returns the mixed solution in the aerobic tank to the anoxic tank to achieve denitrification, and returns the mixed solution in the anoxic tank to the anaerobic tank to achieve anaerobic phosphorus release. The components are backwashed and vacuum pumps are used to pump treated water for membrane filtration, and the clean water is discharged to the backwash water tank (clean water storage tank). There is an emptying valve (14) at the bottom of each pool, and the entire sewage treatment device is fixed on the motor vehicle. On the chassis (15), it is located in the container body (16).
本实用新型所述的A2/O与MBR相结合的一体化污水处理装置， The integrated sewage treatment device combining A 2 /O and MBR described in the utility model,
其中A2/O指的是厌氧-缺氧-好氧生物脱氮除磷工艺； Among them, A 2 /O refers to the anaerobic-anoxic-aerobic biological nitrogen and phosphorus removal process;
MBR指的是膜生物反应器； MBR refers to membrane bioreactor;
好氧池中安置MBR膜组件的作用是取代A2/O工艺中的二沉池，将两种污水处理工艺进行有效组合，膜组件可将生化反应过程中的活性污泥和大分子有机物质截留于反应器内，在反应器内实现了固液分离(属于常规工艺)。 The function of installing MBR membrane modules in the aerobic tank is to replace the secondary sedimentation tank in the A 2 /O process, and effectively combine the two sewage treatment processes. The membrane modules can convert activated sludge and macromolecular organic substances in the biochemical reaction process It is trapped in the reactor, and solid-liquid separation is realized in the reactor (belonging to a conventional process).
作为微生物活性载体的悬浮填料指的是聚丙烯多孔旋转球形悬浮填料，具有全立体结构，比表面积大，直接投放，无须固定，易挂膜，不堵塞等优点。 Suspension filler as a microbial active carrier refers to polypropylene porous rotating spherical suspension filler, which has the advantages of full three-dimensional structure, large specific surface area, direct delivery, no need to fix, easy to hang film, and no clogging.
曝气指的是利用曝气风机向好氧池中输送氧气，增加污水中足够的溶解氧，以满足好氧生物对氧气的需求，促进硝化作用，同时，阻止悬浮填料下沉，冲刷膜组件，对膜组件起到冲洗作用。 Aeration refers to the use of an aeration fan to deliver oxygen to the aerobic tank to increase enough dissolved oxygen in the sewage to meet the oxygen demand of aerobic organisms and promote nitrification. At the same time, it prevents the suspended filler from sinking and scours the membrane components. , to flush the membrane components.
本实用新型与现有技术相比所具有的积极效果在于： Compared with the prior art, the utility model has the following positive effects:
（1）本实用新型的车载式A2/O与MBR相结合的一体化污水处理装置，能经济、有效地去除污水中的SS、COD、氮、磷等污染物，集就地取水、就地处埋、就地回用为一体，结构简单，机动性强，能广泛应用于农村地区、建筑工地、高速公路服务站、别墅区、旅游风景点、度假村和污染事故地污水的应急处理。 (1) The vehicle-mounted A 2 /O and MBR integrated sewage treatment device of the present utility model can economically and effectively remove pollutants such as SS, COD, nitrogen, phosphorus, etc. It is buried and reused on site, with simple structure and strong mobility, and can be widely used in emergency treatment of sewage in rural areas, construction sites, expressway service stations, villa areas, tourist attractions, resorts and pollution accident sites.
（2）本实用新型的车载式A2/O与MBR相结合的一体化污水处理装置，实现了装置化、小型化，使污水分散处理和回用得以实现。该装置是一种节能、高效的新型污水处理设备。 (2) The vehicle-mounted A 2 /O integrated sewage treatment device combined with MBR of the utility model realizes the deviceization and miniaturization, and realizes the decentralized treatment and reuse of sewage. The device is a new energy-saving and efficient sewage treatment equipment.
（3）本实用新型的车载式A2/O与MBR相结合的一体化污水处理装置，整个设备安装在汽车集装箱内，具有可移动性，灵活方便，经过处理的污水出水达到或超过国家中水回用水质标准和杂用水标准，可回用到园林绿化、景观用水、车辆冲洗、建筑施工等方面。 (3) The vehicle-mounted A 2 /O integrated sewage treatment device combined with MBR of the utility model, the whole equipment is installed in the car container, has mobility, flexibility and convenience, and the treated sewage effluent reaches or exceeds the national standard Water quality standards and miscellaneous water standards for water reuse can be reused in landscaping, landscape water, vehicle washing, building construction, etc.
附图说明 Description of drawings
图1为本实用新型车载式一体化污水处理装置正剖面示意图； Fig. 1 is the schematic diagram of the front section of the vehicle-mounted integrated sewage treatment device of the present invention;
图中标号： Labels in the figure:
进水泵1、厌氧池2、缺氧池3、好氧池4、搅拌机5、膜组件6、悬浮填料7、曝气盘8、曝气风机9、污泥回流泵10、反冲洗泵11、反冲洗水箱（清水储蓄箱）12、真空泵13、排空阀14，机动车底盘15，集装箱体16。
Inlet pump 1,
具体实施方式 Detailed ways
下面结合附图和实施例详细说明本实用新型车载式A2/O与MBR相结合的一体化污水处理装置的结构。但本实施例并不用于限制本实用新型，凡是采用本实用新型的相似结构及其相似变化，均应列入本实用新型的保护范围，其中的球形悬浮填料有市售。 The structure of the vehicle-mounted A 2 /O integrated sewage treatment device combined with MBR of the utility model will be described in detail below in conjunction with the drawings and examples. However, this embodiment is not intended to limit the utility model, and all similar structures and similar changes of the utility model should be included in the protection scope of the utility model, and the spherical suspension fillers are commercially available.
实施例1Example 1
一种车载式一体化污水处理装置的制作及使用方法： A method for making and using a vehicle-mounted integrated sewage treatment device:
一种车载式一体化污水处理装置，它是由A2/O与MBR相结合的污水处理装置，污水处理装置箱体由玻璃钢制成，该装置由进水泵1，厌氧池2、缺氧池3、好氧池4、出水真空泵13组成，各池间有过水通道，在厌氧池和缺氧池上安装有搅拌机5，在好氧池中安置膜组件6和悬浮填料7，好氧池底部安装有曝气盘8，与曝气风机9端口连接为好氧池提供氧气，在好氧池与缺氧池、缺氧池与厌氧池间均设有污泥回流泵10，在好氧池后端安装有 MBR反冲洗泵11、反冲洗水箱（清水储蓄箱）12和MBR真空泵13，每个池底均设有排空阀14，整个污水处理装置固定在机动车底盘15上，位于集装箱体16内。
A vehicle-mounted integrated sewage treatment device, which is a sewage treatment device combined with A 2 /O and MBR. The sewage treatment device box is made of glass steel. The device consists of an inlet pump 1, an
系统运行时，进水泵将污水抽入厌氧池为处理装置供水，通过风机为好氧池提供氧气，同时，在好氧池中安装有悬浮填料，作为微生物的活性载体，依靠曝气池内的曝气作用使之处于流动状态，悬浮填料在曝气时，生长了生物膜的填料密度因与水接近，填料依靠曝气的搅拌作用，处于流动状态，使污水与填料上的生物膜频繁地接触，填料在流动过程中切割气泡，使布气更加均匀，氧利用率得到了提高，促进在好氧池中进行硝化作用，将污水中氨氮转化为硝氮，污泥回流泵将好氧池内混合液回流至缺氧池以实现反硝化，将缺氧池内混合液回流至厌氧池以实现厌氧释磷，利用MBR反冲洗泵对好氧池膜组件进行反冲洗和利用真空泵抽吸处理水进行膜过滤，将清水排出至清水储蓄箱，实现污水的净化处理，水资源的循环利用。 When the system is running, the water inlet pump pumps the sewage into the anaerobic tank to supply water for the treatment device, and the fan provides oxygen for the aerobic tank. Aeration makes it in a flowing state. When the suspended filler is aerated, the density of the filler with biofilm is close to that of water. The filler relies on the stirring effect of aeration to be in a flowing state, so that the sewage and the biofilm on the filler frequently Contact, the filler cuts the bubbles during the flow process, makes the air distribution more uniform, improves the oxygen utilization rate, promotes nitrification in the aerobic tank, converts ammonia nitrogen in the sewage into nitrate nitrogen, and the sludge return pump transfers the nitrogen in the aerobic tank The mixed solution is returned to the anoxic tank to achieve denitrification, the mixed solution in the anoxic tank is returned to the anaerobic tank to realize anaerobic phosphorus release, and the MBR backwash pump is used to backwash the membrane components of the aerobic tank and use a vacuum pump for suction treatment The water is filtered by membrane, and the clean water is discharged to the clean water storage tank, so as to realize the purification treatment of sewage and the recycling of water resources.
实施例2Example 2
在天津蓟县某农家乐，利用车载式一体化污水处理装置对所收集的生活污水进行现场处理，进水为化粪池出水，进水中SS（悬浮物）、COD（化学需氧量）、BOD5（5日生化需氧量）、氨氮、TP（总磷）分别为150、280、152、35和3.5mg/L，通过车载式一体化污水处理装置处理，系统出水SS、COD、BOD5、氨氮和TP 分别为0、27.15、1.51、0.45和0.20 mg /L，总大肠菌群未检出，满足杂用水水质标准，可用于冲厕、绿化、洗车、清洗路面和农作物灌溉等。 In a farmhouse in Jixian County, Tianjin, the collected domestic sewage is treated on-site with a vehicle-mounted integrated sewage treatment device. The influent is septic tank effluent, SS (suspended solids), COD (chemical oxygen demand), and BOD in the influent water 5 (5-day biochemical oxygen demand), ammonia nitrogen, and TP (total phosphorus) are 150, 280, 152, 35, and 3.5mg/L, respectively, and are treated by a vehicle-mounted integrated sewage treatment device. The system effluent SS, COD, and BOD 5 , ammonia nitrogen, and TP were 0, 27.15, 1.51, 0.45, and 0.20 mg/L, respectively. The total coliform group was not detected, meeting the water quality standards for miscellaneous water, and can be used for toilet flushing, greening, car washing, road cleaning, and crop irrigation.
综上所述，本实用新型的内容并不局限在的实施例中，相同领域内的有识之士可以在本实用新型的技术指导思想之内可以轻易提出其他的实施例，但这种实施例都包括在本实用新型的范围之内。 In summary, the content of the present utility model is not limited in the embodiment, and people of insight in the same field can easily propose other embodiments within the technical guiding ideology of the present utility model, but this implementation Examples are included within the scope of the present utility model.
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| CN103708686A (en) * | 2014-01-21 | 2014-04-09 | 厦门市威士邦膜科技有限公司 | Facultative anaerobic membrane bioreactor wastewater treatment device and treatment process thereof |
| CN103819066A (en) * | 2013-11-18 | 2014-05-28 | 天津科技大学 | Combined type septic-tank device in outdoor campground |
| CN104250051A (en) * | 2013-06-27 | 2014-12-31 | 周鼎力 | Purification treatment method of fecal water of movable toilet |
| CN106396283A (en) * | 2016-11-23 | 2017-02-15 | 辽宁城建设计院有限公司 | SAFO-MBR (sequencing-anaerobic-facultative-oxic membrance bio-reactor) village sewage treatment system and treatment method thereof |
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| CN104250051A (en) * | 2013-06-27 | 2014-12-31 | 周鼎力 | Purification treatment method of fecal water of movable toilet |
| CN103819066A (en) * | 2013-11-18 | 2014-05-28 | 天津科技大学 | Combined type septic-tank device in outdoor campground |
| CN103708686B (en) * | 2014-01-21 | 2014-09-10 | 威士邦（厦门）环境科技有限公司 | Facultative anaerobic membrane bioreactor wastewater treatment device and treatment process thereof |
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| CN106587347A (en) * | 2015-10-19 | 2017-04-26 | 李天源 | Intelligent movable rural domestic sewage treatment method and device |
| CN106396283A (en) * | 2016-11-23 | 2017-02-15 | 辽宁城建设计院有限公司 | SAFO-MBR (sequencing-anaerobic-facultative-oxic membrance bio-reactor) village sewage treatment system and treatment method thereof |
| CN108623079A (en) * | 2017-03-21 | 2018-10-09 | 嵊州市晟祥盈净水设备有限公司 | A kind of mobile wastewater treatment vehicle based on A20 techniques |
| CN107720947A (en) * | 2017-10-20 | 2018-02-23 | 长沙中联重科环境产业有限公司 | Portable wastewater treatment vehicle |
| CN110563247A (en) * | 2018-08-08 | 2019-12-13 | 涡阳县恒丰塑胶制品有限公司 | novel integrated sewage treatment equipment |
| CN109879530A (en) * | 2019-02-25 | 2019-06-14 | 安徽建筑大学 | A method of using vehicle-mounted integrated treatment equipment to treat village sewage |
| CN110655187A (en) * | 2019-09-30 | 2020-01-07 | 江苏凯米膜科技股份有限公司 | Distributed sewage treatment method and treatment system |
| CN110655187B (en) * | 2019-09-30 | 2021-11-30 | 江苏凯米膜科技股份有限公司 | Distributed sewage treatment method and treatment system |
| CN111847642A (en) * | 2020-06-30 | 2020-10-30 | 桂林理工大学 | Water treatment microorganism high flow carrier material, preparation method and water treatment method |
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