High-speed service area sewage treatment equipment
水质得到净化，达到国家或地方的水污染物排放标准，保护水资源环境和人体健康。 The main pollutants of sewage treatment equipment in high-speed service area for treating domestic sewage are pathogenic microorganisms and toxic and harmful physical and chemical pollutants. Various physical, chemical and biological pollutants in water can be removed through various water treatment technologies and equipment. , Purify water quality, meet national or local water pollutant discharge standards, protect water resources, environment and human health. 标准相差甚远。 Nevertheless, some domestic sewage stations are unable to achieve stable discharge standards due to treatment technology and management reasons, which is far from the prescribed discharge standards. 理自动化程度高，采用地埋式占地面积少，美观大方等优点。 Therefore, on the basis of many years of research, this type of domestic sewage has been successfully treated with a pre-stage A biochemical pond (hydrolytic biochemical pond) -biological contact oxidation-disinfection process. The effect is good, the operation management is highly automated, and the advantages of small underground area and beautiful appearance are adopted.
Integrated domestic sewage treatment equipment, buried design. Combined with the nature of domestic sewage, this equipment adopts the world's advanced biological treatment technology, which combines the removal of BOD5, COD, NH3-N, and germs. It is the most current domestic sewage treatment equipment. 泛地用于各小区的生活污水处理及水质近似生活污水的工业水处理，替代了去除率很低，处理后出水不能达到国家排放标准的普通物理化学法及生化处理法。 It is widely used in domestic sewage treatment and industrial water treatment with water quality similar to domestic sewage in various communities, replacing ordinary physical and chemical methods and biochemical treatment methods with very low removal rates and effluent that cannot meet national discharge standards. 活污水专用处理设备是一种处理效果十分理想且管理方便的设备。 The application shows that the underground integrated sewage treatment equipment is an ideal equipment with ideal treatment effect and convenient management.
Sewage treatment tanks and underground equipment are designed below the ground surface and greened. Therefore, the sewage treatment station does not affect the overall environment and deepening requirements of the surrounding area.
2. Process flow of sewage treatment equipment in high-speed service area:
Domestic sewage flows into the grille pool, and the grid intercepts large particles of solids and floating objects, and the effluent enters the regulating and balancing pool. 机污染物，改善废水可生化性，同时能分解常规处理中不易于降解的高分子特殊成份。 The effluent of the adjustment tank is upgraded by a pump to a level A biochemical tank, that is, a hydrolytic biochemical tank. The hydrolytic biochemical tank can play a role in pre-sterilizing the water quality and reducing organic pollutants in the wastewater, improving the biodegradability of the wastewater, and can decompose the conventional wastewater Easily degradable polymer special ingredients. The hydrolytic biochemical tank receives activated sludge from the secondary sedimentation tank. 膜的作用下将有机物降解为二氧化碳和水，出水经二沉池泥水分离后，进入消毒中间水池，经前级处理，废水各项指标均超过污水排放一级标准。 The effluent from the hydrolytic biochemical tank goes to the secondary contact oxidation tank for biochemical treatment. The organic matter is degraded into carbon dioxide and water under the action of aeration and biofilm . After the effluent is separated by the mud water of the secondary sedimentation tank, it enters the disinfection intermediate tank and passes through the front stage. The various indicators of wastewater treatment exceeded the first-level standards for wastewater discharge. 泥处理池浓缩池消化分解，消化分解池中的剩余污泥量很少，定期用吸粪车抽吸并外运。 The sludge separated from the secondary sedimentation tank is discharged to the hydrolytic biochemical tank and the sludge treatment tank to be digested and decomposed. The remaining sludge in the digestion and decomposition tank is very small. It is regularly sucked by a manure suction truck and transported.
3. Principle of sewage treatment equipment in high-speed service area:
The biological contact oxidation series of domestic sewage treatment processes to remove organic pollutants and ammonia nitrogen from sewage mainly depend on the two-stage biological systems in the process, A and O. 态，此时微生物为兼性微生物，它们将污水中的有机氮转化分解成NH3-N，同时利用有机碳源作电子供体，将NO2、NO3-N转化成N3，而且利用部分有机碳与NH3-N合成新的细胞物质。 The process principle is that at the A level, due to the high concentration of organic matter in the sewage, the microorganisms are in an anoxic state . At this time, the microorganisms are facultative microorganisms. They convert and decompose organic nitrogen in the sewage into NH3-N, while using organics. A carbon source is used as an electron donor to convert NO2, NO3-N into N3, and a part of organic carbon and NH3-N are used to synthesize new cellular material. 不仅具有一定的有机物去除功能，减轻后续好氧池的有机负荷，完成反硝化作用，最终消除氮的营养污染。 Therefore, the A-level pool not only has a certain organic matter removal function, reduces the organic load of subsequent aerobic pools, completes denitrification, and finally eliminates nitrogenous nutrition pollution. 作用能顺利进行，在O级设臵有机负荷较低的好氧生物氧化池，池中主要存在好氧生物及臭氧型（硝化菌）和有机物分解产生的无机碳或CO2作为营养源，将污水中的NH3-N转化成NO2-N、NO3-N 。 In the O-level, because the organic matter is further oxidized and decomposed, and the carbonization is completed, the nitrification can be carried out smoothly. In the O-level, an aerobic biological oxidation pond with a lower organic load is set up, and aerobic is mainly present in the pond Biological and ozone type (nitrifying bacteria) and inorganic carbon or CO2 produced by the decomposition of organic matter are used as nutrient sources to convert NH3-N in sewage into NO2-N and NO3-N The sludge part of the sludge tank is returned to the A-level tank to provide an electron acceptor for the A-level tank. Through nitrification, nitrogen pollution is finally eliminated.
4. Advantages of sewage treatment equipment in high-speed service area:
(1) The entire processing system is highly automated and easy to operate, easy to manage, stable and reliable, and the system is stable.
、消化回流剩余污泥起着重要作用。 (2) The use of integrated domestic sewage special equipment is a major feature. The sewage can not only degrade a considerable degree of COD and suspended matter in the A-level biochemical tank, but also improve the biodegradability of the sewage and degrade polymer organic matter. Reducing the difficulty of subsequent treatment and digesting and returning the remaining sludge play an important role.
污水水质特性，对大肠、病菌等有很好的杀菌作用，是一种安全可靠的消毒剂。 (3) The system disinfectant uses chlorine cake contact disinfection method. The chlorine cake does not react with certain compounds in the sewage (such as ammonia, nitrogen, alcohol, aldehyde esters, etc.), which ensures the content of free chlorine and disinfection effect. The sterilization ability of cake sterilization is very suitable for domestic sewage water quality characteristics. It has a good sterilization effect on large intestines and germs. It is a safe and reliable disinfectant.
(4) Complete set of sewage treatment equipment All power equipment are well-known brands, the equipment quality is excellent, the operating power cost is low, the quality is reliable, and the operation is stable.
(5) The system is underground, and the greening on the equipment does not affect the environment.