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化粪池为什么要定期的清理?

来源:2020正规赌博app  发布时间:2020-07-08 17:01:47

  化粪池或称腐化池,是处理污水特别带有粪便的污水的一种构筑物,它能将污水中比水重的悬浮物沉降,并能同时将污泥进行消化。污泥在池底进行消化时,能产生气体,使部份污泥浮至池面,从而阻隔氧气溶于池水中,故化粪池中的污泥消化,属于厌氧分解。
  Septic tank or putrefaction tank is a kind of structure to treat sewage, especially the sewage with feces. It can settle the suspended solids heavier than water in the sewage and digest the sludge at the same time. When the sludge is digested at the bottom of the tank, gas can be generated to make part of the sludge float to the surface of the tank, thus preventing oxygen from dissolving in the pool water. Therefore, sludge digestion in a septic tank belongs to anaerobic decomposition.
  污水流经化粪池的时间,一般为12~24h,水流速度在5~8mm/s以下,污泥在池底累积3~6月或更久,在停留期间,有机质不断减少,分解产物可达到充分稳定。但在污泥分解过程中会产生硫化氢等气体,气体上升可带着池底污泥上浮,影响出水水质,一般在出口处设置潜流隔板。出水呈酸性、溶解氧含量也低。因此,化粪池处理污水多用于:
                                 济南化粪池清理
  The time of sewage flowing through the septic tank is generally 12-24h, and the flow velocity is below 5-8mm / s. The Sludge accumulates at the bottom of the tank for 3-6 months or more. During the residence period, the organic matter decreases continuously and the decomposition products can reach full stability. However, hydrogen sulfide and other gases will be produced in the process of sludge decomposition, and the rising gas can bring the sludge at the bottom of the tank to float up, which will affect the quality of effluent. Generally, an underflow baffle is set at the outlet. The effluent is acidic and the content of dissolved oxygen is low. Therefore, septic tank is often used to treat sewage
  ①医院污水消毒前,用化粪池作预处理;
  ① Before disinfection of hospital sewage, septic tank was used for pretreatment;
  ②建筑物的排放污水,在通入街道下水道前,可先用化粪池处理;
  ② The sewage discharged from buildings can be treated with septic tank before it enters the street sewer;
  ③在地下水位低的地区,单独房屋或不大的房屋群所排出的污水,可用化粪池处理后,排至地下灌溉系统,作进一步的生物氧化处理等。抽化粪池的工作是必不可少的,要定期进行清理。
  ③ In areas with low groundwater level, the sewage discharged from single houses or small houses can be treated by septic tanks and then discharged to the underground irrigation system for further biological oxidation treatment. The work of pumping septic tank is essential and should be cleaned regularly.