保定建兴模具制造有限公司

化粪池技术类型

Septic tank technology type

传统化粪池的应用已经有一百多年历史，技术路线是污水和污泥接触的模式，沉积的污泥消化降解产生沼气、二氧化碳、硫化氢等消化气，消化气的上浮作用对污泥产生扰动，消化气对污泥的扰动作用能够让污泥与生物菌群的混合更充分，有助于消化降解。但底部污泥随消化气上升，气泡逸出后，污泥又重新向下沉淀，这些上升和沉淀的污泥又重新污染污水。

The traditional septic tank has been used for more than one hundred years. The technical route is the contact mode between sewage and sludge. The digestion and degradation of sedimentary sludge produces digestive gas such as methane, carbon dioxide and hydrogen sulfide. The floating of digestive gas disturbs the sludge. The disturbance of digestive gas to sludge can make the sludge and biological flora. Mixing is more adequate, which helps digestion and degradation. But the bottom sludge rises with digestive gas, and when bubbles escape, the sludge settles down again, and these rising and settling sludges re-pollute the sewage.

在化粪池污水与污泥接触混合的技术模式下，影响化粪池的沉淀及出水水质，需要延长污水停留时间来改善沉淀效果及出水水质，污水停留时间一般为12-24小时。

Septic tank sewage and sludge contact mixing technology mode, affect the septic tank sedimentation and effluent quality, need to extend the sewage residence time to improve sedimentation effect and effluent quality, sewage residence time is generally 12-24 hours.

三相分离

Three phase separation

三相分离化粪池技术是在传统化粪池的基础上，保留了化粪池中泥水混合的优点，增加了“污水、污泥、消化气”三相分离的技术，在化粪池的出水端设置三相分离装置，使出水端的污泥、消化气与污水处理过程分离，避免气浮现象对污水处理的干扰。出水端的沉淀槽参照平流沉淀池技术标准，污水沉淀时间2小时之内。

Three-phase septic tank technology is based on the traditional septic tank, retaining the advantages of sludge-water mixing in the septic tank, adding the "sewage, sludge, digestive gas" three-phase separation technology, in the septic tank outlet set up three-phase separation device, so that the effluent of sludge, digestive gas and sewage treatment process separation, to avoid gas The disturbance of floats to sewage treatment. The sedimentation tank at the outlet side is based on the horizontal sedimentation tank technology standard, and the sewage settling time is within 2 hours.

技术对比

Technical comparison

化粪池的容积由污水容积和污泥容积构成，三相分离化粪池中污水停留时间4-6小时，相对于泥水混合化粪池中污水停留时间12-24小时，通过缩短污水停留时间而节省了有效容积，所节省有效容积能够存储更多的污泥。

The volume of septic tank is composed of sewage volume and sludge volume. The residence time of sewage in three-phase septic tank is 4-6 hours. Compared with the residence time of sewage in sludge-water mixed septic tank, the effective volume is saved by shortening the residence time of sewage. The effective volume can store more sludge.