Variable type bidirectional flow high-speed fiber filter
2015
The invention relates to a variable type bidirectional flow high-speed fiber filter and aims to solve the problems of water quality and water quantity change differences in the rainy season of an urban confluence sewage disposal system, a polyester fiber material serves as a core filter medium, and a variable type bidirectional flow filter reactor is adopted for conducting crossflow filtration on characteristic raw water respectively; in the dry season, the filter serves as a deep purification unit, receives secondary output tail water of a sewage plant and mainly removes suspended substance (SS) in water and biodegradable organics (COD), and the processing flow is 40 m /d-100m /d; in the rainy season, the filter serves as a preprocessing unit, receives rain water collected by a municipal rain system or rain water which is processed simply and preliminarily and mainly removes suspended substance (SS) in water, and the processing flow is 2000m /d-3000m /d. The variable type bidirectional flow high-speed fiber filter is simple in treatment process, high in filtering speed and low in maintenance and upgrading cost, and the filter material is easy to replace; the backwashing mode is simple, and the washing time is short.
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