What are the filtration equipments that can treat sewage, and what is the filtration process?

At present, the advanced filtration process of sewage is divided into sand filtration and filter cloth filtration. Sand filtration is a traditional process with low technical requirements and relatively weak treatment capacity. At present, the filter cloth filtration is more popular, and its filtration effect is better than that of sand filtration, and the filter cloth filtration equipment is usually integrated equipment, which is convenient to install and use. The later maintenance is convenient, and the cost is only to replace the filter cloth. Usually, the service life of filter cloth is 3 years, and the domestic price of filter cloth is about 1 m2 300 yuan.

There are two domestic companies specializing in R&D and water treatment equipment sales. One is Shanghai Andingji Water Treatment Company, relying on Tongji University. There are many water treatment products in the company, among which the "mobile washing vertical filter" specially used for sewage treatment is advanced in technology and has won many national innovative patents. Advanced and mature technology, widely used. The other is Puhua Water, relying on Tsinghua University, specializing in rotary fiber filters. This product is a model of foreign technology. Relatively speaking, the products of Anjingji Company are cheap and advanced in technology. Because its products were launched after Puhua, it overcame many shortcomings of Puhua products.