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What filter is used for rural well water? Do a filter first,Then put the filtered water into the tank from the filter pool.The materials in the household filter pool are also very simple,Usually two floors,Put some garden stones on the first floor (commonly known as Ma Laogu ),Generally 20 to 30 centimeters thick,Put a layer of yellow sand on it.Of course, the garden stone on the next floor can be divided into two levels,It is the garden stone with a larger diameter at the bottom (usually about ten centimeters in diameter ),Then put a little smaller in diameter (usually three to five centimeters in diameter,The top is yellow sand,Yellow sand is about ten centimeters.If water is automatically put into the tank from the filter tank,The yellow sand is slightly larger from the pool.2. install a water purification filter.Water purification filter is an indispensable device in the pipeline of conveying media,It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, fixed
How to test the purity of the filter? FIRST!1.Wang Dong 2.Ma Jinghui 3.Zhang Hongli 4.(1. Beijing Waterlink Environmental Engineering Co., Ltd,BEIJING 100028;2. national industrial water treatment Engineering Technology Research Center,Tianjin 300131;3. School of Environment, Renmin University of China,Beijing 100872;4. Nordic Water, Sweden,[Abstract] the pilot-scale experiments on the deep treatment of two sedimentation tank effluent from municipal sewage treatment plant were carried out by means of silt and active sand filter,It is feasible to use it in municipal water reuse,The water quality is stable,The indicators are better than the requirements of the draft for comment on 2002 of the 'urban Miscellaneous water quality standard.The selection of the flocculation and the filtration effect of the filter are briefly analyzed.[Key words] filter;Continuous filtering;DynaSand active sand filter is an advanced one invented by Sweden Waterlink AB,Conti
