1), According to the filtration unit types: column and plate. 2), According to the filter used: integrated and stand-alone. 3), According to the aid of use: reversible and regenerative. (1) Reversible diatomite filter Generally plate, two directions filtration unit can be painted film Celite, the water can be filtered from the positive direction, the direction may be switched to the inverse filter, Filtering, recoil, the switching time of the coating, the coating can be adjusted according to the design thickness, filtration rate from 2m / h-10m / h. (2) Renewable diatomite filter Generally column, filter for the tank, cylindrical filter unit is placed inside the tank when the filter is stopped, the tank can be reused in diatomite then boot, diatomaceous earth and saving backwash water, thick film, high dirt holding capacity.
