B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/94
B01D 35/04 (2006.01) B01D 24/12 (2006.01) B01D 24/16 (2006.01) C02F 1/50 (2006.01) C02F 1/76 (2006.01) C02F 9/00 (2006.01)
Patent
CA 1321955
ABSTRACTS The filtration method of this invention is continuous and equal slow filtration, and filtering materials are gravel and sand, and by filtration principle, residual chlorine is consumed and removed by oxidizing oxidized materials in the void of gravel and sand, and according to this, oxidized materials are removed, and turbid materials are removed by being retained in the void of gravel and sand, and the intake volume or over the volume of which treating time can be within the time which the aftergrowth of bacteria of city water begins to occur in reaching the high water level of the water storage basin from taking water is taken, and it is disinfected when beginn- ing service water of the public waterworks again after stopping for a moment or when beginning filtration again after stopping for a moment by circum- stances, and if city water is repurified by the method which trubid materials retained in the filter basin discharge to the outside by back washing, as needed, the residual chlorine, the turbid material, odor, organic material and oxidized materials in city water are reduced or removed, and general bacteria are always within the permitted limit, bacteria coli group is always zero, and the effect is maintained without change, and filtering material need not be changed because it can be used semi-permanently
576236
G. Ronald Bell & Associates
Shin Kyong Shing
LandOfFree
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