Patent ID: 9708822
Date: 2017-07-18
CPC Classifications: C02F,E02B,E02F,E04H,Y02W

Claim:
1. A process to maintain a water body, wherein the water body has a volume of at least 15,000 m 3 and is housed in a structure having a bottom and walls and provided with skimmers, the process comprising: maintaining pH of water in the water body at pH 5 to 9; adding an oxidizing agent to the water to maintain a oxidation-reduction potential (ORP) of at least 600 mV for at least 4 hours within a 48 hour cycle; adding a flocculating agent to the water at a concentration of 0.02 to 1 ppm at a frequency of at least once every 6 days to precipitate impurities in the water and to accumulate precipitated impurities at the bottom of the structure; removing precipitated impurities from the bottom with a movable suction device; feeding the water body with inlet water to generate displacement of surface water containing impurities and surface oils and removing displaced surface water using the skimmers, the inlet water having iron and manganese levels lower than 1.5 ppm and turbidity lower than 5 NTU, wherein the process is performed without traditional filtration, wherein traditional filtration comprises filtering the volume of water once or more in 24 hours.