Nassau, Bahamas
Nassau Waterworks Station, Bahamas, 2006
The city’s population is 170 thousand people.
Bahamas Water & Sewerage Corporation, carries out second disinfection of drinking water using oxidants solution produced in AQUACHLOR devices. Daily output of drinking water at Nassau station is 10 thousand m3/24 hours.
5 AQUACHOR -500 devices operate at the station since 2006 each producing 0,5 kg/h. 2 devices operate permanently, the other 3 – in reserve. The devices are used at one of five waterworks stations of the city for second chlorination of water before supplying it to consumers. Gaseous oxidants mix with water in ejector mixer and then the oxidants solution is supplied to the water to be disinfected.
Schematic diagram of water treatment at Nassau Waterworks Station
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| Chlorine cylinders | Old chlorination room at Nassau Waterworks Station, Bahamas, 2006. |
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| Chlorine doser | Hypochlorite input system |
Water was disinfected by chlorine gas in cylinders. An attempt to increase safety of chlorination process by way of transition from chlorine gas to concentrated hypochlorite solution resulted in water quality deterioration. Therefore use of hypochlorite was stopped and water returned to be disinfected by chlorine gas.
Since chlorine gas was replaced by AQUACHLORs water disinfection quality significantly increased, water’s organoleptic characteristics improved, biofilms on the inner surface of tubing were destroyed. Application of AQUACHLOR devices allowed to entirely exclude all risks connected with water chlorination process. Installation of AQUACHLOR systems at all Waterworks Stations of the city is in sight.
Five AQUACHLOR-500 devices instead of chlorine cylinders provide drinking water disinfection supplied to Nassau. Bahamas, 2006.
Salt storage, brine preparation and storage tanks, hydrochloric acid preparation and storage tanks, catholyte collecting tank are stationed out of chlorination room at a specially equipped ground. Bahamas, Nassau, 2006.
Bahamas, Nassau, 2006. Waterworks Station. Five AQUACHLOR-500 systems and support equipment layout.
Pump house of Nassau Waterworks Stations, Bahamas, 2006
Power connection to five AQUACHLOR-500 devices
