Title:
HIGHLY ADVANCED WATER PURIFYING TREATMENT METHOD
Document Type and Number:
Japanese Patent JP3201077
Kind Code:
B2
Abstract:
PURPOSE: To provide a highly advanced water purifying treatment method by which trihalomethanes where the halogen include chloline or bromine are removed highly efficiently.
CONSTITUTION: Regarding a highly advanced water purifying treatment method involving an ozone treatment and a granular activated carbon treatment added to water purifying treatment steps including a flocculation and precipitation step, a sand-filtration step, and a chlorine sterilization step, the chloride ion concentration in practical raw water is monitored continuous by a chloride ion concentration monitor 8. When the concentration is high, the granular activated carbon treatment in the highly advanced purifying treatment method is carried out in two processes; in a biological activated carbon treatment tank 3 and in a granular activated carbon adsorption treatment tank 7.
Inventors:
Masato Ohnishi
Keiko Miyamori
Keiko Miyamori
Application Number:
JP17240193A
Publication Date:
August 20, 2001
Filing Date:
June 18, 1993
Export Citation:
Assignee:
Hitachi Plant Construction Co., Ltd.
International Classes:
C02F3/06; B01D21/01; B01D24/12; B01D24/22; C02F1/28; C02F1/52; C02F1/78; C02F9/00; (IPC1-7): C02F9/00; C02F1/28; C02F1/52; C02F1/78; C02F3/06
Domestic Patent References:
| JP4145998A | ||||
| JP62180788A | ||||
| JP4334593A |
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