Title: Study on the Steady Operation of Ozone/Biological Activated Carbon Process
Abstract: The use of source water with different water quality in waterworks results in the instability of treated water quality, and the finished water treated by conventional process fails to reach the safe drinking water standard. By making pilot-scale test, the stability of advanced treatment process (ozone/biological activated carbon (BAC)) for drinking water was investigated. When Yellow and Luanhe river water were taken as source water, the acceptable rate of COD_ Mn3 mg/L in treated water was 93.3% and 99.0% respectively, with the removal rate of 41.5% and 50.2% respectively for COD_ Mn, the removal rate of 42.5% and 50.9% respectively for TOC, and 57.8% and 77.6% respectively for UV_ 254. For the source water taken from the Yellow River, the lower organics removal rate was attributed to different organics species in water. All synthetic indexes show that ozone/BAC process can remove about 50% organics from water, and thus improving the safety of treated water. When TOC is less than 3 mg/L and SUVA_ 254 less than 2 L/(mgDOC·m) in treated water, less tetrachloro-methane and trichloro-methane are formed after disinfection, which is far lower than the specified limit. This method can be used for indirect monitoring of tetrachloro-methane and trichloro-methane produced by disinfection.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 1
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