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KMID : 0380020030180030211
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 3 p.211 ~ p.216
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Removal of Dissolved Organic Matter by Ozone-biological Activated Carbon Process
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Lee Sang-Hoon
Moon Soon-Sik
Shin Jong-Chul
Choi Kwang-Geun
Shim Sang-Jun
Park Dae-Won
Lee Jin-Won
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Abstract
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The removal yield of dissolved organic matter in drinking water by biological activated carbon (BAC) process was investigated. The tested processes wer raw water-AC process (BAC1), raw water-ozonation-BAC process (BAC2), and raw water-ozonation-coagulation/sedimentation-BAC process (BAC3). The amounts of organic matter was measured as dissolved organic carbon (DOC), ulta-violet radiation at 254 nm wavelength (), total nitrogen (T-N), ammonia nitrogen (-N), and total phosphate (T-P). As a results, 30.7% DOC was removed by BAC2 process, which showed higher removal efficiency than BAC1 or BAC3 processes. The removal yield of in BAC1, BAC2, and BAC3 processes were observed as 45.3%, 44.6%, 58.4%, respectively. And the removal yield of ammonia nitrogen were 66%, 81%, 29% in each BAC processes. The optimal empty bed contact time (EBCT) of BAC processes was estimated as 10 minute. This study has shown that BAC process combined with ozone treatment was efficient for removing dissolved organic matter in water.
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KEYWORD
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Biological activated carbon, drinking water treatment, dissolved organic carbon, ozonation
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