| Removal of disinfection by-product formation potentials by biologically assisted GAC treatment |
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| 作者姓名： | 安东 Li Weiguang Cui Fuyi Wang Rui |
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| 作者单位： | [1]School of Municipal ＆ Environmental Engineering, Harbin Institute of Technology, Harbin 150090, P.R. China [2]Shanghai Waterworks Shibei Co. LTD, Shanghai 200086, P.R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The object of this paper is to evaluate the removal of disinfection by-products formation potential by artificially intensified biological activated carbon（BAC） process which is developed on the basis of traditional ozone granular activated carbon （GAC）. The results show that 23.1% of trihalomethane formation potential （THMFP） and 68% of haloacetic acid formation potential （HAAFP） can be removed by BAC, respectively. Under the same conditions, the removal rates of the same substances were 12.2% and 13-25% respectively only by GAC process. Compared with GAC, the high removal rates of the two formed potential substances were due to the increasing of bioactivity of the media and the synergistic capabilities of biological degradation cooperating with activated carbon adsorption of organic compounds. BAC process has some advantages such as long backwashing cycle time, low backwashing intensity and prolonged activated carbon lifetime, etc.
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| 关 键 词： | 生物活性碳 三卤甲烷 水处理 消毒 GAC处理 |
| 收稿时间： | 2005-01-08 |
Removal of disinfection by-product formation potentials by biologically assisted GAC treatment |
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| An Dong,Li Weiguang,Cui Fuyi,Wang Rui.Removal of disinfection by-product formation potentials by biologically assisted GAC treatment[J].High Technology Letters,2006,12(1):91-96. |
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| Authors: | An Dong Li Weiguang Cui Fuyi Wang Rui |
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| Abstract: | The object of this paper is to evaluate the removal of disinfection by-products formation potential by artificially intensified biological activated carbon(BAC) process which is developed on the basis of traditional ozone granular activated carbon (GAC). The results show that 23.1% of trihalomethane formation potential (THMFP) and 68% of haloacetic acid formation potential (HAAFP) can be removed by BAC,respectively. Under the same conditions, the removal rates of the same substances were 12.2% and 13-25 % respectively only by GAC process. Compared with GAC, the high removal rates of the two formed potential substances were due to the increasing of bioactivity of the media and the synergistic capabilities of biological degradation cooperating with activated carbon adsorption of organic compounds. BAC process has some advantages such as long backwashing cycle time, low backwashing intensity and prolonged activated carbon lifetime, etc. |
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| Keywords: | biological activated carbon ( BAC ) trihalomethane ( THM ) haloacetic acid (HAA)empty bed contact time (EBCT) water treatment |
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