| 臭氧-生物活性炭组合工艺中最佳臭氧投加剂量的确定 |
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| 引用本文： | 孔令宇,张晓健,王占生. 臭氧-生物活性炭组合工艺中最佳臭氧投加剂量的确定[J]. 环境科学, 2006, 27(7): 1345-1347 |
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| 作者姓名： | 孔令宇 张晓健 王占生 |
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| 作者单位： | 清华大学环境科学与工程系,北京,100084 |
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| 摘 要： | 在水处理过程中投加臭氧,可提高饮用水的可生物降解性.臭氧氧化后继的生物过滤,可以减少水中可生物降解有机物数量,提高饮用水的生物稳定性.试验表明,臭氧投加量2～8mg/L可使AOC-P17,AOC-NOX和BDOC分别增加20.9%～85.5%,42.1%～158.2%和21.4%～84.4%.臭氧投加量为3mg/L时,AOC和BDOC增加得最多,即3mg/L的臭氧投量为最佳投加剂量.生物活性炭滤柱(BAC)出水AOC浓度(乙酸碳)均低于50μg/L,在35.9～46.6μg/L之间,属于生物稳定性水质.
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| 关 键 词： | 臭氧-生物活性炭 臭氧化 臭氧投加量 生物稳定性 可生物同化有机碳 可生物降解溶解性有机碳 |
| 文章编号： | 0250-3301（2006）07-1345-03 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005-04-132005-05-31 |
Determination for Optimal Ozone Dose in O_3-BAC |
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| KONG Ling-yu,ZHANG Xiao-jian and WANG Zhan-sheng. Determination for Optimal Ozone Dose in O_3-BAC[J]. Chinese Journal of Environmental Science, 2006, 27(7): 1345-1347 |
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| Authors: | KONG Ling-yu ZHANG Xiao-jian WANG Zhan-sheng |
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| Affiliation: | Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The ozonation can increase biodegradability of water and the biofilter after ozonation can increase biostability of water. The result shows that with different doses of ozone between 2 and 8 mg/L, ozonation can increase AOC-P17, AOC-NOX and BDOC by 20.9%-85.5%, 42.1%-158.2% and 21.4%-84.4%, respectively. The optimum ozone dose for maximum AOC and BDOC formation is 3 mg/L. In the test, the AOC of effluent from BAC is lower than 50 microg/L (acetate-C). The AOC concentration is between 35.9 and 46.6 microg/L (acetate-C), and the effluent belongs to biostability. |
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| Keywords: | O_3-BAC ozonation ozone doses biostability AOC BDOC |
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