| 曝气吹脱法去除水中三氯乙烷的试验研究 |
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| 作者姓名： | 冯丽清 邬美晴 陈诚 黄天笑 董玉莲 |
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| 作者单位： | 广州市自来水公司,广东 广州,510160 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2008ZX07420-005） |
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| 摘 要： | 研究了曝气吹脱法对水中1,1,1-三氯乙烷和1,1,2-三氯乙烷的去除效果。结果表明,曝气吹脱法对水中1,1,1-三氯乙烷具有理想的去除效果,但是对1,1,2-三氯乙烷的去除效果很差;当曝气量为0.4～1.0 L/min,气水比为3～5时,能将初始质量浓度为5倍国家标准限值的1,1,1-三氯乙烷降低至《生活饮用水卫生标准》(GB 5749—2006)限值以内;在相同曝气量条件下,气水比越大,对1,1,1-三氯乙烷的去除效果越好。
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| 关 键 词： | 曝气吹脱 曝气流量 气水比 三氯乙烷 |
Experiment of trichioroethane removal in water by aeration stripping method |
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| Authors: | Feng Liqing Wu Meiqing Chen Cheng Huang Tianxiao Dong Yulian |
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| Affiliation: | ( Guangzhou Water Supply Co., Guangzhou 510160, China) |
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| Abstract: | The removal effects of 1, 1, 1 - trichloroethane and 1, 1,2 - trichloroethane in water by aeration stripping method were studied. The results showed that aeration stripping method had satisfied removal effect on 1, 1, 1 - trichloroethane, but it had bad removal effect on 1, 1,2 - trichloroethane. The initial concentration of 1, 1, 1 - trichloroethane which was 5 times of state standard limit value could be reduced below the limit value of Standards for Drinking Water Quality（ GB 5749--2006 ） when aeration flow was 0.4 to 1.0 L/min and gas-water ratio was 3 to 5. The greater of gas-water ratio was, the better of 1, 1, 1 - trichloroethane removal effect was with the same aeration flow conditions. |
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| Keywords: | aeration stripping aeration now gas-water ratio trichloroethane |
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