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当前位置: 首页 > 文章 > 三氯乙烯厌氧降解颗粒污泥影响因素分析 东北农业大学学报 2014 (11) 52-58
Position: Home > Articles > Research on influencing factors of trichloroethylene(TCE) anaerobic degradation granular sludge Journal of Northeast Agricultural University 2014 (11) 52-58

三氯乙烯厌氧降解颗粒污泥影响因素分析

作  者：
张颖;刘洋;李娟;胡淼;王薪
单  位：
东北农业大学资源与环境学院
关键词：
三氯乙烯;厌氧降解颗粒污泥;温度;pH;TCE初始浓度
摘  要：
通过在上流式厌氧污泥床(UASB)反应器成功驯化TCE厌氧降解颗粒污泥,于小瓶中进行温度、p H和TCE浓度等对TCE厌氧降解颗粒污泥降解特性影响的试验研究。结果表明,35℃是颗粒污泥最适温度,降解速率常数为0.1879,半衰期为3.69 d,TCE降解率为90.15%;颗粒污泥最适p H为7.2,降解速率常数为0.1672,半衰期为4.15 d,TCE降解率为88.74%;在温度为35℃,p H 7.2条件下,试验浓度范围内(14.6~73.0 mg·L-1),TCE初始浓度越小,降解速率越快,降解率越大;当TCE浓度达到73 mg·L-1时,TCE厌氧降解颗粒污泥仍能以较高速率降解TCE,14 d后TCE均可被有效去除,最终降解率在80%以上。
译  名：
Research on influencing factors of trichloroethylene(TCE) anaerobic degradation granular sludge
作  者：
ZHANG Ying;LIU Yang;LI Juan;HU Miao;WANG Xin;School of Resources and Environmental Science, Northeast Agricultural University;
关键词：
trichloroethylene;;anaerobic degradation granular sludge;;temperature;;p H;;initial TCE concentration
摘  要：
Acclimation of trichloroethylene(TCE)-degrading anaerobic granular sludge was successful by using upflow anaerobic sludge blanket(UASB) reactor. The influences of temperature, p H and initial concentration of TCE on the degradation characteristics of TCE-degrading anaerobic granular sludge were investigated in serum bottles. The results showed that 35 ℃ was the optimum temperature of the granular sludge, the degradation rate constant was 0.1879, the half-life was 3.69 d, and the TCE degradation rate was 90.15%; 7.2 was the optimum p H of granular sludge, the degradation rate constant was 0.1672, the halflife was 4.15 d, and the TCE degradation rate was 88.74%; Under the conditions of temperature of 35 ℃, p H of 7.2, and the TCE test concentration range from 14.6 to 73.0 mg · L-1, the smaller the initial TCE concentration was, the faster the degradation rate was; When TCE concentration was 73 mg · L-1, TCEdegrading anaerobic granular sludge still had higher ability to degrade TCE. After 14 d, TCE could be effectively removed and the final TCE degradation rate was over 80%.

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