期刊论文

Study on co-metabolism biodegradation of butyl xanthate

中文

环境污染与防治

1001-3865

2010

32

4

1-5

10.15985/j.cnki.1001-3865.2010.04.001

国家高技术研究发展计划（“863计划”）项目（No.2007AA062123） 国家重点基础研究发展计划（“973计划”）项目（No.2004CB619204） 湖南省科技计划项目（No.2008SK4012） 益阳市科技计划项目（No.20070202）.

本校为其他机构

微生物共代谢是降解废水中难降解有机物的重要方式.通过实验研究,比较了以丁基黄药作为唯一碳源和能源以及有共代谢基质存在下丁基黄药的降解过程.结果表明,共代谢显著提高了丁基黄药的降解率.在25 ℃条件下,以丁基黄药为唯一碳源和能源时,其降解率仅为43.1%;而利用葡萄糖作为共代谢基质,当葡萄糖质量浓度为0.20 g/L时,振荡培养72 h后丁基黄药的降解率可达65.2%;再加入微量的蛋白胨作为氮源后,丁基黄药的降解率可提高到73.5%;加入共代谢基质后微生物的适应期由原来的36 h缩短至24 h.共代谢是提高丁基黄药生物降解性能的一条有效途径.

The microorganism co-metabolism was an important mode for biodegrading the refractory organics in wastewater. The processes of butyl xanthate biodegradation with and without the existence of co-metabolism substrates were studied and compared. The experimental results showed that the presence of co-metabolism substrates significantly increased xanthate degradation. The degradation rate of butyl xantbate was 43.1% after shaking culture for 72 h at 25 ℃ with butyl xanthate as the sote source of carbon and energy. While the presence of additional ...