Biodegradation of phenolic compounds from coking wastewater by immobilized white rot fungus Phanerochaete chrysosporium
Biodegradation of phenolic compounds from coking wastewater by immobilized white rot fungus Phanerochaete chrysosporium
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DOI：
10.1016/j.jhazmat.2008.10.091
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发表时间：
2009-06-15
影响因子：
13.6
通讯作者：
Zhang, Jianfa
中科院分区：
文献类型：
--
作者：
Lu, Yong;Yan, Lianhe;Zhang, Jianfa
利用意大利杨木屑固定化白腐菌Phanerochaete chrysosporium，对焦化废水中的酚类化合物进行了生物降解研究。固定化真菌，用真空冷冻干燥器干燥。保存9个月后仍保持较高活性，易于活化驯化。固定化真菌在6d内对酚类化合物和COD的降解率分别为87.05%和72.09%，明显高于游离菌。对于酚类化合物的生物降解，pH值在4.0至6.0之间，温度在28℃至37℃之间产生合适的条件，最适温度分别为5.0℃和35℃。在3d内，酚类化合物的最佳去除效率可达84%以上，COD的最佳去除效率可达80%。酚类化合物的生物降解符合一级反应动力学。该方法是一种高效、简便的焦化废水处理方法。(C)2008爱思唯尔B.V.保留所有权利。
A white rot fungus Phanerochaete chrysosporium, immobilized with the wood chips of Italian poplar, was employed for biodegradation of phenolic compounds in coking wastewater. The immobilized fungus, dried by vacuum freeze desiccator. was kept high activity after a 9-month preservation and easy to be activated and domesticated. The removal rates of phenolic compounds and COD by immobilized fungus were 87.05% and 72.09% in 6 days, which were obviously higher than that by free fungus. For phenolic compounds biodegradation, a pH ranging from 4.0 to 6.0 and a temperature ranging from 28 C to 37 degrees C create suitable conditions, and optimum 5.0 and 35 degrees C. respectively. The optimum removal rate of phenolic compounds was over 84% and COD was 80% in 3 days. And the biodegradation of phenolic compounds followed the first-order kinetics. It is an efficient and convenient method for coking wastewater treatment. (C) 2008 Elsevier B.V. All rights reserved.