期刊
BIORESOURCE TECHNOLOGY
卷 273, 期 -, 页码 56-62出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.10.087
关键词
Chryseobacterium; Phenol; Phenanthrene; Hydroxypropyl-beta-cyclodextrin; Cometabolism
资金
- National Key R&D Program of China [2017YFB0602804]
- National Natural Science Foundation of China [21878164, 41802121]
- Key Scientific and Technological Project of Shanxi Province [MH2014-10]
- National Key Technology Support Program of China [2014BAC10B01]
- Qingdao University of Science and Technology
Cometabolic degradation is an effective method to remove the polycyclic aromatic hydrocarbons (PAHs) with phenol as growth substrate from coal chemical wastewater (CCW). Unfortunately, the toxicity and low solubility of PAHs always restrict their degradation. In this study, Chryseobacterium sp. H202 was firstly isolated from the erobic segment of CCW. Then, to improve the cometabolic degradation of PAHs, the effects of hydroxypropyl-beta-cyclodextrin (HPCD) were investigated. Phenanthrene removal was accelerated in the presence of phenol; however, the degradation of phenol was inhibited because of the toxicity of phenanthrene. Addition of 50 mg/L HPCD accelerated the degradation of phenol and effectively improved the phenanthrene removal rate by about 55%. Inclusion of HPCD appeared to increase the apparent solubility and reduce the toxicity of phenanthrene, thereby improving the cometabolic degradation of phenol and phenanthrene. Therefore, HPCD can enhance the degradation of phenanthrene with phenol as the growth substrate during CCW treatment.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据