标题: Synchronous degradation of phenol and aniline by Rhodococcus sp.strain PB-1entrapped in sodium alginate-bamboo charcoal-chitosan beads

作者: Ma, XY (Ma, Xinyue); Zhou, XJ (Zhou, Xiangjun); Wei, SJ (Wei, Sijie); Ke, T (Ke, Tan); Wang, PP (Wang, Panpan); Chen, LZ (Chen, Lanzhou)

来源出版物: ENVIRONMENTAL TECHNOLOGY  DOI: 10.1080/09593330.2020.1760357  提前访问日期: MAY 2020  

摘要: The biodegradation of benzene series compounds is a difficult problem in environment pollution control, which is attributed to the deficiency of high efficiency bacteria and suitable embedding materials. In this study, the immobilized cells Rhodococcussp. strain PB-1 was used to synchronously biodegrade phenol and aniline by entrapped in sodium alginate (SA)-bamboo charcoal (BC)-chitosan acetate (CA) beads. The free cells of the strain PB-1 could completely degrade 1500 mg/L phenol or 800 mg/L aniline within 48 h, while the degradation rate of 2000 mg/L phenol and 1500 mg/L aniline was 35.76% and 68.06% at 72 h, respectively. The ortho-cleavage pathway was used to degrade phenol and aniline by strain PB-1. However, after entrapped with SA-BC-CA beads,the removal rate of 2000 mg/L phenol was 100% at 108 h, 1500 mg/L aniline was 100% at 62 h and 2000-3000 mg/L total toxic compounds was over 95% at 120 h. These beads could be used four times and were more effective than SA or SA-BC beads. The SA-BC-CA beads could remarkably improve the stability and degradation efficiency of strain PB-1, and thus provide a potential application in the removal of phenol and aniline in wastewater.

入藏号: WOS:000533732000001

语言: English

文献类型: Article; Early Access

作者关键词: Phenol; aniline; Rhodococcussp; immobilization; bamboo charcoal

地址: [Ma, Xinyue; Zhou, Xiangjun; Wei, Sijie; Ke, Tan; Wang, Panpan; Chen, Lanzhou] Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm B, Wuhan 430079, Peoples R China.

[Zhou, Xiangjun] Hubei Normal Univ, Dept Environm Engn, Hubei Key Lab Pollutant Anal & Reuse Technol, Huangshi, Hubei, Peoples R China.

通讯作者地址: Chen, LZ (通讯作者)，Wuhan Univ, Sch Resources & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm B, Wuhan 430079, Peoples R China.

电子邮件地址: chenlz@whu.edu.cn

影响因子：1.918