Direct Cr (VI) bio-reduction with organics as electron donor by anaerobic sludge

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• 作者：Jin Qian^a ; ^b ; ^c ; ^{qianjin131@yahoo.com.hk} ; Junmei Zhou^a ; Lianlian Wang^b ; Li Wei^d ; Qin Li^e ; Dongbo Wang^f ; Qilin Wang^f ; ^{q.wang@awmc.uq.edu.au}
• 关键词：Biological Cr (VI) removal ; Direct Cr (VI) bio-reduction ; pH ; Microbial analysis ; Toxicity
• 刊名：Chemical Engineering Journal
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：309
• 期：Complete
• 页码：330-338
• 全文大小：1408 K
• 卷排序：309

文摘

Highest direct Cr(VI) bio-reduction activity is achieved at pH 8.0. Direct Cr(VI) bio-reduction activity decreased with increased Cr(VI) concentration. Direct Cr(VI) bio-reduction rate is slower than the indirect one. Direct Cr(VI) bio-reduction at 1.0 mg Cr (VI)/L/h is demonstrated in UASB reactor. Desulfovibrio, Ochrobactrum and Anaerovorax cause direct Cr(VI) bio-reduction.