Acute toxicity reduction and toxicity identification in pigment-contaminated wastewater during anaerobic-anoxic-oxic (A/A/O) treatment process

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• 作者：Minjie Deng^a ; Ying Zhang^a ; Xie Quan^a ; ^{quanxie@dlut.edu.cn} ; Chunhong Na^a ; Shuo Chen^a ; Wei Liu^a ; Shuping Han^b ; Shigeki Masunaga^b
• 关键词：Pigment-contaminated wastewater ; Acute toxicity ; GC-MS ; Semi-quantitative analysis ; Organic toxicants
• 刊名：Chemosphere
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：168
• 期：Complete
• 页码：1285-1292
• 全文大小：812 K
• 卷排序：168

文摘

The raw pigment-contaminated influent showed acute toxicity. The final effluent through A/A/O process still showed acute toxicity to D. magna and D. rerio. A mass of N-containing toxicants were detected in the pigment-contaminated wastewater. Semi-quantitatively analysis of 9 specific toxicants was performed with GC-MS. N-containing refractory toxicants were identified as the major acute toxicity source.