Determination of biological removal of recalcitrant organic contaminants in coal gasification waste water

被引：20

作者：

Ji, Qinhong ^{[1
]}

Tabassum, Salma ^{[1
]}

Yu, Guangxin ^{[2
]}

Chu, Chunfeng ^{[1
]}

Zhang, Zhenjia ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

[2] China Natl Offshore Oil Corp, Res Inst, New Energy Res Ctr, Beijing 100028, Peoples R China

来源：

ENVIRONMENTAL TECHNOLOGY | 2015年 / 36卷 / 22期

关键词：

coal gasification waste water; organic contaminants; phenolic compounds; intermittent; GC; MS; NITRIFICATION; INHIBITION; PHENOL;

D O I：

10.1080/09593330.2015.1049215

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Coal gasification waste water treatment needed a sustainable and affordable plan to eliminate the organic contaminants in order to lower the potential environmental and human health risk. In this paper, a laboratory-scale anaerobic-aerobic intermittent system carried out 66 operational cycles together for the treatment of coal gasification waste water and the removal capacity of each organic pollutant. Contaminants included phenols, carboxylic acids, long-chain hydrocarbons, and heterocyclic compounds, wherein the relative content of phenol is up to 57.86%. The long-term removal of 77 organic contaminants was evaluated at different hydraulic retention time (anaerobic24h+aerobic48h and anaerobic48h+aerobic48h). Contaminant removal ranged from no measurable removal to near-complete removal with effluent concentrations below the detection limit. Contaminant removals followed one of four trends: steady-state removal throughout, increasing removal to steady state (acclimation), decreasing removal, and no removal. Organic degradation and transformation in the reaction were analysed by gas chromatography/mass spectrometry technology.

引用

页码：2815 / 2824

页数：10

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