Toxicity and biogas production potential of refinery waste sludge for anaerobic digestion

被引：25

作者：

Haak, Laura ^{[1
]}

Roy, Ratul ^{[1
]}

Pagilla, Krishna ^{[1
]}

机构：

[1] Univ Nevada, Dept Civil & Environm Engn, Reno, NV 89557 USA

来源：

CHEMOSPHERE | 2016年 / 144卷

关键词：

Anaerobic digestion; Anaerobic toxicity assay; Biochemical methane potential; Industrial wastes; Ozonation; IN-SITU OZONATION; DEWATERING CHARACTERISTICS; CRUDE-OIL; BIODEGRADATION; REMOVAL; OZONE; HYDROCARBONS; DEGRADATION; TOLUENE;

D O I：

10.1016/j.chemosphere.2015.09.099

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Two waste streams from an oil refinery wastewater treatment system, float from a dissolved air flotation unit (DAF sludge) and waste activated sludge (WAS), were investigated to determine toxicity and biogas production potential for anaerobic digestion through batch testing methods. Ozonation as a pretreatment was investigated to observe the impacts of waste solubilization on both toxicity and biodegradability. Anaerobic toxicity assays resulted in no detectible inhibition from WAS, neither with nor without ozonation. Untreated DAF sludge exhibited inhibition that amplified with the increases in DAF sludge inclusion. Ozone treatment effectively reduces this inhibition. The biodegradability of WAS, measured by biochemical methane potential tests, doubled with low dose ozonation. DAF sludge biodegradability was negligible prior to treatment and was successfully enhanced through ozonation. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：1170 / 1176

页数：7

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