Treatment of coke wastewater in a sequential batch reactor (SBR) at pilot plant scale

被引：131
作者：
Maranon, E. [1 ]
Vazquez, I. [1 ]
Rodriguez, J. [1 ]
Castrillon, L. [1 ]
Fernandez, Y. [1 ]
Lopez, H. [1 ]
机构：
[1] Univ Oviedo, Higher Polytech Sch Engn, Dept Chem & Environm Engn, Gijon 33204, Spain
来源：
BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 10期
关键词：
coke wastewater; phenols; thiocyanate; aerobic treatment; SBR;
D O I：
10.1016/j.biortech.2007.08.081
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Coke wastewater is a highly toxic industrial effluent which is usually treated by a combination of physico-chemical and biological treatments. With the aim of completing prior studies carried out in CSTR, in this work we studied the treatment of coke wastewater in a pilot plant equipped with a 400 L stripping tank, a 350 L neutralization/homogenization tank and a 6 m high 1500 L sequential batch reactor (SBR), controlled by a PLC. Ammonia stripping efficiencies of 96% were obtained for HRT of 66 h. The biological treatment in the SBR led to removal efficiencies of 85% COD, 98% thiocyanate and 99% phenols for HRT of 115 h. Final concentrations in the effluent of 1.8 mg phenols/L, 5.4 mg SCN/L, 206 mg COD/L and 78 mg N-NH4+/L were obtained. (C) 2007 Elsevier Ltd. All rights reserved.
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页码：4192 / 4198
页数：7
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