Petroleum refinery wastewater treatment: A pilot scale study

被引：48
作者：
El-Naas, Muftah H. [1 ]
Surkatti, Riham [2 ]
Al-Zuhair, Sulaiman [2 ]
机构：
[1] Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar
[2] UAE Univ, Chem & Petr Engn Dept, POB 15551, Al Ain, U Arab Emirates
来源：
JOURNAL OF WATER PROCESS ENGINEERING | 2016年 / 14卷
关键词：
Pilot plant; Refinery wastewater; Electrocoagulation; Biodegradation; Adsorption;
D O I：
10.1016/j.jwpe.2016.10.005
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A three-step pilot plant was designed, fabricated and tested for the treatment of highly contaminated petroleum refinery wastewater. The three-step process consisted of an electrocoagulation (EC) unit, a biological treatment in a spouted bed bioreactor (SBBR) using immobilized Pseudomonas putida in PVA particles, and an adsorption process using granular activated carbon in a packed column. The pilot plant was operated for a period of ten months at a flow rate of 1 m(3)/h, with continuous runs lasting up to 12 h. Different arrangements of the three units were tested to determine the most effective sequence. Placing the EC unit as the pretreatment step resulted in the best performance, since it reduced the COD and suspended solids, and consequently enhanced the performance of the succeeding biodegradation and adsorption units. At the optimum conditions and unit arrangement, the pilot plant was able to reduce the COD by 96% and the concentrations of phenol and cresols by nearly 100%. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：71 / 76
页数：6
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