Appling hydrolysis acidification-anoxic-oxic process in the treatment of petrochemical wastewater: From bench scale reactor to full scale wastewater treatment plant
Appling hydrolysis acidification-anoxic-oxic process in the treatment of petrochemical wastewater: From bench scale reactor to full scale wastewater treatment plant
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水解酸化-缺氧-好氧工艺在石化废水处理中的应用：从小型反应器到大型废水处理厂
DOI：
10.1016/j.jhazmat.2016.02.007
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发表时间：
2016-05-15
影响因子：
13.6
通讯作者：
Yu, Ruozhen
中科院分区：
文献类型：
--
作者：
Wu, Changyong;Zhou, Yuexi;Yu, Ruozhen
采用水解酸化（HA）-缺氧-好氧（A/O）工艺处理某石化废水。首次在小型实验反应器上进行了操作优化。在此基础上，以6500 m3·h-1的大型石化污水处理厂为研究对象，采用相同的工艺参数进行了运行试验。结果表明，HA可使废水的BOD_5/COD由0.30提高到0.43。当进水COD为480 mg L-1时，实验室反应器出水COD为54.4 mg L-1，PC-WWTP出水COD为60.9 mg L-1。气相色谱-质谱联用仪（GC-MS）检测出的有机物含量明显降低，出水中1，3-二氧戊环、2-戊酮、异戊烯、2-氯甲基-1，3-二氧戊环和茚5种有机物的总浓度仅为0.24 mg L-1。出水无明显毒性。但发光细菌检测结果表明，该废水的急性毒性较低，需要进行深度处理。克隆文库分析表明，系统中的优势菌为酸杆菌、变形菌和拟杆菌。HA-A/O工艺适用于石化废水的处理。(C)2016爱思唯尔B. V.保留所有权利。
A hydrolysis acidification (HA)-anoxic-oxic (A/O) process was adopted to treat a petrochemical wastewater. The operation optimization was carried out firstly by a bench scale experimental reactor. Then a full scale petrochemical wastewater treatment plant (PCWWTP, 6500 m(3) h(-1)) was operated with the same parameters. The results showed that the BOD5/COD of the wastewater increased from 0.30 to 0.43 by HA. The effluent COD was 54.4 mg L-1 for bench scale reactor and 60.9 mg L-1 for PCWWTP when the influent COD was about 480 mg L-1 on optimized conditions. The organics measured by gas chromatography-mass spectrometry (GC-MS) reduced obviously and the total concentration of the 5 organics (1,3-dioxolane, 2-pentanone, ethylbenzene, 2-chloromethyl-1,3-dioxolane and indene) detected in the effluent was only 0.24 mg L-1. There was no obvious toxicity of the effluent. However, low acute toxicity of the effluent could be detected by the luminescent bacteria assay, indicating the advanced treatment is needed. The clone library profiling analysis showed that the dominant bacteria in the system were Acidobacteria, Proteobacteria and Bacteriodetes. HA-A/O process is suitable for the petrochemical wastewater treatment. (C) 2016 Elsevier B.V. All rights reserved.