Petrochemical wastewater treatment with a pilot-scale bioaugmented biological treatment system  

作　　者：ZHAO Li-jun MA Fang GUO Jing-bo ZHAO Qing-liang 

机构地区：[1]School of Chemical Engineering, China University of Petroleum, Beijing 102249, China [2]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2007年第11期1831-1838,共8页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Basic Research Program (973) of China (No. 2004CB418505);the Science and Technology Development Program of Heilongjiang Province (No. CC05S301), China

摘　　要：In solving the deterioration of biological treatment system treating petrochemical wastewater under low temperatures, bioaugmentation technology was adopted by delivering engineering bacteria into a pilot-scale two-stage anoxic-oxic (A/O) process based on previous lab-scale study. Experimental results showed that when the concentrations of COD and NH4+-N of the influent were 370~910 mg/L and 10~70 mg/L, the corresponding average concentrations of those of effluent were about 80 mg/L and 8 mg/L respectively, which was better than the Level I criteria of the Integrated Wastewater Discharge Standard (GB8978-1996). According to GC-MS analysis of the effluents from both the wastewater treatment plant (WWTP) and the pilot system, there were 68 kinds of persistent organic pollutants in the WWTP effluent, while there were only 32 in that of the pilot system. In addition, the amount of the organics in the effluent of the pilot system reduced by almost 50% compared to that of the WWTP. As a whole, after bioaugmentation, the organic removal efficiency of the wastewater treatment system obviously in- creased.In solving the deterioration of biological treatment system treating petrochemical wastewater under low temperatures, bioaugmentation technology was adopted by delivering engineering bacteria into a pilot-scale two-stage anoxic-oxic （A/O） process based on previous lab-scale study. Experimental results showed that when the concentrations of COD and NH4^＋-N of the influent were 370-910 mg/L and 10-70 mg/L, the corresponding average concentrations of those of effluent were about 80 mg/L and 8 mg/L respectively, which was better than the Level I criteria of the Integrated Wastewater Discharge Standard （GB8978-1996）. According to GC-MS analysis of the effluents from both the wastewater treatment plant （WWTP） and the pilot system, there were 68 kinds of persistent organic pollutants in the WWTP effluent, while there were only 32 in that of the pilot system. In addition, the amount of the organics in the effluent of the pilot system reduced by almost 50% compared to that of the WWTP. As a whole, after bioaugmentation, the organic removal efficiency of the wastewater treatment system obviously increased.

关 键 词：BIOAUGMENTATION Petrochemical wastewater Pilot-scale study GC/MS 

分 类 号：X703[环境科学与工程—环境工程]