Remediation of pyrene-contaminated soil by a combined process with electro-Fenton and bioremediation
XU Wen-di1, GUO Shu-hai2,3, LI Gang2,3, WU Bo2,3, LI Feng-mei2,3
1. Shcool of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China;
2. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
3. National-local Joint Engineering Laboratory of Contaminated Soil Remediation by bio-physicochemical Synergistic Process, Shenyang 110016, China
The electro-Fenton (EF) process combined with bioremediation (BIO) process was established for pyrene (Pyr) contaminated soil. Two factors including degradation characteristics as well as environmental parameters were compared between EF and BIO processes. Optimal process order was determined by a series batch tests of parameters, such as the effects of removal rate, degradation efficiency, concentration of ·OH radical, biomass, and the pH value. The results showed EF process followed by BIO process was the optimum process order, the removal efficiency of Pyr was almost 50% higher than each single process. After 72h of reaction time, Pyr removal efficiency of the EF-BIO combined treatment process was still high of 91.02%.
徐文迪, 郭书海, 李刚, 吴波, 李凤梅. 电芬顿—生物泥浆法联合修复芘污染土壤[J]. 中国环境科学, 2019, 39(10): 4247-4253.
XU Wen-di, GUO Shu-hai, LI Gang, WU Bo, LI Feng-mei. Remediation of pyrene-contaminated soil by a combined process with electro-Fenton and bioremediation. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(10): 4247-4253.
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