Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China; Zhejiang Environmental Science & Design Institute, Hangzhou, 310007, China.
J Hazard Mater. 2013 Oct 15;261:826-32. doi: 10.1016/j.jhazmat.2013.05.060. Epub 2013 Jul 9.
Anaerobic dechlorination is an effective degradation pathway of higher chlorinated polychlorinated biphenyls (PCBs). The efficiency of anaerobic composting remediation of PCB-contaminated soil using pig manure was determined. The results show that the dechlorination of PCB-contaminated soil via anaerobic composting with pig manure is feasible. PCB concentration is the most critical factor. Elevated PCB concentrations can inhibit dechlorination but does not disrupt the anaerobic fermentation process. At 1 mg kg(-1) PCBs, the degradation rate of five or more chlorinated biphenyls is 43.8%. The highest dechlorination performance in this experiment was obtained when the soil-to-organic waste ratio, carbon-to-nitrogen ratio, moisture content, and PCB concentration were 2:3, 20, 60%, and 1 mg kg(-1), respectively.
厌氧脱氯是一种有效的高氯多氯联苯（PCBs）降解途径。本文采用猪粪研究了厌氧堆肥修复 PCB 污染土壤的效果。结果表明，利用猪粪进行厌氧堆肥处理 PCB 污染土壤是可行的。其中，PCB 浓度是最关键的因素。高 PCB 浓度会抑制脱氯，但不会破坏厌氧发酵过程。当 PCB 浓度为 1mgkg-1 时，五氯及以上氯代联苯的降解率为 43.8%。在本实验中，当土壤与有机废物的比例、碳氮比、含水量和 PCB 浓度分别为 2:3、20、60%和 1mgkg-1 时，脱氯性能最高。
