Cai Quan-Ying, Mo Ce-Hui, Wu Qi-Tang, Zeng Qiao-Yun, Katsoyiannis Athanasios, Férard Jean-François
College of Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
J Hazard Mater. 2007 Apr 2;142(1-2):535-42. doi: 10.1016/j.jhazmat.2006.08.062. Epub 2006 Sep 1.
The efficiency of four different composting processes to bioremediate polycyclic aromatic hydrocarbons (PAHs)-contaminated sewage sludge was investigated. Prior to composting, sewage sludge coming from the Datansha wastewater treatment plant, Guangzhou, China, was mixed with rice straw to obtain a C/N ratio of 13:1. After 56 days of composting, the total concentrations of 16 PAHs (Sigma(PAHs)) ranged from 1.8 to 10.2 mg kg(-1) dry weight, decreasing in order of inoculated-manual turned compost (IMTC)>manual turned compost (MTC)>continuous aerated compost (CAC)>intermittent aerated compost (IAC), exhibiting removal rates of 64%, 70%, 85% and 94%, respectively. Individual PAHs were generally removed in similar rates. IAC treatment showed a higher removal rate of high molecular weight PAHs and carcinogenic PAHs comparing to the other composting processes.
研究了四种不同堆肥工艺对生物修复多环芳烃（PAHs）污染的污水污泥的效率。堆肥前，将来自中国广州大坦沙污水处理厂的污水污泥与稻草混合，使碳氮比达到13:1。堆肥56天后，16种多环芳烃的总浓度（Σ(PAHs)）范围为1.8至10.2毫克/千克干重，按接种-人工翻堆堆肥（IMTC）>人工翻堆堆肥（MTC）>连续曝气堆肥（CAC）>间歇曝气堆肥（IAC）的顺序降低，去除率分别为64%、70%、85%和94%。单个多环芳烃的去除率通常相似。与其他堆肥工艺相比，IAC处理对高分子量多环芳烃和致癌多环芳烃的去除率更高。
