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当前位置: 首页 > 文章 > 堆肥法处理含油污泥的研究 土壤学报 2009,46 (6) 1019-1025
Position: Home > Articles > TREATMENT OF OILY SLUDGE THROUGH COMPOSTING Acta Pedologica Sinica 2009,46 (6) 1019-1025

堆肥法处理含油污泥的研究

作  者：
余冬梅;骆永明;刘五星;王纯利;李振高
单  位：
中国科学院土壤与环境污染修复重点实验室(南京土壤研究所);新疆农业大学草业与环境科学学院
关键词：
含油污泥;堆肥;石油烃;降解率;生物毒性
摘  要：
通过添加稻草和有机肥对含油污泥进行了115 d的堆肥处理,动态监测了堆制过程中总石油烃含量、温度、C/N/P比例及功能微生物数量变化,测定了堆制前后石油组分和生物毒性,探讨了堆肥法处理降解油泥的效果。结果表明,堆肥处理后油泥中的总石油烃含量从123±1 g kg-1降低至71.7±0.7 g kg-1,降解率达42%,是未堆肥对照处理的2.5倍;堆体在第21天达到最高温度50℃;堆肥处理的C/N/P比例变化呈现下降趋势;堆肥过程中油泥中烃降解菌和芳烃降解菌与堆制前比较增加了近2个数量级。此外,含油污泥经堆肥法处理后生物毒性降低,EC50从1.77±0.28 mg m l-1提高至2.76±0.38 mg m l-1。
译  名：
TREATMENT OF OILY SLUDGE THROUGH COMPOSTING
作  者：
Yu Dongmei 1,2 Luo Yongming2 Liu Wuxing2 Wang Chunli1 Li Zhengao2(1 Department of Resources and Environment Sciences,Xinjiang Agricultural University,Wulumuqi 830052,China)(2 Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China)
关键词：
Oily sludge;Compost;Hydrocarbon;Degradation;Biotoxicity
摘  要：
A 115-day experiment of composting oily sludge with straw and organic manure was carried out.During the process,dynamics of total petroleum hydrocarbon(TPH) content,temperature,C/N/P ratio and population of functional microorganisms were monitored,and composition and biotoxicity of petroleum waste were analyzed before and after composting.Results show that TPH content decreased from 123±1 g kg-1 to 71.7±0.7 g kg-1,demonstrating a degradation rate of 42%,which was 2.5 times high than CK(without composting).The composting treatment reached the highest temperature,50℃ on D21 and showed a decreasing C/N/P ratio.The counts of hydrocarbon degraders and aromatic hydrocarbon degraders in the composted sludge increased by about 2 orders of magnitudes compared with those in the uncomposted sludge.Moreover,EC50 in the oily sludge increased from 1.77±0.28 mg ml-1 before composting to 2.76±0.38 mg ml-1 after composting,indicating a decrease in biotoxicity of the sludge.

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