环境工程学报2012，Vol.6Issue(4)：1331-1336,6.
生物表面活性剂在城市污泥静态强制通风好氧堆肥中的作用
Application of biosurfactant in static forced-aeration composting of sewage sludge
摘要
Abstract
The study focused on the effect of rhamnolipid biosurfactant application on static forced-aeration composting of excess activated sludge.During the process of composting,significant changes of the temperature caused by the two treatments were defined as three stages including a mesophilic period（0~5 d）,a thermophilic period（6~12 d） and a maturing period（13~28 d）.The warming rate and the duration of high temperature of the treatment with rahmnolipid at 0.015% as well as its moisture content was higher than that of the control.The rhamnolipid addition increased the microbial population.At the end of the composting,the GI（germination index） reached 53.70% and 50.80%,respectively,indicating that addition of rahmnolipid accelerated the decreasing of the compost rhamnolipid.However,due to the enrichment effect,the heavy metal concentration was slightly higher than that of the control one.The experiment indicated that the addition of rahmnolipid can improve the microenvironment of composting,and as a result,accelerate the composting process and improve the quality of composting products.关键词
生物表面活性剂/城市污泥/好氧堆肥/鼠李糖脂Key words
biosurfactant/sewage sludge/aerobic composting/rhamnolipid分类
资源环境引用本文复制引用
晁阳,袁兴中,曾光明,梁运姗,钟华,欧阳建新..生物表面活性剂在城市污泥静态强制通风好氧堆肥中的作用[J].环境工程学报,2012,6(4):1331-1336,6.基金项目
基金项目：国家自然科学基金资助项目 （）
