四川环境2013，Vol.32Issue(4)：5-10,6.
深度脱水污泥掺混土壤改性及资源化技术研究
Modification and Resource Utilization of Advanced Dewatered Sewage Sludge with Blending Soil
摘要
Abstract
Two types of advanced dewatered sludge A and B with different moisture contents from a municipal sewage treatment plant in Shanghai were modified by mixing them with soil.The characteristics of Mended sludge in terms of moisture content,organic matters content,compressive strength,odor,and phytotoxicity were analyzed to study the feasibility of sludge as landll cover material.The results showed that the blended soil effectively luced moisture content and organic matters,enhanced compressive strength,and weakened odor and phytotoxicity of dewatered sludge.The correlation analysis showed that soil had a much stronger effect on organic matters,odor and phytotoxicity.The compressive strength increased from the initial 32.99 kPa and 196.67 kPa to 117.6 kPa and 227.5 kPa,odor intensity chopped from level 4.5 and 4 to level 2 and 1.5,and lixivium cabbage seed germination rate raised from 50％ and 56.7％ to 90％ and 80％,when soil addition dosages were 60％ and 30％for sludge A and B,respectively.The modified sludge A and B could both meet the requirements of final landfill cover material set in China,and thus could be used directly.关键词
深度脱水污泥/土壤/改性/资源化/封场覆盖绿化用土Key words
Advanced dewatered sewage sludge/ soil/ modification/ resource utilization/ final landfill cover material分类
资源环境引用本文复制引用
米琼,赵爱华,王声东,周海燕,赵由才..深度脱水污泥掺混土壤改性及资源化技术研究[J].四川环境,2013,32(4):5-10,6.基金项目
上海市科学技术委员会项目资助(11DZ0510200). （11DZ0510200）
