摘要
城市污泥的产出量与日俱增,如何把这些废弃的污泥进行无害化处理并有效利用是全世界范围内亟待解决的问题。详细阐述了国内外污泥园林绿化资源化利用技术的现状以及存在的主要问题,并提出了相应对策。其中,稳定化指好氧堆肥技术,即通过控制堆肥过程温度、pH值、C/N对污泥进行前期调控;植物修复强化技术,是通过螯合剂、微生物、农艺措施方式,提高植物提取重金属速率,降低污泥施用时重金属淋滤风险。而二者联合应用,即将污泥稳定化后进行植物修复最具有前景。
The whole world have to face and solve the problem of how to treat the waste sludge harmlessly and reuse them effectively. This paper summarized the current situation of the utilization and green recycling of sludge globally as well as its main problems,and put forward corresponding countermeasures. Thereinto,the stabilization refers to the aerobic composting technology by controlling the composting process temperature,pH,and C/N,to control of sludge in early period. The phytoremediation is the most acceptable technology,by using chelants,microbes,and agronomic measures,to improve the plant extraction efficiency of heavy metals and reduce the leaching risk of sludge fertilizer. The author identified the combination of the sludge stabilization followed by vphytoremediation as the most promising method in the future.
作者
陈伊豪
李非里
徐信阳
包晓东
吴兴飞
陆敏英
CHEN Yi-hao;LI Fei-li;XU Xin-yang;BAO Xiao-dong;WU Xing-fei;LU Min-ying(Environmental College, Zhejiang University of Technology, Hangzhou 310014, China;Ningbo High-Tech Zone Chunli Energy Saving Technology Co. , Ltd, Ningbo 315040,China)
出处
《环境工程》
CAS
CSCD
北大核心
2018年第6期150-154,共5页
Environmental Engineering
基金
国家自然科学基金项目"富营养型湖泊不同分子量溶解性有机质对绿藻富集重金属行为的影响机制研究"(401273129)
关键词
污泥
资源化
园林绿化
重金属
植物修复
sludge
resource
landscaping
heavy metals
phytoremediation
