污泥土地利用生态风险研究  

Study on the Ecological Risk of Sludge Land Utilization

作　　者：王铁楠 Wang Tienan(Environmental monitoring center,Shanghai Qingning Environmental Planning and Design Co.,Ltd,Shanghai 200051,China)

机构地区：[1]上海清宁环境规划设计有限公司,上海200051

出　　处：《广东化工》2021年第12期308-309,共2页Guangdong Chemical Industry

摘　　要：我国每年产生大量的市政污泥,市政污泥成分复杂,含有一定量的微生物、重金属、病源微生物等,如不及时妥善地进行处理,将会造成二次环境污染。此外,污泥中富含氮、磷、钾等营养元素,因此污泥具有污染和资源的双重属性。但是前面的研究多集中于污泥脱水、污泥厌氧消化、好氧堆肥等领域,缺少对于污泥的土地利用,污泥作为一种土壤改良剂的生态风险相关研究,因此,本文在以上研究背景的基础上,对污泥作为一种土壤改良剂的生态风险相关研究进行总结,以期为污泥资源化应用提供参考。China produces a large number of municipal sludge every year,municipal sludge composition is complex,contains a certain amount of microorganisms,heavy metals,and pathogenic microorganisms,if not properly handled in time,will cause secondary environmental pollution.In addition,the sludge is rich in nitrogen,phosphorus,potassium and other nutrients,so the sludge has the dual properties of pollution and resources.However,more than previous research has focused on sludge dewatering,sludge for anaerobic digestion,composting,and other fields,lack for land utilization of the sludge,the sludge as a soil conditioner the ecological risk of related research,therefore,in this paper,on the basis of the above background,the ecological risk of sludge as a soil conditioner summarizes related research,It is expected to provide reference for sludge recycling application.

关 键 词：污泥 资源化 土地利用 重金属 生态风险 

分 类 号：X825[环境科学与工程—环境工程]