摘要
清淤淤泥资源化是河湖生态清淤顺利推进的重要保证之一。以黄石市某湖泊清淤淤泥为研究对象,对其用于园林绿化的可行性进行分析。研究表明,淤泥资源化利用目标地块土壤重金属含量达到Ⅱ级绿地的技术要求;淤泥泥质总体符合GB/T 23486—2009《城镇污水处理厂污泥处置园林绿化用泥质》绿化用土要求,淤泥有机质含量符合CJ/T 340—2016《绿化种植土壤》要求;淤泥养分含量偏低,但可通过施肥予以补充;淤泥用于园林绿化的环境风险水平可接受。总体而言,该湖泊清淤淤泥可用于园林绿化。
The utilization of dredging sludge is one of the important guarantees for ecological dredging of rivers and lakes.This study analyzed the feasibility of desilting sludge of a lake in Huangshi City for landscaping.The results showed that the content of heavy metals in the soils of the plot,where sludges planned to be utilized,meets the technical requirements of Grade II of green land.The sludge quality generally meets the requirements of GB/T 23486—2009"Disposal of sludge from municipal wastewater treatment plant—quality of sludge used in gardens or parks",and the organic matter contents of the sludge meets the requirements of CJ/T 340—2016"Plant soil for greening".The deficiency of nutrient of the sludge can be overcame by fertilization.Furthermore,the environmental risk level of sludge used for landscaping is acceptable.Overall,the desilting sludge of the lake can be used for landscaping.
作者
何艳兵
吴宏涛
HE Yanbing;WU Hongtao
出处
《上海化工》
CAS
2022年第2期31-35,共5页
Shanghai Chemical Industry
基金
湖北省教育厅科学技术研究项目(D20202503)
污染物分析与资源化技术湖北省重点实验室(湖北师范大学)资助项目(PA200207)。
关键词
清淤淤泥
资源化利用
园林绿化
风险评估
Dredging sludge
Resource utilization
Landscaping
Risk assessment
