【摘要】 植物修复凭借低成本和环境友好的优点,在土壤修复中担任着至关重要的角色。将营养成分高且产量巨大的市政污泥用于园林栽培基质,不仅可以降低其处置成本,还可通过植物修复降低其重金属风险。本文对污泥中重金属的含量地域分布与形态特征、草坪草的生长特性及其对重金属的富集特征进行了论述,探讨了草坪富集重金属的影响因素,为污泥资源化以及后期草坪草修复土壤重金属提供技术支撑,对深入研究污泥中重金属修复及污泥的资源化利用具有指导意义。更多还原

【Abstract】 Phytoremediation has great promise for cost-effective and eco-friendly remediation of contaminated soils.With huge production and high nutrient contents,municipal sewage sludge can serve as promising garden cultivation matrix for plant growth,which is beneficial to lessen its disposal cost and minimize the risk of heavy metal pollution.In this review,the regional distribution and speciation characteristics of heavy metals in composting sludge are discussed.Moreover,the growth characteristics of turfgrass,their abilities of heavy metal enrichment and influencing factors are presented.This review will provide a technique support for the remediation of heavy metals in sewage sludge by turfgrass,and is of great significance for resourcfulization of sewage sludge.更多还原