【摘要】 污水处理厂污泥的处置是当前环境科学中要解决的重要课题。污泥的农林处置与利用 ,要解决以下三个主要问题 :1、污泥中重金属能否造成土壤及作物的二次污染 ;2、污泥中病原体能否对环境造成影响 ;3、氮磷等物质 ,浓度过高能否对地下水造成污染 ,本文针对这三个问题 ,进行国内外研究工作综述。更多还原

【Abstract】 Sludge disposal of wastewater treatment plant is an important subject in environmental science.Three problems of disposal and utilization of sludge are necessary to be solved:1.Can the heavy metals in sludge result in second pollution to soil and crops?2.Whether pathogens effect environment or not?3.Can nitrogen and phosphorus of high concentration pollute the groundwater?The situations of external and internal researches which mentioned three problems were summarized in this paper.更多还原