CAJ | 학술논문

文章以历史遗留含砷冶炼废渣场渗滤液为研究对象，采用两段硫代硫酸钠法进行无害化处理，出水水质可达到 GB8978-1996《污水综合排放标准》一级标准要求，消除安全隐患，以期对历史遗留含重金属废渣场治理提供科学依据。絮凝沉淀池为钢制设备，可拆卸再利用，具有较高的社会、环境、经济效益。
문장이역사유류함신야련폐사장삼려액위연구대상，채용량단류대류산납법진행무해화처리，출수수질가체도 GB8978-1996《오수종합배방표준》일급표준요구，소제안전은환，이기대역사유류함중금속폐사장치리제공과학의거。서응침정지위강제설비，가탁사재이용，구유교고적사회、배경、경제효익。
The two-stage sodium thiosulfate method was applied in innoxious treatment of arsenic leachate from nonferrous metal smelting slag left over by history,and the quality of effluent met the requirements of first grade effluent of Integrated Wastewater Discharge Standard (GB8978-1996)with no potential safety hazards.This paper focused on the arsenic leachate from nonferrous metal smelting slag and attempted to provide scientific basis for management of heavy metal smelting slag left over by history.Flocculation and sedimentation tank was made of steel,which could be dismantled and recycled,therefore the social,environ-mental and economic benefits were quite notable.