CAJ | 학술논문

本文采用化学法对污泥进行处理,以污泥脱水率和污泥中重金属离子去除率为指标,对比了硫酸和柠檬酸的处理效果。结果表明,硫酸和柠檬酸对城市污水中污泥的处理程度和侧重点不同,处理效果各有优势。柠檬酸能够有效的将污泥中的重金属离子汞与铅脱除,硫酸能够除去污泥中大部分的重金属离子而对上述两种金属离子的脱除效率偏低。本文在此基础上设计了一套分段处理工艺,取得了可以适用于城市污水中污泥处理较好效果的数据。
본문채용화학법대오니진행처리,이오니탈수솔화오니중중금속리자거제솔위지표,대비료류산화저몽산적처리효과。결과표명,류산화저몽산대성시오수중오니적처리정도화측중점불동,처리효과각유우세。저몽산능구유효적장오니중적중금속리자홍여연탈제,류산능구제거오니중대부분적중금속리자이대상술량충금속리자적탈제효솔편저。본문재차기출상설계료일투분단처리공예,취득료가이괄용우성시오수중오니처리교호효과적수거。
The presented paper dealt with the dispose of sludge. The efficiencies of removing water and heavy metals from the sludge by sulfuric acid or citric acid under different conditions were investigated. The results showed that sulfuric acid was more capable of extracting water and most of the heavy metals, while Hg ions and Pb ions were much more easily removed by citric acid. Based on the results obtained above, a novel method of disposing the sludge was proposed, in which it would be reacted with citric acid firstly, followed by the treatment by sulfuric acid, and a satisfying result was reached.