超临界水氧化降解垃圾渗滤液的研究  

Study on Degradation of Landfill Leachate by Supercritical Water Oxidation

作　　者：陶雪文 林春绵[2] 王海龙 郑启富[3] 

机构地区：[1]浙江省安全工程与技术研究重点实验室浙江省安全生产科学研究所,浙江杭州310012 [2]浙江工业大学生环学院,浙江杭州310014 [3]衢州学院,浙江衢州324000

出　　处：《浙江化工》2011年第11期24-26,23,共4页Zhejiang Chemical Industry

摘　　要：实验研究了垃圾渗滤液在超临界水中的氧化降解。结果表明,超临界水氧化(SCWO)技术能有效地降解垃圾渗滤液(CODCr1555～7585 mg/L、TOC947.5～1788 mg/L、TN1834～4166 mg/L),在24 MPa、390℃～440℃、停留时间16.3 s～36.0 s的条件下,其CODCr、TOC和TN的去除率可分别达到90.7%、68.1%和57.9%,可生化性有所提高,而且脱色除臭效果良好。The oxidated decomposition of landfill leachate in supercritical water （SCW） was studied. The results showed that organic pollutants in landfill lcachate （CODc, 1555～7585 mg/L,TOC 947.5～1788 mg/L,TN 1834 ,～4166 mg/L） could be decomposed effectively by supercritical water oxidation （SCWO）. Under SCWO conditions, the removal rates of CODc, , TOC and TN of landfill leachate could reach 90.7%, 68.1% and 57.9%, respectively,its biodegradability could l？e raised and its color and fetor were got rid of effectively at a pressure of 24 MPa, temperature of 390 °C～440 °C, and reactor residence time of 16.3～36.0 s.

关 键 词：超临界水氧化 垃圾渗滤液 降解 

分 类 号：X703[环境科学与工程—环境工程]