超临界水氧化法降解甲胺磷的研究  

Study on degradation of methaminophos by supercritical water oxidation

作　　者：林春绵[1] 袁细宁[1] 杨馗[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,杭州市310032

出　　处：《环境科学学报》2000年第6期714-718,共5页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金! (2 96770 1 5)资助

摘　　要：实验研究了典型有机磷农药甲胺磷在超临界水中的氧化降解 .结果表明 ,超临界水氧化技术能有效地降解甲胺磷 ,COD去除率最高可达 97%以上 .随着反应温度的升高、压力的增大、停留时间的延长和初始废水浓度的增大 ,COD去除率也随之提高 .甲胺磷在超临界水中氧化降解的动力学方程为 :-d[COD]/dτ =8 69× 1 0 5exp(- 9 61 ×1 0 4 /RT) [COD]1 0 9[O2 ]0 - 0 38.The oxidative decomposition of methamidophos (organic phosphate pesticide) in supercritical water (SCW) is studied in this paper. The results show that methamidophos can be decomposed effectively by supercritical water oxidation (SCWO), and the maximum of COD removal rate reachs 97% and more. The COD removal rate increase with the addition of temperature, pressure and residence time. The oxidative decomposition dynamic equation of methamidophos in SCW is established as follow: -d\ / d τ=8 69×10 5 exp (-9 61×10 4/RT) \ 1 09 \ 0 -0 38 .

关 键 词：超临界水氧化 甲胺磷 降解 动力学 废水处理 

分 类 号：X780.31[环境科学与工程—环境工程]