中小型河流点源任意点排放污染带特征参数LM、LB确定研究  

Study on L_M and L_B of Characteristic Parameters of Pollutant Zone Caused by Random Point Sources of Middle and Small Rivers

作　　者：戴本林[1] 华祖林[1] 褚克坚[1] 贺玉龙[2] 

机构地区：[1]河海大学环境科学与工程学院,江苏南京210098 [2]西南交通大学环境科学与工程学院,四川成都610031

出　　处：《节水灌溉》2009年第1期22-23,30,共3页Water Saving Irrigation

基　　金：国家自然科学基金资助项目(50679019,50009001);江苏省社会发展科技计划项目(BS2006095);江苏“908”专项基金资助项目(JS-908-02-06)

摘　　要：以中小型河流为研究对象,通过对稳态的水平二维移流扩散方程解析解的分析,导出任意连续点源排放污染带特征参数LM、LB的计算公式。在考虑中心和岸边排放特殊情况下的计算公式与Fischer等人推导的公式一致。此研究将有助于排污单位和水质管理部门科学决策污水处理程度和最佳排放方式,以达到污水排放最优化管理。Taking the middle and small rivers as study object, according to the analysis of the analytical solutions ot steady horizontal two-dimensional diffusion equation, the calculation formula for characteristic parameters LM and LB of random continuous point sources pollution emissions is derived in this paper. The formula under the condition of considering emissions from the special circumstances of the center and the shore is agreed with the one derived by Fischer. This study will help the sewage and water management departments to scientifically decide the sewage treatment level and the best discharge type to achieve the optimal management of sewage discharge.

关 键 词：中小型河流 二维 任意点源 特征参数 

分 类 号：TV131.4[水利工程—水力学及河流动力学] X522[环境科学与工程—环境工程]