冰封期河流中污染物损耗估算模型  

MODELS FOR ESTIMATING POLLUTANT REDUCTION IN RIVERS DURING FREEZING PERIOD

作　　者：郑秋红[1] 伍永秋[1] 张永光[1] 

机构地区：[1]北京师范大学资源学院沙漠与沙区资源研究所北京师范大学环境演变与自然灾害教育部重点实验室,北京100875

出　　处：《北京师范大学学报（自然科学版）》2006年第6期615-617,共3页Journal of Beijing Normal University(Natural Science)

基　　金：教育部博士点基金资助项目(20030027015)

摘　　要：在讨论常规的沉淀、生物降解模型在冰封期应用的基础上,进一步给出了冰冻作用损耗模型.实例分析结果表明,在冰封期,河流中化学需氧量(COD)的损耗方式以沉淀和冰冻作用为主,而生物降解作用则相对较弱.Research on the reduction of pollutants in rivers during freezing period is just at the beginning stage in China. Frozen in the ice is a special way of pollutant reduction. Models of deposition and biodegradation are summarized and applied to the freezing period rivers. Furthermore, the model for estimating pollutant frozen in ice is presented. Example analysis shows that deposition and frozen in ice are the main manners for organic pollutant reduction during freezing period. The action of biodegradation is minor.

关 键 词：冰封期 污染物损耗 沉淀 生物降解 冰层冻结 

分 类 号：X832[环境科学与工程—环境工程]