氨的湿去除及氨在酸雨中的作用  

Ammonia Wet Deposition and Its Functions in Acid Rain

作　　者：黎云[1] 孙庆瑞[1] 

机构地区：[1]北京大学技术物理系,北京100871

出　　处：《环境科学研究》1996年第6期41-44,共4页Research of Environmental Sciences

基　　金：国家"八五"科技攻关项目

摘　　要：为定量说明氨的湿去除,应用GR模式模拟了各种情况下氨的湿去除。结果表明:对氨的湿去除,影响最大的因素是成云过程中液体水含量和降雨过程中的雨强;氨在酸雨中有着重要的作用,氨能有效地增加云水和雨水的pH值,因而能加速二氧化硫在水中的溶解和臭氧对4价硫的氧化,最终加速了二氧化硫的湿去除。模式结果还表明,在典型的情况下,氨的湿去除速率为每小时52%。In order to quantitatively explain the wet removal process of NH_3, GR model was used to simulate the wet removal process of NH_3 under many situations. The results show that the most important factors of affecting the wet removal process of NH_3 are liquid water content and rain density. NHa plays an important role in acid rain, which can increase the pH value of cloud water and rain water, and speed the dissolution of SO_2 in water and the oxidation of S (IV) by O_3, thus speed the wet removal process of NH_3. The results also show that the wet removal rate of NH_3 is 52%·h^(-1) under typical situations.

关 键 词：氨 酸雨 湿去除 二氧化硫 GR模式 

分 类 号：X517.05[环境科学与工程—环境工程]