摘要
主要研究了氨氮在土壤中吸附的影响因素,考察吸附土壤粒度、pH值、温度因素对氨氮吸附等温线的影响.研究发现,土壤粒度越小,pH值越大、温度越低,土壤对氨氮的吸附能力越强,而土壤和溶液的最佳配比还有待于进一步考察.此外,氨氮的吸附并不只是单纯的物理吸附,同时也是一个与热交换相关的化学过程,并且随氨氮浓度的增加,表现出弱放热特性.
The influence factors of ammonia adsorption in soil are mainly studied in this paper. The influence of soil granularity, pH value and temperature on the adsorption isotherm is also discussed. It is found that the ability of adsorption increases when pH value increases and temperature decreases. The fitting match between soil and solution need to be investigated further. The adsorption is not only a physical adsorption process but also a chemical process related to heat-exchange.
出处
《吉林化工学院学报》
CAS
2007年第4期31-33,共3页
Journal of Jilin Institute of Chemical Technology
关键词
氨氮
吸附等温线
土壤粒度
PH值
温度
ammonia
adsorption isotherm
soil granularity
pH value
temperature of soil
