摘要
研究了２０℃下土壤对汞的吸附等温线，证实Ｌａｎｇｍｕｉｒ方程可用于土壤对汞的吸附研究，并且不同温度、酸度对土壤吸附汞均有影响。试验结果表明：温度低于２５℃时，吸附量随温度升高而减少，但２５℃以上，吸附量不再减少；酸度降低，吸附量增加，但接近中性时（ｐＨ＝５－７），吸附量增加缓慢。
Studies of the adsorption isotherm of mercury to soils at 20℃ wereconducted, which demonstrated that Langmuir's equation was applicable in this case. Temperature and acidity had an effect on the mercury adsorption to soils. The results showed that the amount of absorbate decreased as the temperature rises when the temperature was below 25℃, but it did not decreased any longer when the temperature was above 25℃。The results showed that the amount of absorbate increased as the acidity depreciated, but itincreased slowly when the acidity was close to neutrality(pH5 7) .
出处
《农业环境保护》
CAS
CSCD
1996年第5期228-230,共3页
Agro-Environmental Protection
关键词
土壤
汞
吸附
温度
酸度
soil, mercury adsorption, temperature and acidity
