[Effect of phosphorus on arsenic adorption by three different soils].
The effect of phosphorus on arsenic adsorption by yellow soil, red soil and brown soil was studied using batch experiment. The results indicated that the arsenic without P amendment adsorption capacity of three tested soils was yellow soil > red soil > brown soil. The maximal adsorption capacity of yellow soil and red soil was decreased with 60 mg.kg-1 phosphorus added, and that of brown soil was increased with 20 mg.kg-1 phosphorus added. The arsenic adsorption capacity of three soils was greater when P: As = 1:2 than that when P: As = 1:1 and P: As = 2:1, and the differences between P: As = 1:1 and P: As = 2:1 treatments were not significant. Observations could be better fitted by Langmuir equations.
Environmental Remediation Laboratory, Instiute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. leim@igsnrr.ac.cn
Mei
M
Lei
Tongbin
T
Chen
Zhilian
Z
Fan
Liangyu
L
Mo
Zechun
Z
Huang
D000327:Adsorption; D001151:Arsenic / Q000737:chemistry*; D010758:Phosphorus / Q000494:pharmacology*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000302:isolation & purification*
D012987:Soil; D012989:Soil Pollutants; D010758:Phosphorus; D001151:Arsenic