[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.
Lei
Mei
M
Environmental Remediation Laboratory, Instiute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. leim@igsnrr.ac.cn
Chen
Tongbin
T
Fan
Zhilian
Z
Mo
Liangyu
L
Huang
Zechun
Z
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