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Chinese Journal of Applied Ecology ›› 2003, Vol. ›› Issue (11): 1989-1992.

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Effect of phosphorus on arsenic adorption by three different soils

LEI Mei, CHEN Tongbin, FAN Zhilian, MO Liangyu, HUANG Zechun   

  1. Environmental Remediation Laboratory, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2002-07-05 Revised:2003-02-08

Abstract: 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 Pamendment 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穔g-1 phosphorus added,and that of brown soil was increased with 20 mg穔g-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.

Key words: Phosphorus, Arsenic, Adsorption, Yellow soil, Red soil, Brown soil

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