Such complexes might have affinity for detrimental inorganic oxyanions such as arsenate , a common toxic contaminant in soils . the purpose of this study is to investigate the influence of environmental conditions on the adsorption of arsenate on fe - oxyhydroxide - monlmorillonte complexes , which is significant to agrology , geochemistry and environmental science 本研究即以南方的土壤环境条件为参考，模拟在ph = 5时的酸性氧化条件下，土壤中低聚合羟基铁?蒙脱石复合体的形成、物化性特征及其吸附砷酸根阴离子的行为。
