Effect of Composite Addition of Different Materials on Chromium Morphology in Soil
Taking chromium polluted yellow soil as the research object,three soil amendments for control-ling heavy metal pollution,including organic material(peat),pH regulator(zeolite)and biochar(chicken ma-nure),were selected and their effects on chromium morphology,pH value and the content of organic matter in soil were investigate by orthogonal test L9(34)and indoor pot experiments.The results showed that the addition of zeolite increased pH value,the content of organic matter,reducible chromium and oxidiza-ble chromium in soil.The addition of chicken manure increased pH value and thus increased the content of re-ducible chromium in soil.The addition of peat increased the content of organic matter and oxidizable chromium,but decreased the content of exchangeable chromium in soil.
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NSTL
万方数据
维普
