Composite soil passivator for reducing contents of cadmium and lead as well as preparation method and application method of composite soil passivator
作者： Fu Zujiao , Shan Shiping , Guo Zhaohui , Cheng Wei , Wu Shandong
DOI:
关键词: Chaff 、 Sepiolite 、 Pulp and paper industry 、 Soil fertility 、 Paddy field 、 Chicken manure 、 Cadmium 、 Husk 、 Chemistry 、 Fertilizer
摘要: The invention discloses a composite soil passivator for reducing contents of cadmium and lead as well preparation method an application the passivator. comprises following components in percentage by weight: 5-15wt% composted chicken manure, mixture rice chaff husk, turf, 10-20wt% silicon-calcium-magnesium-potassium fertilizer, talcum powder, 25-35wt% sepiolite, stacking fermented sugarcane filter mud 1.5-2.5wt% microbial fermentation liquor. can be widely applied to mild moderate cadmium/lead polluted fields ensure that active heavy metal are respectively reduced 51.5-51.6% 52.6-58.8%, polished 48.8-51.6% 52.7-56.0% pH value is improved 0.97-1.04; has functions restoring acidized soil, improving fertility physicochemical property huge popularization values.
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