Study on Preparation and Performance of Composite Nutrient Denitrifying Biofiller
Composite nutritional denitrification filler was developed by extrusion granulation method using sulfur as the electron donor,calcium carbonate powder as the inorganic carbon source,and carboxymethyl cellulose sodium as the organic binder.The prepared composite denitrification biofilm formed a relatively stable physicochemical structure,which could sustainably release the nutrients required for heterotrophic denitrification and sulfur autotrophic denitrification in water.After using this filler to drive the composite nutrient denitrification filter,the removal rate of NO3--N in water was over 90%.
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维普
