Study on the Preparation and Properties of Micro-Electrolysis Composite Replacement Filter Material
In this paper,the preparation technology and properties of micro-electrolysis composite refilling filter material are deeply investigated.By chemical reduction method,the micro-electrolytic composite replacement fil-ter material was successfully prepared,and its adsorption efficiency was evaluated with Cr(Ⅵ)as the target pol-lutant.The experimental data show that the filter material has excellent adsorption capacity for Cr(Ⅵ).The fitting results of Freundlich model revealed the heterogeneous multimolecular layer adsorption mechanism of Cr(Ⅵ)on the surface of the composite refilled filter.In order to verify the practicability of replacement filter material,this study applied micro-electrolysis composite refilling filter material to rainwater treatment,and evaluated the re-moval effect of conventional pollution indicators.The results showed that compared with the traditional biological retention zone with local soil as filler,the filter material achieved a 21%,16.9%and 8.3%improvement in the removal efficiency of total phosphorus(TP),ammonia nitrogen(NH3-N)and chemical oxygen demand(COD),re-spectively.This study not only provides an innovative and improved filler scheme for the construction of sponge city,but also actively promotes the realization of sustainable utilization of urban water resources and environmen-tal protection goals.
biological retention facilitiespollutant removalrainwater purificationfilter material replacement
万方数据
维普
