摘要
Abstract
The research on the modification of modified biochar has attracted much attention,especially the modification of metal ions such as iron,magnesium,calcium,lanthanum,etc.,which has been widely studied in the field of phosphorus removal,and can be applied to the water quality improvement of micro-polluted water,the water quality improvement of agricultural non-point source pollution and the water quality improvement of industrial tail water.In this study,a large-scale production process of modified biochar based with corn base as raw material was studied,the carbon yield could reach 60.4%,the phosphorus adsorption saturation value of the obtained modified biochar could reach 90 mg/g,and the phosphorus removal rate could reach 75%under the operating conditions of upward water distribution mode,hydraulic residence time of 3.75 h and pH 8.0.Modified biochar has the advantages of high recycling,low cost,good environmental compatibility and high application adaptability of raw materials,aiming to provide scientific basis and theoretical support for the production and application of biochar.关键词
生产工艺/改性生物质炭/吸附饱和值/磷/再利用Key words
production process/modified biochar/adsorption saturation value/phosphorus/recycle分类
资源环境
