Abstract：The slow-release persulfate materials were prepared under different component ratios. The release performance was tested according to NEN 7375flume experiment method developed by European Organization for standardization. The influence law of the component materials on the release properties of slow-release persulfate materials was studied by correlation analysis and Kriging interpolation method. Water, sand and cement were the matrix materials for forming slow-release persulfate materials. There was a certain adaption range for each component. The range percentages for water, sand and cement are 5% to 35%, 0% to 85%, and 5% to 85%, respectively. The diffusion coefficients of slow-release persulfate materials had significant positive correlation with sand content. It showed significant negative correlation with cement content and there is no significant correlation with water content. The comprehensive effect of the matrix materials on the diffusion coefficients of slow-release persulfate materials was more complicated. However, the main factor which affecting the diffusion coefficient was water content when cement content was higher than sand content, while cement content was lower than sand content, and then it became sand content. The release speed of slow-release persulfate material would be increased and the release cycle would become longer with the increasing of persulfate content.
陈方义, 杨昱, 廉新颖, 姜永海, 席北斗, 李定龙, 张进保, 马志飞. 过硫酸盐缓释材料释放性能的影响因素研究[J]. 中国环境科学, 2014, 34(5): 1187-1193.
CHEN Fang-Yi, YANG Yu, LIAN Xin-Ying, JIANG Yong-Hai, XI Bei-Dou, LI Ding-Long, ZHANG Jin-Bao, MA Zhi-Fei. Influence factors of the release properties of the slow-release persulfate material. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(5): 1187-1193.
