中国环境科学
中國環境科學
중국배경과학
CHINA ENVIRONMENTAL SCIENCE
2014年
5期
1187-1193
,共7页
陈方义%杨昱%廉新颖%姜永海%席北斗%李定龙%张进保%马志飞
陳方義%楊昱%廉新穎%薑永海%席北鬥%李定龍%張進保%馬誌飛
진방의%양욱%렴신영%강영해%석북두%리정룡%장진보%마지비
组分配比%过硫酸盐%缓释材料%释放性能
組分配比%過硫痠鹽%緩釋材料%釋放性能
조분배비%과류산염%완석재료%석방성능
component ratio%persulfate%slow-release material%release properties
运用不同配比制备多种过硫酸盐缓释材料,采用欧盟标准化组织制定的NEN 7375标准浸出方法测试其释放性能,利用相关性分析和克里格插值法探究材料组分配比对过硫酸盐缓释材料释放性能的影响规律。结果表明:作为制备过硫酸盐缓释材料基质材料的水、砂和水泥均有一定的适配范围,即水含量在5%~35%之间,砂含量在0~85%之间,水泥含量在5%~85%之间;缓释材料的扩散系数与砂含量呈现显著的正相关,与水泥含量呈现显著的负相关,而与水含量无显著相关性;基质材料对过硫酸盐缓释材料扩散系数的综合作用较为复杂,总体而言,当水泥含量高于砂含量时,水含量是影响缓释材料扩散系数的主要因素,当砂含量大于水泥含量时,砂含量则是影响缓释材料扩散系数的主要因素。此外,增加缓释材料中过硫酸盐的含量可以提高过硫酸盐的释放速率并延长缓释材料的使用寿命。
運用不同配比製備多種過硫痠鹽緩釋材料,採用歐盟標準化組織製定的NEN 7375標準浸齣方法測試其釋放性能,利用相關性分析和剋裏格插值法探究材料組分配比對過硫痠鹽緩釋材料釋放性能的影響規律。結果錶明:作為製備過硫痠鹽緩釋材料基質材料的水、砂和水泥均有一定的適配範圍,即水含量在5%~35%之間,砂含量在0~85%之間,水泥含量在5%~85%之間;緩釋材料的擴散繫數與砂含量呈現顯著的正相關,與水泥含量呈現顯著的負相關,而與水含量無顯著相關性;基質材料對過硫痠鹽緩釋材料擴散繫數的綜閤作用較為複雜,總體而言,噹水泥含量高于砂含量時,水含量是影響緩釋材料擴散繫數的主要因素,噹砂含量大于水泥含量時,砂含量則是影響緩釋材料擴散繫數的主要因素。此外,增加緩釋材料中過硫痠鹽的含量可以提高過硫痠鹽的釋放速率併延長緩釋材料的使用壽命。
운용불동배비제비다충과류산염완석재료,채용구맹표준화조직제정적NEN 7375표준침출방법측시기석방성능,이용상관성분석화극리격삽치법탐구재료조분배비대과류산염완석재료석방성능적영향규률。결과표명:작위제비과류산염완석재료기질재료적수、사화수니균유일정적괄배범위,즉수함량재5%~35%지간,사함량재0~85%지간,수니함량재5%~85%지간;완석재료적확산계수여사함량정현현저적정상관,여수니함량정현현저적부상관,이여수함량무현저상관성;기질재료대과류산염완석재료확산계수적종합작용교위복잡,총체이언,당수니함량고우사함량시,수함량시영향완석재료확산계수적주요인소,당사함량대우수니함량시,사함량칙시영향완석재료확산계수적주요인소。차외,증가완석재료중과류산염적함량가이제고과류산염적석방속솔병연장완석재료적사용수명。
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.