摘要
膨胀珍珠岩是以珍珠岩为原料煅烧膨胀制成的 ,具有容重小、空隙率大等特点。根据膨胀珍珠岩颗粒和水力学特性 ,可用作水处理过滤池滤料。试验表明 ,将其用作上升流直接过滤池的滤料 ,具有滤速大、截污能力强、反冲洗耗水小、运行周期长的特点 ,过滤效果较好 ,是替代现有滤料的良好材料 ,应用前景广阔。
Swelled perlite is produced from calcined perlite. It has characteristics of little volumetric weight and large porosity. Swelled perlite can use as materials of wastewater disposal with its characteristic of granule and waterpower. Experimental result indicted that it has large filtrating velocity, high ability of removing matter suspending, little consuming water to wash in reverse and long life period as filtrating materials in rising flow at direct filtrating pond and make great progress. Swelled perlite is good materials to substitute for tradition filtrating materials and has large application prospect in water disposal.
出处
《矿产保护与利用》
2001年第4期11-13,共3页
Conservation and Utilization of Mineral Resources
基金
国家自然科学基金支持项目 (编号 :4 0 0 72 0 17)
关键词
膨胀珍珠岩
滤料
水处理
上升流滤池
过滤
试验
swelled perlite
filtrating materials
filtration
treating with waste water
rising flow
