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氧化物涂层砂,比表面积增加,吸附容量增大,使石英砂表面电荷的带电性质改变,有利于水中天然有机物的去除。对3种不同氧化物涂层砂和未涂层砂对天然有机物的去除性能进行了比较实验,证明涂铝砂和B型涂铁砂对水中天然有机物的去除效果优于A型涂铁砂;而3种涂层砂均优于未涂层砂。
Oxide coated sand, the specific surface area increases, the adsorption capacity increases, so that the charging properties of quartz sand surface charge changes, is conducive to the removal of natural organic matter in water. Three kinds of oxide-coated and uncoated sand on the removal of natural organic matter performance comparison experiments show that coated aluminum and B-coated iron sand on the removal of natural organic matter in water better than the A-coated iron sand; and 3 Species of coated sand are better than uncoated sand.