沸石强化过滤的效果及其对水质的影响

采用沸石作为新型滤料进行了强化过滤试验，试验结果表明沸石不仅具有去除水中浊度作用，而且还可去除水中氨氮和部分有机物。在试验条件下，沸石对浊度的去除率在65％左右，对CODMn、氨氮的去除率分别在10％、95％以上，对水中常见的3种微污染有机物LAS、三氯甲烷、苯酚的去除率分别达到17．7％、44．45％、34％，且沸石作为滤料不会增加水中有害金属离子浓度。因此沸石强化过滤是一种有效、安全的提高水质的方法。

Removal Efficiency and Effect on Water Quality of Zeolite Enhanced Filtration

A new kind of filter media, zeolite, is used to enhance filtration for an improvement on tap water quality. The experimental results show that zeolite can remove not only turbidity but also ammonia-N and partial organic pollutants in water. In the experments, zeolite can remove about 65% of turbidity and over 10% of COD Mn , 95% of ammonia-N from water, the removal efficiencies of anianon detergent(LAS), chloroform and phenol are over 17.7%, 44.45% and 34% respectively, and metal ion contamination has not been found in filter effluence. Therefore, zeolite enhanced filtration is an efficiency and security method for an improvement on water quality.