粒状滤料过滤技术发展与应用的探讨

粒状滤料过滤技术广泛用于废水的深度处理.过滤技术使用后,快滤池技术发展迅速.随着多种滤料的开发,深层过滤技术得到发展,直接过滤工艺应运而生.反冲洗是快滤池的一项关键技术,气水联合反冲洗对滤料过滤能力的再生效果优于单水反冲洗.滤料过滤存在跑料、料层板结等问题,在工程实践中逐步得到改进.

Discussion on Development and Application of Grainy Filtering Media Filtration

The filtration of grainy filtering media widely applies to the advanced treatment technology for wastewater.The filtration of fast-filter rapidly develops after using the technology of filtration.The technology of deep-bed filtering media filtration is apace develop while people empolder multifarious filtering media. The direct filtration technology emerges as the times require.The backwashing is the key technology of fast-filter.The effect of gas-water backwashing is superior to single-water backwashing on renewing filtration capability of filter bed.The technology of filtering media filtration comes forth some problem of losing filtering media with backwashing current,filtration bed induration,etc.Those problems are gradually improved in practice.