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若干年前出现的混合滤料新技术由于突破了以往认为过滤和混凝是两个互不相干单元技术的这种传统概念,充分运用混凝对最佳过滤性的巨大影响。从而仅靠采用混合滤料、向滤池进水投加助滤剂和对出水实行悬浮物监控等简单措施就曾使世界上不少水厂得益非浅。不仅出水水质和各项技术经济指标有了明显改善,同时也促进了与此有关的双层和混合滤料技术的迅速发展。近些年来出现的吸附一过滤及过滤一吸附双层滤料滤池技术,则是与此有关的水处理科学技术的发展实例。因该项技术有一系列技术经济优点与特色,现简要介绍如下: 新型双层滤料滤池技术及其特点对于有机物污染原水,当前国内外大多
The new hybrid filter technology that emerged several years ago has broken through the traditional concept that filtration and coagulation were two unrelated units in the past, and the full use of coagulation has had a tremendous impact on optimal filterability. Thus, simple measures such as the use of mixed filter materials, the addition of filter aids to the filter water inlet, and the monitoring of suspended matters in the effluent have benefited many water plants in the world. Not only has the effluent quality and technical and economic indicators been significantly improved, but it has also promoted the rapid development of double-layered and hybrid filter technology related to this. The adsorption-filtration and filtration-adsorption dual-layer filter filter technologies that have emerged in recent years are examples of developments in water treatment science and technology related to this. Because this technology has a series of technical and economic advantages and characteristics, it is briefly introduced as follows: The new double-layer filter technology and its characteristics for organic matter pollution of raw water, most of the current domestic and foreign