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首页> 外文会议>Proceedings of the Second international symposium on ozone technology >DIRECT PHYSICOCHEMICAL TREATMENT WITH OZONE
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DIRECT PHYSICOCHEMICAL TREATMENT WITH OZONE

机译：臭氧直接物理化学处理

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A pilot study of direct physicochemical treatment of waste-waters using ozone is described. The pilot plant consisted of three principal elements, a chemical clarification unit, an ozone contact section, and a dual media filter. The chemical clarification unit removed up to 95% of the suspended solids in the raw sewage feed. The ozone contact section consisted of four spray contactors. These were generally sufficient to reduce the soluble BOD,- by 40%. The filter served to polish the effluent by removing the last traces of suspended solids.rnThe amount of ozone needed to reduce the BOD_5 and TOD in the chemical clarification unit effluent to acceptable levels was found to depend principally on the initial TOD and to be a weaker function of other variables. Treatment with 8 ozone contact stages resulted in an effluent with a BOD_5 of 16 mg/1.rnThe cost of the ozone process was 17% higher than direct physico-chemical treatment with activated carbon. However credit was not allowed for the disinfection and aeration which occured during ozonation.
机译：描述了使用臭氧直接物理化学处理废水的初步研究。中试工厂由三个主要要素组成，一个化学净化装置，一个臭氧接触区和一个双介质过滤器。化学澄清装置去除了原始污水进料中高达95％的悬浮固体。臭氧接触部分由四个喷雾接触器组成。这些通常足以将可溶性BOD降低40％。该过滤器通过去除最后的悬浮固体来对废水进行抛光。rn发现将化学澄清装置废水中的BOD_5和TOD降低至可接受水平所需的臭氧量主要取决于初始TOD，并且较弱。其他变量的功能。经过8个臭氧接触阶段的处理后，出水BOD_5为16 mg / 1.rn。与采用活性炭进行直接物理化学处理相比，臭氧处理的成本高出17％。但是，臭氧化过程中发生的消毒和充气是不允许的。

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