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Formation of Bromate in a Continuous Flow Ozonation Reactor 连续流动臭氧氧化反应器中溴酸盐的生成
发布日期: 1997-01-01
当含有溴酸盐的水经过消毒时,会产生溴酸盐(DBP)。尽管已经对溴酸盐的形成进行了许多研究,为溴酸盐形成的化学提供了基本的理解,但大多数研究都是在间歇规模的臭氧氧化条件下进行的,并且限制了对全规模、连续流动臭氧氧化反应器的直接适用性。本研究通过改变臭氧剂量和水质参数,如进水溴离子浓度、pH值、总有机碳(TOC)浓度和总无机碳(TIC)浓度,考察了在实验室规模、连续流动、完全混合的臭氧反应器中溴酸盐的形成。 研究了影响传质的条件。研究中使用了已知化学成分的模型溶液。使用两种不同的离子色谱(IC)技术,即直接进样法和IC/分光光度法分析溴酸盐浓度。
Bromate is produced as a disinfection byproduct (DBP) when bromide-containing waters are subjected to ozonation. Although many studies have been conducted on bromate formation that have provided a basic understanding of the chemistry of bromate formation, most of these have been conducted under batch-scale ozonation conditions and have limited direct applicability to full-scale, continuous-flow ozonation reactors. This study examined the formation of bromate in a bench-scale, continuous-flow, completely mixed ozone reactor by varying ozone dose and water quality parameters, such as influent bromide ion concentration, pH, total organic carbon (TOC) concentration and total inorganic carbon (TIC) concentration. Conditions that influence mass transfer were also investigated. Model solutions of known chemical composition were used in the study. Bromate concentrations were analyzed using two different ion chromatographic (IC) techniques, the direct injection and IC/spectrophotometric methods.
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发布单位或类别: 美国-美国给水工程协会
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