粒状活性炭在管道分质供水口感改善中的作用研究

口感是评价管道分质供水质量的一项关键指标,它直接影响消费者对管道分质供水的接受程度。研究了影响管道分质供水口感的主要因素及粒状活性炭对口感改善所起的作用。结果表明,净水中余氯浓度、TOC含量及VOCs含量均会对净水口感产生影响;粒状活性炭过滤可有效降低管道分质供水中净水余氯浓度、TOC与VOCS含量,明显改善净水口感,而对其他水质指标无不良影响。结合试验结果与工程实例,提出了应用粒状活性炭改善管道分质供水口感的技术参数,并建议采用粒状活性炭过滤器作为管道分质供水的终端过滤。

Taste improvement of dual tube supplying water using grain activated carbon

Taste is a key index to evaluate the quality of dual tube supplying water. It is directly related to the extent of the dual tube water accepted by consumers. In this paper, the main factors influencing the water taste and the water taste improvement with grain activated carbon(GAC) were investigated. The results shown that some factors such as residual chlorine concentration, TOC and VOCs contents have an obvious influence on test of purified water. GAC filtration can effectively reduce the residual chlorine concentration, TOC and VOCs contents and improve the taste of purified water, and that has no any influence on other water indexes. Combined the experiment results with an case investigation of a dual tube supplying water engineering, the technique parameters of GAC filtration applied to improve the water taste was proposed and it was suggested to be used as finally filtration in the dual tube supplying water engineering.