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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Influences of Water Treatment Process on Iron and Copper Release in Distribution System
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Influences of Water Treatment Process on Iron and Copper Release in Distribution System

机译：水处理工艺对配水系统铁铜释放的影响

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摘要

A pilot study was conducted to assess the effect of water quality changes on iron and copper release in distribution systems. Three finished waters were prepared from groundwater source by conventional treatment, lime softening and reverse osmosis (RO). To mimic desalinated seawater, sea salts were added to RO treated water. Both lime softening and RO treatment significantly decreased the calcium concentration and alkalinity of groundwater. During a yearlong investigation, the impact of seasonal changes on iron and copper release was also evaluated. The results showed that ground-water after lime softening slightly increased iron release potential but significantly decreased copper release. Desalination water caused much higher iron release but lower copper release than conventionally treated groundwater. Blended water with conventional groundwater and desalination water resulted in intermediate iron release but much high copper release. Both iron and copper release could be accelerated by temperature increase.
机译：进行了一项初步研究，以评估水质变化对配电系统中铁和铜释放的影响。通过常规处理，石灰软化和反渗透（RO），从地下水源中制备了三种最终水。为了模拟淡化海水，将海盐添加到RO处理过的水中。石灰软化和RO处理均显着降低了地下水的钙浓度和碱度。在为期一年的调查中，还评估了季节性变化对铁和铜释放的影响。结果表明，石灰软化后的地下水稍微增加了铁的释放潜力，但大大降低了铜的释放。与常规处理的地下水相比，脱盐水引起的铁释放量高得多，而铜释放量低。将水与常规地下水和淡化水混合后，会产生中等程度的铁释放，但铜的释放量很高。温度升高可促进铁和铜的释放。

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