黄河下游地区多水源供水系统中铝形态分布

Aluminum Species Distribution in Water Supply System with Multiple Source in Lower Reaches of Yellow River

对黄河下游地区某多水源供水城市的水源水、出厂水和管网水中铝含量及其形态分布进行了调查。结果表明,该市引黄水库水、山区水库水和地下水这3种水源水中,地下水的总铝含量最低,引黄水库水的最高,其出厂水和管网水中总铝平均含量为0.09 mg/L。溶胶铝为该市饮用水中铝的主要形态,无机单核铝的平均检测值为0.040 mg/L,铝含量及形态分布与水质条件密切相关。

The aluminum concentration and species distribution in the source water, finished water and tap water of a water supply city with multiple source loeated in the lower reaches of the Yellow River were investigated. The results showed that among the three kinds of water sources, which included the water diverted from the Yellow River, mountain reservoir water and groundwater, the aluminum concen- tration in groundwater was the lowest, and the aluminum concentration in the water diverted from the Yellow River was the highest. The mean aluminum concentration in finished water and tap water was 0.09 mg/L. Sol aluminum was the major species of aluminum in drinking water. The mean concentration of inorganic mono-aluminum was 0.040 mg/L. The aluminum concentration and species distribution were closely related with the water quality.