高分子铝盐絮凝剂的应用

目前，聚合氯化铝作为生活用水、工业用水和工业废水等水处理剂已得到广泛应用。为了提高其絮凝性能，研究者做了大量工作，主要是在聚合氯化铝中引入其它离子而形成复合型取型聚合铁铝。作者就高分子铝盐、无机高分子复合铝盐和无机高分子铝盐一有机高分子絮凝剂联用在处理生活用水、工业用水和工业废水等方面做了综述，并提出了聚合铝盐在今后水处理方面的发展趋势。

Application of polyaluminium salt as flocculating agent

At present, polyaluminium chloride (PAC) has been widely used as water treatment agent for water for living, industrial water service and industrial effluent. To improve its flocculation properties, much work has been done, mainly introducing some other ions into PAC to form polyblend so as to improve its abilities of neutralizing electric charge or complexing, such as polyblend of iron and aluminium salt; polyblend of silica and aluminium salt; polyblend of silica, iron and aluminium salt, polyblend of phosphate and aluminium salt; polyblend of iron and aluminium salt with silica and calcium etc. The comprehensive application of polyaluminium salt, polyblend of aluminium salt and other salt, combining use of polyaluminium salt and organic polymeric flocculant in dealing with the water for living, industrial water service and industrial effluent has been discussed in this paper, The development trend of polyaluminium salt in water treatment is also discussed.