分散吸附凝聚共沉法治理印染废水

Treatment of Dyeing Wastewater by Dispersing Adsorption-Condensation Method

褐煤在碱性条件下分散于印染废水中,能快速吸附和离子交换。因为对各种类型染料、洗涤剂以及某些重金属离子均具有很强的吸附能力。各类印染废经褐煤一次处理后脱色率达到80％～100％,COD去除率为60％～90％。

Lignite can be dissolved in dyeing wastewater under basic condition,and it adsorbs dyes and exchanges ions quickly in the wastewater. Lignite can adsorb strongly all kinds of dyes, detergents and some heavy metallic ions in solution. After treatment, the decolorization rate reached 80%-100% and COD removal rate was from 60% to 90%.