【摘要】 为提高传统化学法和生物法处理色度高、颜色变化频繁、化学需氧量(COD)值大和pH值高的印染废水的效果,试验研究了用直流电絮凝法处理实际印染废水并分析了COD、pH值和COD的变化以及极板和电能的消耗。试验结果表明,电絮凝法处理效果好,对pH值要求低,工艺简单,操作方便,成本低。更多还原

【Abstract】 Printing and dyeing industry is one of largest water consumption industries. High colourity, large COD and pH are the main characteristics of dyeing wastewater, which color varies frequently during the production. Conventional biochemical treatment has reached its technical limit and is hard to improve its treatment effectiveness. Treatment of real dyeing wastewater by electrocoagulation with iron or aluminium electrode was studied in a dying factory. The improvement of COD and colority, change of pH, and power and electrode consumption were analyzed in the paper. The result shows that electrocoagulation can realize perfect treatment effect in short time with wide a pH range, simple technology, convenient operation and low cost.更多还原