利用甲壳胺和海藻酸钠处理染整废水

Dyeing and finishing effluent treatment with chitosan and sodium alginate

介绍了联合使用甲壳胺和海藻酸钠处理染整废水的处理方法。在含酸性铬蓝K染料的废水中分别加入甲壳胺和海藻酸钠的水溶液后,把二种溶液混合。由于带正电的甲壳胺和带负电的海藻酸钠相互沉淀而使染料与废水分离。实验结果表明,甲壳胺和海藻酸钠的添加量、添加比例、处理温度、pH值、处理时间等因素对废水脱色均有影响。

Use of chitosan and sodium alginate in treating effluent from dyeing and finishing process was studied. Chitosan and sodium alginate solutions were separately added into two samples of effluent containing acid chrome blue K dye, followed by mixing together the two samples. Since the positively charged chitosan and negatively charged sodium alginate precipitated each, waste dye was absorbed and separated from the solution. Experimental results showed that removal of waste dye is affected by the dosage of chitosan and sodium alginate, the ratio of chitosan to sodium alginate, treatment temperature, pH and time.