摘要
文章采用羧甲基壳聚糖对茜素黄GG水溶液进行处理,研究了羧甲基壳聚糖浓度、溶液的pH值、温度、时间变化对脱色率及化学需氧量变化的影响。研究表明:在pH=3,羧甲基壳聚糖添加量为0.0858g/L,25°C下反应5h后有很好的脱色效果,最佳脱色率达85.96%,COD去除率为73.91%。
Carboxymethylchitin is adopted to treat Alizarin Yellow GG. A study is devoted to the effects of pH, amount of addition carboxymethylchitin, temperature and time on the decoloration of the solution. Result shows a good flocculent decolorizing effect of carboxymethylchitin on Alizarin Yellow GG. When the amount of addition carboxymethylchitin is 0.0858g/L , the adsorption time is 5h at 25℃, pH is 3, decoloration is very good, with rate of decolorization up to 85.96% and removal rate of COD 73.91%.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第4期67-69,共3页
Environmental Science & Technology
关键词
羧甲基壳聚糖
茜素黄GG
絮凝作用
脱色率
COD
carboxymethylchitin
Alizarin Yellow GG
flocculent decolorizing effect
rate of decolorization
COD