期刊论文

Optimization of thermal activation Na_2S_2O_8 treated Populus dyeing wastewater based response surface methodology

中文

中南林业科技大学学报

1673-923X

2017

37

11

161-166

10.14067/j.cnki.1673-923x.2017.11.026

国家林业公益性行业科研专项（201304509） 湖南省教育厅优秀青年项目（168281） 中南林业科技大学引进***人才科研启动基金项目（2015YJ023）

本校为第一机构

基于响应面分析法优化热活化Na_2S_2O_8氧化处理木材活性染料染色废水处理工艺。根据响应面分析法中的Box-Behnken中心组合设计原则选取实验因素与水平,从中选取对废水处理结果有影响的Na_2S_2O_8加入量、初始pH值、反应温度、反应时间4个因素进行优化,并利用Design Expert 8.0.6分析软件对实验数据进行分析,拟合得到二次多项式回归方程的预测模型。结果表明:50 g/L Na_2S_2O_8加入量、87 ℃反应温度、3.3 h反应时间、 pH值保持初始不变为木材活性染料染色废水最优处理工艺。在此参数下,废水COD去除率为96.16%,与预测值95.49%接近,说明根据预测模型和响应面分析法得到的优化工艺准确可靠。

The optimization of the treatment process was focused according to the response surface analysis of Box-Behnken central composite Design principle to select test factors and levels, which performed to the wastewater from wood dyeing of reactive dyes treated the sodium persulfate oxidationof thermal activation. Four influential factors of wastewater treatment were selected to optimize, such as addition amount of sodium persulfate, reaction temperature, reaction time, initial pH value. The response surface methodology was applied by using the Des...