首页|响应面法优化冷冻浓缩处理高盐染料化工废水研究

响应面法优化冷冻浓缩处理高盐染料化工废水研究

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采用渐进冷冻浓缩法处理染料化工废水,在单因素试验的基础上,依据响应面分析法(RSM)的中心组合设计(BBD)原理,探究了冷却剂温度、搅拌速率和冷冻时间对盐和COD去除率的交互作用,并建立了多元线性回归预测模型.结果表明:在模型分析最佳试验条件(冷却剂温度为-7.7℃,搅拌速率为 320 r/min,冷冻时间为55 min)下,盐和COD去除率的预测值分别为 72.24%和 72.18%.在上述最佳条件下试验测得的盐和COD去除率分别为 70.40%和69.90%,与模型预测值的相对偏差均在 5%以内,验证了回归模型的准确性和实用性.
High salt dye chemical wastewater treatment using freeze concentration technology modified by response surface method
Progressive freezing and concentration method was used to treat dye chemical wastewater,based on single factor experiment,and according to the principle of Box-Behnken Design(BBD)of response surface methodology(RSM),the interactions of coolant temperature,stirring rate and freezing time on salt and COD re-moval were investigated and a multiple linear regression prediction model was developed.The optimal experi-mental condition was determined through the model analysis,which was as follows:the coolant temperature was-7.7℃,the stirring speed was 320 r/min,and the freezing time was 55 min.Under the above condition,the pre-dicted values of salt and COD removal were 72.24%and 72.18%respectively,while the actual removal rates got-ten from the experiment were 70.40%and 69.90%respectively,and the relative deviations from the predicted values of the model were within 5%,which verified the accuracy and practicability of the regression model.

progressive freezing and concentrationdye chemical wastewaterremoval rateresponse surface methodologycoolant temperaturestirring ratefreezing time

张钰、吕新新、李志豪、刘会来、陈星

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合肥工业大学 资源与环境工程学院,合肥 230009

合肥工业大学工业与装备技术研究院,合肥 230009

渐进冷冻浓缩 染料化工废水 去除率 响应面法 冷却剂温度 搅拌速率 冷冻时间

国家重点研发计划安徽省科技重大专项

2019YFC0408500202003a07020004

2024

工业用水与废水
东化工程科技股份有限公司

工业用水与废水

CSTPCD
影响因子：0.649
ISSN：1009-2455
年,卷(期)：2024.55(3)
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