响应曲面法对纳滤膜分离废水中山梨醇的研究  

Study on the separation of sorbitol from wastewater by nanofiltration membrane suing response surface method

作　　者：宗刚[1] 魏腾炜 张婷 ZONG Gang;WEI Teng-wei;ZHANG Ting(School of Environmental and Chemical Engineering,Xi'an Polytechnic University,Xi'an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《化学工程师》2022年第1期67-71,83,共6页Chemical Engineer

基　　金：陕西省重点研发计划项目(2019GY-163)。

摘　　要：为同时研究多个试验变量对NT102纳滤膜分离血液制品废水中山梨醇的影响,并得到最优试验条件,利用响应曲面法对NT102纳滤膜分离废水中山梨醇的试验进行设计,以温度、压力和回收率作为影响因素,将截留率作为响应指标,采用Box-Behnken组合设计法建立数学模型,研究温度、压力和回收率对山梨醇截留率的影响。模型优化所得的最佳条件为:压力1.58MPa、温度24.15℃、回收率89.53%。在此条件下,NT102对山梨醇的截留率的预测值可达92.89%。经过实验验证,实际值与预测值之间的误差不超过0.24%,试验证明,响应曲面法在纳滤膜分离山梨醇最优试验条件中具有良好的适用性和可靠性。In order to simultaneously study the effect of multiple test variables on NT102 nanofiltration membrane separation of sorbitol in blood product wastewater and obtain the optimal test conditions,the response surface method was used to design the test of NT102 nanofiltration membrane separation of sorbitol in wastewater.Taking temperature,pressure and recovery rate as the influencing factors,and the retention rateas the response index.The Box-Behnken combination design method was used to establish a mathematical model to study the influence of tem-perature,pressure and recovery rate on the retention rate of sorbitol.The optimal conditions obtained by model optimization are:pressure 1.58 MPa,temperature 24.15℃,and recovery rate 89.53%.Under these conditions,the prediction value of NT102’s retention rate of sorbitol can reach 92.89%.The experimental verification showed that the error between the actual value and the predicted value does not exceed 0.24%.The experiment proveed that the response surface method has good applicability and reliability in the optimal test conditions for the separation of sorbitol by nanofiltration membranes.

关 键 词：响应曲面法 纳滤 山梨醇 血液制品废水 

分 类 号：X703.1[环境科学与工程—环境工程]