电助淀粉絮凝蛋白质及在制革废水处理中的应用  

Parameter Optimization of Electro-assisted Starch Flocculation Protein and its Application in Tannery Wastewater Treatment

作　　者：谭琼 单志华[1,2] 戴睿[1] 陈慧[1,2] 龙忠珍[3] TAN Qiong;SHAN Zhihua;DAI Rui;CHEN Hui;LONG Zhongzhen(College of Biomass Science and Engineering,Sichuan University,Chengdu 610065,China;National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China;Jiangsu Hoffen Research Institute of Resource Circulation,Xuzhou 221200,China.)

机构地区：[1]四川大学轻工科学与工程学院,四川成都610065 [2]四川大学制革清洁技术国家工程实验室,四川成都610065 [3]江苏鸿丰资源循环利用研究院,江苏徐州221200

出　　处：《皮革科学与工程》2022年第5期29-34,共6页Leather Science and Engineering

基　　金：四川循环经济研究中心课题资助(课题编号XHJJ-2009)。

摘　　要：采用二次通用旋转组合设计法,以明胶模拟蛋白质,系统分析了明胶质量分数、淀粉质量分数、氯化钠质量分数和电解时间对蛋白质去除率的影响。得出最优处理参数为明胶质量分数2.5%、淀粉质量分数3%、氯化钠质量分数0.3%、电解时间20 min,此时理论上蛋白质的去除率为66.6%,在该参数条件下,进行制革废水中蛋白质絮凝测试,得到实际蛋白质去除率可达56.4%,能耗为3.67×10^(-4)kW·h。因此电助淀粉絮凝法可以为制革废水中蛋白质的去除提供一种环保高效的新方法。Using the quadratic general rotary combined design method, the effects of gelatin mass fraction, starch mass fraction, sodium chloride mass fraction and electrolysis time on the protein removal rate were systematically analyzed. In these experiments, the protein was simulated by using gelatin. The optimal treatment parameters were obtained as follow:gelatin mass fraction of 2.5%, starch mass fraction of 3%, sodium chloride mass fraction of 0.3%, and electrolysis time of 20 min. The optimal removal rate of protein was predicted to be 66.6% according to mathematical model. Under the conditions of these parameters, the protein flocculation test in tannery wastewater was carried out, and the actual protein removal rate was 56.4% with the energy consumption of 3.67 ×10^(-4)kW·h. Therefore, the electro-assisted starch flocculation method can provide an environmentally friendly and efficient new method for the removal of protein from tannery wastewater.

关 键 词：电助淀粉 絮凝 蛋白质 去除 

分 类 号：X794[环境科学与工程—环境工程]