摘要
焦亚硫酸钠是果汁加工过程中添加的防腐剂和抗氧化剂,但是添加过量会给后续果汁加工废水的生化处理带来不便.实验过程中主要采用空气氧化处理和臭氧氧化处理两种不同的方法对果汁加工废水中的焦亚硫酸钠进行化学处理,并考察了催化剂对空气氧化处理效果的影响.结果表明:臭氧氧化处理耗时少、去除率高;使用催化剂催化空气氧化比单纯空气氧化处理效果好.
Adding sodium metabisulfate a kind of food additive to the fruit juice production process plays the preservatives and antioxidants roles,but excessive addition will bring more inconvenience in the juice wastewater treatment process, especially the biological treatment. Two methods of chemical treatment sodium metabisulfite are air oxidation and ozone oxida- tion of the juice wastewater, and the factors are carried on the catalyst oxidation combined with the air. The results indicate that ozone oxidation is the more effective way with less time-consuming and high removal rate, while the catalyst oxidation combined with the air is more effective than simply air oxidation.
出处
《青岛理工大学学报》
CAS
2013年第2期76-80,共5页
Journal of Qingdao University of Technology
基金
山东省自然科学基金资助项目(ZR2011EEQ026)
青岛理工大学泰山学者建设工程专项经费资助项目
关键词
果汁加工废水
焦亚硫酸钠
化学处理
臭氧氧化
催化剂
juiee wastewater
sodium metabisulfate
chemical treatment
ozone oxidation
catalyst
