作 者：
陈程程;张强;裴振洪;刘同军;祁庆生;王加宁
单 位：
日照鲁信金禾生化有限公司;山东轻工业学院食品与生物工程学院;山东大学生命科学学院;山东省科学院生物研究所
关键词：
柠檬酸废水;COD去除率;响应面分析;工艺优化
摘 要：
[目的]得到更高的COD去除率以指导柠檬酸工业废水的处理。[方法]研究了柠檬酸废水厌氧处理过程中主要可控因素酸化时间、厌氧水力停留时间以及厌氧进水COD浓度对COD去除率的影响,并用响应面法进行了COD去除率优化。[结果]酸化时间与其他2个因素基本没有交互作用,厌氧停留时间和厌氧进水COD浓度对COD去除率有显著影响,而且有交互作用。优化的最佳工艺条件为酸化时间1.53 h,厌氧水力停留时间3.52 h,厌氧进水COD浓度2 698 mg/L,预测最大COD去除率为93.31%,验证试验实际测得去除率为93.23%。[结论]用响应面法优化柠檬酸废水厌氧处理过程,可得到较好的优化结果。
译 名：
Process Optimization on Anaerobic Treatment of Citric Acid Wastewater
作 者：
CHEN Cheng-cheng et al(College of Food and Bioengineering,Shandong Institute of Light Industry,Jinan,Shandong 250353)
关键词：
Citric Acid Wastewater;COD removal rate;Response surface methodology;Process optimization
摘 要：
[Objective] The aim was to obtain higher COD removal rate so as to guide the process of citric acid industrial wastewater.[Method] The effects of controllable factors,acidification time,hydraulic retention time,and influent COD concentration,in-anaerobic treatment process of citric acid wastewater on COD removal rate were studied and the COD removal rate was optimized by response surface method.[Result] There was no interaction between acidification time and the other two factors.It was showed that hydraulic retention time and influent COD concentration had significant effect on COD removal rate and there was interaction between the two factors.The optimum COD removing process conditions was as follows: acidification time 1.53 h,hydraulic retention time 3.52 h and influent COD concentration 2 698 mg/L.Under the optimized conditions,the COD removal rate was 93.31% and it was much closed to the experimental result,93.29%.[Conclusion] Using response surface method to optimize the anaerobic treatment of citric acid wastewater can result in optimized achievement.
