响应面法优化藻菌污水处理系统曝气条件研究  

Study on optimization of aeration conditions in algal-bacterial wastewater treatment system using response surface method

作　　者：母锐敏[1] 于格江 祁峰[1] 马桂霞[1] 贾延天 MU Ruimin;YU Gejiang;QI Feng;MA Guixia;JIA Yantian(School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101

出　　处：《山东建筑大学学报》2023年第6期47-53,共7页Journal of Shandong Jianzhu University

基　　金：山东省自然科学基金项目(ZR2019MEE104,ZR2020ME229);山东省高等学校“青创科技计划”项目(2019KJD003);山东省住房与城乡建设厅科研项目(2020-K4-9)。

摘　　要：通过响应面法优化藻菌共生系统污水深度处理时的工艺参数,可以进一步提升藻菌共生系统污水处理的能力。文章利用响应面法优化藻菌共生系统中的曝气量和CO_(2)体积分数,分析响应面法对营养物质去除率的影响,以获得最佳的去除率。结果表明:总氮(Total Nitrogen,TN)、氨氮(NH_(3)-N)的去除率受到曝气量的影响较为显著,而总磷(Total Phosphorus,TP)、化学需氧量(Chemical Oxygen Demand,COD)的去除率更容易受到CO_(2)体积分数的影响;通过响应面法预测的最优曝气条件为曝气量0.639 L/min、CO_(2)体积分数3.849%,在此条件下,TN、TP、NH_(3)-N、COD在2 d内去除率最大,分别达到70.040%、72.925%、100%和83.612%。The wastewater treatment capacity of algal-bacterial symbiotic systems can be further improved by optimizing the process parameters during advanced wastewater treatment using the response surface method.This study employed the response surface method(RSM)to optimize the aeration volume and CO_(2)volume fraction in algal-bacterial symbiotic system,analyzing its impact on the removal rates of nutrients to achieve optimal removal efficiency.The results indicate that the removal rates of Total Nitrogen(TN)and Ammonium Nitrogen(NH_(3)-N)are significantly influenced by the aeration volume,whereas the removal rates of Total Phosphorus(TP)and Chemical Oxygen Demand(COD)are more susceptible to changes in CO_(2)volume fraction.The optimal aeration conditions predicted by the response surface method were an aeration volume of 0.639 L/min and a CO_(2)volume fraction of 3.849%.Under these conditions,the removal rates of TN,TP,NH_(3)-N and COD reached their were maximum values within 2 days,achieving 70.040%,72.925%,100%and 83.612%respectively.

关 键 词：藻菌共生系统 污水处理 曝气量 CO_(2)体积分数 响应面法 

分 类 号：X522[环境科学与工程—环境工程]