MBR精准曝气控制系统开发与节能效果验证  

Development of MBR Precise Aeration Control System and Its Energy-saving Effec

作　　者：王浩 刘国梁 常江 张志强[1,2] 李彤 韩建润 韩军 孙观来 邱浩然 WANG Hao;LIU Guo-liang;CHANG Jiang;ZHANG Zhi-qiang;LI Tong;HAN Jian-run;HAN Jun;SUN Guan-lai;QIU Hao-ran(Beijing Engineering Research Center for Wastewater Reuse,Beijing 100124,China;Beijing Drainage Group Co.Ltd.,Beijing 100124,China;School of Energy and Environmental Engineering,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]北京市污水资源化工程技术研究中心,北京100124 [2]北京城市排水集团有限责任公司,北京100124 [3]河北工程大学能源与环境工程学院,河北邯郸056038

出　　处：《中国给水排水》2024年第11期13-18,共6页China Water & Wastewater

摘　　要：高能耗限制了膜生物反应器(MBR)的广泛应用,通过精准调控实现MBR的节能降耗是未来的发展趋势。为此,建立了一套MBR精准曝气控制系统,采用箱线图法和3σ统计算法对原始数据集进行异常值监测,基于最小二乘法建立曝气量与透水率之间的多元非线性回归模型。结果表明,采用清洗算法能够去除25%的异常值从而保证数据质量;数学模型对数据的拟合效果良好,决定系数R2>0.99。MBR精准曝气控制系统在不同条件下对膜单元透水率的控制效果稳定,节能效果显著。相比于传统曝气控制,平板膜和中空纤维膜在精准曝气控制方式下,膜单元曝气量分别降低20.0%和21.4%,曝气能耗分别降低8.2%和19.0%。传统与精准控制方式下的膜产水水质均稳定达标,MBR精准曝气控制系统不会对膜出水水质产生影响。The high energy consumption limits the widespread application of membrane bioreactor(MBR),and it is the future development trend of MBR to realize energy conservation and consumption reduction through precise regulation.In this study,a set of MBR precise aeration control system was established.The box plot method and 3o statistical method were used to monitor outliers on the original data set,and a multivariate nonlinear regression model between aeration volume and water permeability was established based on least square method.The results showed that the cleaning algorithm could remove 25%of outliers to ensure data quality.The mathematical model fitted the data well,and the coefficient of determination R?was greater than 0.99.MBR precise aeration control system had stable control effect on membrane unit permeability under different conditions,and significant energy-saving effect.Compared with the traditional aeration control mode,the aeration of the membrane unit for flat membrane and hollow fiber membrane decreased by 20.0%and 21.4%,and energy consumption decreased by 8.2%and 19.0%,respectively.The effluent quality under the traditional and precise control was stable and up to standard,and the precise aeration control system would not affect the effluent quality.

关 键 词：膜生物反应器 精准曝气控制系统 数学模型 能耗 产水水质 

分 类 号：TU992[建筑科学—市政工程]