摘要
本研究对四种不同的聚4-甲基-1-戊烯(PMP)中空纤维膜进行气通量、泡点、拉伸强度等性能表征,其中M1、M2属于致密膜,M3、M4属于微孔膜,对四种膜进行了挂膜实验。选用了氧气通量最大、生物膜生长较快的M4中空纤维膜组件,分别研究了填充密度、曝气压力和水力停留时间对MABR处理性能的影响。研究结果表明,填充密度为100 m^(2)/m^(3)、曝气压力为40 kPa、HRT为10 h时,系统达到最佳处理效果,处理量分别为11 g COD/(m^(2)·d)和0.72 g NH_(4)^(+)-N/(m^(2)·d)。
This study characterized the performance of four different poly(4-methyl-1-pentene)(PMP)hollow fiber membranes,including gas flux,bubble point and tensile strength,and conducted biofilm colonization experiments.The M4 hollow fiber membrane module,which demonstrated the maximum oxygen flux and favorable biofilm growth was selected.Subsequent experiments investigated the effects of various process parameters on the treatment performance of this module.Subsequently,the influences of packing density,aeration pressure and HRT on the MABR treatment performance were systematically examined.The results indicated that under optimal conditions-a packing density of 100 m^(2)/m^(3),an aeration pressure of 40 kPa,and an HRT of 10 h-the system achieved peak treatment efficiency,with handling capacity of 11 g COD/(m^(2)·d)and 0.72 g NH_(4)^(+) N/(m^(2)·d).
作者
李文俊
周玥
胡鸿俊
汪朝晖
汪效祖
崔朝亮
LI Wenjun;ZHOU Yue;HU Hongjun;WANG Zhaohui;WANG Xiaozu;CUI Chaoliang(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing 211816,China;National Engineering Research Center for Special Separation Membrane,Nanjing Tech University,Nanjing 211816,China)
出处
《膜科学与技术》
北大核心
2025年第6期138-147,共10页
Membrane Science and Technology
基金
国家自然科学基金(22078146)。
