不同来源污泥碟片陶瓷膜错流过滤效果研究  

Cross Flow Filtration Performance of Disk Ceramic Membrane from Different Sludge

作　　者：左壮 张琛玥 喻武 闵加栋 王元月 ZUO Zhuang;ZHANG Chenyue;YU Wu;MIN Jiadong;WANG Yuanyue(CECEP Engineering Technology Research Institute Co.Ltd.,Beijing 100082;CECEP(Xi’an)Ecological Environmental Protection Co.Ltd.,Xi’an Shaanxi 710000;CECEP Environmental Protection Co.Ltd.,Beijing 100082)

机构地区：[1]中节能工程技术研究院有限公司,北京100082 [2]中节能(西安)生态环保有限公司,陕西西安710000 [3]中节能环境保护股份有限公司,北京100082

出　　处：《环境卫生工程》2025年第1期32-39,共8页Environmental Sanitation Engineering

摘　　要：为研究不同来源污泥碟片陶瓷膜错流过滤效果,采用陶瓷碟片平均孔径为2μm的动态过滤设备,对热水解泥、消化污泥和AO污泥开展实验,考察不同性质污泥对过滤渗透通量、过滤浓液和清液的影响。结果表明:在常温进料、膜旋转速度900 r/min、跨膜压差0.1 MPa的操作条件下,碟片陶瓷膜的渗透通量在20 min内迅速衰减,然后随时间的增加整体呈波动下降趋势,热水解泥、消化污泥和AO污泥过滤90 min后通量分别稳定在22.93、13.97、14.20 L/(m^(2)·h)。碟片陶瓷膜对3种来源污泥的颗粒物和溶解性有机物均有明显的截留作用。消化污泥经过膜过滤,浓液含固率可达到11.85%。碟片陶瓷膜错流过滤系统能够同时实现污泥的高效浓缩和过滤,为污泥的固液分离处理提供了一种新的途径。In order to study the cross flow filtration performance of disk ceramic membrane from different sludge,a dynamic filtration device with an average ceramic disc aperture of 2µm was adopted to conduct experiments on thermal hydrolyzed sludge,digested sludge,and AO sludge.The impact of sludge with different properties on filtration permeation flux,the filtered concentrated liquid and clear liquid were investigated.The results indicated that under the operating conditions of normal temperature feeding,a membrane rotation speed of 900 r/min,and a transmembrane pressure difference of 0.1 MPa,the permeation flux of the disc ceramic membrane decayed rapidly within 20 minutes,and then with the increase of time,the overall trend fluctuated and declined.After 90 minutes,the filtration fluxes of thermal hydrolyzed sludge,digested sludge,and AO sludge stabilized at 22.93,13.97,and 14.20 L/(m^(2)·h),respectively.The disc ceramic membrane has a significant interception effect on particulate matter and dissolved organic matter of sludge from the three sources.After the digested sludge was filtered through the membrane,the solid content of the concentrated liquid could reach to 11.85%.The disc ceramic membrane cross-flow filtration system could achieve high-efficiency concentration and filtration of sludge simultaneously,providing a new approach for the solid-liquid separation treatment of sludge.

关 键 词：市政污泥 热水解 厌氧消化 碟片陶瓷膜 固液分离 

分 类 号：X703[环境科学与工程—环境工程]