研究了40 kHz超声波处理器在特定声强(1 700和2 700 W/m2)下对聚偏氟乙烯(PVDF)中空纤维膜组件的破坏情况、浸泡时间对清洗效果的影响、超声协同化学浸泡对膜的清洗效果和超声抑垢过程.得出普通清洗方法清洗时间以6 h最佳,通量提高率为19.2%;利用超声辅助清洗,通量提高率为71%.在抑垢试验中,膜初始通量(纯水通量)为48.6 L/(m2·h),在无超声及无曝气条件下,使用180 min后,通量降至37.26 L/(m2·h),为初始通量的67.4%;当开启声强为270 W/m2及曝气和600 W/m2超声及曝气后,超滤180 min,膜通量为43.16和45.36 L/(m2·h),为初始通量的89.7%和94%,均好于未开超声时的效果.高的声强,抑垢效果好.
参考文献
| [1] | 赵平,赵星洁,王爱兵,张月萍.膜的化学清洗[J].河北化工,2005(01):15-16,34. |
| [2] | 孙振龙,陈绍伟.污水处理中有机膜的化学清洗技术研究[J].环境科学与技术,2003(06):3-5. |
| [3] | Kobayashi T.;Hosaka Y.;Fujii N. .Ultrasound-enhanced membrane-cleaning processes applied water treatments: influence of sonic frequency on filtration treatments[J].Ultrasonics,2003(3):185-190. |
| [4] | H.M.Kyllonen;P.Pirkonerf M.Nystrom .Membrane filtration enhanced by ultrasound:a review[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2005(1/3):319-335. |
| [5] | Latt KK;Kobayashi T .Ultrasound-membrane hybrid processes for enhancement of filtration properties[J].Ultrasonics sonochemistry,2006(4):321-328. |
| [6] | Chai Xijun;Kobayashi T;Fujii N .Ultrasound effect on cross-flow filtration of polyaerylonitrile ultrafiltration membranes[J].Journal of Membrane Science,1998,148:129-135. |
| [7] | 镇祥华,于水利,王北福,赵方波.油田采出水中的超滤膜清洗[J].水处理技术,2006(02):57-59. |
| [8] | Li Jianxin;Sanderson R D;Jacobs E P .Ultrasonic cleaning of nylon microfilmtration membranes fouled by Kraft paper mill effluent[J].Journal of Membrane Science,2002,205:247-257. |
| [9] | 超声波辅助清洗啤酒发酵液污染微滤膜的研究[J].天津工业大学学报,2005(05):76-80,83. |
| [10] | 刘昕,葛伟,杨丽丽.超声波清洗膜污染的研究进展[J].环境与可持续发展,2006(04):45-47. |
| [11] | Mulder M.膜技术基本原理[M].北京:清华大学出版社,1999 |
| [12] | Muthukumaran S;Yang K;Seuren A .The use of ultrasonic for ultrafiltration membrane in the dairy industry[J].Separation and Purification Technology,2004,39:99-107. |
| [13] | Jin Wei;Guo Wei;Lu Xiaoping.Effects of ultrasound on fouled poly-vinylidenefluoride ultrafiltration membrane[A].北京,2005 |
| [14] | 张海峰.气脉冲清洗给水管道技术[J].清洗世界,2005(05):35-36,47. |
| [15] | Mikko O. Lamminen;Harold W. Walker;Linda K. Weavers .Mechanisms and factors influencing the ultrasonic cleaning of particle-fouled ceramic membranes[J].Journal of Membrane Science,2004(1/2):213-223. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%