Yangtze River Water Treatment by Spiral UF Membrane with Coagulation Pretreatment

Abstract:

To further determine the effects of operational condition on water quality and to prepare a integrated unit for waterworks on a small or medium-sized in future, an experiment using Yangtze River source water(site in Zhenjiang) as raw water was carry out to run continuously for six months by applying the in-line microflocculation/sand filtration/ spiral UF membrane process. The results show that the coagulant dosage of 3~5 mg/L(as Fe), the sand filtration at a speed of 19.5m/h and the filtration flux at 1m3/m2.d can efficient in discharging the most suspensions, and a part of organics from water can de removed. The turbidity in sand-filtration treated water value of 3~10 NTU may cause little change in trans-membrane pressure difference and increase operating efficiency, while turbidity value is less than 2 NTU , much change is observed in the trans-membrane pressure difference. Although the wash pressure and membrane feed water quality have effect on the trans-membrane pressure difference, the wash pressure is not an important influencing the trans-membrane pressure difference.

• Periodical: Advanced Materials Research (Volumes 113-116)
• Pages: 1524-1528
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.113-116.1524
• Online since: June 2010
• Authors: Yan Chen, Guo Zhen Zhang, Zi Wen Xiao
• Keywords: Drinking Water Treatment, Spiral UF Membrane, Yangtze River Source Water

References

[1] B. Nicolaisen: Developments in membrane technology for water treatment, Desalination , Vol. 153 (1-3) (2003) , pp.355-360.

DOI: 10.1016/s0011-9164(02)01127-x

[2] B. Schlichter, V. Mavrov, H. Chmiel: Study of a hybrid process combining ozonation and membrane filtration-filtration of model solutions. Desalination, Vol. 156 (1-3) (2003), pp.257-265.

DOI: 10.1016/s0011-9164(03)00348-5

[3] D. Skol, K. Konieczny: Application of coagulation and conventional filtration in raw water pretreatment before microfiltration membranes, Desalination, Vol. 162 (1-3) (2004), pp.61-73.

DOI: 10.1016/s0011-9164(04)00028-1

[4] M. Kabsch-Korbutowicz: Application of ultrafiltration integrated with coagulation for improved NOM removal. Desalination, Vol. 174 (1) (2005) , pp.13-22.

DOI: 10.1016/j.desal.2004.08.037

[5] K. Konieczny, G. Klomfas: Using activated carbon to improve natural water treatment by porous membranes, Desalination , Vol. 147 (1-3) (2002) , pp.109-116.

DOI: 10.1016/s0011-9164(02)00584-2

[6] S. Xia, Y.N. Liu, X. Li, J.J. Yao: Drinking water production by ultrafiltration of Songhuajiang River with PAC adsorption, Journal of Environmental Sciences-China, Vol. 19 (5) (2007) , pp.536-539.

DOI: 10.1016/s1001-0742(07)60089-8

[7] Y. CHEN, B.Z. DONG,N.Y. Gao, et al: Effect of coagulation pretreatment on fouling of an ultrafiltration membrane. Desalination, Vol. 204（2007）, pp.181-188.

DOI: 10.1016/j.desal.2006.04.029

[8] LI Wei-ying, DONG Bin-zhi, FAN Jin-chu , et al: The Treatment of the Yangtse River by Coagulation Association with Ultrafiltration. 2001 International Conference on the Application of Membrane Technology, September 17～23, (2001).

[9] LI Jing-hua DONG Bin-zhi, CAO Da-wen, et al: Ultrafiltration of Huaihe River Water Source Combined with Coagulation. (2001) China-Japan Symposium on Water Treatment Technology, November 22-24, (2001), Shanghai, China.