M. J. Lehtola, I. T. Miettinen, T. Vartiainen, T. Myllykangas and P. J. Martikainen, “Microbially avail-able organic carbon, phosphorus and microbial growth in ozonited drinking water,” Water Research, Vol. 35, No. 7, pp. 1635–1640, July 2001.
 J. Q. Sang, G. Z. Yu, X. H. Zhang and Z. S. Wang, “Re-lation between phosphorus and bacterial regrowth in drinking water,” Chinese Journal of Environmental Sci-ence, Vol. 24, No. 4, pp. 81–84, April 2003.
 W. Nishijima, E. Shoto and M. Okada, “Improvement of biodegradation of organic substance by addition of phosphorus in biological activated carbon,” Water Sci-ence and Technology, Vol. 36, No. 12, pp. 251–257, De-cember 1997.
 N. B. Hua and Y. Z. Ruan, “Microstructures of active alumina reproduction by heat-treatment method,” Journal of Fuzhou University (Natural Science Edition), Vol. 35, No. 1, pp. 81–84, January 2007.
 H. Xie, W. B. Jia and Z. G. Wu, , “Performance of acti-vated aluminum oxide as a fluorine-removal agent,” Journal of Huazhong University of Science and Tech-nology (medical sciences), Vol. 34, No. 5, pp. 644–646, May 2005.
 X. H. Zhang, X. C. Xiang and Q. Y. Meng, “Study on a new filtration medium-activated anthracite coal and its filtration process,” Water Purification Technology, Vol. 26, No. 1, pp. 54–57, July 2007.