6Furukawa K,Ichimatsu Y,Harada C,et al. Nitrification of polluted urban river waters usingzeolite-coated nonwovens [J].Journal of EnvironmentaIScience and Health, 2000,35(8):1267-1278.
7Robert L. India cleans up polluted lakes and rivers[J]. Water and Wastewater International, 2003, 18(3):14.