title: [Applied study of the submerged macrophytes bed-immobilized bacteria in drinking water restoration].
abstract: The effect of submerged macrophytes bed-immobilized bacteria technology which applied in drinking water restoration was studied. Ammonifying bacteria, nitrobacteria, nitrosobacteria and denitrifying bacteria which isolated from Taihu Labe was immobilized to the porous carries, combined with the submerged macrophytes bed technology, we applied the new equipment in water restoration of gonghu bay, this equipment has good ability to resist storm, the denitrifying bacteria number increased from 5.4 x 10(2)-2.7 x 10(3) to 3.9 x 10(5)-9.1 x 10(5), N2O flux of experimental plot was 3-24 microg x (m2 x h)(-1), it's more than the contrast group obviously, TN concentration reduced 19% - 74%, while NO3- concentration reduced 24% -81% after the equipment running a period of time; The experimental data of 120 days showed that this technology is suitable for drinking water restoration, as it can control eutrophication.
authors.affiliation: State Key Laboratory of Pollutant Control and Resources Reuse, School of Environment, Nanjing University, Nanjing 210093, China. eniac17968@126.com
authors.forename: Qi-Chun
authors.initials: QC
authors.lastname: Chen
authors.forename: Zheng-Kui
authors.initials: ZK
authors.lastname: Li
authors.forename: Yi-Chao
authors.initials: YC
authors.lastname: Wang
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
authors.forename: Nian-Wen
authors.initials: NW
authors.lastname: Fan
mesh_terms: D001419:Bacteria / Q000145:classification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D018914:Cells, Immobilized / Q000378:metabolism; D002681:China; D058440:Denitrification; D060766:Drinking Water / Q000032:analysis*; D005068:Eutrophication; D009584:Nitrogen / Q000302:isolation & purification / Q000378:metabolism; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D060766:Drinking Water; D014874:Water Pollutants, Chemical; D009584:Nitrogen