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Huan Jing Ke Xue ; 26(1): 84-9, 2005 Jan.
Article in Chinese | MEDLINE | ID: mdl-15859414

ABSTRACT

The quality of eutrophic waters was improved by the algae-bacterium biofilm, which covered over the artificial aquatic mat made from a kind of mend macromolecule material. Two series of experiments show that using the artificial aquatic mat technique, algae bloom was inhibited markedly. At the eleventh day, the transparency was increased from 6 cm to 62 cm; and the concentrations of COD(Mn), TP, TN and NH4(+) -N were decreased to 92.89%, 49.25% , 94.97% and 70.15% respectively. The DO concentration also kept in certain satisfied level for using the algae-bacterium biofilm method. The suitable and economical density was about 8 - 16 bunchs/m(2) when the ratio of the artificial aquatic mat length to water depth was 0.7.


Subject(s)
Bacteria/growth & development , Biofilms , Eukaryota/growth & development , Eutrophication , Water Purification/methods , Fresh Water , Water Pollution/prevention & control
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