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A. Pecharaply, A. P. Annachhatre and A. P. Parkpian, “Influence of Anaerobic Codigestion of Sewage and Brewery Sludges on Biogas Production and Sludge Quality,” Journal of Environmental Science and Health, Part A. Toxic/Hazardous Substances and Environmental Engineering, Vol. 42, No. 7, 2007, pp. 911-923.

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• TITLE: Restoration Study of Microorganisms in Lake Water Purification

  AUTHORS: Fang Yang, Rui Zhu

  KEYWORDS: Water Purification Microorganisms; COD; Total Phosphorus; Total Nitrogen

  JOURNAL NAME: Engineering, Vol.5 No.10B, December 18, 2013

  ABSTRACT: We screened the bacteria with restoration and purification functions in lake water and found that,Bacillus subtilishad the highest water purification ability. Photosynthetic bacteria, lactobacillus bacteria, nitrifying bacteria and oligotrophic bacteria also showed different levels of lake water purification and restoration. L1873orthogonal experiments were designed to optimize the ratio of complex agents to get the best ratio of various bacteria as 10g/LBacillus subtilis, 2g/L photosynthetic bacteria, 0.8g/L lactobacillus, 0.6g/L nitrifying bacteria 1, 0.4g/L nitrifying bacteria 2 and 0.6g/L oli-gotrophic bacteria. When lake water was purified for 30 d under this ratio, total phosphorus content decreased 85.90%, total nitrogen content decreased 70.96%, and COD value decreased 81.19%.