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Optimization of Cultural Conditions for Mixed Photosynthetic Bacteria Used for Wastewater Treatment

MA Nan et al(Zhejiang Gongshang University,Hangzhou,Zhejiang 310032)  
[Objective]The aim was to obtain the optimum cultural conditions for mixed photosynthetic bacteria.[Method]Optimized test was carried out under the environment and medium components on the multiplication of mixed photosynthetic bacteria(Rhodopseudomonas palustris,Rhodopseudomonas capsulate and Rhodopseudomonas spheroides).[Result]The results showed that the optimum conditions were 25% inoculums density,7.0initial pH,5 000 lx illumination intensity and 30 ℃ temperature.The optimum ratio of C/N was 4∶ 1.[Conclusion]It would provide guidances for industrialized application of photosynthetic bacteria.
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