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Activity of Chlorelaa vulgaris Associated by Escherichia coli W3110 on Removal of Total Organic Carbon in Continuous River Water Flow System

  • Kong, Surk-Key (Department of Environmental Engineering, Joongbu University) ;
  • Nakajima Toshiuki (Department of Environmental Engineering, Joongbu University)
  • 발행 : 2002.09.30

초록

We investigated the association of Chlorella vulgaris and E. coli W9110 in removal of total organic carbon with the lab-scaled continuous river water flow system (CRWFS). Artificial wastewater was applied at two levels of organic carbon concentration; 1,335 $mg{\cdot}l^{-1}$ in the treatment (T)-1 and 267 $mg{\cdot}l^{-1}$ in T-2. The highest densities of C. vulgaris were $8.3{\times10^6\;cells{\cdot}ml^{-1}$ in T-1 and $6.9{\times}10^6\;cells{\cdot}ml^{-1}$ in T-2. The maximum densities of E. coli W3110 were $2.0{\times}10^8$ clony forming unit (CFU)${\cdot}ml^{-1}$ in T-1 and $3.9{\times}10^8\;CFU{\cdot}ml^{-1}$ in T-2. The densities increased during the first 11 days in T-q and 4 days in T-2, and decreased rapidly till 35th day, then increased slightly afterwards. This trend was prominent in T-2. It was inplied that wider range of nutrients was required in the growth of heterotrophic bacteria in T-2 than in T-1. The algal biomass should be increased effectively for the successful removal of organic carbon.

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피인용 문헌

  1. Biosorption of nutrients by Zygnema sterile and Lepocinclism textra biomass in high rate algae culture system vol.2, pp.1-3, 2009, https://doi.org/10.5004/dwt.2009.156