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박주형 ( J. H. Park ),신응배 ( E. B. Shin ),김연권 ( Y. K. Kim ),홍재용 ( J. Y. Hong ),이의신 ( E. S. Lee ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.6
In order to see the storage and reuse capability of microorganisms, the intracellular storage compounds were induced using glucose or acetate as a sole carbon source. For the intracellular storage compounds reused without the addition of extra substrate, the μ_max(d^-1) and K_m(mg COD utilized/mg active VSS/d) values were 2.1∼3.7, 2.8∼5 for glucose and 1.8∼2.2, 2.8∼3.4 for acetate, respectively. Reusable fraction of the intracellular storage compounds were observed 18.5∼26.1% and 45.8∼47.6% as initial COD concentration for glucose and acetate, respectively. Prediction of the COD fraction was made using the NUR measurement and it was found that an error of COD fractionation was generated in terms of COD fraction when using microorganisms from the advanced treatment process. This error was due to the intracellular storage period for microorganisms and the error in COD fraction was observed about 10 % in terms of Ss(readily biodegradable COD) concentration. The storage and reuse capability of microorganisms would use to control purpose of the advanced wastewater treatment process.
조만재(M . J . Cho),신응배(E . B . Shin),김연권(Y . K . Kim),배우근(W . K . Bae) 한국물환경학회 2001 한국물환경학회지 Vol.17 No.3
The sewer sediment vary widely in character and composition: some are essentially inorganic, while others have significant organic content. The objective of this study is to estimate the effect of the solids and to analyse such characteristics as concentration and particle size distribution of the pollutants emanating from sediments in the combined sewer network in the study area. The concentrations observed are 3 to 25 times higher than those of dry weather conditions. The concentrations of the pollutant from the sediments are similar to those of the combined sewer overflows(CSOs) in an initial phase. The particle size observation has shown that more pollutant load is likely from the smaller particles of the sediment than from the larger particles. This is generally expected since small the particle more chances for resuspension and more organics are in the smaller particle range.