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기포탑내에서의 분뇨의 소화도에 대한 연구
A Study on the Digestion Degree of the Night Soil in a Bubble Column
HWAHAK KONGHAK, August 1993, 31(4), 403-408(6), NONE
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Abstract
분뇨처리장에서 채취한 분뇨를 기포탑에 넣고 시료의 희석배율, 공기의 폭기속도, 소화시간 및 분산판의 구멍 면적비에 따라 소화도를 측정하였다. 분뇨 용액의 소화도는 시료의 희석배율과 공기의 폭기속도가 증가할수록 증가하였으며 분산판의 구멍 면적비가 작을수록 크게 나타났다. 시료의 표면장력의 변화에 따른 소화도 측정법은 BOD에 의한 소화도 측정법에 비하여 정확도가 크게 나타났다. 이들 측정방법을 통하여 얻은 실험결과를 이용하여 소화도에 대한 추산식을 제안하였다.
The digestion degrees of the night soil which was taken from a night soil processing plant have been measured in a bubble column according to dilution ratios, aeration velocities, digestion time, and hole area ratios of distribution plate. Digestion degrees increased with increasing dilution ratios and aeration velocities, and they increased with decreasing hole area ratios of distribution plate. The surface tension measurement method for digestion degree gave high accuracy than BOD measurement method. We suggested the estimated digestion degree equations according to various experiment conditions.
References
Tenney MW, Echelberger WF, Coffey JJ, McAlon T, J. Water Pollut. Contr. Fed., 42, 1 (1970)
Goronszy MC, J. Water Pollut. Contr. Fed., 51, 274 (1979)
Metcalf E, "Wastewater Engineering Treatment, Disposal, Reuse," 2nd ed., McGraw-Hill, Boston, U.S.A. (1979)
Benefield LD, Randall CW, King PH, J. Water Pollut. Contr. Fed., 49, 269 (1977)
Ramalho RS, "Introduction to Wastewater Treatment Processes," 2nd ed., Academic Press, New York (1983)
Sato SS, Mukataka Kataaka H, Takahashi J, J. Ferment. Technol., 62, 71 (1984)
Guy C, Carreau PJ, Paris J, Can. J. Chem. Eng., 64, 23 (1986)
Koide K, Shibata K, Ito H, Kim SY, Ohtaguchi K, J. Chem. Eng. Jpn., 25, 11 (1992)
Greenberg AE, Trussell RR, Clesceri LS, "Standard Methods for the Examination of Water and Wastewater," 17th ed., APHA, Washington, D.C. (1989)
Goronszy MC, J. Water Pollut. Contr. Fed., 51, 274 (1979)
Metcalf E, "Wastewater Engineering Treatment, Disposal, Reuse," 2nd ed., McGraw-Hill, Boston, U.S.A. (1979)
Benefield LD, Randall CW, King PH, J. Water Pollut. Contr. Fed., 49, 269 (1977)
Ramalho RS, "Introduction to Wastewater Treatment Processes," 2nd ed., Academic Press, New York (1983)
Sato SS, Mukataka Kataaka H, Takahashi J, J. Ferment. Technol., 62, 71 (1984)
Guy C, Carreau PJ, Paris J, Can. J. Chem. Eng., 64, 23 (1986)
Koide K, Shibata K, Ito H, Kim SY, Ohtaguchi K, J. Chem. Eng. Jpn., 25, 11 (1992)
Greenberg AE, Trussell RR, Clesceri LS, "Standard Methods for the Examination of Water and Wastewater," 17th ed., APHA, Washington, D.C. (1989)
