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DOI : , Vol.20, No.1, 11 ~ 20, 2012
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| Title |
| Mass Balance-Based Model for the Emission of Greenhouse Gas from Biological Wastewater Treatment Process |
| 이은미 Eun Mee Lee , 김정숙 Jeong Sook Kim , 정창욱 Chang Wook Jeong , 이병헌 Byung Hun Lee |
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| Abstract |
| Major greenhouse gases such as C02, CH4 and N20 were produced from municipal wastewater treatment systems. N20 among those gas elements has a great concern due to its potential capacity in contributing on a greenhouse effect because Its radioactive force per molecule is greater than that of carbon dioxide. In this study. we investigated major gases invoking a greenhouse effect in activated sludge process and can be calculated through the whole WWTP. The results of this study showed that TCOD(cr),. T88. TN and TP concentration of effluent were 70.9, 6.3. 15.8 and 1.2mg/L, respectively. The results of this study to estimate greenhouse gas emission factors from municipal wastewater treatment plants are follows; C02. CH4 and N20 emission in aeration tank of activated sludge process were 24gCO2/m3, 0gCH4/m3 and 0.17gN20/m3, respectively. CO2. CH4 and N2O emission in anaerobic digestion tank were 636gCO2/m3, 10.075gCH4/m3 and 0gN2O/m3, respectively. Total greenhouse gas(T GHG) in municipal wastewater treatment system was 10.793gCO2 eq/m3. Greenhouse gases emission in municipal wastewater treatment system was greater in aeration tank than in anaerobic digestion tank. By assigning a stoichiometric composition (x, Y. z and a in C(x)H(y)O(z)N(a)) to influent wastewater organic fractions and ammonia and the products generated from them via the biological processes. are tracked through the WWTP. |
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| Key Words |
| mass balance-based model, WWTP, greenhouse gas, municipal wastewater treatment |
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