한국물환경학회지 (Journal of Korean Society on Water Environment)
- 제18권2호
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- Pages.113-122
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- 2002
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- 2289-0971(pISSN)
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- 2289-098X(eISSN)
Membrane Bioreactor를 이용한 폭발성 물질의 가수분해 부산물의 탈질과정에의 적용
Application of a Membrane Bioreactor in Denitrification of Explosives Hydrolysates
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조경덕
(서울대학교 보건대학원 환경보건학과)
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Zoh, Kyung-Duk
(Department of Environmental Health, Graduate School of Public Health, Seoul National University)
- 발행 : 2002.06.30
초록
A bench-scale anoxic membrane bioreactor (MBR) system, consisting of a bioreactor coupled to a ceramic crossflow ultrafiltration module, was evaluated to treat a synthetic wastewater containing alkaline hydrolysis byproducts (hydrolysates) of RDX, The wastewater was formulated the same as RDX hydrolysates, and consisted of acetate, formate, formaldehyde as carbon sources and nitrite, nitrate as electron accepters. The MBR system removed 80 to 90% of these carbon sources, and approximately 90% of the stoichiometric amount of nitrate, 60% of nitrite. The reactor was also operated over a range of transmembrane pressures, temperatures, suspended solids concentration, and organic loading rate in order to maximize treatment efficiency and permeate flux. Increasing transmembrane pressure and temperature did not improve membrane flux significantly. Increasing biomass concentration in the bioreactor decreased the permeate flux significantly. The maximum volumetric organic loading rate was
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