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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.3
- 수록면
- 59 - 66 (8page)
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The aim of this study was to assess the effect of pre-aeration on sludge solubilization and the behaviors of nitrogen, dissolved sulfide, sulfate, and siloxane. The results of this study showed that soluble chemical oxygen demand in sewage sludge could be increased through pre-aeration. The pre-aeration process resulted in a higher methane yield compared to the anaerobic condition (blank). The pre-aeration of sewage sludge, therefore, was shown to be an effective method for enhancing the digestibility of the sewage sludge. In addition, this result confirms that the pre-aeration of sewage sludge prior to its anaerobic digestion accelerates the growth of methanogenic bacteria. Removal rates for NH₃-N and T-N increased simultaneously during pre-aeration, indicating simultaneous nitrification and denitrification. The siloxane concentration in sewage sludge decreased by 40% after 96 hr of pre-aeration: in contrast, the sulfide concentration in sewage sludge did not change. Therefore, pre-aeration can be employed as an efficient treatment option to achieve higher methane yield and lower siloxane concentration in sewage sludge. In addition, reduction of nitrogen loading by pre-aeration can reduce operating costs to achieve better effluent water quality in wastewater treatment plant and benefit the anaerobic process by minimizing the toxic effect of ammonia.
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참고문헌 (38)
참고문헌 신청
1. [학술지(정기간행물)] - Appels L / 2008 / Principles and potential of the anaerobic digestion of waste-activated sludge / Prog. Energy Combust. Sci 34 : 755 ~ 781
2. [학술지(정기간행물)] - Kim J / 2013 / Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: effects on sludge disintegration, methane production, and methanogen community structure / Bioresour. Technol 144 : 194 ~ 201
3. [학술지(정기간행물)] - Dewil R / 2007 / Peroxidation enhances the biogas production in the anaerobic digestion of biosolids / J. Hazard. Mater 146 : 577 ~ 581
4. [학술지(정기간행물)] - Dhar BR / 2011 / Pretreatment of municipal waste activated sludge for volatile sulfur compounds control in anaerobic digestion / Bioresour. Technol 102 : 3776 ~ 3782
5. [학술지(정기간행물)] - Carrere H / 2010 / Pretreatment methods to improve sludge anaerobic degradability: a review / J. Hazard. Mater 183 : 1 ~ 15
2. [학술지(정기간행물)] - Kim J / 2013 / Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: effects on sludge disintegration, methane production, and methanogen community structure / Bioresour. Technol 144 : 194 ~ 201
3. [학술지(정기간행물)] - Dewil R / 2007 / Peroxidation enhances the biogas production in the anaerobic digestion of biosolids / J. Hazard. Mater 146 : 577 ~ 581
4. [학술지(정기간행물)] - Dhar BR / 2011 / Pretreatment of municipal waste activated sludge for volatile sulfur compounds control in anaerobic digestion / Bioresour. Technol 102 : 3776 ~ 3782
5. [학술지(정기간행물)] - Carrere H / 2010 / Pretreatment methods to improve sludge anaerobic degradability: a review / J. Hazard. Mater 183 : 1 ~ 15
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UCI(KEPA) : I410-ECN-0101-2017-539-001538955