열-알칼리 가용화 및 세정식 2상 혐기성 소화 혼합 공정을 통한 음식물류 폐기물 및 하수슬러지 병합 혐기성 소화
- Title
- 열-알칼리 가용화 및 세정식 2상 혐기성 소화 혼합 공정을 통한 음식물류 폐기물 및 하수슬러지 병합 혐기성 소화
- Other Titles
- Anaerobic Co-digestion of Food waste and Sewage sludge using Combined Thermal-Alkali Pre-Treatment andAnaerobic Digestion Elutriated Phased Treatment
- Author
- 김문일
- Keywords
- Food waste; Sewage sludge; Thermal-alkali pre-treatment; anaerobic co-digestion
- Issue Date
- 2019-07
- Publisher
- 한국열환경공학회
- Citation
- 열환경공학회지, v. 14, NO. 1, Page. 58-70
- Abstract
- This study was performed to evaluate the efficiency of the anaerobic co-digestion of food waste (FW) and sewage sludge(SS) using thermal-alkali pre-treatment and anaerobic digestion elutriated phased treatment(ADEPT). Through the evaluation of solubilization rate and methane yield, optimum thermal-alkali pre-treatment conditions were determined as follows: reaction temperature 140°C, NaOH concentration 60 meq/L, reaction time 60 min, mixture ratio 5:1(FW:SS=Wt.:Wt.). The removal efficiency of total chemical oxygen demand(TCOD), Soluble COD and volatile solid(VS) in the thermal-alkali pre-treatment ADEPT were 89%, 90% and 76%, respectively. The VS removal rate was 39% higher than that ADEPT at the same hydraulic retention time(HRT) of 7 days. Methane yield was estimated to be 0.378 L/g CODadded, which was 14% higher than that of phase II. As a result, it is considered that the application of combined pre-treatment and ADEPT is effective increasing the biogas and methane yield due to increasing the biodegradability of FW and SS.
- URI
- https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE08768437https://repository.hanyang.ac.kr/handle/20.500.11754/183184
- ISSN
- 2005-7458
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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