| Title: | Removal of odorous compounds emitted from a food-waste composting facility in Korea using a pilot-scale scrubber |
| Author(s): | Valdehuesa KNG; Nisola GM; Lee SP; Anonas AV; Tuuguu E; Galera MM; Cho E; Chung WJ; |
| Address: | "a Energy and Environment Fusion Technology Center (E2FTC), Department of Energy Science and Technology (DEST) , Myongji University , Nam-dong, Cheoin-gu, Yongin-si , Gyeonggi-do , South Korea" |
| Journal Title: | J Environ Sci Health A Tox Hazard Subst Environ Eng |
| DOI: | 10.1080/10934529.2018.1474586 |
| ISSN/ISBN: | 1532-4117 (Electronic) 1093-4529 (Linking) |
| Abstract: | "Monitoring and control of odorous compound emissions have been enforced by the Korean government since 2005. One of the point sources for these emissions was from food waste composting facilities. In this study, a pilot-scale scrubber installed in a composting facility was evaluated for its performance in the removal of malodorous compounds. The exhaust stream contained ammonia and methylamine as the major odorants detected by the threshold odor test and various instrumental techniques (GC-FID, FPD, MS and HPLC/UV). For the scrubber operation, the column was randomly packed with polypropylene Hi-Rex 200, while aqueous sulfuric acid was selected as the scrubbing solution. To achieve 95% removal, the scrubber must be operated by using H(2)SO(4) solution with pH at < 6.5, liquid to gas ratio > 4.5, gas loading rate < 1750 m(3)/m(3)-hr and contact time < 0.94 s. The scrubber performance was further evaluated by determining the mass transfer coefficients and then monitoring for 355 days of operation. The pilot-scale scrubber maintained > 95% ammonia and methylamine removal efficiencies despite the fluctuations in the inlet (from composting facility exhaust stream) concentration. The optimum operating conditions and scrubber performance indicators determined in this study provides a basis for the design of a plant-scale scrubber for treatment of composting facility gas emissions" |
| Keywords: | "Ammonia/chemistry Chromatography, Gas *Composting/instrumentation/methods *Food Humans *Odorants/prevention & control Pilot Projects *Refuse Disposal/instrumentation/methods Republic of Korea Sulfuric Acids/isolation & purification Volatile Organic Compou;" |
| Notes: | "MedlineValdehuesa, Kris Nino G Nisola, Grace M Lee, Seong-Poong Anonas, Alex V Tuuguu, Enkhdul Galera, Melvin M Cho, Eulsaeng Chung, Wook-Jin eng Evaluation Study England 2018/05/31 J Environ Sci Health A Tox Hazard Subst Environ Eng. 2018; 53(12):1094-1101. doi: 10.1080/10934529.2018.1474586. Epub 2018 May 29" |
