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천연 제올라이트를 이용한 고농도 질소 회수Recovery of nitrogen from high strength waste stream by using natural zeolite (Clinoptilolite)
- Other Titles
- Recovery of nitrogen from high strength waste stream by using natural zeolite (Clinoptilolite)
- Authors
- 최오경; 이재우; 이관형; Dong Dandan
- Issue Date
- 2016
- Publisher
- 대한상하수도학회
- Keywords
- Clinoptilolite; 고농도 질소; 질소 회수; 제올라이트; Clinoptilolite; High-concentration nitrogen; Nitrogen recovery; Zeolite
- Citation
- 상하수도학회지, v.30, no.1, pp.105 - 111
- Indexed
- KCI
- Journal Title
- 상하수도학회지
- Volume
- 30
- Number
- 1
- Start Page
- 105
- End Page
- 111
- ISSN
- 1225-7672
- Abstract
- This paper presents the applicability of natural zeolite (Clinoptilolite) for recovery of ammonium nitrogen from high-strength wastewater stream. Isotherm experiments showed the ammonium exchange Clinoptilolite followed Freundlich isotherm and its maximum exchange capacity was 18.13 mg NH4 +-N/g zeolite. The X-ray photoelectron spectroscopy (XPS) analysis indicated that a significant amount of nitrogen was adsorbed to the Clinoptilolite. Optimal flowrate for recovery of high concentration ammonium nitrogen was determined at 16 BV/d (=19.2 L/min) throughout the lab-scale column studies operated under various flowrate conditions. This study also provided a method to determine the recovery rate of final product of nitrogen fertilizer based on the model application to the lab-scale continuous data.
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Collections - Graduate School > Department of Environmental Engineering > 1. Journal Articles
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