반류수 처리를 위한 생물막 아질산화공정에서 유기물과 고형물 농도에 따른 온도 영향 평가The Evaluation of Temperature Effects on Biofilm Nitritation System with Various Organic and Solid Concentrations for High Strength Reject Water Treatment
- Other Titles
- The Evaluation of Temperature Effects on Biofilm Nitritation System with Various Organic and Solid Concentrations for High Strength Reject Water Treatment
- Authors
- 이한샘; 이상일; 윤주환
- Issue Date
- 2011
- Publisher
- 한국물환경학회
- Keywords
- Biofilm; Nitritation; Reject water; Temperature effect; Biofilm; Nitritation; Reject water; Temperature effect
- Citation
- 한국물환경학회지, v.27, no.6, pp.769 - 775
- Indexed
- KCI
- Journal Title
- 한국물환경학회지
- Volume
- 27
- Number
- 6
- Start Page
- 769
- End Page
- 775
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/114322
- ISSN
- 2289-0971
- Abstract
- An experimental study of biofilm nitritation system for high-strength ammonium wastewater has been carried out to examine the temperature effect on different organic and solid concentration. Operating temperature varied from 35°C to 15°C. The influent N concentration of identical three reactors was adjusted to about 300 mg NH_4-N/L. A control unit fed with a synthetic wastewater, while the others were fed with reject water which is consisted of the supernatant of both digester and thickener. The results indicated that nitrite accumulation was stable in temperature range of 35°C to 25°C. However, nitritation was significantly reduced at below 20°C. Free ammonia (FA) and free nitrous acid (FNA) were major inhibitors to the nitrite oxidizer for nitrite accumulation in lower temperature. From the estimation of temperature coefficient (θ) of biofilm and suspended nitritation system, biofilm nitritation system could absorb the negative temperature effect compared with suspended nitritation system.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science and Technology > Department of Environmental Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.