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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.8
- 수록면
- 554 - 560 (7page)
이용수
초록· 키워드
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This study focuses on nitrification through a biological aerated filter (BAF) that is filled with a zeolite medium at low concentrations of ammonia. The zeolite medium consists of natural zeolite powder. The BAF is operated under two types of media, which are a ball-type zeolite medium and expanded poly propylene (EPP) medium. Nitrification occurred in the zeolite BAF (ZBAF) when the influent concentration of ammonia nitrogen was 3 mg L-1, but the BAF that was filled with an EPP medium did not experience nitrification. The ammonia nitrogen removal efficiency of ZBAF was 63.38% and the average nitrate nitrogen concentration was 1.746 mg/L. The ZBAF was tested again after a comparison experiment to treat pond water, and municipal wastewater mixed pond water. The ZBAF showed remarkable ammonia-nitrogen treatment at low concentration and low temperature. During this period, the average ammonia nitrogen removal efficiency was 64.56%. Especially, when water temperature decreased to 4.7℃, ammonia nitrogen removal efficiency remained 79%. On the other hand, the chemical-oxygen demand (COD) and phosphorus-removal trends were different. The COD and phosphorus did not show as efficient treatment as the ammonia-nitrogen treatment.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (25)
참고문헌 신청
Wang Y, Kmiya Y, Okuhara T. Removal of low-concentration ammonia in water by ion-exchange using Na-mordenite. Water Res. 2007;41:269-276.
Li M, Zhu X, Zhu F, Ren G, Cao G, Song L. Application of modified zeolite for ammonium removal from drinking water. Desalination 2011;273:295-300.
Wang S, Peng Y. Natural zeolites as effective adsorbents in water and wastewater treatment. Chem. Eng. J. 2010;156:11-24.
Moussavi G, Talebi S, Farrokhi M, Sabouti RM. The investigation of mechanism, kinetic and isotherm of ammonia and humic acid co-adsorption onto natural zeolite. Chem. Eng. J. 2011;171:1159-1169.
Sarioglu M. Removal of ammonium from municipal wastewater using natural Turkish (Dogantepe) zeolite. Sep. Purif. Technol. 2005;41:1-11.
Li M, Zhu X, Zhu F, Ren G, Cao G, Song L. Application of modified zeolite for ammonium removal from drinking water. Desalination 2011;273:295-300.
Wang S, Peng Y. Natural zeolites as effective adsorbents in water and wastewater treatment. Chem. Eng. J. 2010;156:11-24.
Moussavi G, Talebi S, Farrokhi M, Sabouti RM. The investigation of mechanism, kinetic and isotherm of ammonia and humic acid co-adsorption onto natural zeolite. Chem. Eng. J. 2011;171:1159-1169.
Sarioglu M. Removal of ammonium from municipal wastewater using natural Turkish (Dogantepe) zeolite. Sep. Purif. Technol. 2005;41:1-11.
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UCI(KEPA) : I410-ECN-0101-2020-539-000378763