제올라이트 여재의 암모니아성 질소 이온교환 능력에 따른 ZBAF의 질산화 효율 비교 = Comparison of Nitrification of ZBAF According to Ammonia Nitrogen Ion Exchange Capacity of Zeolite Media

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate nitrification by measuring the ammonia nitrogen adsorption ability of zeolite media. Zeolite adsorbs ammonia nitrogen through cation exchange. When zeolite is used as the filteration media in biological aerated filters (BAF), nitrifying bacteria can be easily attached. Using two types of zeolite that have different calcination temperatures, it was confirmed differences in nitrification rate relative to the ammonium ions exchange capacity of the zeolite media. The strength of the zeolite media was higher as calcination temperature was higher, while BET specific surface area was decreased. The ammonia nitrogen adsorption of the zeolite media at 600℃ was higher than at 900℃, but nitrification rates were similar when either media was used for the zeolite biological aerated filter (ZBAF). During the entire operation period, the 600℃ zeolite had an ammonia nitrogen removal rate of 0.31 kg/m³/d, and the 900℃ zeolite media had a rate of 0.28 kg/m³/d (p>0.05). When the influent was held on shutdown for a month and processing began again, the nitrification rate of the ZBAFs showed a similar amount of NO_x-N (sum of the concentration of nitrite and nitrate nitrogen) production within two days of reoperation that was similar to the rate before shutdown. The effect of water temperature had little effect on rate. Ammonia nitrogen removal by ZBAFs was maintained in water temperatures as low as 5℃. However, the ammonia nitrogen removal and nitrification rate were decreased in 600℃ zeolite media after 3 months of operation because media’s morphology changed.

참고문헌 (Reference)

1 나춘기, "흡착제의 흡착특성 규명을 위한 흡착모델의 적용성 평가(1)-흡착등온식을 이용한 평가" 대한환경공학회 33 (33): 606-616, 2011

2 신관우, "질소 처리에 있어서 A2/O-BAF 공정 평가" 한국수처리학회 20 (20): 63-71, 2012

3 김진수, "제올라이트 여재의 부착성장을 이용한 저농도 NH4 +-N의 생물학적 질산화 처리" 대한환경공학회 39 (39): 561-567, 2017

4 He, SB, "The performance of BAF using natural zeolite as filter media under conditions of low temperature and ammonium shock load" 143 : 291-295, 2007

5 He, SB, "The performance of BAF using natural zeolite as filter media under conditions of low temperature and ammonium shock load" 143 : 291-295, 2007

6 Ward, JW., "The nature of active sites on zeolites: Ⅰ. The decationated Y zeolite" 9 (9): 225-236, 1967

7 Qiu, L, "Performances and nitrification properties of biological aerated filters with zeolite, ceramic particle and carbonate media" 101 (101): 7245-7251, 2010

8 Young, B, "Low temeprature MBBR nitrification: Microboime analysis" 111 : 224-233, 2017

9 Delatolla, R, "Investigation of laboratory-scale and pilot-scale attached growth ammonia removal kinetics at cold temperature and low influent carbon" 45 (45): 427-436, 2010

10 하정협, "Impact of Media Type and Various Operating Parameters on Nitrification in Polishing Biological Aerated Filters" 대한환경공학회 15 (15): 79-84, 2010

11 Payraudeau, M., "Experience with an up-flow biological aerated filter (BAF) for tertiary treatment: from pilot trials to full scale implementation" 44 (44): 63-68, 2001

12 Ryu, HD, "Enhanced nitrification at short hydraulic retention time using a 3-stage biological aerated filter system incorporating an organic polishing reactor" 136 : 199-206, 2014

13 Jung, JY, "Enhanced ammonia nitrogen removal using consistent biological regeneration and ammonium exchange of zeolite in modified SBR process" 38 : 347-354, 2004

14 Chang, WS, "Effect of zeolite media for the treatment of textile wastewater in a biological aerated filter" 37 (37): 693-698, 2002

15 Lahav, O, "Ammonium removal using ion exchange and biological regeneration" 32 (32): 2019-2028, 1998

16 Won-Seok Chang, "Ammonium nitrogen removal characteristics of zeolite media in a Biological Aerated Filter (BAF) for the treatment of textile wastewater" 한국공업화학회 15 (15): 524-528, 2009