Removal of nitrate and ammonium ions from livestock wastewater by hybrid systems composed of zero-valent iron and adsorbents
- Authors
- Ji, Min-Kyu; Ahn, Yong-Tae; Khan, Moonis Ali; Abou-Shanab, Reda A. I.; Cho, Yunchul; Choi, Jae-Young; Kim, Yong Je; Song, Hocheol; Jeon, Byong Hun
- Issue Date
- May-2011
- Publisher
- SELPER LTD
- Keywords
- Fe; filtralite; granular activated carbon; livestock wastewater; sepiolite
- Citation
- ENVIRONMENTAL TECHNOLOGY, v.32, no.16, pp.1851 - 1857
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL TECHNOLOGY
- Volume
- 32
- Number
- 16
- Start Page
- 1851
- End Page
- 1857
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/168454
- DOI
- 10.1080/09593330.2011.565079
- ISSN
- 0959-3330
- Abstract
- The feasibility of hybrid systems for simultaneous removal of nitrate (NO3-) and ammonium ions (NH4+) from livestock wastewater was examined in batch experiments. As a part of efforts to remove nitrate and ammonium simultaneously, Fe-0 and adsorbents including coconut-based granular activated carbon (GAC), sepiolite and filtralite were used. Various parameters such as adsorbent dosages and temperature were studied. Removal of NO3- increased with increase in temperature. Maximum NO3- removal (85.3%) was observed for the Fe-0-filtralite hybrid system at 45 degrees C for a 24 h reaction time. Increase in GAC and sepiolite dosages had significant (P ˂ 0.01) effect on the NH4+ removal efficiency, which was primarily due to the net negative surface charge of the adsorbents. The efficiency of hybrid systems for the removal of NO3- was in the order of filtralite ˃ sepiolite ˃ GAC, and the order of the removal of NH4+ was GAC ˃ sepiolite ˃ filtralite. The results of the present study suggest that the use of hybrid systems could be a promising innovative technology for achieving simultaneous removal of NO3- and NH4+ from livestock wastewater.
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Collections - 서울 공과대학 > 서울 자원환경공학과 > 1. Journal Articles
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