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 2024-01-20T16:00:30Z 2024-01-20T16:00:30Z 2022-01-10 2011-12 0959-3330 https://pubs.kist.re.kr/handle/201004/129740 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. English TAYLOR & FRANCIS LTD AQUEOUS-SOLUTION GREEN RUSTS REDUCTION ADSORPTION PH HYDROXYSULPHATE SEPIOLITE PRODUCTS LEACHATE DYES Removal of nitrate and ammonium ions from livestock wastewater by hybrid systems composed of zero-valent iron and adsorbents Article 10.1080/09593330.2011.565079 1 ENVIRONMENTAL TECHNOLOGY, v.32, no.16, pp.1851 - 1857 ENVIRONMENTAL TECHNOLOGY 32 16 1851 1857 scie scopus 000300178500003 2-s2.0-84857170031 Environmental Sciences Environmental Sciences & Ecology Article AQUEOUS-SOLUTION GREEN RUSTS REDUCTION ADSORPTION PH HYDROXYSULPHATE SEPIOLITE PRODUCTS LEACHATE DYES livestock wastewater Fe-0 granular activated carbon filtralite sepiolite