Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents

Min Kyu Ji; Won Bae Park; Moonis Ali Khan; Reda A I Abou-Shanab; Yongje Kim; Yunchul Cho; Jaeyoung Choi; Hocheol Song; Byong Hun Jeon

doi:10.1039/c2em10911e

Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents

Min Kyu Ji, Won Bae Park, Moonis Ali Khan, Reda A I Abou-Shanab, Yongje Kim, Yunchul Cho, Jaeyoung Choi, Hocheol Song, Byong Hun Jeon

Biotechnology Institute

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Nitrate (NO ₃ ^-) is a commonly found contaminant in groundwater and surface water. It has created a major water quality problem worldwide. The laboratory batch experiments were conducted to investigate the feasibility of HCl-treated zero-valent iron (Fe ⁰) combined with different adsorbents as hybrid systems for simultaneous removal of nitrate (NO ₃ ^-) and ammonium (NH ₄ ⁺) ions from aqueous solution. The maximum NO ₃ ^- removal in combined Fe ⁰-granular activated carbon (GAC), Fe ⁰-filtralite and Fe ⁰-sepiolite systems was 86, 96 and 99%, respectively, at 45 °C for 24 h reaction time. The NO ₃ ^- removal rate increased with the increase in initial NO ₃ ^- concentration. The NO ₃ ^- removal efficiency by hybrid systems was in the order of sepiolite > filtralite > GAC. The NH ₄ ⁺ produced during the denitrification process by Fe ⁰ was successfully removed by the adsorbents, with the removal efficiency in the order of GAC > sepiolite > filtralite. Results of the present study suggest that the use of a hybrid system could be a promising technology for achieving simultaneous removal of NO ₃ ^- and NH ₄ ⁺ ions from aqueous solution.

Original language	English (US)
Pages (from-to)	1153-1158
Number of pages	6
Journal	Journal of Environmental Monitoring
Volume	14
Issue number	4
DOIs	https://doi.org/10.1039/c2em10911e
State	Published - Apr 2012

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title = "Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents",

abstract = "Nitrate (NO 3 -) is a commonly found contaminant in groundwater and surface water. It has created a major water quality problem worldwide. The laboratory batch experiments were conducted to investigate the feasibility of HCl-treated zero-valent iron (Fe 0) combined with different adsorbents as hybrid systems for simultaneous removal of nitrate (NO 3 -) and ammonium (NH 4 +) ions from aqueous solution. The maximum NO 3 - removal in combined Fe 0-granular activated carbon (GAC), Fe 0-filtralite and Fe 0-sepiolite systems was 86, 96 and 99%, respectively, at 45 °C for 24 h reaction time. The NO 3 - removal rate increased with the increase in initial NO 3 - concentration. The NO 3 - removal efficiency by hybrid systems was in the order of sepiolite > filtralite > GAC. The NH 4 + produced during the denitrification process by Fe 0 was successfully removed by the adsorbents, with the removal efficiency in the order of GAC > sepiolite > filtralite. Results of the present study suggest that the use of a hybrid system could be a promising technology for achieving simultaneous removal of NO 3 - and NH 4 + ions from aqueous solution.",

author = "Ji, {Min Kyu} and Park, {Won Bae} and Khan, {Moonis Ali} and Abou-Shanab, {Reda A I} and Yongje Kim and Yunchul Cho and Jaeyoung Choi and Hocheol Song and Jeon, {Byong Hun}",

year = "2012",

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doi = "10.1039/c2em10911e",

language = "English (US)",

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T1 - Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents

AU - Ji, Min Kyu

AU - Park, Won Bae

AU - Khan, Moonis Ali

AU - Abou-Shanab, Reda A I

AU - Kim, Yongje

AU - Cho, Yunchul

AU - Choi, Jaeyoung

AU - Song, Hocheol

AU - Jeon, Byong Hun

PY - 2012/4

Y1 - 2012/4

N2 - Nitrate (NO 3 -) is a commonly found contaminant in groundwater and surface water. It has created a major water quality problem worldwide. The laboratory batch experiments were conducted to investigate the feasibility of HCl-treated zero-valent iron (Fe 0) combined with different adsorbents as hybrid systems for simultaneous removal of nitrate (NO 3 -) and ammonium (NH 4 +) ions from aqueous solution. The maximum NO 3 - removal in combined Fe 0-granular activated carbon (GAC), Fe 0-filtralite and Fe 0-sepiolite systems was 86, 96 and 99%, respectively, at 45 °C for 24 h reaction time. The NO 3 - removal rate increased with the increase in initial NO 3 - concentration. The NO 3 - removal efficiency by hybrid systems was in the order of sepiolite > filtralite > GAC. The NH 4 + produced during the denitrification process by Fe 0 was successfully removed by the adsorbents, with the removal efficiency in the order of GAC > sepiolite > filtralite. Results of the present study suggest that the use of a hybrid system could be a promising technology for achieving simultaneous removal of NO 3 - and NH 4 + ions from aqueous solution.

AB - Nitrate (NO 3 -) is a commonly found contaminant in groundwater and surface water. It has created a major water quality problem worldwide. The laboratory batch experiments were conducted to investigate the feasibility of HCl-treated zero-valent iron (Fe 0) combined with different adsorbents as hybrid systems for simultaneous removal of nitrate (NO 3 -) and ammonium (NH 4 +) ions from aqueous solution. The maximum NO 3 - removal in combined Fe 0-granular activated carbon (GAC), Fe 0-filtralite and Fe 0-sepiolite systems was 86, 96 and 99%, respectively, at 45 °C for 24 h reaction time. The NO 3 - removal rate increased with the increase in initial NO 3 - concentration. The NO 3 - removal efficiency by hybrid systems was in the order of sepiolite > filtralite > GAC. The NH 4 + produced during the denitrification process by Fe 0 was successfully removed by the adsorbents, with the removal efficiency in the order of GAC > sepiolite > filtralite. Results of the present study suggest that the use of a hybrid system could be a promising technology for achieving simultaneous removal of NO 3 - and NH 4 + ions from aqueous solution.

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Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents

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