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Effect of reactive media composition and co-contaminants on sulfur-based autotrophic denitrification
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Moon, Hee Sun | - |
dc.contributor.author | Chang, Sun Woo | - |
dc.contributor.author | Nam, Kyoungphile | - |
dc.contributor.author | Choe, Jaewan | - |
dc.contributor.author | Kim, Jae Young | - |
dc.date.accessioned | 2009-09-07 | - |
dc.date.available | 2009-09-07 | - |
dc.date.issued | 2006-12 | - |
dc.identifier.citation | Environmental Pollution 144, 802-807 | en |
dc.identifier.issn | 0269-7491 | - |
dc.identifier.uri | https://hdl.handle.net/10371/8766 | - |
dc.description.abstract | As a part of a study developing a biological reactive barrier system to treat nitrate-contaminated groundwater, the effects of reactive media composition and co-contaminants on sulfur-oxidizing autotrophic denitrification were investigated. The size of sulfur granules affected the denitrification rates; kinetic constants of 2.883, 2.949, and 0.677 mg-N-1/2/L-1/2/day were obtained when the granule sizes were below 2 mm, between 2 and 5 mm, and over 5 turn, respectively. When the volume ratios of sulfur to limestone were 1:1, 2:1, 3:1, and 4:1, kinetic constants of 5.490, 3.903, 4.072, and 2.984 mg-N-1/2/L-1/2/day were obtained, respectively. The presence of TCE up to 20 mg/L didn't significantly affect nitrate removal efficiency. At the TCE concentration of 80 mg/L, however, nitrate removal was markedly inhibited. Also, Zn and Cu inhibited the denitrification activity at more than 0.5 mg/L of concentration whereas Cr (VI) did not significantly affect the nitrate removal efficiency at all levels tested. (c) 2006 Elsevier Ltd. All rights reserved. | en |
dc.description.sponsorship | This research was supported by Eco-Technopia 21 Project
and by the KOSEF through the AEBRC at POSTECH. The authors thank the Research Institute of Engineering Science at Seoul National University for technical assistance. | en |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.subject | Autotrophic denitrification | en |
dc.subject | Sulfur granule size | en |
dc.subject | TCE | en |
dc.subject | Heavy metals | en |
dc.subject | Volume ratio of sulfur to limestone | en |
dc.title | Effect of reactive media composition and co-contaminants on sulfur-based autotrophic denitrification | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 문희선 | - |
dc.contributor.AlternativeAuthor | 장선우 | - |
dc.contributor.AlternativeAuthor | 남경필 | - |
dc.contributor.AlternativeAuthor | 조재완 | - |
dc.contributor.AlternativeAuthor | 김재영 | - |
dc.identifier.doi | 10.1016/j.envpol.2006.02.020 | - |
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