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- Publisher Website: 10.1016/j.watres.2007.08.038
- Scopus: eid_2-s2.0-38949083490
- PMID: 17915286
- WOS: WOS:000254111000008
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Article: Predictions of nitrate diffusion in sediment using horizontal attenuated total reflection (HATR) by Fourier transform infrared (FTIR) spectrometry
Title | Predictions of nitrate diffusion in sediment using horizontal attenuated total reflection (HATR) by Fourier transform infrared (FTIR) spectrometry |
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Authors | |
Keywords | Bioremediation Diffusion FTIR Nitrate Prediction Sediment |
Issue Date | 2008 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/watres |
Citation | Water Research, 2008, v. 42 n. 4-5, p. 903-908 How to Cite? |
Abstract | Using a novel and simple method based on horizontal attenuated total reflection (HATR) by Fourier transform infrared (FTIR) spectrometry, the effective diffusion coefficient, De, of nitrate in a contaminated anthropogenic sediment was estimated as 7.34×10-6 cm2 s-1. This method, which requires as little as 1 mL of sediment sample, was able to measure the De of a chemical species with a reproducibility of ±3% in about 5 h. Based on this De and a pre-determined nitrate reduction rate, the profiles of nitrate concentration in two sediment columns were satisfactorily predicted from a mathematical model. Results showed that the profile in this aged sediment depended mainly on the diffusion of nitrate and, only to a much lesser degree, the rate of nitrate reduction. Measurements in 55 anthropogenic sediment samples collected from five locations and various depths of a contaminated site further showed that the De of nitrate increased linearly with the water content of the sediment, but decreased with the sediment density. The technique demonstrated in this study shall be applicable for the risk assessment of toxic pollutants in contaminated sediments, and for planning the spatial and time intervals of nitrate injection strategy in bioremediation. © 2007 Elsevier Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/71362 |
ISSN | 2023 Impact Factor: 11.4 2023 SCImago Journal Rankings: 3.596 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fang, HHP | en_HK |
dc.contributor.author | Zhang, M | en_HK |
dc.contributor.author | Zhang, T | en_HK |
dc.contributor.author | Chen, J | en_HK |
dc.date.accessioned | 2010-09-06T06:31:18Z | - |
dc.date.available | 2010-09-06T06:31:18Z | - |
dc.date.issued | 2008 | en_HK |
dc.identifier.citation | Water Research, 2008, v. 42 n. 4-5, p. 903-908 | en_HK |
dc.identifier.issn | 0043-1354 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/71362 | - |
dc.description.abstract | Using a novel and simple method based on horizontal attenuated total reflection (HATR) by Fourier transform infrared (FTIR) spectrometry, the effective diffusion coefficient, De, of nitrate in a contaminated anthropogenic sediment was estimated as 7.34×10-6 cm2 s-1. This method, which requires as little as 1 mL of sediment sample, was able to measure the De of a chemical species with a reproducibility of ±3% in about 5 h. Based on this De and a pre-determined nitrate reduction rate, the profiles of nitrate concentration in two sediment columns were satisfactorily predicted from a mathematical model. Results showed that the profile in this aged sediment depended mainly on the diffusion of nitrate and, only to a much lesser degree, the rate of nitrate reduction. Measurements in 55 anthropogenic sediment samples collected from five locations and various depths of a contaminated site further showed that the De of nitrate increased linearly with the water content of the sediment, but decreased with the sediment density. The technique demonstrated in this study shall be applicable for the risk assessment of toxic pollutants in contaminated sediments, and for planning the spatial and time intervals of nitrate injection strategy in bioremediation. © 2007 Elsevier Ltd. All rights reserved. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/watres | en_HK |
dc.relation.ispartof | Water Research | en_HK |
dc.subject | Bioremediation | - |
dc.subject | Diffusion | - |
dc.subject | FTIR | - |
dc.subject | Nitrate | - |
dc.subject | Prediction | - |
dc.subject | Sediment | - |
dc.subject.mesh | Diffusion | en_HK |
dc.subject.mesh | Geologic Sediments - analysis | en_HK |
dc.subject.mesh | Models, Theoretical | en_HK |
dc.subject.mesh | Nitrates - analysis - metabolism | en_HK |
dc.subject.mesh | Oxidation-Reduction | en_HK |
dc.subject.mesh | Spectroscopy, Fourier Transform Infrared | en_HK |
dc.subject.mesh | Water Pollutants, Chemical - analysis - metabolism | en_HK |
dc.title | Predictions of nitrate diffusion in sediment using horizontal attenuated total reflection (HATR) by Fourier transform infrared (FTIR) spectrometry | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0043-1354&volume=42&spage=903&epage=908&date=2008&atitle=Predictions+of+nitrate+diffusion+in+sediment+using+horizontal+attenuated+total+reflection+(HATR)+by+Fourier+transform+infrared+(FTIR)+spectrometry | en_HK |
dc.identifier.email | Fang, HHP:hrechef@hkucc.hku.hk | en_HK |
dc.identifier.email | Zhang, T:zhangt@hkucc.hku.hk | en_HK |
dc.identifier.authority | Fang, HHP=rp00115 | en_HK |
dc.identifier.authority | Zhang, T=rp00211 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.watres.2007.08.038 | en_HK |
dc.identifier.pmid | 17915286 | - |
dc.identifier.scopus | eid_2-s2.0-38949083490 | en_HK |
dc.identifier.hkuros | 148380 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-38949083490&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 42 | en_HK |
dc.identifier.issue | 4-5 | en_HK |
dc.identifier.spage | 903 | en_HK |
dc.identifier.epage | 908 | en_HK |
dc.identifier.isi | WOS:000254111000008 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Fang, HHP=7402542625 | en_HK |
dc.identifier.scopusauthorid | Zhang, M=23491164000 | en_HK |
dc.identifier.scopusauthorid | Zhang, T=24470677400 | en_HK |
dc.identifier.scopusauthorid | Chen, J=12763271400 | en_HK |
dc.identifier.issnl | 0043-1354 | - |