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Preservation Of Arsenic Species - Gautam Samanta
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Preservation Of Arsenic Species - livre d'occasion

ISBN: 9781843399698

In order to establish effective treatment removal strategies for arsenic, it is important to know the actual concentrations of As(III) and As(V) in drinking waters. Due to its anionic cha… Plus…

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Preservation Of Arsenic Species - nouveau livre

ISBN: 9781843399698

In order to establish effective treatment removal strategies for arsenic, it is important to know the actual concentrations of As(III) and As(V) in drinking waters. Due to its anionic cha… Plus…

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Preservation of Arsenic Species - Clifford, Dennis A. Samanta, Gautam
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Clifford, Dennis A. Samanta, Gautam:
Preservation of Arsenic Species - Livres de poche

ISBN: 9781843399698

[ED: Taschenbuch], [PU: AWWARF], In order to establish effective treatment removal strategies for arsenic, it is important to know the actual concentrations of As(III) and As(V) in drinki… Plus…

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Dennis A. Clifford#Gautam Samanta:
Preservation of Arsenic Species - nouveau livre

ISBN: 9781843399698

Preservation of Arsenic Species In order to establish effective treatment removal strategies for arsenic, it is important to know the actual concentrations of As(III) and As(V) in drinkin… Plus…

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Preservation of Arsenic Species - Dennis A. Clifford; Gautam Samanta
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Dennis A. Clifford; Gautam Samanta:
Preservation of Arsenic Species - Livres de poche

2007, ISBN: 9781843399698

Softcover, Buch, [PU: IWA Publishing]

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Détails sur le livre
Preservation of Arsenic Species

In order to establish effective treatment removal strategies for arsenic, it is important to know the actual concentrations of As(III) and As(V) in drinking waters. Due to its anionic character, As(V) can be removed more easily than As(III). The distribution of As(III) and As(V) species depends greatly on the abundance of redox-active solids, especially organic carbon, the activity of microorganisms, and the extent of diffusion of O2 from the atmosphere. In strongly reducing aquifers, As(III) is the dominant species based on the thermodynamic considerations, whereas As(V) is the more stable oxidation state under oxic conditions or in oxygenated waters. Based on extensive experimental results in Fe(II)-contaminated challenge water, it was found that EDTA-HAc could be used to preserve the arsenic species for at least 28 days in opaque plastic bottles. Although the alternative preservatives, H2SO4 and H3PO4, successfully preserved the original As(III)/(V) speciation under some conditions, these preservatives were generally unsuccessful for the desired 28-day period under reducing and oxidizing conditions in the sample pH range of 6.5?V8.4 and in the presence of 3 mg/L Fe(II).A comprehensive, systematic study was conducted to determine the effect of ferrous iron on the stability of arsenic species. Among the promising preservatives described in the literature, H2SO4, H3PO4, EDTA, and EDTA-HAc were chosen for this study. The combined results of two AwwaRF arsenic analysis projects?oField Speciation Method for Arsenic Inorganic Species and this project, Preservation of Arsenic Species have yielded a method for immediate field-speciation and a preservation technique for speciation within 30 days of sampling. Limited field verifications of these methods, which give statistically indistinguishable results, have been completed.

Informations détaillées sur le livre - Preservation of Arsenic Species


EAN (ISBN-13): 9781843399698
ISBN (ISBN-10): 1843399695
Livre de poche
Date de parution: 2007
Editeur: IWA Publishing
148 Pages
Poids: 0,349 kg
Langue: eng/Englisch

Livre dans la base de données depuis 2008-03-05T10:11:03+01:00 (Paris)
Page de détail modifiée en dernier sur 2020-05-14T12:21:21+02:00 (Paris)
ISBN/EAN: 9781843399698

ISBN - Autres types d'écriture:
1-84339-969-5, 978-1-84339-969-8
Autres types d'écriture et termes associés:
Auteur du livre: gautam, clifford still
Titre du livre: preservation arsenic species


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9781583214640 Preservation of Arsenic Species (Dennis Clifford, Gautam Samanta)


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