Journal ArticleDOI
A rapid colorimetric method for measuring arsenic concentrations in groundwater
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TLDR
In this paper, an optimization of the colorimetric method of Johnson and Pilson (1972) to accurately measure As concentrations in the <0.03 −5.3mol L −1 (<2 −400 gL −1 ) range in groundwater containing 2 −30mol l −1 dissolved phosphate was reported.About:
This article is published in Analytica Chimica Acta.The article was published on 2004-11-22. It has received 267 citations till now. The article focuses on the topics: Ascorbic acid & Arsenic.read more
Citations
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Journal ArticleDOI
The molybdenum blue reaction for the determination of orthophosphate revisited: Opening the black box.
TL;DR: This review aims to rationalise the findings of the many 'optimised' molybdenum blue methods in the literature in terms of the underlying polyoxometallate chemistry and offers suggestions for the further enhancement of this time-honoured analytical reaction.
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Effects of water chemistry on arsenic removal from drinking water by electrocoagulation.
TL;DR: Electrocoagulation was highly effective at removing arsenic from drinking water in field trials conducted in a village in Eastern India and by using operation times long enough to produce sufficient iron oxide for removal of both phosphate and arsenate, the performance of the systems in fields was not inhibited by high phosphate concentrations.
Journal ArticleDOI
Sorption of arsenic(V) and arsenic(III) to schwertmannite.
Edward D Burton,Richard T Bush,Scott G Johnston,Kim M Watling,Rosalie K. Hocking,Leigh A Sullivan,Gretel K Parker +6 more
TL;DR: The results of this study have important implications for arsenic mobility in the presence of schwertmannite, such as in areas affected by acid-mine drainage and acid-sulfate soils, and arsenic speciation, arsenic loading, and pH should be considered when predicting and managing arsenic Mobility in schwERTmannite-rich systems.
Journal ArticleDOI
pH-Dependent reactivity of oxidants formed by iron and copper-catalyzed decomposition of hydrogen peroxide.
TL;DR: To identify the reactive species in the Fenton system, the oxidation of a series of different compounds was studied for iron- and copper-catalyzed reactions at varying pH values, with evidence suggesting the production of hydroxyl radical or high-valent metal species.
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Synergetic Transformations of Multiple Pollutants Driven by Cr(VI)–Sulfite Reactions
TL;DR: In this escalated process, less sulfite was required to reduce Cr(VI) than the traditional Cr( VI) reduction by sulfite process, alleviating the potential for SO2 release and sulfate ion production in water.
References
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Journal ArticleDOI
A modified single solution method for the determination of phosphate in natural waters
J. Murphy,J.P. Riley +1 more
TL;DR: In this article, a single solution reagent was described for the determination of phosphorus in sea water, which consists of an acidified solution of ammonium molybdate containing ascorbic acid and a small amount of antimony.
Journal ArticleDOI
A review of the source, behaviour and distribution of arsenic in natural waters
TL;DR: The scale of the problem in terms of population exposed to high As concentrations is greatest in the Bengal Basin with more than 40 million people drinking water containing ‘excessive’ As as mentioned in this paper.
Journal ArticleDOI
Contamination of drinking-water by arsenic in Bangladesh: a public health emergency
TL;DR: The experience in Bangladesh shows that groundwater sources throughout the world that are used for drinking-water should be tested for arsenic, and the fundamental intervention is the identification and provision of arsenic-free drinking water.
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