Journal ArticleDOI
A review of imperative technologies for wastewater treatment II: hybrid methods
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TLDR
In the first part of this two article series on the imperative technologies for wastewater treatment, a review of oxidation processes operating at ambient conditions was presented It has been observed that none of the methods can be used individually in wastewater treatment applications with good economics and high degree of energy efficiency Moreover, the knowledge required for the large-scale design and application is perhaps lacking as mentioned in this paper.About:
This article is published in Advances in Environmental Research.The article was published on 2004-03-01. It has received 898 citations till now. The article focuses on the topics: Wet oxidation.read more
Citations
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A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters.
TL;DR: Some novel pre-hydrolysed coagulants such as Polyaluminium chloride (PACl), Polyal aluminium ferric chloride (PAFCl), Polyferrous sulphate (PFS) and Polyferic chloride (PFCl) have been found to be more effective and suggested for decolourisation of the textile wastewater.
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A review on Fenton and improvements to the Fenton process for wastewater treatment
TL;DR: In this paper, the authors present a general review of advanced oxidation processes developed to decolorize and/or degrade organic pollutants and highlight the application of nano-zero valent iron in treating refractory compounds.
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Technologies for the removal of phenol from fluid streams: a short review of recent developments.
TL;DR: The available technologies for the abatement of phenol from water and gaseous streams are briefly reviewed, and the recent advancements summarized.
Journal ArticleDOI
Advanced Oxidation Processes for Wastewater Treatment: Formation of Hydroxyl Radical and Application
Jianlong Wang,Le Jin Xu +1 more
TL;DR: In this paper, the authors summarize the formation reactions of the hydroxyl radical (·OH) and the mechanisms of pollutants degradation in six types of advanced oxidation processes, including radiation, photolysis and photocatalysis, sonolysis, electrochemical oxidation technologies, Fenton based reactions, and ozone-based processes.
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Occurrence of emerging pollutants in urban wastewater and their removal through biological treatment followed by ozonation.
Roberto Rosal,Antonio Rodríguez,José Antonio Perdigón-Melón,Alice L. Petre,Eloy García-Calvo,María José Gómez,Ana Agüera,Amadeo R. Fernández-Alba +7 more
TL;DR: The results showed that paraxanthine, caffeine and acetaminophen were the main individual pollutants usually found in concentrations over 20 ppb, and the hydroxyl radical reaction was the major pathway for the oxidative transformation of these compounds.
References
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Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution
TL;DR: In this article, the rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes, and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods.
Journal Article
Critical review of rate condtants for reaction of hydrated electrons, hydrogen atoms and hydroxyl radicals in aqueous solution
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Photochemical processes for water treatment
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Rate Constants for Reactions of Inorganic Radicals in Aqueous Solution
TL;DR: In this article, rate constants have been compiled for reactions of various inorganic radicals produced by radiolysis or photolysis, as well as by other chemical means in aqueous solutions.
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A review of imperative technologies for wastewater treatment I: oxidation technologies at ambient conditions
TL;DR: In this article, the authors highlight five different oxidation processes operating at ambient conditions viz. cavitation, photocatalytic oxidation, Fenton's chemistry, ozonation, and use of hydrogen peroxide.