Chemical Oxidation Applications for Industrial Wastewaters by Tunay, Olcay

By Tunay, Olcay

This ebook covers the latest clinical and technological advancements (state-of-the-art) within the box of chemical oxidation approaches acceptable for the effective therapy of biologically-difficult-to-degrade, poisonous and/or recalcitrant effluents originating from diverse production approaches. it's a finished evaluation of technique and pollutants profiles in addition to traditional, complicated and emerging Read more...

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This e-book covers the newest clinical and technological advancements (state-of-the-art) within the box of chemical oxidation techniques appropriate for the effective remedy of Read more...

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Concerns currently focus on alkyl phenol ethoxylates (APEO) and in particular nonyl phenol ethoxylates (NPE) due to their endocrine disrupting behaviour. The main alternatives for APEO are fatty alcohol ethoxylates, but also for other surfactant types (anionic, cationic ones) substitutes are often available that are more biodegradable/bioamenable in the wastewater treatment plant and/or do not form toxic metabolites. Sequestering agents: These are used in textile preparation and dyeing stages. They can often be avoided.

26, 944–951. Pignatello, J. J. and Huang, L. Q. (1993) Degradation of polychlorinated dibenzo-p-dioxin and dibenzofuran contaminants in 2,4,5-T by photoassisted iron-catalyzed hydrogen peroxide. Water Res. 27, 1731–1736. Prousek, J. (1996) Advanced oxidation processes for water treatment. Chemical processes. Chem. Listy. 90, 229–237. G. F. (1994) Ozone Chemistry Applied to Cooling Tower Water Treatment. In Chemical Oxidation Technologies for the Nineties (eds. W. R. A. , Lancaster, United States.

35) Similar to O3, H2O2 reacts with organic pollutants present in water through direct and indirect pathways. Indirect reactions are due to the oxidising action of free radicals formed during photolytic or chemically/catalytically induced H2O2 decomposition. Although, H2O2 is a relatively strong oxidising agent and being used to oxidise aldehydes, alcohols, amines, azobenzene, phenols, cyanides, Introduction to redox reactions 17 the reduced sulphur compounds, and metal ions, however, ultimate mineralisation of recalcitrant organic compounds and/or toxicity removal cannot be achieved by mere H2O2 oxidation.

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