Degradation photoinduced by Fe(III): Method of alkylphenol ethoxylates removal in water

Article Abstract:

Alkylphenol ethoxylates can be degraded through photoinduction within an aqueous solution with Fe(III) to facilitate the removal of the products from aquatic environments. The biodegradation phase of wastewater treatment operations is known to transform alkylphenol ethoxylates into more toxic compounds. The irradiated solution does not exhibit the presence of compounds possessing an aromatic ring on either alkylphenol ethoxylate with octylphenol or short alkyl chain. Alkylphenol ethoxylates have been employed as emulsifiers, detergents, wetting and dispersing agents in agricultural and industrial products and household applications for over 40 years.

United States, Science & research, All Other Miscellaneous Waste Management Services, Environmental Control NEC, Environmental management, Article

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Aromatic compound degradation in water using a combination of sonolysis and ozonolysis

Article Abstract:

A combination of sonolysis and ozonolysis has been found to be effective in degrading aromatic compounds in water at both 20 khz and 500 khz. Sonolysis and Ozonolysis alone have been proven to be selective catalysts in degrading the nitrobenzene, 4-nitrophenol and 4-chlorophenol in water. A hybrid process combining the two was able to enhance the total organic carbon reduction rates for all three compounds with observable intermediate product formation.

Nitrated Aromatics, Control, Water pollution, Aromatic compounds, Nitroaromatic compounds

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Degradation photoinduced by Fe(III): method of alkylphenol ethoxylates removal in water

Article Abstract:

Iron(III) photoinduced degradation of alkylphenol ethoxylates (APE) in water is found to be feasible with enormous possibilities in environmental management. Iron(III) degradation of a major fraction of ethoxymers has been found to occur efficiently under sunlight and at 365nm. The system basically involves hydrogen abstraction of one carbon of the ethoxy chain and the products include aldehyde ethoxylates, formate ethoxylates and octylphenol.

Industrial Organic Chemicals, Alkylphenols, Environmental aspects, Iron compounds, Alkylates, Alkylates (Petroleum derivatives)

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