Biodegradation Mechanisms of Linear Alcohol Ethoxylates under Anaerobic Conditions

Huber, Martin; Meyer, Ulrich; Rys, Paul

doi:10.1021/es9903680

Cited by 62 publications

(33 citation statements)

References 14 publications

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“…However, the primary attack on the ether bond is very unlikely with anaerobic bacteria. Anaerobic biodegradation of AE starts with the cleaving of the terminal EO unit, releasing acetaldehyde stepwise, and shortening of the ethoxy chain until the lipophilic moiety is obtained (91).…”

Section: Ape Ae and Aesmentioning

confidence: 99%

Surfactants in the Environment

Ivanković

Hrenović

2010

Archives of Industrial Hygiene and Toxicology

336

190

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Surfactants in the EnvironmentSurfactants are a diverse group of chemicals that are best known for their wide use in detergents and other cleaning products. After use, residual surfactants are discharged into sewage systems or directly into surface waters, and most of them end up dispersed in different environmental compartments such as soil, water or sediment. The toxic effects of surfactants on various aquatic organisms are well known. In general, surfactants are present in the environment at levels below toxicity and in Croatia below the national limit. Most surfactants are readily biodegradable and their amount is greatly reduced with secondary treatment in wastewater treatment plants. The highest concern is the release of untreated wastewater or wastewater that has undergone primary treatment alone. The discharge of wastewater polluted with massive quantities of surfactants could have serious effects on the ecosystem. Future studies of surfactant toxicities and biodegradation are necessary to withdraw highly toxic and non-biodegradable compounds from commercial use and replace them with more environmentally friendly ones.

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Section: Ape Ae and Aesmentioning

confidence: 99%

Surfactants in the Environment

Ivanković

Hrenović

2010

Archives of Industrial Hygiene and Toxicology

336

190

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“…Recently, Huber et al (2000) used solid phase extraction (SPE) and derivatisation techniques in conjunction with HPLC to study the anaerobic biodegradation mechanisms of linear alcohol ethoxylates. Later Adrian and Chow (2001) used HPLC to confirm the loss of hexahydro-1,3,5-trinitro-1,3,5-triazine, and LC-MS to identify the transient intermediates during anaerobic biodegradation.…”

Section: Analysis Of Substrate Consumption or Product Formationmentioning

confidence: 99%

Equipment used for testing anaerobic biodegradability and activity

Guwy

2004

Rev Environ Sci Biotechnol

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Recently there has been a growing demand for information on the biodegradability and microbial toxicity of xenobiotic compounds. The environmental fate and effect of these chemicals in aerobic and anaerobic conditions has been extensively studied using a variety of different methods. This paper reviews the different protocols, equipment and instruments used in anaerobic biodegradation and activity tests, including the more sophisticated automated techniques recently developed. The different systems for detecting biogas production are given particular attention. As well as gasometric methods, the different instrumental techniques used to follow the fate of compounds under anaerobic conditions, via analysis of substrate consumption and product formation are evaluated.

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“…Therefore, research directed toward surfactant degradation techniques have been actively pursued. For example, the degradation of anionic surfactants 34 and nonionic surfactants 35 using anaerobic bacteria as a biochemical processing method has been reported; however, a very long processing time is needed. Methods for easy and prompt decomposition of surfactants are a necessity for environmental protection.…”

Section: Surfactant Degradation By Microwave Methodsmentioning

confidence: 99%