Biodegradation of technical mixtures of oxyethylenated aliphatic alcohols in an aqueous environment

Řezníčková, I.; Hoffmann, Jaromír; Komárek, Karel

doi:10.1016/s0045-6535(02)00039-5

Cited by 13 publications

(3 citation statements)

References 5 publications

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“…Biodegradation processes can be more efficient for analytes with shorter alkyl and/or ethoxylated chains. In this process fatty acids and polyethylene glycols (PEG: slower biodegradation with production of carboxylic acids) can be formed as a consequence of central cleavage of molecule and undergo ω -oxidation and later α , β -oxidation reaction of the alkyl chain [39, 40]. Branched compounds from the group of AEO are characterized by slower degradation and it involves ω -oxidation and successive α , β -oxidation reactions of the alkyl chain [24].…”

Section: Emission Pollutants Into the Environment And Their Fatementioning

confidence: 99%

Occurrence of Surface Active Agents in the Environment

Olkowska

Ruman

Polkowska

2014

Journal of Analytical Methods in Chemistry

104

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Due to the specific structure of surfactants molecules they are applied in different areas of human activity (industry, household). After using and discharging from wastewater treatment plants as effluent stream, surface active agents (SAAs) are emitted to various elements of the environment (atmosphere, waters, and solid phases), where they can undergo numerous physic-chemical processes (e.g., sorption, degradation) and freely migrate. Additionally, SAAs present in the environment can be accumulated in living organisms (bioaccumulation), what can have a negative effect on biotic elements of ecosystems (e.g., toxicity, disturbance of endocrine equilibrium). They also cause increaseing solubility of organic pollutants in aqueous phase, their migration, and accumulation in different environmental compartments. Moreover, surfactants found in aerosols can affect formation and development of clouds, which is associated with cooling effect in the atmosphere and climate changes. The environmental fate of SAAs is still unknown and recognition of this problem will contribute to protection of living organisms as well as preservation of quality and balance of various ecosystems. This work contains basic information about surfactants and overview of pollution of different ecosystems caused by them (their classification and properties, areas of use, their presence, and behavior in the environment).

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Section: Emission Pollutants Into the Environment And Their Fatementioning

confidence: 99%

Occurrence of Surface Active Agents in the Environment

Olkowska

Ruman

Polkowska

2014

Journal of Analytical Methods in Chemistry

104

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“…Before being mineralized, large surfactant molecules need to be broken down into smaller fragments. This process is generally called "primary biodegradation" [25,26]. Primary biodegradation mainly contribute to the increase in biomass, whereas ultimately biodegradation essentially serves to maintain the bacterial growth.…”

Section: Biodegradation Of Surfactantsmentioning

confidence: 99%

“…For secondary linear alcohol ethoxylates, a significant resistance to degradation was demonstrated on increasing the ethoxylate chain length [25]. Additionally, the hydrophilic part of a surfactant molecule is the dominant proportion of degradative scission [17,26]. The effects of molecular structure on the biodegradability of surfactants have been reported elsewhere in literature [28].…”

Section: Biodegradation Of Surfactantsmentioning

confidence: 99%