Removal of alcohol ethoxylates, alkyl ethoxylate sulfates, and linear alkylbenzene sulfonates in wastewater treatment

1998 ◽  
Vol 17 (9) ◽  
pp. 1705-1711 ◽  
Author(s):  
Drew C. McAvoy ◽  
Scott D. Dyer ◽  
Nicholas J. Fendinger ◽  
William S. Eckhoff ◽  
David L. Lawrence ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Alcohol Ethoxylates ◽  
Linear Alkylbenzene ◽  
Linear Alkylbenzene Sulfonates

Acetate uptake efficiency of polyphosphate-accumulating organisms under exposure to surfactants

2009 ◽  
Vol 60 (11) ◽  
pp. 2775-2780
Author(s):  
K. Tsuji ◽  
M. Fujita ◽  
H. Furumai
Keyword(s):  
Municipal Wastewater ◽  
Batch Reactor ◽  
Alcohol Ethoxylates ◽  
Anaerobic Conditions ◽  
Linear Alkylbenzene ◽  
Acetate Uptake ◽  
Batch Tests ◽  
Linear Alkylbenzene Sulfonates ◽  
Negative Impacts ◽  
Polyphosphate Accumulating Organisms

We investigated the influence of surfactants such as linear alkylbenzene sulfonates (LAS) and alcohol ethoxylates (AE) on acetate uptake by polyphosphate-accumulating organisms (PAOs) under anaerobic conditions, using the phosphate requirement for acetate uptake (+ΔP/−ΔAc ratio). In order to estimate the +ΔP/−ΔAc ratio, anaerobic batch tests were conducted using activated sludge collected from an anaerobic/oxic sequencing batch reactor used to treat municipal wastewater continuously supplemented with a detergent containing LAS and AE. We demonstrated that LAS and AE have both positive and negative impacts on acetate uptake by PAOs. The disadvantage is that long-term exposure to the detergent inhibits acetate uptake by PAOs, thus deteriorating the efficiency, even if the surfactants are no longer present during the tests. Furthermore, the existence of LAS and/or AE with acetate further diminishes the efficiency. The advantage is that LAS and AE are potential sources of polyhydroxyalkanoate for PAOs, because acetate is produced from the surfactants under anaerobic conditions.

Anaerobic Degradation Pathway of Linear Alkylbenzene Sulfonates (LAS) in Sulfate-Reducing Marine Sediments

2010 ◽  
Vol 44 (5) ◽  
pp. 1670-1676 ◽  
Author(s):  
Pablo A. Lara-Martín ◽  
Abelardo Gómez-Parra ◽  
José Luis Sanz ◽  
Eduardo González-Mazo
Keyword(s):  
Marine Sediments ◽  
Anaerobic Degradation ◽  
Degradation Pathway ◽  
Linear Alkylbenzene ◽  
Sulfate Reducing ◽  
Linear Alkylbenzene Sulfonates

Fate and Distribution of Linear Alkylbenzene Sulfonates in the Littoral Environment

1998 ◽  
Vol 32 (11) ◽  
pp. 1636-1641 ◽  
Author(s):  
Eduardo González-Mazo ◽  
Jesus María Forja ◽  
Abelardo Gómez-Parra
Keyword(s):  
Linear Alkylbenzene ◽  
Linear Alkylbenzene Sulfonates

Trace Determination of Linear Alkylbenzene Sulfonates

2011 ◽  
pp. 11-22
Author(s):  
Caroline Sablayrolles ◽  
Mireille Montréjaud-Vignoles ◽  
Jérôme Silvestre ◽  
Michel Treilhou
Keyword(s):  
Trace Determination ◽  
Linear Alkylbenzene ◽  
Linear Alkylbenzene Sulfonates

Linear Alkylbenzene Sulfonates and Intermediate Products from their Degradation are not Estrogenic

1999 ◽  
Vol 38 (10) ◽  
pp. 880-884 ◽  
Author(s):  
JosÉ MarÍa Navas ◽  
Eduardo GonzÁlez-Mazo ◽  
Andrea Wenzel ◽  
Abelardo GÓmez-Parra ◽  
Helmut Segner
Keyword(s):  
Linear Alkylbenzene ◽  
Intermediate Products ◽  
Linear Alkylbenzene Sulfonates
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