LAS homolog distribution shift during wastewater treatment and composting ecological implications

Journal Article · Wed Sep 01 00:00:00 EDT 1993 · Environmental Toxicology and Chemistry; (United States)

DOI:https://doi.org/10.1002/etc.5620120908· OSTI ID:5815812

Prats, D; Ruiz, F; Vazquez, B; Zarzo, D ^[1]; Berna, J L; Moreno, A ^[2]

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1. Univ. of Alicante (Spain). Div. Chemical Engineering
2. Petresa, Madrid (Spain)

The behavior of LAS (linear alkylbenzene sulfonate) in different environmental compartments was studied through wastewater treatment process steps in sewage treatment plants of Alicante and Benidorm (activated sludge type) as well as in Guardamar (lagoons). The fate of LAS, using a specific HPLC method, was monitored during treatment sludge compostage and soil amendment operations. Finally, the marine sediments close to a submarine wastewater sewer outfall were analyzed. The results show significant differences between distribution of LAS homologs in water and solids (sludges, sediments, and soils), as compared to the original distribution in detergent formulations, yielding a lower LAS average molecular weight in water samples. The change observed in the homolog distribution of LAS implies a reduction in the toxicity to Daphnia, because a lower average molecular weight of LAS is less toxic.

• OSTI ID: 5815812
• Journal Information: Environmental Toxicology and Chemistry; (United States), Vol. 12:9; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABS
MONITORING
TOXICITY
SOILS
CONTAMINATION
SPAIN
WATER POLLUTION
WASTE WATER
ACTIVATED SLUDGE PROCESS
COMPOSTING
DAPHNIA
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BRANCHIOPODS
CRUSTACEANS
DEVELOPING COUNTRIES
ESTERS
EUROPE
HYDROGEN COMPOUNDS
INVERTEBRATES
LIQUID WASTES
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
SULFONIC ACID ESTERS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
WESTERN EUROPE
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology