LAS homolog distribution shift during wastewater treatment and composting ecological implications

Journal Article · Wed Sep 01 04:00:00 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), Journal Name: Environmental Toxicology and Chemistry; (United States) Vol. 12:9; ISSN ETOCDK; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

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