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J Hazard Mater

Title:		Toxicity identification evaluation of cosmetics industry wastewater
Author(s):		de Melo ED; Mounteer AH; Leao LH; Bahia RC; Campos IM;
Address:		"Department of Civil Engineering, Federal University of Vicosa, Vicosa, Minas Gerais, CEP 36570-000, Brazil. elisa.d.melo@ufv.br"
Journal Title:		J Hazard Mater
Year:		2013
Volume:		20121201
Issue:
Page Number:		329 - 334
DOI:		10.1016/j.jhazmat.2012.11.051
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"The cosmetics industry has shown steady growth in many developing countries over the past several years, yet little research exists on toxicity of wastewaters it generates. This study describes a toxicity identification evaluation conducted on wastewater from a small Brazilian hair care products manufacturing plant. Physicochemical and ecotoxicological analyses of three wastewater treatment plant inlet and outlet samples collected over a six month period revealed inefficient operation of the treatment system and thus treated wastewater organic matter, suspended solids and surfactants contents consistently exceeded discharge limits. Treated wastewater also presented high acute toxicity to Daphnia similis and chronic toxicity to Ceriodaphnia dubia and Pseudokirchneriella subcapitata. This toxicity was associated with suspended solids, volatile or sublatable and non-polar to moderately polar organic compounds that could be recovered in filtration and aeration residues. Seven surfactants used in the largest quantities in the production process were highly toxic to P. subcapitata and D. similis. These results indicated that surfactants, important production raw materials, are a probable source of toxicity, although other possible sources, such as fragrances, should not be discarded. Improved treatment plant operational control may reduce toxicity and lower impact of wastewater discharge to receiving waters"
Keywords:		"Animals Biological Oxygen Demand Analysis Chlorophyta/*drug effects Daphnia/*drug effects Hair Preparations/*toxicity Industrial Waste Waste Disposal, Fluid Wastewater/*toxicity Water Pollutants, Chemical/*toxicity;"
Notes:		"Medlinede Melo, Elisa Dias Mounteer, Ann H Leao, Lucas Henrique de Souza Bahia, Renata Cibele Barros Campos, Izabella Maria Ferreira eng Research Support, Non-U.S. Gov't Netherlands 2012/12/29 J Hazard Mater. 2013 Jan 15; 244-245:329-34. doi: 10.1016/j.jhazmat.2012.11.051. Epub 2012 Dec 1"