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Water Sci Technol

Title:		Development of compact UASB/trickling filter systems for treating domestic wastewater in small communities in Brazil
Author(s):		De Almeida PG; Chernicharo CA; Souza CL;
Address:		"Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil"
Journal Title:		Water Sci Technol
Year:		2009
Volume:		59
Issue:		7
Page Number:		1431 - 1439
DOI:		10.2166/wst.2009.094
ISSN/ISBN:		0273-1223 (Print) 0273-1223 (Linking)
Abstract:		"The paper analyses the concept and performance of compact UASB/TF systems in relation to configuration, use of innovative packing media and operational conditions. For the conditions tested, the UASB/TF systems had consistently complied with the Brazilian discharge standard regarding to COD, BOD and TSS parameters. However, some enhancements are still necessary in order to increase nitrification in the process. The conditions to promote nitrification in shallow TF (packed bed up to 2.50 m height) seem to be compatible with the proposed simplification in the flowsheet, which is to operate the system without secondary clarifiers"
Keywords:		"Brazil Volatile Organic Compounds/isolation & purification Waste Disposal, Fluid/*instrumentation/methods Water Purification/instrumentation/methods;"
Notes:		"MedlineDe Almeida, P G S Chernicharo, C A L Souza, C L eng Research Support, Non-U.S. Gov't England 2009/04/22 Water Sci Technol. 2009; 59(7):1431-9. doi: 10.2166/wst.2009.094"