Results 31 to 40 of about 13,726 (202)

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

Métodos analíticos no controle microbiológico da água para consumo humano Analithical methods for water microbiological control for human consumtion

Ciência e Agrotecnologia, 2006
A fim de realizar a quantificação de coliformes totais e fecais no decorrer das etapas de tratamento da água captada pela Companhia de Saneamento do Paraná (SANEPAR) Curitiba-PR, foram utilizadas três técnicas de análise microbiológica: (1) a técnica ...
Janine Maria Pereira Ramos Bettega, Maria Rosa Machado, Mayra Presibella, Grazielle Baniski, Carlos de Almeida Barbosa   +4 more
doaj   +1 more source

Bacteriological examination of the water and sediments in Palhi and Salog rivers in Western Leyte, Philippines

Annals of Tropical Research, 2022
Rivers around the world are threatened by destruction caused by anthropogenic activities despite the important services they provide for humanity. This study was conducted to determine the water classification and recommended beneficial uses of Palhi ...
Rufina Mae C. Lumagbas, Jayzon G. Bitacura   +1 more
doaj   +1 more source

Validity of fecal coliforms, total coliforms, and fecal streptococci as indicators of viruses in chlorinated primary sewage effluents [PDF]

Applied and Environmental Microbiology, 1978
Quantities of combined chlorine that usually destroyed more than 99.999% of the indigenous fecal coliforms, total coliforms, and fecal streptococci in primary sewage effluents destroyed only 85 to 99% of the indigenous viruses present. Viruses were recovered from five of eight chlorinated primary effluents from which fecal coliforms were not recovered ...
G, Berg, D R, Dahling, G A, Brown, D, Berman   +3 more
openaire   +2 more sources

Development of a sustainable water treatment process using biochar as substrate for filtration and coliform removal

The Canadian Journal of Chemical Engineering, EarlyView.
Preparation, modification, and characterization of biochar from woodchips and its application in stream water filtration, evaluated through physicochemical and microbiological analyses. Abstract Global microbial water contamination affects 1.8 billion people, necessitating efficient and sustainable treatment methods.
Tariq Khalil, Muhammad Ishtiaq Ali, Rameesha Abid, Anab Mujtaba, Rabia Asghar, Asif Jamal, Yusuf Tutar, Ahsan Habib, Fakhraddin Yusubov   +8 more
wiley   +1 more source

Food Contamination and Safety in Nigeria: A Systematic Synthesis of Heavy Metals, Microbial Pathogens, and Health Risk Metrics

Food Safety and Health, EarlyView.
This is an infographic driver of food contaminants and health effects. ABSTRACT Food safety remains a critical challenge in Nigeria due to rapid urbanization and weak regulatory enforcement. This systematic review synthesizes empirical evidence from 2015 to 2025 to characterize food contaminant profiles and associated human health risks in Nigeria ...
Cecilia Nwadiuto Obasi, Naomi A. Mogborukor, Baridoo Donatus Dooka, Polycarp Dauda Madaki, Chiara Frazzoli, Mohamed Haddad, Orish Ebere Orisakwe   +6 more
wiley   +1 more source

The impact of bacterial contamination of the ejaculate and extender on the quality of swine semen doses

Semina: Ciências Agrárias, 2017
The aim of this study was to verify the influence of the degree of bacterial contamination of boar ejaculate and semen extender on the quality of semen doses.
Ana Maria Groehs Goldberg, Marisa Cardoso, Mari Lourdes Bernardi, Ivo Wentz, Fernando Pandolfo Bortolozzo   +4 more
doaj   +3 more sources

Comparison of Verification Procedures for the Membrane Filter Total Coliform Technique [PDF]

Applied and Environmental Microbiology, 1983
Verification of membrane filter total coliform colonies from drinking water was increased 87% by testing for the presence of β-galactosidase and cytochrome oxidase, compared with verification by determination of gas production in lauryl tryptose broth.
M W, LeChevallier, S C, Cameron, G A, McFeters   +2 more
openaire   +2 more sources

Antimicrobial Sensitivity Profile and Resistance Gene Research in Escherichia coli Isolated From Water and Fish From Lagoa da Conceição, Florianópolis, SC, Brazil

Food Safety and Health, EarlyView.
This paper highlights a concerning scenario of environmental contamination by multidrug‐resistant bacteria, underscoring the need for integrated surveillance and control strategies to address antimicrobial resistance in aquatic environments within the context of One Health.
Francisco Lucas de Amorim Nascimento, Luan Amaral Alexandre, Cynthia Farias Manassi, Alice Cristina da Silva, Luísa Aimée Schmitt Lobe, Gustavo Rocha, Mateus Rocha Ribas, Victor Wolleck, Gabriele Caroline Gottschalk de Abreu, Alessandra Valéria Vortmann, Sheila Mello da Silveira, Rodrigo Barcellos Hoff, Jussara Kasuko Palmeiro, Silvani Verruck   +13 more
wiley   +1 more source

Biofilm formation in surface and drinking water distribution systems in Mafikeng, South Africa

South African Journal of Science, 2014
Poor quality source water and poorly treated reused wastewater may result in poor quality drinking water that has a higher potential to form biofilms. A biofilm is a group of microorganisms which adhere to a surface. We investigated biofilm growth in the
Suma George Mulamattathil, Carlos Bezuidenhout, Moses Mbewe   +2 more
doaj   +1 more source