Results 11 to 20 of about 38,723 (173)

High-rate dark fermentative hydrogen production in a UASB reactor with granular activated carbon and Clostridium pasteurianum bioaugmentation [PDF]

Frontiers in Microbiology
The combined application of granular activated carbon (GAC) and Clostridium pasteurianum bioaugmentation was evaluated in an up-flow anaerobic sludge blanket (UASB) reactor for high-rate dark fermentative hydrogen production under progressively shortened
Eunjin Kim, Gi-Beom Kim, Yerim Lee, Eunseo Cho, Sandhya Sompura, Jiho Jeon, Sang-Hyoun Kim, Ju-Hyeong Jung   +7 more
doaj   +2 more sources

In dubio pro lector. Ambigüedad narrativa y duda razonable en el relato “En un bosque” de Ryunosuke Akutagawa

Foro, Revista de Derecho, 2020
Entre otros, hay dos recursos narrativos para la construcción retórica de la ambigüedad narrativa; el “narrador no fiable” y el “narratario”. Este artículo estudia la especificidad combinada de los dos procedimientos en el cuento “En un bosque” (1921 ...
Leonardo Valencia
doaj   +1 more source

Treatment of domestic wastewater in an up-flow anaerobic sludge blanket reactor followed by moving bed biofilm reactor [PDF]

, 2009
The performance of a laboratory-scale sewage treatment system composed of an up-flow anaerobic sludge blanket (UASB) reactor and a moving bed biofilm reactor (MBBR) at a temperature of (22-35 A degrees C) was evaluated.
Temmink, B.G., El-Gohary, F., Tawfik, A., F. El-Gohary, A. Tawfik, H. Temmink   +5 more
core   +1 more source

Enhancement of overloaded waste stabilization ponds using different pretreatment technologies: a comparative study from Namibia

Journal of Water Reuse and Desalination, 2020
Waste stabilization ponds (WSP) are a well-established wastewater treatment technology in Namibia. However, they are often overloaded and we still lack concepts and technologies for improvement.
Jochen Sinn, Susanne Lackner
doaj   +1 more source

Anaerobic Treatment of Concentrated Black Water in UASB Reactor at a Short HRT [PDF]

, 2010
This research describes the feasibility of applying a UASB reactor for the treatment of concentrated black (toilet) water at 25 °C. On average 78% of the influent load of COD at an HRT of 8.7 days was removed. Produced methane can be converted to 56 MJ/p/
Temmink, B.G., Zeeman, G., Graaff, M.S., de, Buisman, C.J.N., Hardy Temmink, Cees J. N. Buisman, Grietje Zeeman, Marthe S. De Graaff   +7 more
core   +1 more source

Estimativa de recuperação de energia renovável a partir do biogás em edifícios residenciais: análise de viabilidade econômica [PDF]

Revista DAE
O aumento da demanda de energia associado às mudanças climáticas tem dificultado o desenvolvimento sustentável. Este artigo buscou avaliar o potencial de recuperação de biogás para geração de energia elétrica, a partir de estações compactas de ...
Taísa Andrade Barbosa, Daniel Moureira Fontes Lima   +1 more
doaj   +1 more source

Bioaugmentation of UASB reactors with immobilized Sulfurospirillum barnesii for simultaneous selenate and nitrate removal [PDF]

, 2009
Whole-cell immobilization of selenate-respiring Sulfurospirillum barnesii in polyacrylamide gels was investigated to allow the treatment of selenate contaminated (790¿µg Se¿×¿L-1) synthetic wastewater with a high molar excess of nitrate (1,500 times) and
Lenz, M., O’Flaherty, V., Aelst, A.C., van, Enright, A.M., Lens, P.N.L., Markus Lenz, Adriaan C. van Aelst, Lenz, Markus, Lens, Piet N. L., Vincent O’Flaherty, Piet N. L. Lens, Enright, Anne Marie, O’Flaherty, Vincent, Anne Marie Enright, van Aelst, Adriaan C.   +14 more
core   +1 more source

Use of spray nozzles to recover dissolved methane from an Upflow Anaerobic Sludge Blanket (UASB) reactor effluent

Water Science and Technology, 2022
Methane is a powerful greenhouse gas and a source of energy. Recovering this gas means lower greenhouse gas emission and potential reduction of energetic costs.
C. M. Q. Santos, C. Ditchfield, G. Tommaso, R. Ribeiro   +3 more
doaj   +1 more source

Domestic Wastewater Treatment: A Comparison between an Integrated Hybrid UASB-IFAS System and a Conventional UASB-AS System

, 2021
The current study presents a detailed evaluation and comparison between two integrated anaerobic–aerobic systems for biological wastewater treatment under equal conditions in all aspects (wastewater characteristics, climatic conditions, reactor sizing ...
Ibrahim Hendy, Ayman M. Dohdoh, Ahmed Abdo, Martina Zelenakova   +3 more
core   +1 more source

La plurinacionalidad desde abajo: autogobierno indígena en Bolivia y Ecuador

Estado & Comunes, 2020
Este libro visibiliza el testimonio de los actores de la implementación de las autonomías indígenas en Bolivia y el autogobierno en Ecuador. Se analizan casos emblemáticos que grafican  los avances, estancamientos y retos plurinacionales hacia el ...
Elizabeth Huanca Coila
doaj   +1 more source