Results 11 to 20 of about 21,861 (219)

Treatment of Preserved Wastewater with UASB [PDF]

open access: yesMATEC Web of Conferences, 2016
The preserved wastewater was treated by the upflow anaerobic sludge blanket (UASB) reactor, the effects of the anaerobic time on COD, turbidity, pH, conductivity, SS, absorbance, and decolorization rate of the preserved wastewater were investigated.
Zhang Yongli   +3 more
core   +4 more sources

Granulation in UASB Reactors

open access: yesWater Science and Technology, 1986
The state of knowledge on the microbiological aspects of granular methanogenic sludge in upflow anaerobic sludge blanket (UASB) reactors is reviewed. Granular methanogenic sludge has been observed in a variety of upflow reactors, which is in agreement with the hypothesis that these systems select for well settling sludges. In methanogenic UASB reactors
J. Dolfing
openaire   +2 more sources

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

open access: yesSustainability, 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, and even the measurement methods).
Ayman M. Dohdoh   +3 more
openaire   +2 more sources

Granulation in UASB-Reactors

open access: yesWater Science and Technology, 1983
The influence of the sludge loading rate, the addition of a small amount of granular sludge to the seed sludge and the effect of the NH4+- and Ca2+-concentration in the influent on the pelletization-process of anaerobic methanogenic sludge in UASB-reactors were studied. Two different types of sludge granules can be obtained with VFA's as feed-solution.
Hulshoff Pol, L.W.   +3 more
openaire   +3 more sources

Modeling and Analysis of a UASB Reactor

open access: yes, 2012
Validerat; 20120217 (ysko)
Parsamehr, Mohammad
openaire   +2 more sources

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

open access: yesForo, 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

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

open access: yesRevista 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   +1 more
doaj   +1 more source

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

open access: yesJournal 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 digestion and the denitrification in UASB reactor

open access: yesJournal of Urban and Environmental Engineering, 2008
The environmental conditions in Brazil have been contributing to the development of anaerobic systems in the treatment of wastewaters, especially UASB - Upflow Anaerobic Sludge Blanket reactors. The classic biological process for removal of nutrients uses three reactors - Bardenpho System, therefore, this work intends an alternative system, where the ...
José Tavares de Sousa   +4 more
openaire   +3 more sources

Comparison of three types of anaerobic granular sludge for treating pharmaceutical wastewater

open access: yesJournal of Water Reuse and Desalination, 2018
Three types of anaerobic granular sludge for treating chemical synthesis-based pharmaceutical wastewater were compared: (1) an up-flow anaerobic sludge blanket (UASB) filled with polyvinyl alcohol (PVA) gel beads (UASB-PVA); (2) a UASB filled with ...
Yibo Wang   +4 more
doaj   +1 more source

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