Results 41 to 50 of about 15,082 (272)

Review of Upflow Anaerobic Sludge Blanket Reactor Technology: Effect of Different Parameters and Developments for Domestic Wastewater Treatment

open access: yesJournal of Chemistry, 2018
The upflow anaerobic sludge blanket (UASB) reactor has been recognized as an important wastewater treatment technology among anaerobic treatment methods.
M. K. Daud   +6 more
doaj   +1 more source

Safety and Effectiveness of Struvite from Black Water and Urine as a Phosphorus Fertilizer [PDF]

open access: yes, 2011
To ensure food supply, phosphorus must be recycled, for which an appealing method is using struvite fertilizer from human excreta. One struvite from black water and another from urine were assessed for safety under Dutch regulations, and for ...
Gell, K.   +4 more
core   +2 more sources

Cobalt toxicity in anaerobic granular sludge: influence of chemical speciation [PDF]

open access: yes, 2008
The influence of cobalt speciation on the toxicity of cobalt to methylotrophic methanogenesis in anaerobic granular sludge was investigated. The cobalt speciation was studied with three different media that contained varying concentrations of complexing ...
Baldo-Urrutia, A.M.   +4 more
core   +2 more sources

Forecasting wind speed data by using a combination of ARIMA model with single exponential smoothing [PDF]

open access: yes, 2021
Wind serves as natural resources as the solution to minimize global warming and has been commonly used to produce electricity. Because of their uncontrollable wind characteristics, wind speed forecasting is considered one of the best challenges in ...
A. Rahman, Nur H.   +5 more
core   +1 more source

Thermophilic anaerobic digestion of methanol in UASB reactor

open access: yesWater Science and Technology, 2001
A 5.1 L laboratory scale upflow anaerobic sludge bed (UASB) reactor was operated at 55°C over 130 days in order to investigate the feasibility of treating methanol-containing wastewater under thermophilic conditions, focussing on start-up and process stability.
Paulo, P.L.   +4 more
openaire   +3 more sources

UASB-reactor in the fruit juice industry

open access: yesWater Science and Technology, 1997
This paper presents experiences with a full scale UASB-reactor in a fruit juice factory. The focus is on demonstrating that a UASB-reactor is as suitable for campaign industries running only 2 months a year with higher concentrated wastewater as well as for the time outside the campaign when the wastewater concentrations are very low (average COD 1000 ...
Karl-Heinz Rosenwinkel   +2 more
openaire   +2 more sources

Factors affecting students participation in extra-curricular [PDF]

open access: yes, 2014
Extracurricular activity is a complementary of the requirement and interest in the student academic development. Extracurricular learning styles can be implemented in the form of informal where it can provide effective learning experiences to the ...
A. Aziz, N. A., Fan, L., Jayasuria, N.
core   +1 more source

Quantitative Detection of Syntrophic Fatty Acid-degrading Bacterial Communities in Methanogenic Environments [PDF]

open access: yes, 2015
In methanogenic habitats, volatile fatty acids (VFA), such as propionate and butyrate, are major intermediates in organic matter degradation. VFA are further metabolized to H2, acetate and CO2 by syntrophic fatty acid-degrading bacteria (SFAB) in ...
Maki, James   +2 more
core   +2 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
openaire   +1 more source

Developing a multi-criteria decision support system based on fuzzy analytical hierarchical process (AHP) method for selection of appropriate high-strength wastewater treatment plant [PDF]

open access: yesAdvances in Environmental Technology, 2019
The selection of an optimum treatment process for high-strength wastewater is complicated. Familiarity with wastewater treatment methods is not enough to design a plant and requires a multidisciplinary knowledge base.
Amin Hedayati Moghaddam, Jalal Shayegan
doaj   +1 more source

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