Results 21 to 30 of about 71,923 (248)

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

Technogenic Coal Formations – Promising Raw Materials for Improvement of Mining and Processing Enterprises Energy Independence [PDF]

open access: yesE3S Web of Conferences, 2020
There are coal-processing products (coal sludge, screening, dust, coke dust and fines) and organic waste (excess activated sludge, waste from water treatment plants) suggests using to produce energy gaseous in the paper.
Ushakov Andrey   +3 more
doaj   +1 more source

Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability [PDF]

open access: yes, 2006
In order to enhance the efficiency of anaerobic digestion, the effects of ultrasounds, ozonation and thermal pre-treatment have been studied on waste activated sludge.
Alfonso   +51 more
core   +2 more sources

Hydrodynamic Cavitation of Waste-Activated Sludge

open access: yesEnvironmental Engineering Science, 2018
Abstract Hydrodynamic cavitation systems have shown considerable promise for wastewater treatment. These systems are also used as a sludge pretreatment device to increase treatment efficiency of anaerobic sludge digestion systems. Although there are some literature related to disintegration of waste-activated sludge by hydrodynamic cavitation, effects ...
Sagban, Fatma Olcay Topac   +3 more
openaire   +3 more sources

CO-conditioning and dewatering of chemical sludge and waste activated sludge [PDF]

open access: yesWater Research, 2001
The conditioning and dewatering behaviors of chemical and waste activated sludges from a tannery were studied. Capillary suction time (CST), specific resistance to filtration (SRF), and bound water content were used to evaluate the sludge dewatering behaviors. Zeta potentials were also measured. Experiments were conducted on each sludge conditioned and
Chang, G. R., Liu, J. C., Lee, D. J.
openaire   +3 more sources

Seeking to enhance the bioenergy of municipal sludge: Effect of alkali pre-treatment and soluble organic matter supplementation [PDF]

open access: yes, 2017
The aim of this research is to enhance the mesophilic anaerobic digestion of municipal sludge from Cadiz-San Fernando (Spain) wastewater treatment plant at 20 days hydraulic retention time (HRT).
Pérez García, Montserrat   +3 more
core   +1 more source

"Isolation and Identification of Bacteria Present in the Activated Sludge Unit, in the Treatment of Industrial Waste Water " [PDF]

open access: yesIranian Journal of Public Health, 2001
Activated sludge or extended aeration treatment involves a continous system where aerobic biological growths are mixed with waste water and then separated in a gravity clarifier.
MK Sharifi-Yazdi1   +2 more
doaj   +1 more source

Statistically-Based Comparison of the Removal Efficiencies and Resilience Capacities between Conventional and Natural Wastewater Treatment Systems: A Peak Load Scenario [PDF]

open access: yes, 2018
Emerging global threats, such as climate change, urbanization and water depletion, are driving forces for finding a feasible substitute for low cost-effective conventional activated sludge (AS) technology. On the other hand, given their low cost and easy
Charalambous, Panayiotis   +5 more
core   +3 more sources

Hydrolase Production via Food Waste Fermentation and Its Application to Enhance Anaerobic Digestion of Sewage Sludge

open access: yesFermentation, 2023
In the present study, a novel strategy for the effective production of hydrolase via fermentation of food waste was developed to improve methane production from anaerobic digestion of waste activated sludge (WAS).
Xuedong Zhang   +7 more
doaj   +1 more source

Effect of process parameters on the energy requirement in ultrasonical treatment of waste sludge [PDF]

open access: yes, 2009
Mechanical treatment methods are used as pre-treatment methods in order to enhance the efficiency of conventional sludge treatment processes and the sludge becomes more suitable for its complete treatment.
Akin   +23 more
core   +2 more sources

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