Results 21 to 30 of about 178,624 (294)
ACS Sustainable Chemistry and Engineering, 2021 Persulfates ((peroxymonosulfate (PMS) and peroxydisulfate (PDS)) can disintegrate waste activated sludge (WAS), but their influence on volatile fatty acid (VFA) production during anaerobic fermentation is largely unclear.
Wei Fang +3 more
semanticscholar +1 more source
Enzyme activity of waste activated sludge extracts
Water Science and Technology, 2019 AbstractWastewater treatment and generated biological sludge provide an alternative source of enzymes to conventional industrial production methods. Here, we present a protocol for extracting enzymes from activated sludge using ultrasonication and surfactant treatment.
Liu, Z, Smith, SR
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Lime Stabilization of Waste Activated Sludge [PDF]
Health Scope, 2014 Background: Sewage sludge (Biosolids) is a byproduct of wastewater treatment that accumulates in large quantities. Effective stabilization and disinfection of sewage sludge prior to land application are necessary to not only protect human health, but also to induce the public its benefits and safety.
Mahdi Farzadkia, Edris Bazrafshan
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Reaktor, 2017 Steady-state behavior of activated sludge in phenolic waste water treatment was observed and theoretically considered. The apparatus used in this experiment was a continuous perfect mixing tank where activated sludge was withdraw continuosly and auto ...
B. T. Basuki
doaj +1 more source
Pathogenic micro-organisms in waste waters from daiies
Czech Journal of Food Sciences, 2000 Waste waters from dairies were tested for the presence of bacterial pathogens - Listeria monocytogenes, Staphylococcus aureus and Salmonella spp. The prevalence of bacteria was investigated in each stage of the cleaning process (activated sludges systems)
P. Navrátilová
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Methanosarcinaceae and acetate-oxidizing pathways dominate in high-rate thermophilic anaerobic digestion of waste-activated sludge [PDF]
, 2013 This study investigated the process of high-rate, high-temperature methanogenesis to enable very-high-volume loading during anaerobic digestion of waste-activated sludge.
Amann +54 more
core +1 more source
Forecasting wind speed data by using a combination of ARIMA model with single exponential smoothing [PDF]
, 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
Hydrodynamic Cavitation of Waste-Activated Sludge
Environmental 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]
Water 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.
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Technogenic Coal Formations – Promising Raw Materials for Improvement of Mining and Processing Enterprises Energy Independence [PDF]
E3S 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