Results 201 to 210 of about 78,806 (255)
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Aerobic Sludge Stabilization—Factors Affecting Kinetics
Journal of Environmental Engineering, 1989The effects of temperature, pH, sludge age in the prior activated sludge process, initial sludge solids concentration, and sludge type on the rate of solids degradation during aerobic sludge stabilization are discussed. Primary sludge (PS), waste activated sludge (WAS), and mixed primary and waste activated sludges (PS/WAS) are stabilized.
Rajagopal Krishnamoorthy +1 more
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Aerobic and Anaerobic Landfill Stabilization Process
Journal of the Sanitary Engineering Division, 1970A series of laboratory investigations was performed to replicate the aerobic and anaerobic sanitary landfill environment. The oxygen demand of solid waste was found to be directly proportional to the amount of easily utilizable organics present in the test material.
Ralph Stone, Rishab K. Gupta
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Postural Stability in Aerobic Gymnastics Specific Positions
Sport Science Review, 2010Postural Stability in Aerobic Gymnastics Specific Positions The study compares the effect of maximal jumps and sport-specific exercises on parameters of balance. Two balance elements (free support vertical split and frontal split) were analyzed in a group of 8 aerobic gymnasts (average age = 17,0 ± 1,3 years, average body height = 163,0 ± 6,9 ...
Oľga Kyselovičová, Erika Zemková
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Respirometric assessment of aerobic sludge stabilization
Bioresource Technology, 2010Aerobic sludge stabilization was assessed respirometrically with the sludge taken from the secondary settling tank of a domestic wastewater treatment facility in Istanbul, Turkey. Zero-order removal rates of 178, 127 and 44 mg/L day were found for Suspended Solids (SS), Volatile Suspended Solids (VSS) and Total Organic Carbon (TOC) at the end of 18 ...
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Effect of Rotifers on the Stability of Aerobic Granules
Environmental Technology, 2007The current study evaluated the effect of rotifers on the stability of aerobic granules. Two sequence batch reactors (SBRs) with airflow rates of 4 (R1) and 6 (R2) 1 min(-1), respectively, were used to develop aerobic granules. Granules were well developed with excellent settleability in terms of SVI30 (sludge volume index,) of about 50 ml g(-1) in ...
Z H, Li, T, Kuba, T, Kusuda, X C, Wang
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Stability of aerobic granules during long-term bioreactor operation
Biotechnology Advances, 2018Aerobic granular sludge technology has been extensively studied over the past 20 years and is regarded as the upcoming new standard for biological treatment of domestic and industrial wastewaters. Aerobic granules (AG) are dense, compact, self-immobilized microbial aggregates that allow better sludge-water separation and thereby higher biomass ...
Rita D.G. Franca +3 more
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Localization and stability of hydrogenases from aerobic hydrogen bacteria
Archives of Microbiology, 1977Alcaligenes eutrophus strains H 16, B 19, G 27 and N9A contained two different hydrogenases. One enzyme catalyzed the reduction of NAD by hydrogen and was strictly localized in the soluble cell fraction. While the second enzyme was found to be particulate and unable to react with NAD.
Schneider, K.A., Schlegel, H.G.
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Effects of Corn Silage Inoculants on Aerobic Stability
2002 Chicago, IL July 28-31, 2002, 2002Aerobic stability of corn silage can be a major problem for farmers particularly in warm weather. Silage inoculants, while the most common type of silage additive, have not been effective at improving aerobic stability. This study investigated new and proposed inoculant products over three years on corn silage in mini-silos.
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Enhanced storage stability of aerobic granules seeded with pellets
Bioresource Technology, 2010The responses of two different types of aerobic granules to storage, granule A seeded with activated sludge flocs and granule B seeded with pellets (cells), were investigated in this study. After 3-week storage, the surface of granule B remained compact and smooth while obvious crevices were observed on that of granule A.
Hua-Cheng, Xu +4 more
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Methods for measuring the degree of stability of aerobic stabilized sludges
Water Research, 1977Abstract This study was conducted to find one or several parameters that can be used as a measure of the degree of stability of wastewater sludges and to define in terms of the measured parameters what is meant by a fully stabilized sludge. Based on the data from this study, the following requirements regarding odour should be met before an ...
A.S. Eikum, B. Paulsrud
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