Results 241 to 250 of about 3,999,003 (278)

Lemongrass essential oil in sugarcane silage: Fermentative profile, losses, chemical composition, and aerobic stability

, 2020
Essential oils have been used to manipulate microbial growth in different processes such as silage fermentation. This study aimed to evaluate the effects of increasing levels of lemongrass oil (LO) in sugarcane ensiling on fermentative profile and losses,
Roberto Cantoia Júnior, E. Capucho, T. M. Garcia, T. A. Valle, M. Campana, E. Zilio, E. B. Azevedo, J. Morais   +7 more
semanticscholar   +1 more source

Physical structure of activated sludge in aerobic stabilization

Water Research, 1971
Abstract 1. (1) The physical structure of activated sludge flocs can be analysed and described to some extent by measuring the particle size and Thomas' α-value. 2. (2) During aerobic sludge stabilization both factors undergo changes which are paralleled by a reduction of organic matter within the flocs. 3.
G. Laubenberger, L. Hartmann
openaire   +1 more source

Aerobic stabilization of tannery sludge

2005
The wastewater coming from a tannery activity is often treated by biological treatment; the sludges produced by these processes are largely disposed off in landfill. The tannery sludge is currently a big ecological and environmental problem because of its high content of organic compounds and heavy metals, mainly Crome.
ALIBARDI, LUCA, COSSU, RAFFAELLO, LAVAGNOLO, MARIA CRISTINA   +2 more
openaire   +1 more source

Kinetic study of thermophilic aerobic stabilization of sludge

Biomass and Bioenergy, 1994
Abstract Thermophilic aerobic digestion of raw sludge was studied and optimized at bench scale. Experimental studies were conducted using two bench scale systems. The first was an insulated closed stainless-steel vessel of 21 volume. The second digestion system consisted of three closed stainless-steel vessels of 51 volume each.
S. Hawash, N. El Ibiari, F.H. Aly, G. El Diwani, M.A. Hamad   +4 more
openaire   +1 more source

Improving the quality of rice straw silage with Moringa oleifera leaves and propionic acid: Fermentation, nutrition, aerobic stability and microbial communities.

Bioresource Technology, 2019
Mixed ensiling is believed an effective way to improve nutrient preservation and utilization. The effect of mixing Moringa oleifera leaves (MOL) on silage quality, aerobic stability and microbial communities of rice straw ensiled with/without propionic ...
Liwen He, W. Zhou, Yaqi Xing, R. Pian, Xiaoyang Chen, Qing Zhang   +5 more
semanticscholar   +1 more source

Mathematical model of aerobic stabilization of old landfills

Chemical Papers, 2012
AbstractA short-term aerobic stabilization of digested waste in the final methane phase was studied. The effect of aeration rate on the reduction of leachate parameters and on the rate of CO2 production and O2 assimilation was investigated. Experimental simulation of aerobic landfill stabilization was carried out using lysimeters.
Radoslaw Slezak, Liliana Krzystek, Stanisław Ledakowicz   +2 more
openaire   +1 more source

Managing stability of aerobic granules by coordinating diameter and denitrification

Science of The Total Environment
Aerobic Granular Sludge (AGS) technology is a promising solution for wastewater treatment due to its structure and high biomass retention capacity. However, the stability of AGS is still a challenge for widespread use. This study investigated the relationships among granule stability, granule diameter, biomass retention capacity, and denitrification ...
Yong-Peng, Huang, Xin, Wang, Ruo-Lan, Wang, Jin-Tao, He, Yuan, Huang, Zhen-Yu, Hang, Xi, Chen, Zhi-Hua, Li   +7 more
openaire   +2 more sources

Microbiological Stabilization of Sludge by Aerobic Digestion and Storage

Journal of Environmental Engineering, 1993
A study is conducted to evaluate the pathogen and indicator bacterial reductions in the sludges of two wastewater‐treatment plants. These plants are extended‐aeration and oxidation‐ditch‐type plants that have no aerobic or anaerobic digestion facilities following the secondary treatment except for sludge‐storage facilities.
Rao Y. Surampalli, Shankha K. Banerji, J. C. Chen   +2 more
openaire   +1 more source

The Microflora Involved in Aerobic-Thermophilic Sludge Stabilization

Systematic and Applied Microbiology, 1989
Summary The microflora adapted to the habitat of aerobic-thermophilically treated sludge was investigated in a laboratory-scale fermenter as well as in plants working in practice. As demonstrated by the immunofluorescence technique, the dominant microflora of the laboratory model plant working under steady-state conditions largely corresponds to that
Reinhard Hensel, Wilhelm Demharter, Reinhold Hilpert   +2 more
openaire   +1 more source

Postural Stability in Aerobic Gymnastics Specific Positions

Sport Science Review, 2010
Postural 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
openaire   +1 more source