Results 11 to 20 of about 60,416 (217)
Air entrainment and pressure drop in low-cost ejectors [PDF]
Anais da Academia Brasileira de Ciências, 2020 This study investigated experimentally the air entrainment and pressure drop in low-cost ejectors composed of two pieces shaped from PVC bars inserted in a 25 mm T-junction of the same material.
DANIEL D. LIMA, IRAN E. LIMA NETO
doaj +1 more source
Production of highly porous glass-ceramics from metallurgical slag, fly ash and waste glass [PDF]
Acta Periodica Technologica, 2004 Glass-ceramics composites were produced based on fly-ash obtained from coal power stations, metallurgical slag from ferronickel industry and waste glass from TV monitors, windows and flasks. Using 50% waste flask glass in combination with fly ash and 20%
Mangutova Bianka V. +3 more
doaj +1 more source
Foods, 2022 The use of wild yeasts, isolated from different environments, is becoming the most interesting option for the production of new beers. The objective of this study is to evaluate the potential of seven non-conventional yeast strains from five different ...
Vanesa Postigo +3 more
doaj +1 more source
Revista Brasileira de Engenharia Agrícola e Ambiental, 2010 Na confecção deste trabalho se utilizou a metodologia de superfície de resposta para otimizar o efeito do número de Reynolds, tempo de floculação e concentração de hipoclorito de sódio sobre a oxidação/floculação do ferro presente em águas subterrâneas ...
Jeferson S. Piccin +5 more
doaj +1 more source
Research Progress of Treatment of Black and Odorous Water Bodies with Aeration Technology
Renmin Zhujiang, 2022 When treating black and odorous water bodies,the current aeration technology is faced with problems such as unscientific aeration design,unreasonable design of parameters such as aeration volume,aeration time,and influence radius,and unclear mechanism of
WU Zuojingtong +3 more
doaj
Zootechnical and growth performance of tambaqui (Colossoma macropomum) under different productive models of intensification [PDF]
Brazilian Journal of BiologyThe objective of this study was to evaluate the zootechnical performance of tambaqui (Colossoma macropomum) for fattening (> 2 kg) under three management strategies on nine fish farms, which were equally distributed as follows: Low Productive Efficiency (
C. A. S. Lima +6 more
doaj +1 more source
Technological processing waste water using the dressing the ejector system for pretreament [PDF]
Tehnika, 2017 Slaughter industry produces large amounts of waste water, which endanger and degrade the natural recipients - recipients, given that the waste vode najčešće discharged without any form of treatment or purification.
Božović Milan +2 more
doaj +1 more source
Removal of radionuclides from Estonian groundwater using aeration, oxidation, and filtration; pp. 58–64 [PDF]
Proceedings of the Estonian Academy of Sciences, 2012 Groundwater in the north-eastern suburb of Tallinn was analysed to determine the content of iron, manganese, sulphides, ammonia, and radionuclides (Ra226, Ra228) and total radioactivity. It was established that for several wells of the CambrianâVendian
Liie Lumiste +4 more
doaj +1 more source
Airflow resistance of wheat bedding as influenced by the filling method
Research in Agricultural Engineering, 2008 A study was conducted to estimate the degree of variability of the airflow resistance in wheat caused by the filling method, compaction of the sample, and airflow direction.
J. Łukaszuk +4 more
doaj +1 more source
Frontiers in MicrobiologyAeration is an important factor to regulate composting efficiency and nitrogen loss. This study is aimed to compare the effects of different aeration modes (continuous and intermittent) and aeration rate on nitrogen conversion and bacterial community in ...
Yuyun Wang +21 more
doaj +1 more source