−A packed bed external loop airlift bioreactor (PBELAB) was proposed as an alternative treatment system for wastewater containing ammonia and nitrate compounds. The 60L PBELAB consisted of aeration and non-aeration zones, both of which were packed with plastic bioballs to enhance the surface area for the attachment of bacteria. The system was able to achieve complete removal of all nitrogen com...

Continuous fermentations were carried out with a recombinant flocculent Saccharomyces cerevisiae strain in an airlift bioreactor. Once operating under steady state at a dilution rate of 0.45 h(-1), the bioreactor was contaminated with Escherichia coli cells. The faster growing E. coli strain was washed out of the bioreactor and the recombinant, slower growing flocculating S. cerevisiae strain r...

the steps taken in designing a loop reactor for bulk propylene polymerization are discussed. the roles played by several parameters like particle growth factor, catalyst activity and solid fraction on reactor volume at different operating conditions are investigated. at first, based on a fixed production capacity and specific rate of catalyst, reactor volume is determined. next, the length and ...

The paper gives a short historical overview of the types aircraft representing airlift capabilities in certain periods life Hungarian Defence Forces and pays tribute to air ground operations personnel. Describing military transport be developed within framework Zrínyi Military Development Program, reader will gain insight into ever evolving he nature complex tasks resulting from participation A...

This paper investigates the self-cleansing performance of an airlift pump with a U-bend. For this purpose, experimental setup is used to assess effect air flow on pump's ability lift water and remove particles under different submergence ratios particle concentrations. In addition, simple yet accurate fluid mechanical model interpret experiments individual predict critical velocity required for...

This paper presents the results of a study on use an airlift pump in aquaponics, model that has been applied and developed for organic food production. Airlift pumps, which are commonly used mining industry pumping liquids such as water oil, have recently adopted aquaponics systems. Airlifts offer several advantages over other types including simple compact design with no moving parts, making t...