This research demonstrates the applicability of parallel computing to Air Mobility Command’s aircraft allocation problem. The Tanker Airlift Control Center (TACC) is responsible for worldwide tasking of DoD airlift in a manner that is robust against random future events. Our work seeks to improve this process using a parallel stochastic mathematical program that allocates aircraft to various mi...

This study presented the performance of simultaneous nitrification and denitrification (SND) process using a new developed hybrid airlift reactor which integrated the activated sludge reaction process in the airlift reactor and the sludge settling separation process in the clarifier. The proposed reactor was started up successfully after 76 days within which the COD and total nitrogen removal r...

The use of organic liquids as vectors to enhance mass transfer has been applied since the 1970s. However, mass transfer in three-phase reactors is only partially understood. This paper aimed to characterize oxygen transfer in three-phase reactors containing air as gas, silicone oil as vector andwater as aqueous phase. Amass transfermodel that considers separately air/vector, vector/water and ai...

steady state and dynamic fermentations of baker's yeast in molasses based media were analyzed in a laboratory scale bioreactor. sugar and biomass balances together with the monod biokinetics were used to develop the process model. parameters of the model were obtained using collected experimental data. model predicted open loop responses to step changes in feed concentration as well as dilution...

We investigated the regeneration of two Bulgarian sweet pepper cultivars (‘Hebar’ and ‘Stryama’) on solid and liquid culture medium. Liquid cultures were incubated in temporary immersion RITA ® airlift bioreactors. During a period of 60 days, culture in the liquid medium was associated with significantly increased shoot tip growth, number of lateral shoots, percentage of rooted plants and micro...

Limited available water resources have rendered wastewater reuse an important issue to specialists in most developed countries, today. The current study works on membrane filtration for treatment of industrial wastewater. By comparing the two methods of membrane bioreactor (MBR) and hybrid membrane electro bioreactor (MEBR) processes, it finds that earlier fouling in the membrane occurs in the ...