Reduction of Packed Mill-scale Bed by Solid Reducing Agents

Perchlorate Reduction In A Packed Bed Bioreactor Using Elemental Sulfur

This study investigated perchlorate reduction by sulfur utilizing perchlorate reducing bacteria (SUPeRB). SUPeRB cultures were enriched from a denitrifying wastewater inoculum in medium containing elemental sulfur (S), crushed oyster shell, nutrients and perchlorate. Perchlorate was reduced from 5 to < 0.5 mg/L in approximately 15 days. The enrichment culture was subsequently inoculated into a ...

Towards Large Scale Packed Bed Chromatography Simulations with OpenFOAM R ©

Column liquid chromatography (CLC) is a widely used unit operation in biotech and chemical process engineering for purification of target products (e.g. proteins for pharmaceutical agents) from unwanted substances. An aqueous solution containing the mixture of molecules is forced to flow through the chromatography column which is filled with porous particles (beads). While transport through the...

Evaluation of Strategies for Temperature and Moisture Control in Solid State Packed Bed Bioreactors

Different control strategies of bed temperature and moisture were investigated using various inlet air temperatures and air fluxes in both the ordinary packed bed bioreactor (without cooling water in the jacket) and the bioreactor with cooling water in jacket. The experiments were carried out within a 1-L solid-state packed bed bioreactor in which Aspergillus niger was cultivated on wheat bran....

Behavior of Packed Bed Thermal Storage

A packed bed thermal storage has several desirable characteristics to be used for energy storage. The behavior of packed bed is predicted by set of differential equations. A numerical solution is developed for packed bed storage tank accounting to the secondary phenomena of thermal losses and conduction effect. The effect of heat loss to surrounding (K1), conduction effect (K2) and air capacita...

Solution of Noncatalytic Packed Bed Reactors Equations by Finite Element Method