Abstract In this study, the purification effect of red mud–loess mixture (RM–L) as a reactive medium in permeable barrier (PRB) for groundwater contaminated by acidic wastewater (AW) containing Mn(II) was explored considering removal capacity and pH value, safety on RM–L after evaluated. The breakthrough parameters were determined purifying performances toward AW evaluated fixed-bed column test...

This work expands upon previous on a moving bed cryogenic carbon capture (CCC). Cryogenic using fixed packed captures CO2 frost deposited the surface of material; this build-up fouls heat transfer column and requires periodic shut down process to regenerate material collect for further storage. Using continuously removes frosted from preventing excessive eliminating need regeneration step withi...

Global environmental pollution challenges can be alleviated if proper disposal and conversion of wastes is promoted. An attempt of converting waste to wealth was made in this study by converting oil palm empty fruits bunch to activated carbon through chemical activation with potassium hydroxide which was used for adsorption of Rhodamine B dye from waste water. Fixed-bed column adsorption system...

A procedure for rapid isolation of monosialogangliosides from purified bovine brain gangliosides has been developed. It utilizes the selective difference in association between monosialogangliosides and polysialogangliosides for the ion-exchange resin Q-Sepharose. When the ion-exchange column is overloaded with a bovine brain ganglioside mixture in the proper ganglioside to column bed-volume ra...

drying properties of high moisture potato slices with initial moisture content of about 4.06 (db) under thin layer fixed, semi fluidized and fluidized bed conditions were studied. drying air temperatures of 40, 50, 60 and 70°c were applied in experiments using a laboratory fluidized bed convective dryer. in order to predict the drying behavior of potato slices, seven thin layer drying models we...

Crab shell particles were tested for its ability to remove Zn 2+ ions from aqueous solution and were evaluated in a batch reactor and in a fixed-bed column. The binding of Zn 2+ ions by crab shell was found to be affected significantly by pH, with maximum sorption capacity 71.46 mg/g observed at pH 4.5. The sorption isotherm of Zn 2+ ions on crab shell particles was modeled on the application o...

As part of the development of equipment and innovative technology for the process flow-sheet, a study on the selection of good resin for uranium uptake is ongoing. Both static and dynamic column equilibrium testing upon synthetic and Gattar pregnant leach solutions (PLS) were carried out to estimate the change of total capacity and breakthrough capacity of the commercial macroporous anion excha...

The experimentally investigation for dehydration of gas streams in a fixed-bed adsorption column using 4A molecular sieve was reported the first time. Different operating conditions system were performed, such as flow rate (2.0, 5.0 and 8.0 L min.-1) bed depths (10, 20 30 cm). A significantly decreased (p ≤ 0.05) exhaustion time verified result increase rate. On other hand, rupture mass transfe...