in this study , response surface methodology and face central composite design in order to investigate decolorization and clarification extraction of kaluteh date was used for the production of liquid sugar. the optimum amount of bentonite ( 1-3 g/l ) and gelatin ( 0/02-0/08 g/l ) was determined that the desired amount of bentonite and gelatin , 3 and 0/05 ( g/l ) , respectively. to determined ...

With the aim to determine influence of dominant interlayer cation on sorption and diffusion properties bentonite, experiments with Sr compacted homoionous Ca- Na-forms Czech natural Mg/Ca bentonite using planar source method were performed. The was 1400 kg·m−3, lasted 1, 3 or 5 days. Two methods apparent coefficient Da determination based analytical solution equation for ideal boundary conditio...

Stability of respiratory syncytial virus was determined in a new bentonite holding medium and compared with two other commonly used media. Eventual infectivity titers were similar with all three preparations.

in this experiment, fermentation parameters of a tmr ration determined with different levels of phosalone as an organophosphate pesticide (0, 100, 250, 500, 750 and 1000 ppm) and bentonite (0, 1 and 2 %dm of tmr) using in vitro batch culture and gas production techniques. the results from gas production showed that cumulative gas production for 96h after incubation significantly decreased with ...

Bentonite has been modified using H2SO4 at various concentrations to alter the Si/Al ratio that is responsible for catalytic pyrolysis of waste polyethylene. The XRF analysis confirmed a gradual decrease Al2O3 content with an increasing concentration H2SO4. highest liquid hydrocarbon yield (87.48 %) was obtained 34.24. To further activate acid-modified bentonite, bimetals (Cu/Ni, Fe/Ni, and Co/...

This study investigates the feasibility of using coal fly ash and fly ash-bentonite mixtures as a barrier material for mine waste. The hydraulic conductivity of the coal fly ash was measured to be in the order of 2 x 10 -9 m/s when it was permeated with deionized water, and this value decreased significantly when the permeant was switched to acid mine drainage (AMD). Addition of bentonite to co...

Surfactant-modified minerals have been widely used for the sorption of anionic and non-polar organic contaminants. This paper investigates the regeneration of various hexadecyltrimethylammoniun bromide (HDTMA)-modified natural minerals saturated with chromate anions using different solutions for the extraction of chromate that has been sorbed at optimum conditions. The examined minerals include...

BACKGROUND AND OBJECTIVES Biofilms are structural communities of bacterial cells enshrined in a self produced polymeric matrix. The studies on biofilm formation of Pasteurella multocida have become imperative since it is a respiratory pathogen and its biofilm mode could possibly be one of its virulence factors for survival inside a host. The present study describes a biofilm assay for P. multoc...