| Abstrakt: |
In the present study, low-cost byproducts derived from forest biomass i.e. spruce sawdust, were employed to pack in two different sizes adsorption columns. Methylene Blue (basic dye) aqueous solution was tested in three lignocellulosic spruce states, (i) untreated, (ii) hydrolysed with brine, and (iii) acid aided hydrolysis in constant flow rate and desirable contact time, once through in up-flow direction. The operating capacity was calculated by regulating the linear velocity in the laboratory scale columns. The objective target was the determination of the dye removal by means of the pre-weighted packed biomass. The results indicated that spruce sawdust undergone brine pretreatment, achieved remarkable adsorption properties and therefore discoloration of the column effluents. The same outcome was noticed for acid aided hydrolysis which was more or less expected. Considering the abundance, low cost and mainly the easiness to get the acquired quantities of lignocellulosic material, it is concluded that spruce low-cost treatment could serve satisfactorily as a cost-effective adsorbent for basic dyes removal. [ABSTRACT FROM AUTHOR] |
