A review of agricultural waste activated carbon and effect on adsorption parameters

Activated carbon is widely used in industrial wastewater treatment operation because of the effectiveness in removing the dye. As the conventional activated carbon on market nowadays is expensive, lots of research was done on agricultural materials to replace the activated carbon. Sugarcane bagasse is listed as one of the agricultural material alternatives. This review compiles the characterisation of sugarcane bagasse and several agricultural wastes-based activated carbon including proximate analysis, ultimate analysis, and activated carbon surface characteristic used to remove dye in textile wastewater. Nevertheless, the adsorption parameters are the main focus as it affecting the removal of dye. The expansion review regarding activated carbon performance implies that dye removal efficiency depends on the amount of adsorbent dosage, contact time, pH solution, dye concentration applied during the adsorption process. This review shows the need of thoughtful information on adsorption parameters with an expanded list of various types of agricultural-based activated carbon and various dye removal

Removal of heavy metals in textile wastewater by Ca-Alginate beads immobilized activated carbon

Discharged of textile wastewater creates serious environmental problems. This paper investigates the ability of low-cost adsorbent to remove heavy metals present in the textile effluents. The Ca-alginate beads immobilized modified activated carbon (MACB) are considered as the potential adsorbent. Zinc (Zn) and Iron (Fe) present in the textile wastewater are considered as heavy metals pollutants. Batch adsorption studies are carried out to determine the heavy metals sorption capacity of MACB. The significant removal of Zn and Fe are 78% and 77%, respectively. Therefore, the low-cost adsorbent is determined to be cost-effective and efficient adsorbents in order to remove heavy metal pollutant from textile wastewater