Characterization and equilibrium studies for the removal of methylene blue from aqueous solution using activated bone char

Abstract

The surface characteristics as well as adsorption potential of activated cow bone char for the removal of methylene blue (MB) from aqueous solution were investigated. Physical characteristics of the adsorbent revealed a large surface area, low pore volume, reduced ash and moisture contents, which have been identified as good adsorption characteristics. The surface of the adsorbent was predominated by mesopores with a few microporous structures as well as the presence of carbonates, phosphates, silicates and hydroxyl groups which are characteristic of the apatite phase. Adsorption efficiency for the removal of MB was observed to be influenced by pH, adsorbent dosage as well as initial dye concentrations. Equilibrium adsorption data was best described by the Freundlich isotherm with a good correlation coefficient suggesting multilayer adsorption of the dye molecules on the surface of the adsorbent. Based on the drive for reduced cost, removal efficiency and availability, activated carbon from cow bone could be a promising adsorbent for methylene blue-laden effluent that could be utilized in small and large industrial applications.

The Adsorption Performance and Characterization of Activated Charcoal of Bone Char Against Acid Orange 7

“…The results of the test analysis using XRD are shown in Figure4 (a). In this analysis, the hydroxyapatite content was confirmed by an X-ray diffractogram showing a strong peak at 33 0 In addition, the 2 Ɵ -axis peak between 25 0 and 60 0 also determined the presence of an apatite phase in the cow bone-activated charcoal material analyzed[26]. In general, the bone-activated charcoal diffraction pattern was close to the other bone-activated charcoal diffraction patterns obtained from pork and chicken bones[10,27].…”

Remediation of Heavy Metals from Galvanic Wastewater Using Cow Bone Char as Low Cost Adsorbent

“…Previous studies had reported the effective use of cow bone for wastewater remediation . Cow bone had been adopted for the removal of methylene blue from aqueous solution [17]. Adsorption of hexavalent chromium from aqueous solution using cow bone had also been reported [18].…”