Removal of Lead and Cobalt from Pharmaceutical Effluent: Efficiency of Activated Coconut Shell and Commercial Activated Carbon

Mohammed, U M; Binta, M; Mustapha, Sherif Ishola; Idris, Mohd Nazri

doi:10.9734/acsj/2016/22558

Cited by 2 publications

(2 citation statements)

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“…As reported in Table 3, the following; 0.51 g/cm 3 , 614.7 mg/g, 570 m 2 /g, 26.4% were obtained as the values of bulk density, iodine number, surface area and porosity for activated carbon prepared from Velvet Tamarind shells. The values of bulk density, surface area, and iodine number were similar to the values obtained by [24,26] produced activated carbon from palm kernel shell and obtained yields of bulk density of 0.5048g/cm 3 BET surface area. Bulk density is the weight per unit volume of dry carbon in a packed bed and is 80-85% of the apparent density [27].…”

Section: Proximate and Ultimate Analysis Of Activated Carbons From Vesupporting

confidence: 83%

Adsorption Performance of Packed Bed Column for the Removal of Lead (II) Using Velvet Tamarind (Dialium indum) Shells

Akoji

2019

AJACR

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The removal of Pb ions by activated carbons prepared from velvet tamarind (Dialium indum) shells was studied to investigate its uptake potentials using column sorption at different operating conditions (flow rates, initial concentrations and bed height). The prepared adsorbent was characterized by determining the physicochemical properties, proximate analysis, carbon, Hydrogen, Nitrogen and Sulpur analysis, Fourier Transform-Infra Red, Potentiometric titration. Different dynamic models were used to describe the sorption processes. The FTIR analysis results suggested the presence of functional groups such as hydroxyl, carbonyl, carboxyl and amine which could bind the metals and remove them from the solution. The values of moisture content, volatile matter, fixed carbon and ash content as obtained from % proximate analysis are 3.43, 27.07, 65.05, 4.45 for activated carbons prepared from velvet tamarind shells. Ultimate analysis revealed that activated carbons prepared from velvet tamarind shells contained 75% carbon. The surface area and Iodine number of activated carbon from velvet tamarind shell are 570 m2g-1 and 614.7 mgg-1 respectively. The column experimental data revealed that an increase in bed height and initial metal concentration or a decrease of flow rate enhances the longevity of column performance by increasing both breakthrough time and exhaustion time thereby delaying bed saturation. Low ash content and high surface areas are indication of good mechanical strength and microporosity of the activated carbons prepared from this precursor. The activated carbons are inexpensive and appeared to be effective and can be explore for future commercial application for environmental sustainability.

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Section: Proximate and Ultimate Analysis Of Activated Carbons From Vesupporting

confidence: 83%

Adsorption Performance of Packed Bed Column for the Removal of Lead (II) Using Velvet Tamarind (Dialium indum) Shells

Akoji

2019

AJACR

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“…This increased the removal efficiency from 54% to 99.65%. Kakavandi et al [237] studied the chemical modification of granular activated carbon (GAC) with sodium dodecyl sulfate (SDS), which yielded modified GAC (MGAC). It worked as an excellent adsorbent for removing Co(II) ions from aqueous solutions.…”

Section: Mechanism Of Enhancing Adsorption Performancementioning

confidence: 99%

A Critical Review of the Removal of Radionuclides from Wastewater Employing Activated Carbon as an Adsorbent

2022

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Radionuclide-contaminated water is carcinogenic and poses numerous severe health risks and environmental dangers. The activated carbon (AC)-based adsorption technique has great potential for treating radionuclide-contaminated water due to its simple design, high efficiency, wide pH range, quickness, low cost and environmental friendliness. This critical review first provides a brief overview of the concerned radionuclides with their associated health hazards as well as different removal techniques and their efficacy of removing them. Following this overview, this study summarizes the surface characteristics and adsorption capabilities of AC derived from different biomass precursors. It compares the adsorption performance of AC to other adsorbents, such as zeolite, graphene, carbon nano-tubes and metal–organic frameworks. Furthermore, this study highlights the different factors that influence the physical characteristics of AC and adsorption capacity, including contact time, solution pH, initial concentration of radionuclides, the initial dosage of the adsorbent, and adsorption temperature. The theoretical models of adsorption isotherm and kinetics, along with their fitting parameter values for AC/radionuclide pairs, are also reviewed. Finally, the modification procedures of pristine AC, factors determining AC characteristics and the impact of modifying agents on the adsorption ability of AC are elucidated in this study; therefore, further research and development can be promoted for designing a highly efficient and practical adsorption-based radionuclide removal system.

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Removal of Lead and Cobalt from Pharmaceutical Effluent: Efficiency of Activated Coconut Shell and Commercial Activated Carbon

Cited by 2 publications

References 0 publications

Adsorption Performance of Packed Bed Column for the Removal of Lead (II) Using Velvet Tamarind (Dialium indum) Shells

Adsorption Performance of Packed Bed Column for the Removal of Lead (II) Using Velvet Tamarind (Dialium indum) Shells

A Critical Review of the Removal of Radionuclides from Wastewater Employing Activated Carbon as an Adsorbent

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