Characterization of tannery sludge activated carbon and its utilization in the removal of azo reactive dye

Geethakarthi, A.; Phanikumar, B. R.

doi:10.1007/s11356-011-0608-z

Cited by 35 publications

(11 citation statements)

References 12 publications

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“…It shows that pH PZC is approximately 5.0 for both the samples, which means at pH > 5.0 the activated carbons would have predominantly a negative charge at the surface while below this value the surface is positively charged. Typically, the pH at the point of zero charges on activated carbon is approximately 7 [33,34]. However, this was not observed from the AC samples prepared in the present study.…”

Section: Resultsmentioning

confidence: 54%

Valorization of Toxic Weed Lantana camara L. Biomass for Adsorptive Removal of Lead

Saini

Suthar

Karmveer

et al. 2017

Journal of Chemistry

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Valorization of Lantana camara L., which is a recognized invasive plant, as a potential source of activated carbon is proposed in this study. Its stem and leaf have been utilized for the preparation of activated carbon (ACL and ACS) by following acid-impregnation technique, followed by thermal treatment. The developed activated carbon samples were characterized for their structural and surface related properties by low-temperature nitrogen adsorption isotherm, SEM techniques, and pHPZC method. The samples show reasonable high surface area and pore volume; nonetheless, these properties are higher in case of ACL as compraed to ACS. Both of these samples developed negative charge on their surface due to acid treatment that resulted in an increase in adsorption at pH > 5. The batch adsorption studies on these samples shows the Pb(II) ion adsorption capacities of ACL and ACS were 36.01 and 32.24 mg·g−1, respectively, at 25°C. The kinetics of adsorption with both the sample systems follow the pseudo-second-order model, whereas the experimental equilibrium isotherm data of ACL and ACS were explained by Freundlich and Langmuir models, respectively. For these samples, the HCl shows maximum desorption with which the recycling test on these samples shows that ACS has better recycling potential over ACL samples.

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Section: Resultsmentioning

confidence: 54%

Valorization of Toxic Weed Lantana camara L. Biomass for Adsorptive Removal of Lead

Saini

Suthar

Karmveer

et al. 2017

Journal of Chemistry

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“…1b. The efficiency of the adsorbent in the removal of reactive dyes in favoring adsorption process is discussed in the previous studies (Geethakarthi & Phanikumar, 2012).…”

Section: Sem Analysismentioning

confidence: 99%

Characterization of Acid Impregnated Activated Carbon Developed from Tannery Sludge

Alagarsamy¹

2021

EREM

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The sludge discharged from the preliminary treatment of a tannery effluent plant is considered for the development of activated carbon. The carbon is developed by impregnating the precursor in an acid activating agent (H2SO4). The activation of the preliminary sludge is carried under different operating conditions such as varying temperature (600–800oC) and acid impregnation ratios (1 and 2) for two different particle sizes such as 600 µm and 300 µm. A carbon content of 74% was obtained from the sludge activated at a temperature of 650oC for 3 hrs with particle size 300 µm (3S-52). The characterization of developed tannery sludge carbon 3S-52 was carried out using Scanning Electron Microscopy (SEM) and Brunauer–Emmett–Teller (BET) isotherm plots to analyze the surface morphology and pore size distribution, pore volume and pore diameter. The nitrogen physisorption for surface analysis and pore size distribution was also done at −196oC (77K). The pore volume, pore size and the surface area of 3S-52 were determined as 0.133cm3/g, 5.15 Ao and 212.32 m2/g respectively. These results demonstrated feasibility to treat the tannery sludge as a precursor to produce microporous activated carbons

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“…By characterized the performance of these oil using thermogravimetric and GC/MS, the chemical components of these obtained oil products was similar to biodiese [141]. For the preparation of adsorbents, Geethakkarthi et al [142] prepared activated carbon from tannery sludge by a combination of physical and chemical activation, which was applied in removal of azo reactive dyes. The achieved adsorbent had a high BET surface area (188.25 m 2 /g) and strong binding ability to the anionic azo dyes [142].…”

Section: Preparation Of Oil and Adsorbentmentioning

confidence: 99%

Research progress on resource utilization of leather solid waste

Guo

Lü

et al. 2019

J Leather Sci Eng

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Leather making is the process of converting raw hides into leather. Amounts of solid waste containing hazardous and high value components are generated during this process. Therefore, the elimination of the potential pollution and resource utilization of leather solid waste are the primary research hotspots. Herein, we comprehensively review the recent advances in the resource utilization of leather solid waste generated from chrome tanning including the utilization of tannery hair waste, untanned solid waste, chrome-containing leather solid waste, tannery sludge and finished leather waste, emphasizing on the general and novel utilization approaches. Finally, the remaining challenges and perspectives were summarized, in order to accelerate the development of resource utilization of leather solid waste.

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Characterization of tannery sludge activated carbon and its utilization in the removal of azo reactive dye

Abstract: The developed cationic tannery sludge carbon was found to be an effective adsorbent in the removal of the anionic azo reactive dye RR31.

Cited by 35 publications

References 12 publications

Valorization of Toxic Weed Lantana camara L. Biomass for Adsorptive Removal of Lead

Valorization of Toxic Weed Lantana camara L. Biomass for Adsorptive Removal of Lead

Characterization of Acid Impregnated Activated Carbon Developed from Tannery Sludge

Research progress on resource utilization of leather solid waste

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