• Dr. R. V. Ramana Murthy

Date nuts dust was used to remove Pb(II) from aqueous solutions and industrial wastewaters by the adsorption. Batch mode adsorption experiments are carried out to assess kinetic and equilibrium parameters. They allow initial adsorption coefficient, adsorption rate constant and maximum adsorption capacities are to be computed. Removal of mg/g increases with increase of metal concentration and contact time. The adsorption data have analyzed and fitted to both Langmuir and Freundlich classical adsorption isotherm models. The adsorption capacity (Qo) calculated from Langmuir isotherm was 29.53 mg Pb(II) /g Date nuts dust at initial pH of 2.0 at 27+2oC for particle size 0.430 mm. increase in pH from 2-10 decreased percent removal of metal up to 7 latter onwards removal of metal is negligible coupled with regeneration study of Pb(II) by NaOH; allowed us to propose an adsorption mechanism by Ion-exchange between metal ion and H+ ions in Date nuts dust surface quantitative recovery of Pb(II) is possible by NaOH

Date nuts, Heavy metals, pH, Wastewater treatment, Removal, Advanced techniques

"ADSORBENT PREPARED FROM BIOMASS AS AN BIO-SORBENT FOR THE ELIMINATION OF HEAVY METAL FROM WASTEWATERS - BATCH MODE METHODS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 4, page no.414-420, April-2021, Available :http://www.jetir.org/papers/JETIR2104257.pdf

"ADSORBENT PREPARED FROM BIOMASS AS AN BIO-SORBENT FOR THE ELIMINATION OF HEAVY METAL FROM WASTEWATERS - BATCH MODE METHODS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 4, page no. pp414-420, April-2021, Available at : http://www.jetir.org/papers/JETIR2104257.pdf