Coffee pulp characterization and treatment as adsorbent material for heavy metal removal from landfill leachates

Abstract To add value to wastes from the coffee crop, this research physically and chemically characterized pulp waste an organic farm crop located in Santa Bárbara (Antioquia-Colombia), specifically analyzing whether or not material has promise for heavy metal removal wastewater, such as landfill leachate. The was thermally modified improve its physical chemical condition sorption capacities. Sorption before after modification thus point of zero charge, surface area, functional groups, elemental morphological analysis, lignin, cellulose, hemicellulose content. tests Cu Pb capacity were also carried out batches determining kinetics using leachates Neal Road Landfill, Butte County, Northern California, USA. Results showed that a high potential liquid-effluent treatment because rate achieved around 70% 90% copper lead, especially when there are simultaneously solution (leachate). Also, it can be concluded these experimental conditions, biosorption by will allow legally established permissible limits satisfactorily fulfilled.