American Journal of Analytical Chemistry, 2017, 8, 515-522 http://www.scirp.org/journal/ajac ISSN Online: 2156-8278 ISSN Print: 2156-8251 DOI: 10.4236/ajac.2017.88037 Aug. 30, 2017 515 American Journal of Analytical Chemistry The Use of Eucalyptus Activated Biocarbon for Water Treatment-Adsorption Processes Roberta M. Nunes, Damaris Costa, Nilce Ortiz * Center for Environmental Chemistry, Institute for Nuclear and Energy Research-IPEN, São Paulo, Brazil Abstract A biocarbon after activation process showed the removal percentage of 92% of methylene blue in solution, the equilibrium parameter—RL value was in the interval from 0 to 1, with 46% of surface coverage degree. The Freundlich con- stant (n) was higher than 1 as an indication of the physical adsorption process. The Radlich-Peterson calculations obtained the higher R 2 value which g con- stant near 1, a high similarity with Langmuir model. Temkin constant B1 was a positive indication of endothermic process. All calculations provided favor- able results for the use of activated biocarbon for dye removing and possible for other organic substances. Keywords Biocarbon, Radlich-Peterson, Eucalyptus, Temkin 1. Introduction Used worldwide as soil amendment the biocarbon was first cited in the literature as “Terra Preta de Indios” (Amazon Dark Earth) because the Brazil is the largest producer with enormous different kinds and quantities of fine biocarbon. The agroindustry produces different biomass as sugar-cane bagasse, wood and paper mill waste, biofuel waste industry and sewage sludge are making Brazil an im- portant actor in biocarbon production and use for different scenarios [1]. The biocarbon is amorphous materials characterized by its expanded surface area, porosity and the availability of surface active adsorption centers which the ability to bond and remove gases, metals, and organic compounds. Currently, there is an imbalance in the carbon cycle, with CO 2 emissions grow to the at- mosphere and little Carbon retention by the environment compartments, the direct effect is the necessity to develop methods to sequester the atmospheric How to cite this paper: Nunes, R.M., Costa, D. and Ortiz, N. (2017) The Use of Eucalyptus Activated Biocarbon for Water Treatment-Adsorption Processes. Ameri- can Journal of Analytical Chemistry, 8, 515-522. https://doi.org/10.4236/ajac.2017.88037 Received: June 29, 2017 Accepted: August 27, 2017 Published: August 30, 2017 Copyright © 2017 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access