Production and characterization of activated carbon prepared from PVA defect coffee

Química Nova

Resende, Eliane C. de¹  Guerreiro, Mário C.¹  Universidade Federal de Lavras, Lavras, Brasil¹  Gonçalves, Maraísa¹  Ramos, Paulize H.¹ 

关键词: coffee bean defect;    activated carbon;    adsorption.;   

DOI  :  10.1590/S0100-40422009000500011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The black, green and sour coffee defect (PVA) contributes with 20% of the total coffee production. It should be separate from the normal coffee grains in order to improve the final quality of the beverage. In this way, the present work has the objective to use the PVA reject for the production of activated carbon. The activated carbon (CA) was prepared from PVA defect using zinc chloride as activating agent. The prepared material (CA PVA) was characterized and the adsorption tests were carried out using as organic models methylene blue (AM) and reactive red (VR). The CA PVA revealed to be more efficient in the removal of the organic contaminants compared to a commercial activated carbon.

【 授权许可】

Unknown