Removal of Lead from Aqueous Solutions Using Different Coffee by-products (Coffea arabica L.)

South Sustainability

Elvito Villegas¹  Armando Vélez-Azañero²  Jordy Pariona-Palomino³ 

[1] Departamento Académico de Química, Facultad de Ciencias, Universidad Nacional Agraria La Molina, Lima, Perú.;Facultad de Ciencias Ambientales. Escuela de Ingeniería Ambiental. Universidad Científica del Sur. Panamericana Sur Km 19. Lima 42, Perú.;Universidad Científica del Sur. Lima, Perú.;

关键词: Biosorbents;    biosorption;    agricultural waste;    Coffea husk;    heavy metals;   

DOI  :  10.21142/https://doi.org/10.21142/SS-0201-2021-r001

来源: DOAJ

【 摘 要 】

The production and contamination of heavy metals have increased because of industrialization, which endangers biodiversity and human health. Several heavy metal removal techniques are available, but with different disadvantages; that’s why research and innovation are needed. This research aims to summarize the literature on the removal of lead (II) from aqueous solutions using different coffee by-products such as coffee husk (Coffea arabica L.) and other organic waste-products, which have potential low-cost biosorbent materials with a high yield of lead biosorption (II). A higher yield of lead (II) biosorption has been found in grounds and coffee husk, higher than 90% and 230 mg/g, respectively. Therefore, the need to go deeper in the search for new biosorbents that are sustainable over time. Also, it was shown that as the pH value increases, the sorption process decreases.

【 授权许可】

Unknown