2020, Number 1
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TIP Rev Esp Cienc Quim Biol 2020; 23 (1)
Biosorption of heavy metals by agroindustrial byproducts
Sanchez-Silva JM, González-Estrada RR, Blancas-Benitez FJ, Fonseca-Cantabrana Ä
Language: Spanish
References: 123
Page: 1-18
PDF size: 420.42 Kb.
ABSTRACT
Heavy metal pollution is a problem that affects aquatic and terrestrial environments, where the main source is
anthropic activities. To attend this problem, the scientific community has developed physical-chemical methods for
the removal of heavy metals in contaminated effluents: however, they are not economically favorable as they have
high operating and maintenance costs, and some generate waste that is difficult to handle. However, there is a low-cost,
highly efficient method without the formation of secondary contaminants, called bioadsorption. Bioadsorption uses
agro-industrial by-products with the objective to use the excessive generation of these waste as bioadsorbents for the
removal of heavy metals in wastewater. The use of agro-industrial by-products as bioadsorbents has proven to be an
alternative for their use, consequently, Mexico has potential in the production of bioadsorbents. The objective of this
review is to provide systematized information on the method of removing heavy metals by bioadsorption through the
use of agro-industrial by-products.
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