Advances of Bioadsorption as an alternative in the elimination of heavy metals from mining-metallurgical effluents.
Journal Title: IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) - Year 2018, Vol 12, Issue 10
Abstract
This review shows the importance of Bioadsorption as an alternative of low cost, easy elaboration and application and mainly environmentally friendly (adsorbents of organic sources) for the removal of metallic elements in effluents Miner-Metallurgical. Mining makes it possible to obtain important economic currencies; however, following the development of its activities, many of the environmental legacies are seen in large waste and effluent installations with heavy metal presence. This strong impact caused to the water resource needs techniques to remedy and the existing technologies for it as precipitation, reverse osmosis, precipitation, among others are not feasible because they present excessive costs, generate sub products as part of their treatment and demand a lot of energy. Therefore, the Bioadsorption that is responsible for the selective catching of heavy metal ions or other molecules by organic biomass whose functional groups have a great affinity to adsorb these elements turns out to be an advisable option. However, it is not only considered a potential mechanism for the removal of metal solutions, but also for the recovery of precious materials. Its main attraction is the profitability compared to conventional technologies, in addition to not generating toxic byproducts for the environment. The materials to be used for some are "organic waste" such as coconut shells, orange peels, banana peels, rice husks, sugarcane bagasse, among others, but for others they are a source of great potential for exploitation; And there are diverse researches that have shown efficiency of these as bio adsorbents of heavy metals
Authors and Affiliations
Fernández Alvarado M. 1 ,, Flores Córdova D. 1 ,, Lovera Dávila D. 2, Pardavé W3 . , Santamaría Yenni.
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