The aim of this PhD is to study the retention of transition metals by humic substances. Transition metals are essential for life but, depending on their concentration in the environment, they can prove to be toxic and provoke serious environmental impact.
Humic substances are, on the other hand, macromolecules arising from the physical, chemical and microbiological transformation (humification) of biomolecules, explains Álvarez Puebla. Their importance is fundamental as they make up the most widespread an ubiquitous source of non-living organic material that nature knows. Approximately 80% of the total carbon in terrestrial media and 60% of the carbon dissolved in aquatic media are made up of humic substances.
Beyond their relevance for life, these substances have industrial applications for making absorbents of metal-poisoned sources. Being natural substances, their purification process is cheaper than the synthesis of any other absorbent and, moreover, due to their high operability, they absorb more than the absorbents used to date such as active charcoals or clays.
BigH1 -- The key histone for male fertility
14.12.2017 | Institute for Research in Biomedicine (IRB Barcelona)
Guardians of the Gate
14.12.2017 | Max-Planck-Institut für Biochemie
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