Removal of heavy metals from aquoeus solutions with biomass
Altynbekova, Indira (2020)
2020
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2020061819137
https://urn.fi/URN:NBN:fi:amk-2020061819137
Tiivistelmä
Nowadays, heavy metal pollution is considered as one of the most dangerous problems, and the use of biomass for uptake of heavy metals helps the environment and it is a potential alternative for the traditional technologies. In this work nine heavy metals (zinc, lead, mercury, cadmium, chromium, copper, nickel, arsenic, iron) are taken into consideration and their side effects are shown. Two problems reduction of waste and removal of heavy metals from aqueous solutions are covered.
As the traditional techniques have some drawbacks, the new method as biosorption has been studied. The several types of biomass such as microbial cells (bacteria and algae) and agricultural waste (rice husk, wheat shell, papaya wood, apricot and peach stones) are included. Different cases for instance the same biosorbent but different metals are considered under conditions such as changing pH, temperature, metal and adsorbent concentrations. All of the conditions showed interesting results depending on the metal and biomass type. Further research is required for the more precise conclusion about the usage of biomass for heavy metals removal.
As the traditional techniques have some drawbacks, the new method as biosorption has been studied. The several types of biomass such as microbial cells (bacteria and algae) and agricultural waste (rice husk, wheat shell, papaya wood, apricot and peach stones) are included. Different cases for instance the same biosorbent but different metals are considered under conditions such as changing pH, temperature, metal and adsorbent concentrations. All of the conditions showed interesting results depending on the metal and biomass type. Further research is required for the more precise conclusion about the usage of biomass for heavy metals removal.