The goal of our project was to develop an experimental solution to environmental pollution and to analyze the sustainability of the process.
We used a synthetic clay named Na-SAP-20, a mineral which possesses ion exchange properties which allow it to recover heavy metals and other pollutants from bodies of water.
The method we developed was tested on Co2+, a material recognized as ‘critical’ due to its uses in a range of industrial, sustainable and technological applications, and on Cr3+ which is a common polluting agent found in freshwater.
The material absorption capacities have been analyzed by spectrophotometry UV-VIS, ICP-MS and NMR-relaxometry; we compared the results obtained with these analytical techniques focusing on the advantages and disadvantages of each one.
Water is the most precious asset for every nation. Our project, based on environmental sustainability and in particular the reduction of water waste, uses beta-cyclodextrins (completely natural and starch-derived) absorbed in Liquidambar berries (abundant material in nature) for the removal of heavy metals and polluting molecules from the water.
The plan was born from the observation, on our territory, of berries, which have a particular structure, because of the high contact surface (both external and internal).
Our idea, in addition to using abundant waste material as berries are not used in other sectors, it is also very practical, because we could use beta-cyclodextrins absorbed in berries, for water purification in the drainage channels of the rice paddies present in our territory.
The project aims to environmental protection through the use of new natural materials. We have created saponite pellets, a material capable to adsorb a large quantity of pollutants on its surface. The synthesized pellets are able to adsorb, over a period of about a day, a high percentage of pollutant material present in the water. We’ve done tests of contact between the pellets of saponite with a solution of a polluting standard molecule such as Rhodamine B. Then we have calculated the adsorbed concentrations through a simple UV spectroscopy visible thanks to the colored nature of the sample solution. We thought an industrial application for those materials because they’re natural, economic and easy to synthesize.