Clean water scarcity is one of the top key challenges to mankind in the 21st century. Water demand from municipal use, agriculture and industry is growing worldwide, while water resources are prone to erosion and pollution. Groundwater is one of mankind’s major freshwater reservoirs, yet global groundwater resources are strongly impacted by anthropogenic contaminations. This imposes a serious threat to the sustainable use of groundwater and its ecosystems services. For the protection of global groundwater reservoirs, cheap and robust technology is needed to counter the threat by groundwater contaminations.
There are many methods for the removal or immobilization of toxic metals from groundwater at contamined sites, drinking water wells or river bank filtration sites. Considering the huge economic and technical costs of these methods, they are limited to some countries or regions. This technological novelty can be applied to prevent emission from sources such as contamined sites, or to remove contaminants from bank filtration zones.
- The challenge: How to efficiently remove toxic metals in springs and groundwater reservoirs?
- A feasible solution: Reground, a sustainable and low-cost technique for toxic metal removal, based on nanogeotechnology
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