Mexican students remove lead from water using eggshell
A Mexican student team has developed a novel approach to adsorb lead in industrial wastewater by utilising eggshells, a locally abundant bio-organic waste material.
By mixing ground-up eggshells in a liquid lead solution, the young Mexicans successfully removed more than 90% of lead pollutants from liquid waste.
This low-cost, time-efficient method may provide an alternative solution for removing heavy metals, a pollutant and health hazard around the world, from water. The quick and effective process can be applied in both small-scale industries large industrial operations.
 | During the World Water Week the studenst Adriana Alcántara Ruiz, Dalia Graciela Díaz Gómez and Carlos Hernández Mejía from the Cultural Institute of Paideia in Toluca, Mexico, were awarded the prestigious 2007 Stockholm Junior Water Prize. They received the Prize from the hands of H.R.H. Crown Princess Victoria on behalf of the Stockholm Water |
For its project The Biochemical Detoxification of Heavy Metals and its Application to the Water-Soil Environment in the Agricultural Wetlands of the Pearl River Delta, China, the Chinese team of Yang Guo, Junhong Wu and Sisi Yu received honourable mention.
The Stockholm Junior Water Prize is presented each year to high-school age students for outstanding water-related projects that focus on topics of environmental, scientific, social or technological importance. The international honour is given to an individual or group who, like
their 27 co-competitors, has been awarded the top prize among national competitions.
World Water Week
SIWI
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