Photo of Aldo Galli

Energy & sustainability

Aldo Galli

Reusing agricultural waste to improve water quality with low-cost filter material.

Year Honored
2023

Organization
Cocarbon

Region
Latin America

Hails From
Peru

Peru is the eighth country in the world with the largest freshwater reserves. Despite this, half of the population does not have access to safe drinking water, according to the World Bank. The situation in the world is no better: 1.5 million children die each year from drinking contaminated water, according to Oxfam Intermon. Faced with this problem, the young Peruvian Aldo Galli (30 years old) wanted to do something about it by using wasted local resources.

Thus, Cocarbon was born, a company that "cleans water to give people a better future," explains Galli, who has a degree in business administration. Its solution is the production of activated carbon from coconut shells, which gives a second life to what was previously considered just a waste product. This carbon-rich raw material is transformed into charcoal and activated - either chemically or physically - to increase its porosity and thus its adsorption capacity (i.e., to retain atoms, ions or molecules of other substances, which remain attached to its surface). The resulting material manages to "trap" polluting compounds present in gases or liquids, from viruses and bacteria to algae or pesticides, and is already used to purify water or filter gases emitted by factories and refineries.

Coconut shell as a raw material "is a sustainable and efficient alternative, by giving value to something local that didn't have it," says the entrepreneur. In addition, he points out, "it generates a positive impact for the companies that import this element from other countries, by providing more traceability of the process and security of supply." Thanks to this breakthrough, Galli has been selected as one of MIT Technology Review's Innovators Under 35 Latin America 2023 in Spanish.

The raw material for this activated carbon, agricultural waste, is more sustainable than its most used alternatives: wood and mineral coal, Galli points out. In addition, Cocarbon has created a supply chain in Peru itself so that local industries can reduce their environmental impact, generate employment, and reuse local materials. Cocarbon already has a plant in the Amazon rainforest, and Galli's plans are to expand to other areas of the country and use other local waste such as olives, cocoa, and coffee as raw materials.

With a practical, economical, circular, and environmentally friendly solution, this young business administrator seeks sustainable solutions to democratize access to drinking water in Peru. His initiative achieves a triple impact by improving public health and the environment, while generating economic profitability.