Japanese-Peruvian scientist Marino Morikawa invents eco-friendly and highly efficient way to clean lakes

When Japanese-Peruvian scientist Marino Morikawa learned that the lake that he used to visit during his childhood was about to be capped, he got to work on an effective solution to lake pollution. It used nanotechnology to brink the El Cascajo Wetlands back to life.

El Cascajo, an ecosystem of roughly 50 hectares (123 acres) in Chancay district, located north of Lima, began its recovery in 2010 with two inventions that Morikawa came up with using his own resources and money.

The idea of restoring the wetlands without the use of chemicals came from a call from Marino Morikawa’s father, who told the scientist that El Cascajo “was in very bad condition”.

The news shocked the scientist who at the time was pursuing his PHD degree in Japan, and so he decided to return to his homeland to put an end to the pollution.

Marino Morikawa invented a nano-bubbling system, made up of bubbles 10,000 smaller than those in a soda beverage, that transfixes viruses and bacteria before totally combating and fading them amidst a 4-6 hours process. He also designed clay biological filters that hold pollutants to the surface to be decomposed by bacteria.

It took the scientist just six months to develop the unique technology, and fourmonths to clean the entire wetlands. As a result, dozens of migratory birds species have returned to El Cascajo, and 10 fish species have come back to its waters.

Marino Morikawa said: “Nature does its job. All I do is give it a boost to speed up the process.”

The scientist admits the technology he uses is expensive but believes it’s totally worth it. The solution he adds into the water is 100% organic and can even be eaten. It attracts “bad” bacteria and parasites, and keeps “good” microorganisms that contribute to micro-flora of lakes. As for the ceramic biofilters that Marino used together with the solution, he made them himself at local pottery classes.

Now Marino Morikawa is on a mission, along with his team, to clean other contaminated lakes using his technology including South America’s largest lake, Lake Titicaca in Bolivia, and the Huacachina lagoon, an oasis in the middle of the desert in Ica, Peru.

Marino Morikawa

Rosa Medea is Life & Soul Magazine’s Chief. She writes about sustainable lifestyle and green living for publications, and offers content services to planet-friendly businesses. Find out more at Rosamedea.com 


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