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In page Noemí Zaritzky:

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In order to reduce the pollution caused by the food industry, Zaritzky developed techniques that apply natural coagulants to treat effluents, and created technologies that take advantage of the collaborative work of bacteria. Microorganisms build up "consortia" that consume pollutants and purify water. Thus, the use of these technologies in the food industry will reduce the pollution that it causes in the waters of rivers, streams and lagoons. In addition, Zaritzky found a solution to the problem of waste generated by the processing of prawns, crabs, shrimp and crabs in Patagonia. Chitosan is obtained from these crustaceans, which is used to synthesize micro and nanoparticles, which are capable of decontaminating waters with chromium, a carcinogen.[citation needed]