BlueGreen Water Technologies, founded by Hebrew University of Jerusalem’s Dr. Moshe Harel, has developed Lake Guard treatment for algae bloom – a massive US problem. Approved by the U.S. Environmental Protection Agency it safely kills cyanobacteria, revitalizing the water in just a few days.
https://www.jns.org/opinion/algal-bloom-the-latest-challenge-for-israeli-water-technology/