Improving water quality for fish aquaculture in the developing world

  • Project Lead(s): Amy Bilton

    More than 842 million people, mostly in the developing world, do not have enough food. Poor nutrition causes 45% of deaths in children under five. This innovation is introducing a passive (natural) aeration system to improve water quality and production in aquaculture ponds. The idea uses the notion that a pond has two layers.  The top layer is oxygen rich, as plants in the water generate oxygen in daylight.  The bottom layer is cold and oxygen depleted.  Unlike aquaculture in developing countries, this system will use no electricity, passively mixing the two layers to improve the pond’s overall oxygen content by up to 30%, resulting in more fish and less antibiotics use on stocks.