
Microalgae Can Clean Domestic Wastewater Without Chemicals or Electricity: Study
Scientists have discovered that the tiny green organisms often referred to as “pond scum” offer a low-tech, low-cost method of cleaning domestic sewage in place of expensive wastewater treatment facilities. All over the world, water is cleaned using large wastewater plants designed to remove chemical, biological and physical contaminants from domestic wastewater or industrial effluent. […]