... Application:Mainly used on various industrial wastewater treatment,such as paper-making wastewater, municipal wastewater,oily wastewater, ... and harmless: Doesn't contain any harmful substances such as aluminum, chlorine, heavy metal ions, and water ... in discolouring, dehydrating, deodorizing, degreasing, sterilizing as well as discarding heavy metal iron, radioactive substance and carcinogens ...