Home / Efficient and responsible pretreatment of industrial wastewaters, good examples in videos Efficient and responsible pretreatment of industrial wastewaters, good examples in videos Pretreatment at Valio dairy Pretreatment at Orion pharmaceutical plant Pretreatment at Kalevela Koru jewelry factory Pretreatment at Kalatukku E. Eriksson fish processing plant Pretreatment at Fortum Recycle and Waste, waste and environmental services company