Cogeneration 101
Energy Recovery West Point Treatment Plant South Treatment Plant Cogeneration is the concurrent production of power and heat from the same source. Recycling, Reusing and Reclaiming King County is committed to recovering and reusing the products of the wastewater treatment process at its regional clean-water facilities. The capability to beneficially reuse products increase the efficiency of the wastewater treatment plants, offer environmental sustainability and save the ratepayers money. The treatment plants have three main products : treated water, treated solids known as biosolids , and digester gas. All biosolids are beneficially reused in agriculture and forestry. Some highly treated reclaimed water is reused for irrigation and plant processes. Digester gas is released from the solid matter removed from wastewater during the treatment process. The solid matter is collected and thickened. It then goes to large digester tanks. In the digesters, the solid matter is heated and mixed. ...