The EXELYS continuous thermal hydrolysis process for biosolids treatment from Kruger USA offers effective anaerobic digestion pretreatment with energy balance and solids reduction. In a typical LD (lysis-digestion) configuration, dewatered cake is continuously fed to it. As the cake enters the system, steam is injected, raising the temperature to that required for hydrolysis to occur. After at least 20 minutes at temperature, the hydrolyzed material is cooled via heat exchangers and pumped to anaerobic digesters. The solids concentration into the digesters can be as high as 8 to 10 percent, increasing capacity. 919/677-8310; www.krugerusa.com.