Siemens to provide IPS composting system in China  

Guodian Northeast Environmental Protection Industry Group, Ltd. has selected Siemens Industry Automation Division (Nuremberg, Germany; www.siemens.com/water) to supply an IPS composting system using the new Mechanically Enhanced Biodrying (MEB) process for the Shenyang Wastewater Treatment Plant Sludge Treatment Project in Shenyang, China. It will be the largest IPS composting facility ever built, and one of the largest sludge treatment processes in the world using non-thermal processing. The IPS composting system is scheduled to be commissioned in the fall of 2012. The IPS system for Guodian in Shenyang will be used in a new sludge treatment facility that will serve three existing wastewater treatment plants and one new plant. The plants have been landfilling or land applying wet (20% solids) sludge. China recently passed a law that sludge must be a minimum of 60% solids for land application and/or landfill disposal. In the first commercial application of Siemens’ IPS composting system’s biodrying process, the Shenyang plant is designed to dewater 1,000 wet metric tons per day of wastewater sludge, from 20% solids to 65% solids without the need to add heat, as in a thermal process. Also, with the MEB process, there is…