This Operation and Maintenance Manual for Solid Waste Processing Plants describes the various operational and maintenance aspects of Windrow Compost Plants suited to Class -1 cities. This Manual has been prepared based on the experience of CED in operation and management of the SWM Plants of Thiruvananthapuram and Kochi Municipal Corporation each with capacities of 300 MTs of waste per day. Some quantities, measurements or specifications mentioned in the Manual may not be as such applicable in some of the other Plants working elsewhere. Hence this Manual may be used only as a model and not as the sole handbook with universal applicability. This will be a good reference manual for the Plant operational staff of the ULB or other agencies