Here the dewatered cake is mixed with amendments (woodchips and sawdust) and placed into piles inside the composting shed. The piles must generate temperatures in excess of 55 degrees Celsius for 3 days and greater than 40 degrees Celsius for 14 days to demonstrate the pathogen and vector attraction reduction as per the regulations. After a minimum of 21 days, the compost is then screened through a trommel screen. This is done to recover amendments for re-use.
The compost is then moved to an outside curing pile for 30 days. Once this process is completed the compost is ready for use.