It is proposed that the facility will accept a range of waste comprising catering waste, commercial organics, timber and green waste. No hazardous wastes will be treated at the site.

Based on the types of materials to be composted by the facility, varying grades of compost will be made at the facility. The plant is capable of producing Class 1, 2 and 3 compost with emphasis on production of Classes 1 and 2.

Class 1 compost is the highest grade horticultural compost sold in bags in garden centres. Class 2 compost is the next grade and is also used in horticulture in bulk by landscape contractors and by farmers.
Class 3 compost is the lowest grade of compost and is only suitable for land restoration or low grade.

The system is operationally flexible since composting takes place in discrete batches. Different grades of compost can be created simultaneously with different feed stocks. Using an in-vessel tunnel system, each tunnel load can be treated independently, making it possible to adapt process parameters for optimal composting when deviations in the waste occur.

Composting at the facility will be carried out in two steps to produce varying grades of compost, as follows:

1. Tunnel composting of all organic wastes including green waste, commercial organics, catering wastes and complementary, bulky, higher-carbon wastes, such as chipped wood and bark. Each tunnel can accept between 250 and 300 tonnes of waste per cycle and each cycle will take approximately ten days. Based on a 10 tunnel system, the facility will be capable of treating up to 80,000 tonnes of waste per year. The product of the tunnel composting is then further treated by aeration

2. Maturation on a specially designed aerated floor of the material is then carried out for a period of up to six weeks to produce either high or low grade compost, depending on the quality of the feedstock.