Channel 5: "How Do They Produce Compost from Domestic Waste?"

This plant near Poole in Dorset takes in 30,000 tonnes/year of 'black-bag' waste. The organic component is separated and then composted. 

The Poole plant also takes 20,000 tonnes/year of food waste. In total, about 25,000 tonnes/year of compost in produced.

Link to Channel 5 video
(item starts just after 6 minutes in)

"Robert dons protective clothing and breathing gear to visit a recycling centre in Canford, near Bournemouth. This state-of-the-art facility transforms 30,000 tonnes of rubbish into rich compost every year. Compost normally takes a long time to prepare, but this facility speeds up the process. After just eight days, the compost is ready to be turned over – using a gigantic tractor with spinning blades. A few weeks later, the compost is ready to serve as ordinary garden mulch."