It’s not that long ago that the small Southland towns Edendale and Wyndham had many septic tanks that had passed their use by date. In severe cases these tanks would discharge raw sewage into stormwater drains that ran straight into the Mataura River.
Now they have a clever and innovative way of cleaning up with a new sewage plant on the Edendale-Wyndham road where millions of worms quietly work their way through human waste, breaking it down and then putting clean, treated water back into the river.
Project manager Bevan McKenzie takes us on a tour.
Cleaning up our rivers with worms was last modified: December 15th, 2015 by