Improved wastewater treatment has led to wildlife ‘success story’, research shows
Insect life has rebounded in a river receiving all of Swindon's wastewater thanks to substantial investments to improve sewage treatment, according to a DEFRA-funded study.
The River Ray in Wiltshire, which lies downstream of Swindon’s major sewage plant, is largely formed of treated wastewater and had seen steep declines in wildlife populations from the 1960s onwards.