A comparative review of stormwater treatment and reuse techniques with a new approach : Green Gully

Water restrictions are currently in place in most of the major cities of Australia in response to the severe drought. In order to manage water resources in a sustainable manner and to help reduce the restrictions, developing methods to recycle and reuse the stormwater and effluent water/waste water has become an important and urgent issue.This paper presents a review of the available stormwater treatment and reuse techniques and introduces a new technology known as ‘Green Gully’ that collects, purifies and reuses stormwater throughout an automated network system. The component of Green Gully along with experimental set-up and procedures are described. Preliminary experimental result on performance of Green Gully is provided and discussed. A comparative study of available treatment measures with respect to advantages, disadvantages and pollutant trapping efficiency is presented and discussed. This paper also highlights the current stormwater reuse techniques to reduce the water crisis. Conclusions based on a comparative study of stormwater treatment measures and reuse techniques are presented, which will be useful for stormwater researchers, planners and stormwater management in general.