Water Journal : Water Journal September 2013
september 2013 water 37 Feature article to ensure an environmentally sustainable future for the region. Ultimately, the project has delivered successfully on its objectives, with reuse water dramatically reducing reliance on the River Murray by more than 650ML per year. The wastewater treatment plant constructed in Berri is capable of treating 400ML a year of Community Wastewater Management Systems (CWMS) reuse water for distribution on Berri Golf Course and council sporting grounds. Two new CWMS pumping stations were also constructed to replace existing assets, which included the wet wells, control equipment and telemetry for remote monitoring. A similar plant was constructed at Barmera, where the treated wastewater is reused on the Barmera Golf Course and Riverland Field Days site. Barmera also received a new CWMS pumping station of a similar design to the Berri facility, which is capable of providing 224ML of water per year for reuse. The Glossop lagoons were upgraded to a capacity of 39ML per year and the water is reused on adjacent vineyards or transferred to the Barmera site for further treatment. Each plant utilises a combination of enhanced lagoon-based treatment, pressure screen filtration and chlorination processes prior to the distribution of the Class B water. Pumping stations and new pipelines enable the transfer of treated effluent to demand areas. Water can also be transferred between the three plants, thereby creating an integrated reuse network that has been established between the three towns. An important part of the project from TRILITY’s perspective was to find the right solutions to meet the growing needs of each of the communities and their associated industries. Trade waste from a local winery is transferred to the Barmera site, where a specialised wastewater treatment plant uses a sequenced batch reactor with chemical addition to treat the effluent for disposal. The contract with the Berri Barmera Council to design, build, finance and operate water reuse facilities across the Riverland is in operation for 25 years. The project provides a disposal path for industrial wastewater and the treated effluent is used to irrigate the local golf courses and parklands. Minimising the environmental impact of the system was paramount. The new treatment plants and pumping stations replaced existing assets, which were ageing and at risk of failing. The new treatment lagoons replaced infrastructure, which included asbestos sheeting and substandard leakage prevention. The new lagoons utilise an HDPE lining over a compacted clay base to minimise the possibility of leakage, and detection systems ensure that no water is leaking into the surrounding soil and water table. The Riverland’s central sporting area for hockey, baseball and softball is Alan Glassey Park at Berri, which also receives reuse water as part of this project. Providing irrigated playing fields ensures sport can be played in comfort all year round. One of the key aspects of the project has been the minimisation of energy consumption in the treatment process. This was achieved by applying the time-tested treatment method of facultative lagoons to achieve the required level of treatment. In addition to the low-energy domestic wastewater treatment, the treatment of the industrial wastewater was based on future expansion to irrigate giant reeds, which can be used sustainably in paper production or power generation. the Lion Co Australia Wastewater recycling plant at the company’s Castlemaine-perkins brewery in milton, brisbane.
Water Journal August 2013
Water Journal November 2013