A new water source for South East Queensland Endress+Hauser as Main Instrument Vendor (MIV) at the biggest water project in the southern hemisphere © Julia Weimar / PIXELIO Endress+Hauser has been successful addition, the State of Queensland suffered in supplying the majority of the from the repeated effects of unprecedented process instrumentation to the drought. In July 2007, the water reservoirs Western Corridor Recycled Water guaranteeing nearly all the drinking water Project, in South East Queensland supply of the state’s South East urban area (Australia), including highly (2.5 million inhabitants) were only 17 % full. specialized engineered solutions to monitor the water quality through the In 2006, in light of this aggravated drought Project figures treatment processes. situation, the Queensland government As a global provider we support the realized the scale of the issue and carried • 3 advanced water treatment plants processes of environmentally-friendly out an active policy designed to save, • 200 km of large diameter pipelines water treatment with first-class preserve and diversify water resources, • 9 storage tanks products and future-oriented services notably by encouraging the development of • 12 pumping stations and solutions for over 50 years. innovative technical solutions such as the • More than 5,000 workers involved recycling of treated wastewater. The idea • 7.3 million work hours The Western Corridor Recycled Water of the Western Corridor Water Recycling • 26 months of construction Project is the largest recycled water Scheme was born. • Capacity: 232 megaliters purified project in Australia and the third largest water per day recycled water project in the world. The The Western Corridor Recycled Water initiative has attracted worldwide attention Project supplies the Swanbank and Tarong due to the sheer size of the project, its power plants with purified recycled water. engineering complexity and the innovative Additionally the water will be fed in the technology implemented. In April 2008, Wivenhoe dam (the region’s main source the project won the Global Water Project of water supply) – to fulfill the purpose of the Year Award from Global Water of indirect water reuse. The heart of the Intelligence beating competing projects project is three advanced water treatment from the US and Poland. In 2009 WCRW plants. Stage 2 was named Global Water Reuse Project of the Year. Project alliances Five separate alliances (joint ventures) Preserve water resources were chosen to build required equipment. Queensland is Australia’s second largest Partners in these alliances were reputated state and constitutes an area of strong companies such as Thiess, WorleyParsons economic and demographic growth. In or Laing O’Rourke. Peter Glassop Gibson Island Alliance Queensland, Australia 3. The clean water is treated in the next Jose Pastor, Project Engineer at Endress+Hauser step by advanced oxidation. The aim Australia was sitting in our office during the is to destroy any remaining traces of design office process of the Western Corridor – organic or microbiological material Gibbson Island AWTP (Advanced Water by using strong oxidants and ultra Treatment Plant). He immediately became a part violet light. of our alliance team. Having an engineer from the main instrument vendor in the 4. The concentrate needs further design team is of big benefit, because he could free up the design engineers from all treatment such as nitrification and instrument related tasks. This adds a lot of flexibility to the team, especially in such denitrification. a fast track project, where design and construction are happening partly in parallel. 5. Then the water is so clean, that Jose could handle all design changes first hand and helped to keep the momentum conditioning for transport is required. in the project alive. The pH adjustment by using Lime and CO2 dosing to protect the pipes and reduce scaling is happening. Endress+Hauser established a number of also appointed main instrumentation project teams that worked directly with maintenance contractor for all the plants. Tailor made solutions the respective alliances to assist and advise They will act as a subcontractor to Veolia The selected treatment process mirrors on the selection of suitable technologies/ Water, the company responsible for best available technology for advanced products for different applications and operations and maintenance of the Western water treatment. Several parameters must provide expert opinion on all aspects Corridor Recycled Water Project. The be monitored to achieve an excellent of engineering, installation and technicians will regularly maintain and product quality and to minimize the commissioning. verify the instruments’ optional operation. environmental impact by the discharged concentrate stream into the Brisbane River. Endress+Hauser is an expert in the supply Advanced water treatment process This was the challenge Endress+Hauser of instrumentation for water treatment The wastewater from six sewage treatment had to face. plants. The company has provided plants will be processed in state-of-the-art equipment for innumerable plants all over advanced water treatment plants at Analysis the world and has therefore accumulated Bundamba, Gibson Island and Luggage At the intake, the load of nutrients has an unsurpassed level of know-how. The Point. Literally, what has excited the to be measured. Therefore a measuring product portfolio of the company features industry is the unique combination station was installed upstream of each the widest range of products, such as water of technologies used in these advanced advanced water treatment plant (AWTP). analysis, flow and pressure, designed water treatment plants. STIP Scan, the In-situ UV/VIS diode-array- especially for water treatment applications. 1. In a first step, treated wastewater is spectrometer for online measurement of micro-filtered through fine hollow fibre organic load and the Stamolys CA71, Main Instrument Vendor (MIV) membranes that remove tiny particles the process analyzer for online Endress+Hauser acts as a Main Instrument and microbial materials. determination of nutrients in aqueous Vendor (MIV) to assist and support clients. 2. In a next step, the water is cleaned on a solutions are the heart of this station. Services cover all project phases from the molecular level by using reverse osmosis. The station is designed and built by design to warranty stage. In addition, a This process allows water to pass Endress+Hauser, depending on the uniform equipment basis is created to save through, while the dissolved nutrients parameters that were required at the time and money during all project phases are rejected. The results of this step are particular step of the process. Because the as well as during ongoing operation. two streams; the clean water as well as station is located outdoor, the installation The MIV concept ensures efficient and a concentrate of the rejected nutrients. is done in an air conditioned cabinet. fast ordering and project management processes and maximized plant availability due to the optimum harmonization of all The main challenge for Endress+Hauser during components. A Main Instrument Vendor the realization of the several projects for the (MIV) partnership is all about teamwork Western Corridor was the parallelism of the and trust with advantages for all parties events and the extremely tight schedule for involved. In the Western Corridor Recycled supply and commission complex instrument Water Project case Endress+Hauser solutions. We could convince the individual supplied over 3,000 devices at a total value alliances to go for a Main Instrument Vendor in excess of AUD 6 million. This represented solution, based on an open price book nearly the complete instrumentation agreement. For the customer and the supplier commissioned throughout the project’s this is all about partnership and trust through Robert Da Silva treatment plants. The products which all stages of the project development. Project Development Manager were not directly manufactured by Endress+Hauser Australia Endress+Hauser were selected to ensure To help the alliances to complete the project their seamless integration into the in the given time frame team work was not only needed on site, but also within instrumentation concept. Endress+Hauser. We have involved the Australian Project and Product Management as well as the several Product Centres for Flow, Analysis and Level to guarantee a Given Endress+Hauser’s role in this punctual and quality delivery of the individual project scopes. project, the company was subsequently 2 During the treatment, the effectiveness of the nutrient removal must be monitored. River Key parameters are turbidity, total phosphorous and nitrate content. By Discharge Monitoring manufacturing modular panel mounted (Quality and Quantity) wet rack solutions that contain all needed analyzers, Endress+Hauser offers customized and value optimized Water Quality Monitoring Concentrate solutions. Treatment The reverse osmosis (RO) concentrate stream and other waste streams from the pre-treatment undergo additional Advanced treatment before discharging. The quality Oxidation of the discharge is monitored online by another customized wet rack. Water/ Micro Reverse Dosing 3 Wastewater Plant Filtration 1 Osmosis The advantages of the standardized Conditioning wet-rack solution are obvious; the solution could be easily duplicated, the wet racks Flux Control could be assembled and pre-commissioned