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Water & Wastewater

Tenix provides innovative water, wastewater, recycled water and drainage infrastructure solutions, tailored to meet the needs of an increasingly challenging market.

With more than thirty years experience in the water sector, we provide cradle-to-grave services for water infrastructure delivery, including project management, design, construction, commissioning, operation, maintenance, rehabilitation and asset management.

We offer:

  • Extensive project management and programme management experience
  • A large and experienced in-house design capability
  • Design, construction, commissioning, operation and maintenance of water and wastewater treatment plants
  • Design, construction, commissioning and rehabilitation of sewage transfer systems, water supply and storage assets
  • Design, construction and commissioning of third pipe, reuse systems and stormwater drainage assets
  • Specialist services in SCADA, telemetry and process control
  • Epoxy coating applications for the protection or rehabilitation of sewerage, drainage and treatment assets
  • Stakeholder and community engagement during project planning and delivery

We are best known for our capability in wastewater and recycled water treatment plant delivery and operation. We have designed and built more than 30 treatment plants in the last ten years alone and currently operate 22 treatment facilities.

We apply a wide range of advanced and conventional treatment process technologies (including SBR, MBR, UF and RO) and can assist clients from the conceptual development of a project through to delivery, commissioning and operation.

Our highly skilled teams deliver further value through collaborative partnerships and innovation in engineering.

What we do:

  • Design & Construct
    • Treatment plants, pumping stations, storage tanks and reticulation networks
  • Commission
    • Treatment plants, processes, mechanical equipment, control systems, pumping stations, storage tanks and reticulation networks
  • Operate
    • Treatment plants
    • 24/7, 365-day, full facilities management services
    • Monitoring and control services including laboratory sampling, testing and interpretation of results
    • Plant process optimization and license monitoring
  • Maintain
    • Treatment plants, pumping stations, storage tanks, and reticulation infrastructure
    • Asset rehabilitation and replacements
    • SCADA, telemetry and process control systems
  • Rehabilitate/Upgrade
    • Treatment plants, pumping stations, storage tanks, reticulation infrastructure
    • SCADA, telemetry and process control systems
  • Asset Manage
    • Condition assessment
    • Rehabilitation
    • Performance monitoring
    • Database management
    • Network planning
    • Asset optimisation
  • Directional drilling
    • Horizontal directional drilling from 50mm to 600mm
    • Trenchless installation of pipe and conduit
    • Specialising in difficult crossings and rock jobs
  • Cathodic protection
    • Protection of metal structures including pipeline networks
    • Surveys (DCVG, Pearson, interference testing) to determine asset integrity and identify faults or protection potential
    • Design and construction of cathodic protection systems
    • Protection level monitoring
    • Stray current mitigation
  • Concrete corrosion protection
    • Protection coatings of treatment processes and transfer networks
    • Rehabilitation of corroded concrete structures including man holes, tanks, pipelines and culverts

How do we do it

Using in-house skills, systems and resources in:

  • Engineering and Design - including process, mechanical, electrical, instrumentation, process control, structural, civil and SCADA engineering expertise.
  • Project Management
  • Program Management
  • Construction
  • Commissioning
  • Operation
  • Maintenance
  • Logistics/Procurement - including scheduling and dispatch
  • Quality Management - ISO 9001
  • Health and Safety Management - AS/NZ 4801
  • Environmental Management - ISO 14001
  • Asset Management

Our customers

  • Water utilities - including Melbourne Water, Yarra Valley Water, Water Corporation of WA, Country Water and Department of Pubic Works (Fiji)
  • Councils - including Bega Valley Shire Council, Wagga Wagga City Council, Brisbane City Council, Gold Coast City Council, Mackay City Council, Far North District Council, New Plymouth District Council, Watercare, Samoa Water Authority
  • Irrigation Companies, including Grampians Wimmera Mallee Water
  • Power Generators
  • Food and Beverage Manufacturers, including Joe White Maltings
  • Mining and Resources companies
  • Other Industrial Applications

Current and recent projects

Mackay Water Recycling Project, Queensland (joint venture with John Holland)
For Mackay Reional Council
Queensland's largest regional recycling project

Our role: Design, management, construction, commissioning and operations of the water recycling facilities for Mackay City Council.

Outcome: Tenix assisted Mackay City Council implement the largest regional water recycling project in Queensland. The project will enable water conservation through the irrigation of high quality effluent to 3200 hectares of sugar cane plantation. It has also resulted in reduced levels of odours and eliminating discharge to the sensitive Great Barrier Reef Marine Park environment.

 

BMP Alliance (2004 - 2009), Queensland
For Gold Coast City Council

Our role: The Beenleigh Merrimac Pimpama (BMP) Alliance is a $220 million program expanding the wastewater network on the rapidly developing Gold Coast. BMP Alliance has constructed 53km of wastewater pipes, decommissioned 34 pump stations, upgraded 42 pump stations, added overflow storage to six pump stations and built eight new pump stations.

Outcome: As infrastructure has been progressively delivered, Gold Coast Water has begun to experience many benefits including fewer wastewater overflows, reduced network operational costs, lower energy use and the elimination of operating noise and odours in residential areas.

 

Bega Valley Sewerage Program (Construction 2003 - 2008), NSW
For Bega Valley Shire Council, NSW

Our role: Design, construct, commission, operate and maintain five existing sewage treatment plants and the construction of Greenfield pressure sewerage systems, a including four Membrane Reactor (MBR) treatment plants and an effluent reuse systems.

Outcome: On the Bega Valley Sewerage Program, MBR treatment plants and LPS (Low Pressure Sewerage) systems were combined to provide a world-first solution. Tenix's innovative approach utilised recently available technology, involved the client at every stage of the program and rolled out community management and environmental approvals within the scope of works.

 

Brushy Creek Wastewater Treatment Plant (2007), Victoria
For Yarra Valley Water, VIC

Our role: Design, build and commission a Class A Recycled water treatment plant using Chloramination, UF filtration, UV disinfection, and Chlorination within tight timeframes.

Outcome: A technically complex Class A Recycled Water Plant (concept, design, approvals, procurement and commissioning) delivered for the client in just 16 weeks.

 

Industrial Wastewater Treatment Plant, Western Australia
For ABB Grain, WA

Our role: Tenix was involved in the design and construction of a wastewater treatment plant for Joe White Maltings' Perth facility. Tenix Alliance adopted a combination of Membrane Bioreactor and Reverse Osmosis technology for this plant to provide a treated water stream of a quality "better than Perth drinking water".

Outcome: Treating an average 1.4ML of wastewater daily, the Joe White Maltings system is now one of the nation's largest industrial combinations of membrane bioreactor (MBR) and reverse osmosis (RO) technologies providing security of supply for Joe White at its Perth facility, which churns out 40 per cent of the company's annual production of 500,000 tonnes of malt product. Tenix Alliance is now constructing a similar plant at Joe White Maltings' Ballarat plant in Victoria.

 

Apia Wastewater Treatment Plant (2008), Samoa
For Samoa Water Authotiy

Our role: Design, construct, commission and operate the first centralised custom-build wastewater treatment plant in Apia, Samoa.

Outcome: While Tenix managed the entire turn-key project, it also engaged local engineers and, worked closely with the client to deliver a design that not only doubled the process influent capacity with minimal investment; its sludge dewatering proposal reduced long-term transportation costs for the client.

 

Wainibuku & Navitoka Reservoir System & Pipeline (2005-2007), Fiji
For the Government of Fiji

Our role: Design, supply and construction of potable water reservoirs including piping, tanks and equipment for the Wainibuku Reservoir and Navitoka Pumping Station in Suva, Fiji.

Outcome: As the main contractor, Tenix delivered a superior, more robust tank installation which reduced future maintenance and improved reliability by proposing a liner-free bolted tank alternative to the original specification.

Tenix was very sensitive to the community and the environment too; it used local labour to provide employment opportunities within the community, had zero LTIs and, any affected wetlands and surrounding forest were reinstated post-install of the cross-country pipelines.