About us

A Leader in Wastewater Treatment Solutions

Providing a Full Range of Quality, Cost-Effective Solutions for 25 Years

Nearly a quarter-century ago, CST Wastewater Solutions P/L (CST) was founded as Contra Shear Technology:  a supplier of specialised, patented wastewater screens for the industrial and municipal wastewater markets.  Since then, our company has flourished to become a premier provider of innovative wastewater treatment solutions throughout Australia and equipment supplier around the world.

CST offers the latest in specialised mechanical and process equipment, built from our ‘hands-on’ experience in the industry and a clear understanding of our clients’ needs. Beyond equipment supply, we have the ability to design, install, maintain, and in specific cases, operate premium wastewater treatment systems. For clients who require a more comprehensive solution, CST constructs complete wastewater treatment plants in partnership with major specialist companies.
CST Wastewater Solutions Offers a Broad Range of Quality Equipment:
  • Water and Wastewater Screening
  • Grit Removal and Dewatering
  • Septic Receival Stations
  • Dissolved Air Flotation
  • Clarifiers and sedimentation Systems
  • Shaftless Conveyors
  • Sludge Dewatering
  • Lime Handling and Silo Systems
  • Continuous Sand Filters
  • Microfilters and Screens
  • UV Disinfection
  • Ozone Generation
  • Anaerobic Treatment
  • Biogas Reuse
In Addition, We Provide Expert Assistance With:
  • Equipment design
  • Equipment and Systems Selection
  • Equipment installation and maintenance
  • Operation of wastewater treatment systems
  • Complete packaged plants

Why Choose CST?

Experience. In business for over two decades, CST has earned a solid reputation for quality and service.  Our team possesses the extensive ‘first hand’ experience and practical knowledge that is required of today’s wastewater treatment industry, enabling us to select the best equipment and systems for your specific application.
Flexibility. At CST, we don’t believe in a “one-size-fits-all” approach. Rather, our flexibility allows us to assess your unique needs and limitations and deliver the most appropriate and cost-effective solution possible—from basic equipment supply to comprehensive plant design and construction.

Strong Client Focus. Through our broad range of wastewater treatment equipment, systems, reliable service and support, CST is dedicated to helping you conserve time, money and energy. We can develop the best solution for your organisation’s needs. If we cannot devise one, we will be candid in our discussions and direct you to an alternative resource.
Robust Network of Partners. CST works with a number of specialist companies to better serve our clients, including Global Water Engineering, a world leader in process design of wastewater and biogas plants, Smith & Loveless Inc. (S&L), one of the most respected water and wastewater pumping and treatment organisations worldwide and Berson UV-techniek, world leaders in UV disinfection for water reuse. Our strong global partnerships and relationships empower us with the expertise and resources needed to take on the most complex of wastewater treatment challenges.
High Standards of Quality and Safety. All projects at CST are carried out under formal quality and safety systems. Our proprietary wastewater treatment equipment is manufactured to ISO9001 and EEC standards of safety and design. We recognise the importance of Safety & Quality to our clients and adhere to the strictest of systems.

Anaerobic Wastewater Treatment – From Waste Water to Biogas

Wastewaters from the food and beverage industry, pulp and paper mills, and chemical industry are often loaded with organic pollutants and can be advantageously treated by anaerobic processes. Anaerobic treatment of suitable wastewater streams offers a host of powerful advantages, including low sludge production, a smaller footprint, and the ability to become a net producer of energy—rather than a larger consumer.
CST is proud to embrace the worldwide trend towards green energy by offering Anaerobic and Aerobic Treatment with complete tertiary treatment and biogas recovery and utilisation. Our ability to support green energy is made possible through our representation of Global Water Engineering (GWE), an international specialist in Anaerobic Wastewater Treatment. As one of the largest anaerobic process designers in the world, GWE has over 200 plants worldwide as well as vast experience in a host of industries including beer, soft drinks, confectionaries, juices, starch, and pulp and paper. Its impressive roster of clients includes Coca-Cola, Pepsi, Carlsberg, Heineken, SAB-Miller, and Lion Nathan.
Clients in Australia include Pacific Beverage Blue Tongue Brewery, Golden Circle, Visy Paper (Brisbane), Echuca Water Reclamation Plant.

Package Wastewater Treatment Plants

In conjunction with our partner Smith & Loveless, Inc., CST has been supplying package wastewater treatment plants to Australia for more than 20 years. From small projects to industrial estates and mining developments, we offer fast, flexible solutions that fit your timeframe and budget. Our ability to build plants using our proprietary equipment provides us with improved control over project coordination, plant construction and costs.
CST offers various solutions for package treatment plants, including:
  • FAST (Fixed Activated Sludge Treatment): This modular system can be installed above or below grade and offers high-quality treated wastewater while preserving the amenities of the environment.
  • Titan MBR (Membrane Bio Reactor): The latest pre-engineered Wastewater System for municipal and industrial applications, combining S&L’s engineering expertise with existing submerged membrane technology.

Our Commitment

CST is a proud member of the Global Water and Energy Alliance, a group of select companies around the world committed to providing solutions in waste and wastewater treatment for the recovery of green energy and water.
CST Wastewater Solutions is a proud member of the Australian Water Association (AWA), which promotes the responsible management of water and its related resources.

Our Clients

CST works with clients from all corners of the municipal and industrial wastewater markets, including local communities, general contractors and food processors.

Contact Us

Since 1984, CST Wastewater has been committed to providing a wide array of superior products, reliable technical support, and outstanding customer service. For more information on our innovative wastewater solutions, please call us today at +61 2 9417 3611 /or email info@cstwastewater.com or visit the CST Wastewater Solutions website at www.cstwastewater.com
Office:            16/20 Barcoo St, Roseville, NSW, 2069
Telephone:    +61 2 9417 3611
Facsimile:     +61 2 9417 0097
Email:            info@cstwastewater.com
Website:        www.cstwastewater.com