top of page

As Strefa Power & Water Solutions industry center, we lead the company's business endeavors in the water/wastewater treatment industries by delivering the widest array of advanced instrumentation, control, and automation technologies available from any supplier. From expert consultant services to world-class technologies to comprehensive project management, field service and technical support, we offer comprehensive I&C solutions


Our clients truly benefit from our innovative and proven solutions. Our services include everything required to design, build, operate, maintain, upgrade and manage water and wastewater treatment facilities, Water Recycle & Reclamation Projects. We have capability in executing EPC projects by integrating state of the art technologies like Sequential Batch Reactor (SBR), Membrane Bio Reactor (MBR), Reverse Osmosis (RO), Volatile Organic Carbon (VOC) Treatment, etc.


We have a wide range of proprietary solid-liquid separation equipment’s for water and wastewater treatment like Flocculators, Clarifiers, Clariflocculators, Thickeners, Rotary Vacuum Drum Filters, Pre-treator, Screens, Detritors, Aerators etc.


We offer sustained solutions for customer needs through a comprehensive range of services, innovative and economical technologies, such as:


  • Complete water management with zero liquid discharge


  • Industrial Wastewater /Effluent Treatment Plants


  • Sewage Treatment Plants


  • Raw Water Treatment Plants


  • Demineralization Plants


  • Condensate Polishing Plants


  • Seawater Desalination Plants


  • Operation and Maintenance



STREFA has developed unique solutions suitable for produced water, process water, potable water, wastewater and contaminated groundwater for its industrial clients. Our proven tailor made systems focus on technical performance, compliance with process and environmental requirements and energy optimization.


Industries in the Asia Pacific region have come to rely on our innovative engineering approach for operational efficiencies a nd cost-effectiveness. From state-of the-art membrane filtration to efficient water process engineering and asset management practices that optimize operational performance, we offer water and wastewater solutions that benefit multiple industries.


Our portfolio of water and wastewater solutions is perfectly designed for industrial clients across the power generation, oil & gas, minerals & metals, food & beverage and pulp & paper industries.


Our whole-of-life offering to operate and maintain industrial water and wastewater infrastructure assets aims to enhance our clients’ return on investment by minimizing operational and maintenance costs without compromising compliance standards or the capital investment.




STREFA is a leader in all facets of industrial water and wastewater treatment plant design, construction and operations and maintenance services. Clients receive innovative process solutions, rigorous detailed design, comprehensive construction services and long-term operations and maintenance support.


Through every stage of the project lifecycle, STREFA collaborates with clients to create an optimal solution that considers the right balance between capital expenditure, lifecycle and operational costs, service delivery and efficiency.


After the delivery of infrastructure assets, our whole-of-life approach to treatment plants aims to maximize efficiency, optimize performance and sustain reliability through rigorous preventative maintenance programs.


STREFA’s expertise in industrial water and wastewater includes:


Pre-treatment specialists (screens, Dissolved Air Flotation (DAF), clarifiers, filtration)


Membrane filtration (microfiltration (MF), ultrafiltration (UF), nano-filtration (NF))


Desalination (reverse osmosis)


Demineralisation (ion exchange)


Ultra-pure water (condensate polishing, tripol)


Zero Liquid Discharge (brine concentration, crystallisation)


Biological nutrient removal


Sludge treatment (aerobic, anaerobic)


Sludge dewatering and handling


Chemical treatment


PH control



With the global community looking more and more towards renewable energy sources, power generators face an ever changing and dynamic market. Success in this new environment will depend upon the ability to adapt, change and take advantage of emerging new opportunities. With extensive experience in providing water for power stations of up to 600 megawatts across Australia and Sout East Asia, STREFA has the capabilities to help power clients meet the challenges of today and tomorrow.


STREFA delivers smart solutions that meet specific water quality requirements to ensure consistent processes and production, while also improving efficiency and reducing waste.


A wide range of equipment and technology solutions are available to ensure power generators have consistent, reliable water quality that is also cost effective. From systems that treat cooling tower make-up and boiler feed to waste treatment systems that minimise or eliminate discharge to the environment, STREFA can develop a solution that considers the entire life-cycle of a water treatment system.




Communities and industry alike face serious challenges in ensuring an uninterrupted supply of high-quality water, while reducing the demand on fresh water supplies and meeting regulatory and environmental requirements.


STREFA’s water capability provides clients in the mining industry with tailored, sustainable solutions that reduce energy consumption, recycle/reuse water, minimize waste and reduce life-cycle costs.


From our origins as a Western Australian based mining services company, STREFA has evolved from its long rich history in delivery essential water infrastructure solutions to become a leader in water management for the mining sector. With STREFA, clients benefit from reducing their operational risk while reducing costs, quick issue resolution, local knowledge and certainty that a solution meets their business needs.




Water solutions are available to assist global oil and gas producers meet stringent water quality and water treatment requirements, with advanced technologies, services, and unmatched expertise. STREFA offers a complete range of equipment, process solutions and operations/maintenance services for produced water treatment, wastewater treatment, water treatment for water recovery, backflow, water reuse, VOC/odor control, and solids/sludge dewatering.

Having delivered numerous projects across Australia and South East Asia, STREFA consistently demonstrates technological know-how in filtration, biological treatment, clarification, sludge treatment and demineralisation treatment of refinery wastewater.




STREFA has successfully delivered multiple turnkey contracts for industries including pulp and paper mills, steel mills, car manufacturing facilities and food processing plants to name a few. Services include technical solutions, such as providing process and engineering design, supply, manufacture, installation and commissioning; to commercial solutions, such as Build Own Operate Transfer schemes.




We also offer our clients the most cost effective and technically sound control system solution. STREFA has developed specialist in-house capabilities in control, instrumentation and SCADA engineering. With a large team of engineers dedicated to the water sector full time, STREFA has self-performed the system integration work on some of our largest projects to date which have achieved numerous industry awards.

bottom of page