ADI Systems is a world leader in industrial wastewater treatment and waste-to-energy solutions. Our innovative anaerobic and aerobic technologies reliably treat wastewater to help plants comply with environmental regulations and reduce/eliminate wastewater surcharges. We can assist with water reuse opportunities, and capture and treat biogas produced by anaerobic digestion so it can be used for renewable energy. With over 35 years of experience, ADI Systems’ wastewater treatment experts customize the most efficient treatment process for each plant’s unique application, providing a turnkey, design/build solution for customers worldwide.

Company details

370 Wilsey Road , Fredericton , New Brunswick E3B 6E9 Canada

More Office Locations Locations Served


Business Type:
Engineering service provider
Industry Type:
Water and Wastewater - Water Treatment
Market Focus:
Globally (various continents)
Year Founded:

ADI Systems has been specializing in the design and construction of industrial wastewater treatment systems for over 35 years. We offer many technologies specifically designed to meet the complex challenges of industrial wastewater treatment. Our primary focus is anaerobic and aerobic wastewater treatment, and biogas treatment and utilization for green energy recovery. We also offer water reuse technologies.

Solutions Trusted Around the World 

More than 260 customers in over 35 countries around the world are benefiting from ADI Systems’ proven wastewater treatment technologies. Our offices in Canada, the United States, Brazil, and New Zealand help us better understand and service the needs of our international customers.

Decades of Experience & Innovation 

ADI Systems’ core group of engineers collectively has 200+ years of experience. Our ongoing commitment to in-house research and pilot studies supports product development—keeping our customers satisfied and keeping us ahead of the competition. ADI Systems continues to expand its many technology offerings and global reach, further positioning itself as a world leader in wastewater treatment.

Customized, Cost-Effective Solutions

We understand that every production facility is different; that’s why ADI Systems works closely with its customers to ensure that the right wastewater treatment technology is selected. Our solutions are customized for each client’s unique needs. 

Contact our wastewater treatment experts to determine the best treatment technology for your plant.

Anaerobic Treatment - Also known as anaerobic digestion (AD), anaerobic treatment is an energy-efficient process in which microorganisms convert organic matter into biogas in the absence of oxygen. 

ADI Systems' anaerobic technologies include:

Contact our wastewater treatment experts to determine the best technology for your plant.

Aerobic Treatment With aerobic treatment, microorganisms convert organics into carbon dioxide and new biomass in the presence of oxygen. These systems can act as stand-alone systems, or polish anaerobically pretreated wastewater.

ADI Systems' anaerobic technologies include:

our wastewater treatment experts to determine the best technology for your plant.

Biogas Treatment & Utilization - Biogas, a by-product of the anaerobic digestion process, contains valuable methane, a highly flammable fuel with incredible money-saving potential. 

ADI Systems offers biogas treatment for H2S removal to assist with waste-to-energy projects. We have extensive experience supplying complete biogas handling, treatment, and utilization systems for the recovery of renewable energy from wastewater and organic waste.

Our biogas technologies can help your facility harness biogas to be used in:

  • Internal combustion engines
  • Gen-sets
  • Microturbines
  • Fuel cells
  • Boiler and steam generating systems
  • Sludge dryers

Contact our biogas experts to learn how to reclaim energy from waste.

ADI Systems offers a wide range of services to help customers around the world select and maintain the best industrial wastewater treatment for their needs:

  • Process design (technology selection, equipment sizing, layout, process control)
  • Detailed design
  • Procurement and fabrication
  • Construction and installation management
  • Waste characterization testing
  • Treatability and pilot studies
  • Multiple project delivery methods
  • Integration of new systems into existing plant operations
  • System commissioning and training 

After installation is complete, ADI Systems is pleased to offer an Aftercare Service Agreement to help ensure the system continues to operate well. Continued process technical support allows ADI Systems to build a genuine rapport with its customers and offers a unique, personalized experience. The ongoing research and development conducted in our laboratory allows us to provide even more value-added support to our customers.

Our number one measure of success is satisfied customers. Read about our many customer case studies.

Contact our wastewater treatment experts today to learn how our services set us apart.