Top 10 Wastewater treatment plant Suppliers, Manufacturers, Wholesalers and Traders in South Africa

1. AquaFlow Solutions (Pty) Ltd

With over 20 years in the industry, AquaFlow Solutions has earned a reputation as a trusted partner for both municipal and industrial wastewater treatment. Based in Durban, this family-owned business prides itself on combining global technology with local expertise to solve South Africa's unique water challenges. What sets them apart? Their holistic approach—they don't just supply equipment; they design end-to-end systems tailored to each client's needs.

Key to their offerings is their water process equipment , which includes everything from screening and grit removal to advanced filtration systems. For factories dealing with heavy contaminants, their effluent treatment machine equipment stands out, using a mix of biological and chemical processes to reduce BOD, COD, and suspended solids to meet discharge standards. They've recently expanded into dry process equipment for water-scarce regions, allowing clients to treat wastewater with minimal water loss—a game-changer for areas like the Karoo.

"We believe wastewater is a resource, not a waste," says CEO Sarah Mkhize. "Our goal is to help businesses turn their effluent into reusable water, cutting costs and reducing environmental impact. Last year, we worked with a textile factory in Pietermaritzburg that now reuses 60% of its treated wastewater—saving them over R500,000 annually on water bills."

2. EcoTreat Technologies

If innovation is the name of the game, EcoTreat Technologies is leading the pack. This Cape Town-based manufacturer specializes in compact, energy-efficient wastewater solutions, making them a favorite for small to medium-sized businesses and rural communities. Their claim to fame? Developing South Africa's first mobile wastewater treatment unit—a truck-mounted system that can be deployed to remote areas or disaster zones in hours.

Their core product line includes wet process equipment like activated sludge systems and trickling filters, but they've also made waves with their auxiliary equipment equipment , such as chemical dosing pumps and pH controllers, which ensure treatment processes run smoothly. For wineries in Stellenbosch, their effluent treatment machine equipment is a lifesaver, handling high sugar and alcohol content in wastewater that would otherwise harm local rivers. "We focus on accessibility," explains founder James du Toit. "Not every community or business can afford a large-scale plant, so we design solutions that are effective, affordable, and easy to maintain."

3. WaterWorks Engineering (Pty) Ltd

WaterWorks Engineering has been a cornerstone of South Africa's industrial wastewater sector since 1995. Headquartered in Johannesburg, they serve heavy industries like mining, manufacturing, and petrochemicals, where wastewater often contains complex pollutants like heavy metals and oils. Their secret? A team of chemical engineers and environmental scientists who work hand-in-hand with clients to develop custom treatment plans.

Their wet process equipment includes dissolved air flotation units and biological reactors, while their dry process equipment —such as thermal evaporators—caters to industries with high-salinity wastewater. They're also pioneers in water process equipment for zero-liquid discharge (ZLD) systems, helping mines in Limpopo recover valuable minerals from wastewater while eliminating discharge entirely. "Mining is tough on water, but it doesn't have to be," says operations director Thabo Nkosi. "Our ZLD systems let mines meet regulations and conserve water—two wins for sustainability."

4. ClearStream Environmental

ClearStream Environmental is all about community impact. This Gauteng-based supplier focuses on municipal wastewater treatment, partnering with local governments to upgrade aging infrastructure and improve access to clean water in townships. Their projects range from small package plants for rural villages to large-scale upgrades of city treatment works, like the recent revamp of the Vereeniging Wastewater Plant, which now serves 200,000 residents.

Their effluent treatment machine equipment is designed for reliability, with low energy consumption and easy maintenance—critical for municipalities operating on tight budgets. They also offer auxiliary equipment equipment like sludge dewatering systems, turning waste into biosolids that can be used as fertilizer for community gardens. "Every project we take on is about more than clean water—it's about dignity," says community relations manager Nomvula Dlamini. "When a township gets a new treatment plant, kids can play near rivers again, and families have access to water for cooking and cleaning. That's the real reward."

5. BlueWave Innovations

BlueWave Innovations is the new kid on the block, but they're making waves with cutting-edge technology. Founded in 2018 by a team of ex-researchers from the University of Pretoria, this startup specializes in smart wastewater treatment—using IoT sensors and AI to monitor and optimize treatment processes in real time. Their systems can detect spikes in contamination, adjust chemical dosages automatically, and even predict maintenance needs, reducing downtime and costs.

Their flagship product is the BlueSmart™ water process equipment , which integrates with existing plants to boost efficiency by up to 30%. For food and beverage companies, their wet process equipment uses membrane bioreactors (MBRs) to produce high-quality treated water that can be reused in production. "We're not just selling equipment—we're selling peace of mind," says co-founder Dr. Lee-Ann Naidoo. "Our clients can check their treatment plant's performance from their phone, and our AI alerts them before a problem becomes a crisis. It's wastewater treatment for the digital age."

6. GlobalWater Solutions Africa (Pty) Ltd

As the name suggests, GlobalWater Solutions Africa brings international expertise to South Africa's shores. With parent companies in Germany and the Netherlands—leaders in water technology—they offer state-of-the-art equipment backed by decades of global research. Their focus is on large-scale municipal and industrial projects, including the recently completed Durban North Wastewater Treatment Plant upgrade, which now serves 500,000 residents with improved nutrient removal capabilities.

Their product range includes effluent treatment machine equipment for industrial sites, such as their compact Moving Bed Biofilm Reactors (MBBRs), which treat high-strength wastewater in small footprints. They're also a top supplier of dry process equipment like belt filter presses, used to dewater sludge and reduce disposal costs. "We believe in bringing the best of global innovation to solve local problems," says regional director Hans Mueller. "South Africa has unique water challenges, but with the right technology, we can turn them into opportunities for growth and sustainability."

7. PureFlow Technologies (Pty) Ltd

PureFlow Technologies is a go-to for small to medium enterprises (SMEs) looking for affordable, scalable wastewater solutions. Based in Port Elizabeth, they specialize in plug-and-play treatment systems that can be installed in days, not weeks. Their clients range from car washes and restaurants to small factories, all of whom need to meet local council discharge regulations without breaking the bank.

Their most popular product is the PureMini™, a compact effluent treatment machine equipment that handles up to 5,000 liters per day—perfect for a busy restaurant or auto shop. For businesses with higher volumes, their wet process equipment includes sequencing batch reactors (SBRs), which alternate between aeration and settling to treat wastewater efficiently. "SMEs often feel overwhelmed by wastewater regulations," says founder Zanele Mbeki. "We simplify things—our systems are easy to use, affordable, and designed to grow with your business. No jargon, no hassle—just clean water."

8. GreenTech Water Solutions

GreenTech Water Solutions is on a mission to make wastewater treatment sustainable—for both the planet and their clients' wallets. This Cape Town-based supplier specializes in energy-efficient and resource-recovery systems, helping businesses turn wastewater into a source of revenue. For example, their anaerobic digestion systems not only treat organic wastewater but also produce biogas, which can be used for heating or electricity generation.

Their water process equipment includes biogas upgrading units, which purify biogas into biomethane—fuel that can be sold or used to power the treatment plant itself. They also offer auxiliary equipment equipment like nutrient recovery systems, which extract nitrogen and phosphorus from wastewater to make fertilizer. "Wastewater isn't just a problem to solve—it's a resource to tap," says sustainability director Mark Williams. "We worked with a dairy farm in Stellenbosch that now uses biogas from their wastewater to run their milking machines. They've cut their energy bills by 40% and turned a cost center into a profit center."

9. Industrial Water Services (IWS) (Pty) Ltd

With a focus solely on industrial clients, Industrial Water Services (IWS) has become a specialist in handling the toughest wastewater challenges. From mining tailings to chemical plant effluents, they've seen it all—and developed solutions to match. Based in Rustenburg, they work closely with the mining sector, helping operations comply with the Department of Water and Sanitation's strict guidelines on heavy metal discharge.

Their effluent treatment machine equipment for mining includes ion exchange systems and chemical precipitation units, which remove heavy metals like lead, copper, and zinc to safe levels. They also offer dry process equipment such as filter presses, which dewater sludge so it can be safely disposed of or reused. "Mining is essential to South Africa's economy, but it must be done responsibly," says technical director Johan van der Merwe. "Our equipment ensures mines can operate while protecting our precious water resources for future generations."

10. CommunityWater Projects (CWP)

Rounding out our list is CommunityWater Projects (CWP), a non-profit social enterprise with a heart for rural South Africa. Funded by grants and corporate partnerships, CWP designs and installs affordable wastewater treatment systems for underserved communities, schools, and clinics. Their approach is community-driven—they train local residents to operate and maintain the systems, creating jobs and building long-term sustainability.

Their most common solution is the EcoSan™ system, a low-cost wet process equipment that uses constructed wetlands and reed beds to treat wastewater naturally. These systems are easy to build using local materials, require minimal energy, and produce treated water that can be used for irrigation. They also provide auxiliary equipment equipment like simple chlorination units to ensure the water is safe for use. "Clean water is a human right, not a luxury," says project manager Nomsa Sithole. "In the villages we serve, kids used to get sick from contaminated water. Now, they have safe water to drink, and their schools have gardens watered with treated wastewater. It's transformative."