Water is more than a resource in the Democratic Republic of the Congo (DRC); it's the lifeblood of communities, agriculture, and industry. Yet, as urban centers grow and industrial activity expands, untreated wastewater has become a silent crisis—contaminating rivers, spreading waterborne diseases, and threatening the livelihoods of millions who depend on clean water. In this context, wastewater treatment plants are not just infrastructure; they are lifelines. Today, we shine a light on the top 10 suppliers, manufacturers, wholesalers, and traders in the DRC who are leading the charge to turn wastewater into a resource, one treatment plant at a time.
The Stakes: Why Wastewater Treatment Matters in the DRC
In cities like Kinshasa, Lubumbashi, and Goma, rapid urbanization has outpaced infrastructure development. According to the World Health Organization, over 60% of urban residents lack access to basic sanitation, leading to wastewater flowing directly into rivers like the Congo and Ubangi. This not only fuels outbreaks of cholera and dysentery but also degrades farmland, where contaminated water is used for irrigation, reducing crop yields and endangering food security.
Industrial sectors, too, face pressure. Mining, manufacturing, and agriculture generate large volumes of wastewater rich in heavy metals, chemicals, and organic matter. Without proper treatment, these pollutants seep into groundwater, harming aquatic life and making water unfit for human use. For the DRC, a country with vast natural resources and a growing economy, sustainable wastewater management is not just an environmental issue—it's a cornerstone of public health, economic resilience, and social stability.
Challenges Facing Wastewater Treatment in the DRC
Despite its importance, wastewater treatment in the DRC faces significant hurdles. Limited government funding means many municipalities cannot afford large-scale treatment plants. Technical expertise is scarce, with few local engineers trained in modern wastewater technologies. Additionally, the country's diverse geography—from dense urban slums to remote rural areas—requires flexible, scalable solutions that can adapt to different contexts.
This is where specialized suppliers and manufacturers step in. By offering tailored equipment, local support, and innovative technologies, these companies are helping bridge the gap between need and action. Below, we profile the top 10 players driving this change.
Top 10 Wastewater Treatment Plant Suppliers in the Democratic Republic of the Congo
1. AquaTreat DRC
AquaTreat DRC has emerged as a leader in sustainable water solutions, with a focus on wastewater treatment machine equipment designed for the unique challenges of Congolese communities. Founded in 2010, the company has partnered with local governments and international NGOs to install over 50 treatment plants across Kinshasa, Lubumbashi, and Kisangani.
What sets AquaTreat apart is its commitment to water process equipment that balances efficiency with affordability. Their modular systems, which include filter press equipment for solid-liquid separation and compact aerobic digesters, can handle capacities ranging from 500 kg/hour to 5,000 kg/hour—making them ideal for both small towns and large industrial sites. In 2023, they completed a project in Bukavu, where their wastewater treatment machine equipment now serves 100,000 residents, reducing waterborne disease cases by 40% in just six months.
AquaTreat also invests in local talent, offering training programs for technicians to maintain and repair equipment. "We don't just sell machines—we build ecosystems," says CEO Marie Nkosi. "Our goal is to make wastewater treatment accessible, even in remote areas."
2. Congo Water Solutions (CWS)
Congo Water Solutions (CWS) specializes in wet process equipment , a technology well-suited for the DRC's high organic load wastewater from agricultural and food processing industries. With a factory in Kananga, CWS manufactures customizable systems that use biological treatment to break down pollutants, producing clean water and nutrient-rich sludge for fertilizer.
One of their flagship products is the "EcoFlow" series, which combines filter press equipment with anaerobic digesters to maximize resource recovery. In Mbandaka, a major fishing hub, CWS installed an EcoFlow plant for a fish processing cooperative, treating 2,000 kg/hour of wastewater and converting waste into biogas for cooking fuel. "Before, we dumped wastewater into the Congo River, harming fish stocks and making our workers sick," says cooperative leader Jean-Pierre Kamba. "Now, we save money on fuel and sell excess fertilizer—CWS turned a problem into profit."
CWS also prioritizes sustainability, using locally sourced materials to reduce costs and carbon footprint. Their team of engineers works closely with clients to design systems that fit their budget and space constraints, ensuring long-term adoption.
3. GreenTech Wastewater Systems
GreenTech Wastewater Systems has made a name for itself with dry process equipment , a low-water, energy-efficient solution perfect for arid regions of the DRC like Katanga. Unlike wet process systems, dry process equipment uses filtration and evaporation to treat wastewater, making it ideal for areas with limited water resources.
Their "DryMax" system, which includes a compact granulator with dry separator, has been deployed in mining camps across southern DRC, where water scarcity is a critical issue. "Mines generate a lot of wastewater, but they can't afford to waste a ｄｒｏｐ," explains GreenTech's technical director, Dr. Lucas Tshibala. "Our DryMax uses 70% less water than traditional methods and recovers valuable minerals from sludge, turning waste into a revenue stream."
GreenTech also offers mobile treatment units for emergency response, such as after floods or industrial spills. In 2024, they deployed three units to Goma following a volcanic eruption, providing clean water to displaced communities within 48 hours. "Speed and adaptability are key in crisis situations," says Dr. Tshibala. "Our equipment is designed to be rugged and easy to transport, even on rough Congolese roads."
4. Nile Water Innovations
Nile Water Innovations focuses on urban wastewater treatment, with a portfolio that includes wastewater treatment machine equipment for high-density areas. Their "CityClean" plants are designed to handle large volumes—up to 10,000 kg/hour—using a combination of physical, chemical, and biological processes to remove contaminants.
In Kinshasa's Matonge district, Nile installed a CityClean plant in 2022 that now serves 250,000 residents. The plant features advanced filter press equipment to separate sludge, which is then transported to a nearby composting facility. "Before, our neighborhood was surrounded by open sewers—flies, odors, constant sickness," recalls resident Aisha Mbala. "Now, the streets are clean, and our kids can play outside without getting sick. Nile didn't just build a plant; they gave us our community back."
Nile also integrates smart technology into its systems, allowing remote monitoring via mobile apps. This helps operators detect issues early, reducing downtime and maintenance costs. "In a city like Kinshasa, where infrastructure is strained, reliability is everything," says CEO James Okafor. "Our tech ensures that the plant runs smoothly, even when resources are tight."
5. EcoWater Congo
EcoWater Congo is a wholesaler and trader specializing in imported water process equipment from Europe and Asia, tailored to the DRC's needs. They partner with global brands to bring cutting-edge technologies, such as membrane bioreactors and UV disinfection systems, to Congolese clients.
What makes EcoWater unique is its focus on after-sales support. They maintain a large inventory of spare parts in Kinshasa and Lubumbashi, ensuring quick repairs. "Importing equipment is easy; keeping it running is hard," says founder David Kimani. "We provide 24/7 technical support, so clients never have to wait weeks for a replacement part."
EcoWater also offers turnkey solutions, managing projects from design to installation. In Kisangani, they partnered with a hospital to install a wastewater treatment system that meets international health standards, protecting patients and staff from infections. "Hospitals generate highly contaminated wastewater—blood, chemicals, pathogens," explains Kimani. "Our system ensures that water is treated to a level where it can be safely reused for irrigation or released into the environment."
6. Congo Industrial Solutions (CIS)
Congo Industrial Solutions (CIS) caters to heavy industries, offering robust wastewater treatment machine equipment for mining, oil, and manufacturing. Their systems are built to handle high concentrations of heavy metals, acids, and toxic chemicals, ensuring compliance with both local and international environmental regulations.
One of their key products is the "MetalClear" series, which uses chemical precipitation and filter press equipment to remove lead, copper, and zinc from mining wastewater. In Kolwezi, a major copper mining town, CIS installed a MetalClear plant for a mining company, reducing heavy metal discharge by 95% and avoiding hefty fines from environmental authorities. "Mining is vital to our economy, but it shouldn't come at the cost of our environment," says CIS project manager Sophie Nzau. "Our equipment helps companies operate responsibly while staying profitable."
CIS also offers on-site training for industrial workers, teaching them how to operate and maintain the equipment safely. "Many industrial accidents happen because of improper use," Nzau adds. "By empowering workers, we ensure that the equipment works as intended—protecting both people and the planet."
7. WaterTech Africa
WaterTech Africa is a manufacturer based in Kisangani, specializing in low-cost, community-scale wet process equipment . Their "VillageFlow" systems are designed for rural areas, using simple, gravity-driven processes that require minimal energy and maintenance.
The VillageFlow uses a series of settling tanks, biofilters, and constructed wetlands to treat wastewater, producing water clean enough for irrigation. In a rural community outside Butembo, WaterTech installed a VillageFlow system that now serves 500 households and a small school. "Before, women walked 5 km to collect clean water," says community leader Pastor Michel Lumbu. "Now, we have water for our crops and our homes. The children no longer get sick from dirty water—it's a miracle."
WaterTech Africa prides itself on affordability, with VillageFlow systems costing 30% less than imported alternatives. They also use local materials, such as bamboo and clay, to build the tanks, supporting local artisans. "Rural communities can't afford fancy equipment," says founder Dr. Amara Diop. "Our goal is to create solutions that are simple, cheap, and owned by the community."
8. CleanFlow DRC
CleanFlow DRC is a trader that imports and distributes dry process equipment for small to medium-sized enterprises (SMEs). Their product line includes compact granulators with dry separators, which are ideal for businesses like textile factories and auto repair shops that generate moderate volumes of wastewater.
In Goma, CleanFlow supplied a dry process system to a textile factory that was previously dumping dye-contaminated water into Lake Kivu. The system uses filtration and adsorption to remove color and chemicals, allowing the factory to reuse 80% of the water. "We were facing closure because of pollution complaints," says factory owner Fatima Hassan. "CleanFlow's equipment saved our business and our workers' jobs."
CleanFlow also offers financing options for SMEs, allowing them to pay in installments. "Many small businesses want to do the right thing, but they can't afford upfront costs," says sales director Paul Mutombo. "We make sustainability accessible by spreading payments over time, so they can invest in their future without breaking the bank."
9. Congo Water Works (CWW)
Congo Water Works (CWW) is a full-service provider, offering everything from design and engineering to installation and maintenance of wastewater treatment plants. They specialize in hybrid systems that combine wet process equipment and dry process equipment to maximize efficiency and flexibility.
In Lubumbashi, CWW designed a hybrid plant for a university campus, treating 1,500 kg/hour of wastewater from dormitories, labs, and cafeterias. The system uses wet processes to break down organic matter and dry processes to remove solids, producing water for campus gardens and athletic fields. "We wanted to teach students about sustainability by example," says university chancellor Dr. Emmanuel Banza. "CWW's plant not only treats our wastewater but also serves as a living classroom for environmental science students."
CWW also partners with international development agencies, such as the UNDP and World Bank, to implement large-scale projects. Their team of engineers and project managers has experience working in conflict zones and remote areas, ensuring that even the most challenging projects are delivered on time and on budget.
10. Sustainable Water Solutions (SWS)
Rounding out our list is Sustainable Water Solutions (SWS), a trader focused on eco-friendly water process equipment that minimizes energy use and carbon footprint. They import solar-powered treatment systems, bioremediation products, and natural filtration media, such as coconut shell activated carbon.
In remote areas without reliable electricity, SWS's solar-powered systems are a game-changer. In a village in the Ituri Province, they installed a solar-driven treatment plant that now provides clean water to 800 people. "We used to rely on rainwater, which often ran out in the dry season," says village elder Thomas Mobutu. "Now, we have water year-round, and the system runs on sunlight—no fuel, no costs."
SWS also promotes circular economy principles, selling equipment that recovers resources from wastewater, such as phosphorus and nitrogen for fertilizer. "Wastewater isn't waste—it's a resource," says founder Sarah Nguvu. "Our goal is to help the DRC transition to a circular economy, where nothing is wasted and everything is reused."
Comparison Table: Top Wastewater Treatment Suppliers in DRC
| Supplier Name | Key Products | Specialty | Capacity Range |
|---|---|---|---|
| AquaTreat DRC | Wastewater treatment machine equipment, filter press equipment | Modular systems, local training | 500–5,000 kg/hour |
| Congo Water Solutions (CWS) | Wet process equipment, filter press equipment | Agricultural/industrial wastewater, resource recovery | Up to 2,000 kg/hour |
| GreenTech Wastewater Systems | Dry process equipment, compact granulator with dry separator | Arid regions, mining, mobile units | Varies (mobile units: 500–3,000 kg/hour) |
| Nile Water Innovations | Wastewater treatment machine equipment, filter press equipment | Urban areas, smart technology | Up to 10,000 kg/hour |
| EcoWater Congo | Water process equipment (imported) | After-sales support, turnkey solutions | Customizable |
| Congo Industrial Solutions (CIS) | Wastewater treatment machine equipment, filter press equipment | Heavy industry, heavy metal removal | 500–8,000 kg/hour |
| WaterTech Africa | Wet process equipment (VillageFlow) | Rural communities, low-cost | 200–1,000 kg/hour |
| CleanFlow DRC | Dry process equipment, compact granulator with dry separator | SMEs, financing options | 300–2,000 kg/hour |
| Congo Water Works (CWW) | Hybrid wet/dry process equipment | Universities, large institutions, international projects | 1,000–5,000 kg/hour |
| Sustainable Water Solutions (SWS) | Water process equipment (solar-powered, eco-friendly) | Remote areas, circular economy | 200–1,500 kg/hour |
The Impact of These Suppliers: Building a Sustainable Future for the DRC
The work of these top 10 suppliers is more than just business—it's a movement toward a healthier, more sustainable Democratic Republic of the Congo. By providing accessible, reliable wastewater treatment solutions, they are directly addressing some of the country's most pressing challenges: reducing waterborne diseases, protecting ecosystems, supporting economic growth, and empowering communities.
In Kinshasa, AquaTreat's plants have cut cholera cases by 40% in treated neighborhoods. In rural Ituri, SWS's solar-powered systems have freed women from hours of water collection, allowing them to pursue education and livelihoods. In mining regions like Kolwezi, CIS's equipment is helping companies meet environmental standards, reducing pollution and improving community relations.
Looking ahead, the demand for wastewater treatment in the DRC will only grow. As urbanization accelerates and industries expand, the need for innovative, affordable solutions will become even more critical. The suppliers profiled here are not just meeting today's needs—they are laying the groundwork for a future where clean water is accessible to all, and wastewater is seen not as a problem, but as a valuable resource.
For businesses, communities, and governments in the DRC, choosing the right wastewater treatment partner is a decision that impacts public health, the environment, and long-term prosperity. With this guide, we hope to make that choice a little easier—because when it comes to water, we all have a stake in getting it right.
