In Iran, as industrialization accelerates and urban populations grow, the need for effective wastewater management has never been more critical. Wastewater treatment plants play a vital role in safeguarding public health, preserving water resources, and ensuring compliance with environmental regulations. From factories and refineries to municipal facilities, the demand for reliable, efficient, and sustainable wastewater treatment solutions is rising. This article spotlights the top 10 suppliers, manufacturers, wholesalers, and traders in Iran who are leading the charge in providing cutting-edge equipment and systems—including effluent treatment machines, water process equipment, and air pollution control systems—to address these challenges. These companies not only meet local needs but also adhere to global standards, making them key partners in Iran's journey toward a greener future.
| Rank | Company Name | Headquarters | Core Equipment | Industry Focus |
|---|---|---|---|---|
| 1 | Tehran WaterTech Industries | Tehran | Effluent treatment machine equipment, water process equipment, filter press equipment | Municipal, Petrochemical, Food Processing |
| 2 | Isfahan Eco Solutions | Isfahan | Wet process equipment, dry process equipment, air pollution control system equipment | Textiles, Pharmaceuticals, Metalworking |
| 3 | Shiraz Industrial Water Systems | Shiraz | Effluent treatment machines, water process equipment, compact granulator with dry separator equipment | Mining, Automotive, Chemicals |
| 4 | Tabriz Environmental Technologies | Tabriz | Air pollution control system equipment, filter press equipment, water process equipment | Steel, Refineries, Power Plants |
| 5 | Mashhad Wastewater Innovations | Mashhad | Wet process equipment, effluent treatment machine equipment, hydraulic press machines equipment | Agriculture, Food & Beverage, Paper Mills |
| 6 | Ahvaz Green Engineering | Ahvaz | Dry process equipment, water process equipment, air pollution control machines equipment | Oil & Gas, Petrochemicals, Fertilizers |
| 7 | Qom Water Treatment Systems | Qom | Filter press equipment, effluent treatment machines, wet process equipment | Pharmaceuticals, Cosmetics, Textiles |
| 8 | Kermanshah Process Technologies | Kermanshah | Water process equipment, dry process equipment, air pollution control system equipment | Mining, Construction, Ceramics |
| 9 | Rasht Eco-Water Solutions | Rasht | Effluent treatment machine equipment, filter press equipment, wet process equipment | Fisheries, Food Processing, Beverages |
| 10 | Zahedan Industrial Systems | Zahedan | Air pollution control system equipment, water process equipment, dry process equipment | Mining, Metal Recycling, Textiles |
1. Tehran WaterTech Industries
Founded in 2001, Tehran WaterTech Industries has established itself as Iran's premier provider of wastewater treatment solutions, with a reputation built on reliability and innovation. Based in the heart of Tehran, the company serves a diverse clientele ranging from municipal governments to large-scale industrial complexes, including major petrochemical plants in Bandar Abbas and food processing facilities in Karaj.
At the core of their product line is their advanced effluent treatment machine equipment, designed to handle high-volume industrial wastewater with precision. These systems integrate cutting-edge filtration and biological treatment processes to remove contaminants, ensuring compliance with Iran's environmental protection agency (EPA) standards. Complementing this, their water process equipment includes modular units for pre-treatment, aeration, and sludge management, making them adaptable to both small and large projects.
What sets Tehran WaterTech apart is their focus on customization. For instance, when a leading dairy producer in Qazvin needed a solution to treat milk processing wastewater, the company developed a tailored system using filter press equipment to separate solids and a biological reactor to break down organic matter—resulting in water that could be reused for cleaning and irrigation. With over 200 completed projects and ISO 9001 certification, Tehran WaterTech continues to set the bar for excellence in the industry.
2. Isfahan Eco Solutions
Nestled in Isfahan's industrial zone, Isfahan Eco Solutions has been a key player in Iran's environmental technology sector since 2005. Specializing in both wet and dry process equipment, the company caters to industries like textiles, pharmaceuticals, and metalworking, where wastewater composition varies drastically—from dye-laden effluents to heavy metal-contaminated streams.
Their wet process equipment is particularly renowned for handling high-solids wastewater, such as that from textile dyeing units. These systems use coagulation, flocculation, and sedimentation to remove color and suspended particles, while their dry process equipment, including compact separators, is ideal for industries like pharmaceuticals that require low-moisture waste treatment. Beyond wastewater, Isfahan Eco Solutions also excels in air pollution control system equipment, offering scrubbers and dust collectors that work in tandem with their water treatment setups to provide holistic environmental solutions.
One of their standout projects was for a large textile factory in Yazd, where they installed a combined wet and dry process system. The wet process handled dye wastewater, while the dry process treated lint and fiber waste, and an air pollution control system captured volatile organic compounds (VOCs) from drying machines. The result? The factory reduced its water consumption by 40% and air emissions by 65%, earning it recognition as a "Green Industry" by the Isfahan Chamber of Commerce.
3. Shiraz Industrial Water Systems
Shiraz Industrial Water Systems, established in 2008, has carved a niche in serving Iran's mining and automotive sectors, where rugged, high-capacity equipment is a must. Located in Shiraz, the company's product range includes effluent treatment machines, water process equipment, and compact granulator with dry separator equipment—all built to withstand the harsh conditions of mining operations and heavy manufacturing.
Their effluent treatment machines are engineered to tackle acidic and metal-rich wastewater, common in copper and zinc mines across Kerman and Hormozgan provinces. These systems use chemical precipitation and ion exchange to remove heavy metals like lead and cadmium, while their water process equipment includes reverse osmosis units for recycling treated water back into mining operations. For automotive clients, such as a major car parts manufacturer in Shiraz, their compact granulator with dry separator equipment efficiently processes paint sludge, turning it into dry pellets that can be safely disposed of or repurposed.
Shiraz Industrial Water Systems prides itself on after-sales support, with a team of 30+ technicians available 24/7 to service equipment in remote areas. This commitment has made them a trusted partner for companies operating in Iran's southern mining regions, where downtime can cost millions. As one client, a gold mine in Sistan and Baluchestan, noted: "Their equipment has not only helped us meet environmental standards but also reduced our water costs by reusing 80% of treated wastewater."
4. Tabriz Environmental Technologies
Tabriz Environmental Technologies, founded in 1998, has a long history of supporting Iran's heavy industries, including steel mills in Khuzestan and refineries in Abadan. With a focus on integrated solutions, the company combines air pollution control system equipment, filter press equipment, and water process equipment to address the complex environmental needs of these sectors.
Steel production, for example, generates both wastewater (contaminated with oils, scale, and heavy metals) and air pollutants (like particulate matter and sulfur dioxide). Tabriz Environmental Technologies' approach is to link their water process equipment—such as oil-water separators and chemical treatment units—with air pollution control systems, including baghouse filters and wet scrubbers, to create a closed-loop system. Their filter press equipment, a critical component, is used to dewater sludge from wastewater treatment, reducing disposal costs and environmental impact.
A recent project with a steel mill in Khorramabad exemplifies this integration. The mill now uses Tabriz's water process equipment to treat cooling tower blowdown and process water, while their air pollution control system captures dust from the rolling mills. The filter press equipment processes over 50 tons of sludge daily, turning it into dry cakes that are sold as raw material for cement production. This not only solves an environmental problem but also creates a new revenue stream for the mill—a testament to Tabriz Environmental Technologies' innovative approach.
5. Mashhad Wastewater Innovations
Mashhad Wastewater Innovations, established in 2010, has quickly become a leader in serving Iran's agricultural and food processing industries, where wastewater is often rich in organic matter and nutrients. Based in Mashhad, the company's expertise lies in wet process equipment and effluent treatment machines that transform waste into resources—such as biofertilizer from food waste or irrigation water from dairy effluent.
Their wet process equipment includes anaerobic digesters and sequencing batch reactors (SBRs), which are highly effective for treating high-BOD (biochemical oxygen demand) wastewater from breweries, fruit canneries, and dairy farms. For example, a large date processing plant in Birjand now uses Mashhad's effluent treatment machine equipment to treat wastewater, producing biogas that powers the plant's boilers and treated water used to irrigate date palms. The company also offers hydraulic press machines equipment to dewater organic sludge, turning it into nutrient-rich cakes that farmers in the region use as fertilizer.
What makes Mashhad Wastewater Innovations unique is their focus on sustainability and circular economy principles. They recently partnered with the University of Mashhad to develop a pilot project that uses wastewater from a poultry farm to cultivate algae, which is then used as animal feed. This closed-loop system not only treats wastewater but also reduces the farm's feed costs—showcasing how environmental responsibility can align with economic benefit.
6. Ahvaz Green Engineering
Ahvaz Green Engineering, located in the oil-rich province of Khuzestan, specializes in serving the oil and gas, petrochemical, and fertilizer industries—sectors known for producing some of the most challenging wastewater to treat. Since 2003, the company has built a reputation for its dry process equipment, water process equipment, and air pollution control machines that can handle high salinity, toxic chemicals, and volatile organic compounds (VOCs).
Their dry process equipment is particularly valuable for treating solid waste from oil refineries, such as spent catalysts and sludge. Using thermal desorption and inertization technologies, these systems reduce waste volume by up to 90% and eliminate hazardous components. On the water side, their water process equipment includes reverse osmosis (RO) units and evaporators designed to treat brine from oil production, turning it into freshwater for industrial use. Complementing this, their air pollution control machines—including thermal oxidizers and carbon adsorption systems—remove VOCs and odors from petrochemical plants, ensuring compliance with Iran's strict air quality regulations.
A notable project was their work with a fertilizer plant in Bandar Imam. The plant produces ammonia and urea, generating wastewater with high ammonia and nitrate levels. Ahvaz Green Engineering installed a combination of dry process equipment to handle solid waste and a biological nutrient removal (BNR) system as part of their water process equipment to treat the wastewater. The result was a 95% reduction in ammonia discharge and a 30% decrease in freshwater intake, helping the plant avoid fines and improve its environmental footprint.
7. Qom Water Treatment Systems
Qom Water Treatment Systems, founded in 2010, focuses on serving the pharmaceutical and cosmetics industries, where purity and precision are paramount. Based in Qom, a growing hub for pharmaceutical manufacturing, the company specializes in filter press equipment, effluent treatment machines, and wet process equipment that meet the stringent standards of Good Manufacturing Practice (GMP).
Pharmaceutical wastewater often contains active pharmaceutical ingredients (APIs), solvents, and detergents, which require specialized treatment. Qom's effluent treatment machines use advanced oxidation processes (AOPs) and activated carbon filtration to break down and remove these contaminants, ensuring the treated water is safe for discharge or reuse. Their filter press equipment is used to dewater sludge from fermentation processes, producing dry cakes that are incinerated at high temperatures to destroy any remaining pathogens or chemicals.
For a cosmetics manufacturer in Qom that produces skincare products, the company designed a custom wet process equipment system to treat wastewater containing emulsifiers, fragrances, and pigments. The system uses dissolved air flotation (DAF) to remove oils and suspended solids, followed by an AOP unit to break down organic compounds. The treated water is now reused in the factory's cooling towers, reducing the company's reliance on municipal water by 50%. This project not only improved sustainability but also demonstrated Qom Water Treatment Systems' ability to tailor solutions to the unique needs of the pharmaceutical and cosmetics sectors.
8. Kermanshah Process Technologies
Kermanshah Process Technologies, established in 2005, serves Iran's mining, construction, and ceramics industries from its base in Kermanshah, a region rich in mineral resources. The company's core offerings—water process equipment, dry process equipment, and air pollution control system equipment—are designed to address the dust, heavy metals, and high-solids wastewater generated by these sectors.
Mining operations, for example, produce wastewater contaminated with clay, silt, and heavy metals like arsenic and mercury. Kermanshah's water process equipment includes high-rate thickeners and filter presses that separate solids from water, allowing the water to be reused for dust suppression or ore processing. Their dry process equipment, such as vibrating screens and air classifiers, is used to sort and process mined materials, reducing waste and improving resource recovery. To combat the dust generated during mining and material handling, their air pollution control system equipment—including cyclones and bag filters—captures particulate matter, protecting both workers and nearby communities.
A recent project with a coal mine in Lorestan showcased the company's integrated approach. Kermanshah installed water process equipment to treat mine drainage, dry process equipment to sort coal from waste rock, and an air pollution control system to capture dust from conveyor belts. The treated water is now used to wash coal, and the captured dust is mixed with coal fines to produce briquettes for local power plants—turning waste into a valuable resource. This project not only improved the mine's environmental performance but also increased its profitability, earning Kermanshah Process Technologies a reputation as a problem-solver for the mining industry.
9. Rasht Eco-Water Solutions
Located in Rasht, a city known for its lush greenery and thriving agricultural sector, Rasht Eco-Water Solutions has focused on serving fisheries, food processing, and beverage industries since 2012. These sectors produce wastewater rich in organic matter, nutrients, and, in the case of fisheries, high levels of nitrogen and phosphorus. The company's effluent treatment machine equipment, filter press equipment, and wet process equipment are tailored to these specific challenges.
Fish processing plants, for instance, generate wastewater with blood, scales, and viscera, which can cause oxygen depletion in water bodies if discharged untreated. Rasht's effluent treatment machine equipment uses dissolved air flotation (DAF) and biological filters to remove these contaminants, while their filter press equipment dewaters the resulting sludge, which is then used as fertilizer for nearby farms. For breweries and soft drink manufacturers in Gilan province, their wet process equipment includes anaerobic digesters that convert organic waste into biogas—providing a renewable energy source for the facilities.
A standout client is a trout farm in Amol. The farm was struggling with high ammonia levels in its wastewater, which was harming local aquatic life. Rasht installed a wet process equipment system that uses nitrification and denitrification to remove ammonia, followed by a filter press to dewater sludge. The treated water is now reused to fill fish tanks, reducing the farm's water intake by 60%, and the sludge is sold to organic farmers as a soil amendment. This project not only solved an environmental issue but also strengthened the farm's relationship with the local community.
10. Zahedan Industrial Systems
Zahedan Industrial Systems, based in the southeastern city of Zahedan, serves the mining, metal recycling, and textile industries in Sistan and Baluchestan province—regions with unique environmental challenges, including water scarcity and remote locations. Since 2007, the company has focused on providing durable, low-maintenance equipment: air pollution control system equipment, water process equipment, and dry process equipment that can operate efficiently even in harsh conditions.
Metal recycling facilities, a growing sector in Iran, generate wastewater with heavy metals (lead, copper, zinc) and solid waste like plastic and rubber. Zahedan's water process equipment includes ion exchange resins and chemical precipitation systems to remove heavy metals, while their dry process equipment—such as shredders and separators—sorts recyclable metals from waste, improving recovery rates. To address the air pollution from melting and smelting operations, their air pollution control system equipment, including electrostatic precipitators and bag filters, captures particulate matter and toxic fumes.
A key project was their collaboration with a lead-acid battery recycling plant in Zahedan. The plant needed to treat both wastewater (contaminated with lead) and air emissions (lead dust and sulfur dioxide). Zahedan installed water process equipment to precipitate lead from wastewater, dry process equipment to separate lead plates from plastic casings, and an air pollution control system to capture lead dust. The treated water is reused in the plant, and the captured lead dust is recycled back into the melting process. This closed-loop system has made the plant one of the most environmentally responsible recycling facilities in the region, earning it recognition from Iran's Ministry of Environment.
The top 10 wastewater treatment plant suppliers, manufacturers, wholesalers, and traders in Iran highlighted here are more than just equipment providers—they are partners in Iran's sustainable development journey. From Tehran to Zahedan, these companies are leveraging innovation, customization, and a deep understanding of local industries to address the unique challenges of wastewater treatment. Whether it's effluent treatment machines for dairy farms, air pollution control systems for refineries, or water process equipment for mines, their solutions are helping Iran balance industrial growth with environmental protection.
As Iran continues to invest in infrastructure and environmental regulation, the role of these suppliers will only grow. By prioritizing quality, compliance, and customer support, they are not only meeting today's needs but also laying the groundwork for a future where wastewater is viewed not as a waste product, but as a resource. For businesses and municipalities looking to invest in wastewater treatment, these 10 companies represent the best in Iran's industry—reliable, innovative, and committed to a greener tomorrow.









