Chemical & Petrochemical Water Treatment Companies

China · 200+ employees

Changzhou Senjie Environmental Equipment Co., Ltd. is a Chinese manufacturer of solid-liquid separation, sludge dewatering and water treatment equipment, based in the Changzhou National Hi-Tech Industrial Development Zone, Jiangsu Province. Founded in 2014, we employ 1,280 people across two plants totalling more than 50,000 m2 and build over 1,000 machines a year. 1. FILTER PRESSES - Membrane (diaphragm) filter press, squeezing pressure up to 2.0 MPa, for the lowest achievable cake moisture - Chamber filter press (recessed plate) for industrial wastewater and mineral slurry - Plate and frame filter press for chemical, pharmaceutical, food, brewery and edible oil filtration - Fully automatic filter press with PLC control, automatic plate shifting, cake discharge and cloth washing - Mining and tailings dewatering presses for dry stacking; laboratory and pilot presses from 1 m2 Filter areas 1-1,500 m2, plate sizes 320x320 mm to 2,000x2,000 mm, filtration pressure 0.6-1.6 MPa, cake thickness 25-40 mm. Frames in carbon steel, SS304 or SS316. 2. MULTI-DISC SCREW PRESS (spiral sludge dewatering machine) Continuous, fully automatic dewatering for municipal and industrial sludge, as an alternative or complement to a filter press. All stainless steel, 17 models from KYDL-131 to KYDL-404, power 0.38-6.8 kW, capacity 5-640 kg DS/h. Low energy and wash-water consumption, low noise, compact footprint, PLC control compatible with dosing and feed systems. 3. SLURRY AND SLUDGE PUMPS - Slurry pumps (AH series) for filter press feeding and abrasive mineral slurry: flow 12.6-1,368 m3/h, head 6-64 m, power 1.5-90 kW, wear-resistant wet end - Progressing cavity (screw) pumps for high-viscosity, high-solids sludge, pulsation-free delivery - Air-operated diaphragm pumps, self-priming and chemically resistant, for slurries and corrosive liquids - Ceramic piston pumps in high-purity ceramic for the most abrasive and chemically aggressive duties 4. INDUSTRIAL WATER PURIFICATION (REVERSE OSMOSIS) SJ-RO025 / SJ-RO05 / SJ-RO1 series RO ultrapure water systems, 0.25-1.0 t/h, pump power 1.1-1.8 kW. Multi-stage pre-filtration plus RO membranes, SUS304/SUS316 wetted parts, PLC monitoring of conductivity, pressure and flow with automatic alarms. Used for laboratory, electronics, pharmaceutical and food process water, and as supporting water for filter press and dewatering lines. 5. CONSUMABLES AND SPARE PARTS Reinforced polypropylene chamber plates and membrane plates, 320x320 mm to 2,000x2,000 mm. Filter cloth in polypropylene, polyester and nylon - monofilament, multifilament, staple and needle felt - cut and finished to fit any brand of press, including food-grade cloth for juice, edible oil and syrup, and heavy-duty cloth for mining concentrate and tailings. 6. COMPLETE SYSTEMS Municipal sludge dewatering lines and turnkey industrial wastewater treatment plants: conditioning and chemical dosing, pH adjustment, coagulation and flocculation, sedimentation or DAF, biological treatment where required, sludge thickening, dewatering by filter press or screw press, cake handling and filtrate return. WHY A MANUFACTURER MATTERS Plates, cloth, presses and screw presses are produced in our own workshops rather than bought in. We quote non-standard plate sizes, supply replacement plates and cloth for other manufacturers' presses, and support a machine for its whole working life. In-house quality inspection centre and more than 30 R&D engineers. HOW WE SIZE A JOB Send us the slurry data - daily volume, dry solids content, particle size, operating temperature and pH, and your target cake moisture - and we return a sized proposal covering machine selection (filter press or screw press), filter area, plate type, cloth selection, feed pump and cycle time. WHERE OUR EQUIPMENT RUNS Municipal sewage sludge dewatering; mining, mineral concentrate and tailings dry stacking; coal slurry; stone, granite and marble cutting slurry; electroplating and surface finishing effluent; chemical and petrochemical; oil and gas; pharmaceutical; food, beverage and brewery; ceramics and kaolin; textile dyeing; pulp and paper; metallurgy and steel; power and new energy; sand and aggregate washing. We export to more than 40 countries. Contact: Lin Cong, Deputy General Manager - lincong@czsenjie.com - +86 181 5173 1332 (WhatsApp same number) - https://czsenjehb.com

China · 200+ employees

Ningbo RXHL Technology Co., Ltd. is a leading high-tech enterprise in China, specializing in the research, production, and sales of advanced membrane materials and components. With a focus on microfiltration, ultrafiltration, nanofiltration, and reverse osmosis technologies, the company serves diverse industries including food and beverage, petrochemicals, and municipal water treatment.

Netherlands · 51-200 employees

Lenntech B.V. specializes in providing tailor-made water treatment solutions, offering a range of services including reverse osmosis, ultrafiltration, and containerized systems. Operating primarily in Europe, they cater to industries such as food and beverage, utilities, and manufacturing, ensuring efficient water reuse and treatment.

China · 51-200 employees · 1 case study

Founded in 2009, Changsha Best Electric Technology Company Limited is a well known Chinese high technology enterprise. It is professionally engaged in the development, manufacturing and marketing of industrial automation drive and motion control products. The core products include low voltage variable frequency drive, water pump control system, solar pump inverter and servo drive. Best Electric is located in Changsha, China. It owns the Changsha Best Electric Industrial Park, which covers an area of 25000 square meters. During years of developing, Best Electric successfully obtains over 40 patents and can provide professional customization service. The systems are mainly used in high-speed pumps and industrial motors. Best Electric insists the mission of “Provide high performance solution; Realize win-win cooperation.” Nowadays, the company keeps rapidly growth worldwide.

India · 51-200 employees

Lexcru Water Tech Pvt. Ltd. specializes in providing comprehensive solutions for domestic and industrial water treatment, including RO components and systems. Based in India, the company serves various industries with advanced filtration and purification technologies, ensuring efficient water management and sustainability.

India · 200+ employees

About MAX FIBER INDIA MAX FIBER INDIA is an Ahmedabad, Gujarat-based manufacturer and supplier of industrial chemical storage tanks, process equipment, piping systems, and corrosion-resistant solutions. The company serves industries including chemical processing, pharmaceuticals, water and wastewater treatment, petrochemicals, food & beverage, textiles, mining, agriculture, pulp & paper, and power generation. The company specializes in HDPE and PP Spiral Tanks, with capacities listed from 0.5 KL to 100 KL, along with FRP Tanks, Pickling Tanks, Spiral Reaction Vessels, PP-FRP Blowers, Pollution Control Systems, HDPE Transportation Tankers, and HDPE/PP/PPRC/PVDF pipes and fittings. Core Product Range HDPE Spiral Tanks PP Spiral Tanks PPH Tanks FRP Tanks PVDF Tanks / PVDF-lined equipment HDPE, PP & FRP Reaction Vessels HDPE & FRP Lining PP + FRP / PPH + FRP Tanks Pickling Tanks Chemical Storage Tanks HDPE Transportation Tankers PP-FRP Blowers Pollution Control Systems HDPE, PP, PPRC & PVDF Pipes and Fittings Manufacturing & Engineering MAX FIBER INDIA focuses particularly on spiral-wound thermoplastic tank technology. Its website states that HDPE/PP Spiral Tanks are designed using advanced spiral winding technology and according to RITA DVS 4.0. The listed HDPE/PP tank range includes customized diameters and lengths, with capacities up to 100 KL. The company also emphasizes customized engineering based on the customer's capacity, chemical service, operating conditions, dimensions, nozzles, manholes, accessories, and installation requirements. International Supply MAX FIBER INDIA positions itself as an Indian manufacturer and exporter serving customers in India and international markets. Based on the company information you've shared, you can strengthen your corporate profile by highlighting your supplied projects/customers in UAE/Dubai, Bahrain, Qatar, Saudi Arabia and South Africa, including your experience supplying tanks to Dubai Municipality.

South Korea · 51-200 employees

Coconut Filter, Inc. specializes in manufacturing high-quality carbon block and adsorbent materials for water treatment applications. Based in South Korea, the company serves various industries, including construction, manufacturing, and utilities, with a focus on innovative filtration technologies and systems.

Spain · 51-200 employees

Chemipol S.A. is a leading manufacturer and supplier of biocides, additives, and specialty chemicals, serving diverse industries such as utilities, manufacturing, and energy production. Based in Spain, Chemipol provides advanced water treatment solutions, including desalination and wastewater treatment technologies, across Europe.

Italy · 51-200 employees · 19 case studies

We produce a comprehensive range of spraying solutions, encompassing everything from small-scale nozzles to large industrial spraying systems. Our diverse product line includes various types of nozzles tailored to meet the specific requirements of every application and customer need. The company was established in Milan in November 1968, focusing on distributing parts and components for fire protection systems. Over time, we expanded our offerings to include a diverse range of industrial sprayers tailored to various applications. In addition to our distribution and manufacturing of fire protection system components and industrial sprayers, we specialize in designing and producing pneumatic spray nozzles for industrial use and tank washing nozzles. Our product line also encompasses a variety of complementary accessories essential for industrial washing, including filters, spray guns, and hoses. Furthermore, we offer ejectors, blower nozzles, swivel joints, and hose clamps to provide comprehensive solutions for our customers' needs. PNR Italia is part of the Tecomec Group and oversees four other affiliated companies to form PNR Company, a consolidated reality with a significant presence on the market.

United States · 51-200 employees · 1 case study

Freytech Inc., headquartered in Miami, Florida (USA), is an environmental technology company specializing in innovative, science-based solutions for the remediation and optimization of air, water, soil, and industrial fluid systems. Since 1996, the company has developed sustainable technologies that improve operational efficiency while supporting decarbonization and environmental stewardship. Its flagship innovation, the Environmental Balance Device (EBD) Technology, is a patented and scientifically validated platform designed to enhance natural bioremediation and biotransformation processes in real time, without the use of electricity, chemicals, filters, membranes, or other consumables. EBD systems operate continuously for more than 15 years with minimal maintenance requirements. Scientific validation includes certification by the Ministry of Science and Innovation of Spain and confirmation as “Safe to Use” by Florida International University (USA). Freytech's technologies are deployed across municipal, industrial, agricultural, and energy sectors throughout Europe, North America, and the Middle East, supporting applications such as: Water and wastewater treatment optimization; Reduction of scaling, corrosion, biofouling, and sludge in pipelines and process equipment; Hard water conditioning and extension of reverse osmosis (RO) membrane life; Greenhouse gas, ammonia, and odor reduction; Soil, groundwater, river, and lake remediation; Agricultural irrigation improvement and soil restoration; Oil and gas infrastructure optimization, including paraffin, asphaltene, and fouling control. Freytech's solutions are designed to help organizations achieve operational excellence and sustainability goals simultaneously by reducing energy consumption, lowering maintenance costs, extending asset life, improving resource efficiency, and supporting ESG and net-zero strategies. EBD installations are highly scalable, can be completed in hours rather than months, and provide an affordable pathway for greenhouse gas mitigation at costs below USD 40 per tCO₂e. Mission: To deliver practical, sustainable, and economically viable technologies that restore environmental balance while enhancing industrial performance, resilience, and long-term competitiveness.

China · 51-200 employees · 1 case study

Ecojoy Environment, founded in 2002, is a National High-tech Enterprise and a Leading Company In China’s Water Treatment Industry, the First Company in China to Propose the Product Concept of Modular Reclaimed Water Plant, Participated in the compilation or served as Chief Editor for Multiple National & Industry Standards on Water Treatment.

Italy · 51-200 employees

We are Vetres, an Italian engineering and manufacturing company with over 30 years of experience in fiberglass reinforced plastic solutions. We design, manufacture, and install custom FRP tanks, pipes, silos, and large-scale storage systems for water, wastewater, industrial, and food-grade applications. Our strength lies in combining solid engineering, high-quality materials, and tailor-made designs to deliver durable, corrosion-resistant solutions. From detailed design to on-site construction and technical support, we work closely with clients to ensure reliable performance across the full lifecycle of every project.

China · 200+ employees

Founded in 2009, Vifluter is a global provider of low-temperature evaporation (LTE) solutions, helping industries reduce wastewater volume. Guided by our vision to "Become a world leader in resource recycling solutions,". Headquartered in China, we have established regional operating platforms and localized offices across the Middle East and Southeast Asia, ensuring rapid responses to our global clientele. Powered by a collaborative workforce of over 300 employees, Vifluter has served over 2,000 corporate clients. Our project operational stability ranks among the highest in the industry, earning widespread trust from global partners through proven product reliability and exceptional service. The Vifluter Vacuum Heat Pump Evaporator & Crystallizer is an advanced, energy-efficient solution engineered for industrial wastewater volume reduction, Zero Liquid Discharge (ZLD), and high-value resource recovery. Operating under deep vacuum conditions (-85 to -95 kPa), the system utilizes low-temperature heat pump technology (37–50°C) to process recalcitrant, high-salinity, and complex hazardous liquid streams (HazWaste) without requiring external steam. Equipped with continuous automated PLC controls, corrosion-resistant metallurgy, and specialized scraper/anti-scaling architectures, it transforms difficult industrial effluents into distilled clean water and reusable crystallized salts.

India · 1-50 employees · 1 case study

Founded in 2009, formerly known as Red Circle Industries (RCI), RCI Aquatech creates custom wastewater solutions based on end users’ requirements, which allow for optimally chosen components resulting in a solution that meets or exceeds customer needs. RCI Aquatech’s wastewater treatment systems combine necessary process technologies to reach required state and federal discharge limits and comply with local regulations. Our systems focus on removal of pollutants such as heavy metals, greases, suspended solids, oils, high salt content, toxic compounds, phosphates and more. Using chemical-physical treatment (coagulation, flocculation, and sedimentation), biological treatment (aerobic and anaerobic) and wet chemical oxidation (persistent or toxic organics). Our expertise comprises the following technologies:  Filtration & softening systems  Physicochemical treatment (coagulation-flocculation)  Membrane filtration (UF & RO)  Ion exchange  Chemical oxidation  Biological treatment  Zero liquid discharge (ZLD) system

Czechia · 51-200 employees

Envites, spol. s r.o. specializes in water treatment solutions, offering engineering, design, and manufacturing services for industrial and municipal water treatment plants. With expertise in advanced filtration and separation technologies, they cater to various industries, including construction, manufacturing, and utilities, across Europe.

Saudi Arabia · 51-200 employees

GI WAAS delivers cutting-edge water and wastewater solutions using advanced nanotechnology and zero total discharge solution sets industry standards. Our mission is to provide smart, sustainable, and decentralized treatment systems. We are committed to circular economy principles and reducing environmental impact. Our holistic approach provides comprehensive, tailor-made solutions that are designed to meet the specific needs of each client

Spain · 51-200 employees

Adiquímica S.A. is a leading water treatment company in Spain, offering comprehensive solutions for industrial water management. With over 40 years of experience, they specialize in advanced treatment technologies and monitoring systems, serving diverse industries such as manufacturing, utilities, and hospitality.

China · 51-200 employees

Yuyao Ruiao Water Purification Equipment Co., Ltd. specializes in manufacturing advanced water purification equipment, serving industries such as construction, manufacturing, and utilities. Based in China, the company provides solutions like reverse osmosis and ultrafiltration for effective water treatment and infrastructure development.

Netherlands · 1-50 employees

BRINE CONSULTING delivers senior-level strategy, technical design, and actionable insight across the full lifecycle of water-related challenges. We support clients with advisory and due diligence, advanced brine management and resource recovery, industrial and municipal water reuse, and MLD/ZLD systems. Our team also leads ESG and climate-resilience strategy, innovation scouting, and international development and PPP advisory. With deep specialization in desalination, brine valorization, circular economy models, and high-impact infrastructure, we help organizations turn water and waste streams into opportunities, providing clear thinking, rapid delivery, and solutions built for real-world results.

United Arab Emirates · freelance

EC Solutions is a specialized consultancy focused on electrochemical technologies for water and wastewater treatment. We believe electrochemical processes, and electrocoagulation in particular, are among the most promising technologies in the water sector today. As a rule of thumb, anything that can be treated with conventional coagulation–flocculation can be pretreated with electrocoagulation, without adding chemicals. That means less chemical handling, lower sludge complexity, and more controllable treatment outcomes. We help industries evaluate, pilot, and implement electrocoagulation as a robust pretreatment or core process for color removal, heavy metals, TSS, emulsified oils, and complex industrial effluents. If you’re dealing with a difficult water challenge and want a cleaner, smarter alternative to chemical treatment, EC Solutions is built for that.