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Our core product range is purpose-built for Swedish industrial and environmental compliance needs — delivering low-energy, high-efficiency wastewater volume reduction.
Sweden's industrial landscape demands world-class environmental performance. Discover how vacuum evaporation technology is reshaping wastewater management across Sweden's key sectors.
Sweden is globally recognized as one of the most environmentally progressive nations, with its industrial sector operating under some of the world's most stringent wastewater discharge regulations. The Swedish Environmental Protection Agency (Naturvårdsverket) enforces strict limits on industrial effluent, compelling manufacturers across pharmaceuticals, food processing, paper & pulp, metal finishing, and chemical production to invest in advanced wastewater treatment technologies.
The paper and pulp industry — one of Sweden's largest industrial sectors — generates enormous volumes of process wastewater containing dissolved organics, lignin, and suspended solids. Companies such as SCA, Holmen, and Billerud operate large mills where vacuum evaporation systems are critical for concentrating black liquor and recovering valuable by-products, while simultaneously reducing the volume of effluent requiring further treatment.
Sweden's pharmaceutical and biotech cluster, concentrated around Stockholm, Gothenburg, and Malmö, produces complex wastewater streams containing active pharmaceutical ingredients (APIs), solvents, and fermentation by-products. Wastewater vacuum evaporators provide these facilities with a compliant, energy-efficient method for volume reduction and solvent recovery — aligning with Sweden's circular economy ambitions.
Sweden aims for a fully circular economy by 2045, with zero net greenhouse gas emissions. Vacuum evaporation technology directly supports this goal by enabling water reuse, resource recovery, and dramatic reductions in wastewater disposal costs across all industrial sectors.
Sweden's evolving regulatory environment, energy transition, and circular economy goals are creating unprecedented demand for advanced vacuum evaporation solutions.
Mechanical Vapor Recompression (MVR) evaporators are gaining rapid adoption in Sweden due to their exceptional energy efficiency — consuming up to 95% less steam than conventional multi-effect systems. With Sweden's industrial electricity increasingly sourced from renewable hydropower and wind, MVR systems align perfectly with Sweden's low-carbon industrial strategy and help facilities meet EU ETS carbon reduction obligations.
Sweden's water protection legislation, aligned with the EU Water Framework Directive, is pushing industrial operators toward Zero Liquid Discharge solutions. Vacuum evaporators are the cornerstone technology enabling ZLD — concentrating wastewater to a near-solid residue while recovering high-quality distillate water for process reuse. This trend is particularly strong in Sweden's mining, surface treatment, and chemical manufacturing sectors.
Swedish industrial operators are at the forefront of Industry 4.0 adoption. Modern wastewater vacuum evaporators are now equipped with PLC/SCADA control systems, IoT-enabled remote monitoring, predictive maintenance algorithms, and energy optimization software — all of which integrate seamlessly with the digital manufacturing ecosystems prevalent in Swedish factories and processing plants.
Sweden's national circular economy strategy incentivizes industries to recover and reuse materials from waste streams. Vacuum evaporators enable the recovery of valuable compounds — including ammonium sulfate, organic acids, and specialty chemicals — from concentrated wastewater, transforming what was once a disposal cost into a revenue-generating by-product stream.
The Swedish Environmental Code (Miljöbalken) and EU Industrial Emissions Directive impose strict limits on COD, BOD, heavy metals, and nitrogen in industrial discharges. Vacuum evaporation systems provide a proven, reliable method to achieve compliance — reducing pollutant loads by concentrating contaminants into manageable residues while producing clean condensate water.
Sweden's life sciences sector — home to AstraZeneca, Recipharm, and numerous biotech innovators — is expanding rapidly. These facilities generate complex, high-value wastewater streams requiring specialized vacuum evaporation solutions capable of handling heat-sensitive compounds, maintaining sterility, and recovering solvents for reuse — all while meeting GMP and environmental compliance requirements.
Our wastewater vacuum evaporators are engineered to address the specific process challenges and regulatory requirements encountered across Sweden's diverse industrial landscape.
Concentration of black liquor, evaporation of kraft process effluents, and recovery of sodium compounds at major Swedish mills operated by SCA, Holmen, and Billerud.
Solvent recovery, API wastewater concentration, and fermentation broth processing for Sweden's leading life sciences companies in Stockholm and Gothenburg corridors.
Concentration of stillage, corn steep liquor, dairy effluents, and brewery wastewater — enabling Swedish food producers to recover nutrients and reduce disposal volumes.
Treatment of rinse water, pickling baths, and electroplating effluents containing heavy metals and acids — achieving ZLD compliance for Swedish metalworking facilities.
Concentration of high-salinity wastewater, recovery of organic solvents, and treatment of complex chemical effluents from Sweden's specialty chemical producers.
Treatment of acid mine drainage, concentration of leachate, and processing of mineral processing wastewater from Sweden's northern mining operations in Kiruna and Gällivare.
Sweden's emerging battery manufacturing sector (Northvolt) generates lithium-rich process wastewater requiring specialized vacuum evaporation for lithium recovery and ZLD compliance.
Treatment of landfill leachate and municipal sludge filtrate — a growing application as Swedish municipalities seek advanced solutions to meet EU Urban Wastewater Treatment Directive updates.
We combine 30+ years of manufacturing excellence with deep understanding of Sweden's regulatory, environmental, and operational requirements.
Our equipment holds ASME "U" Stamp authorization and ISO9001:2015 certification — meeting the international quality and pressure vessel standards required by Swedish engineering procurement teams and regulatory authorities.
Our Mechanical Vapor Recompression (MVR) systems deliver the lowest unit energy consumption in the industry — critical for Swedish facilities operating under EU ETS carbon pricing and Sweden's high industrial energy efficiency standards.
We engineer bespoke vacuum evaporation solutions tailored to each client's specific wastewater composition, flow rates, and compliance targets — whether handling pharmaceutical effluents, food processing waste, or high-salinity industrial streams.
Our DDGS alcohol equipment and tube bundle dryer series have been successfully exported to Russia and Southeast Asian markets, demonstrating our capability to deliver and commission equipment internationally with full technical support.
Jiangsu Zongheng Concentration & Drying Equipment Co., Ltd.
Jiangsu Zongheng Concentration & Drying Equipment Co., Ltd. (formerly Yixing Yangxi Light Industry Machinery Factory), founded in 1992, is located in Zhoutie Town, Yixing City, on the shores of the beautiful Taihu Lake. The company covers an area of over 54,000 square meters, with a production workshop area of over 22,000 square meters.
Jiangsu Zongheng is a modern high-tech enterprise specializing in the manufacturing of concentration, drying, starch industry, alcohol DDGS, and Category III medium & low-pressure vessel equipment. It is currently a member enterprise of the China Starch and Alcohol Association. Its products are widely used in industries such as food fermentation, alcohol, chemical, pharmaceutical, environmental protection, and petrochemical.
The company's other main products include Tube Bundle Dryers, with design and manufacturing capabilities reaching 1600m² (making it a primary manufacturer of large tube bundle dryers). Other main products such as Single Screw Fiber & Germ Dehydrators and Wash Cyclones are recognized as high-quality products by starch manufacturers and the industry. High-quality products and a sincere service attitude have won consistent praise and trust from numerous users at home and abroad, fully demonstrating the company's first-class technical advantages and manufacturing capabilities for large-scale equipment.
Jiangsu Zongheng is always committed to exploration and innovation. Through years of sincere effort and user support, it has achieved sustained development. Main products include evaporation plants, comprising Multi-Effect Evaporators, Thermal Vapor Recompressors (TVR), Waste Heat Evaporators, and Mechanical Vapor Recompressors (MVR, achieving minimal unit energy consumption). These are widely used for liquid concentration, including distillates, alcohol stillage, ammonium sulfate, corn steep liquor, itaconic acid, threonine, starch sugar, sorbitol, glucose, fructose, trehalose, erythritol, organic wastewater, high-salinity wastewater, etc., making the company one of the domestic manufacturers with the most extensive product variety.
In March 2002, the company took the lead in obtaining ISO9001:2015 international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards. In July 2007, it became a Jiangsu Provincial High-Tech Enterprise. In April 2009, the company obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42). In August 2012, it acquired the ASME "U" Stamp authorization, marking the company's entry into a new phase of development. The company possesses strong R&D capabilities and advanced manufacturing processes, currently employing over 3 senior engineers and more than 20 engineers and assistant engineers. Multiple innovative technologies have been patented, and many products hold leading positions domestically.
The company currently holds an absolutely leading position in evaporation technology and has extensive cooperation with many renowned large domestic group companies, including Zhuofeng Biology, Meihua Group, Yufeng Group, Yihai Kerry, North China Pharmaceutical Group, Harbin Pharmaceutical Group, Shouguang Juneng, Qilu Pharmaceutical, Qiyuan Pharmaceutical, Xiwang Group, Shengtai Biology, Zhejiang Huakang, Kelun Pharmaceutical (Yili), and Shandong Tianli.
While meeting domestic market demand, the company's DDGS alcohol equipment and tube bundle dryer series products have been exported to Russia and Southeast Asian markets. Now, we are proud to extend our proven expertise to the Swedish market — offering Swedish industrial operators access to world-class vacuum evaporation technology backed by decades of engineering excellence.
We are capable of providing professional technical support and after-sales service nationwide for our vast user base. High-quality products and their unique solutions not only enhance our corporate economic benefits but also bring us satisfaction by solving processing challenges for our clients.
We warmly welcome friends from various industries, both domestic and international, to visit us for cooperation and mutual development!
Explore our full portfolio of vacuum evaporation and waste heat recovery solutions — each engineered to meet the demanding performance and compliance standards of Swedish industrial operations.
Contact our international team today to discuss your specific wastewater treatment challenges, request a technical proposal, or arrange a factory visit. We are ready to deliver world-class evaporation solutions to the Swedish market.
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