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Explore our highly efficient thermal separation systems designed to handle complex industrial effluents in Chile.
Understanding the critical water scarcity landscape and the growing need for advanced vacuum distillation technologies.
Chile is currently facing one of the most severe, prolonged droughts in its recorded history. In the northern territories, particularly the hyper-arid Atacama Desert, the scarcity of freshwater has reached critical thresholds. However, this region is also the heart of Chile's copper and lithium mining industries—sectors that traditionally require vast quantities of water for mineral concentration, flotation, and refining processes. As a result, mining operations are under intense pressure to transition to alternative water sources, such as seawater desalination, and to maximize internal recycling rates through Zero Liquid Discharge (ZLD) technologies.
The Chilean Ministry of the Environment (MMA) and the Superintendencia del Medio Ambiente (SMA) enforce strict environmental discharge standards. Decree 90 (D.S. 90) regulates the discharge of liquid waste (Riles - Residuos Industriales Líquidos) into marine and inland surface waters. Non-compliance leads to severe legal penalties, operational shutdowns, and heavy fines. Implementing wastewater vacuum evaporators allows industries to separate clean, reusable water from concentrated hazardous contaminants, ensuring 100% compliance with local discharge limits while minimizing environmental footprint.
Beyond mining, Chile's Central Valley (including Maule, O'Higgins, and Colchagua) is home to globally renowned vineyards and food processing plants. Winery wastewater (Riles vitivinícolas) contains high concentrations of organic matter, polyphenols, suspended solids, and varying pH levels. Traditional biological treatment methods often struggle with seasonal peaks during the harvest (vendimia). Vacuum evaporators offer a robust, compact, and automated solution to concentrate these complex organic streams, recovering pure water that can be reused for equipment washdowns or irrigation, thereby supporting the circular economy.
Energy costs in Chile have historically been high, forcing local industries to demand highly efficient machinery. This makes Mechanical Vapor Recompression (MVR) and Thermal Vapor Recompression (TVR) technologies highly attractive. By utilizing the latent heat of evaporated steam, MVR evaporators consume up to 90% less electricity compared to traditional single-effect thermal evaporators. This efficiency translates directly into lower operating costs (OPEX) for Chilean factories, making sustainable wastewater treatment financially viable.
How our vacuum evaporators solve specific wastewater issues across various Chilean provinces and industries.
In the Antofagasta region, copper smelting and lithium brine extraction generate highly saline, mineral-rich wastewater streams. Our vacuum evaporators are deployed to treat reverse osmosis (RO) reject brine, concentrating the dissolved solids to near-saturation points. This facilitates the recovery of valuable minerals (such as lithium carbonate) while yielding high-purity distillate. The recovered water is immediately fed back into the mining circuit, reducing the reliance on continental groundwater extraction and expensive coastal desalinization pipelines.
Distilleries producing Pisco and wine in northern and central Chile generate high-strength organic wastes, commonly known as vinasses or stillage. These effluents have high Chemical Oxygen Demand (COD) and biochemical oxygen demand (BOD). Our multi-effect and waste heat evaporators efficiently concentrate these vinasses into a thick syrup, which can be repurposed as animal feed or organic fertilizer, while producing clean water that meets irrigation standards.
The Biobío region is the hub of Chile's forestry and paper industry. Pulp mills generate large volumes of black liquor and bleaching effluents containing chlorinated organic compounds and high inorganic salts. Vacuum evaporators play a key role in the chemical recovery cycle of these mills, concentrating the black liquor before combustion in recovery boilers, thus saving energy and closing the chemical loop.
In southern Chile, Puerto Montt and the Chiloé archipelago host extensive aquaculture and fish processing facilities. The process water from fishmeal production ("stickwater" or agua de cola) contains valuable proteins and oils, along with high salt levels. Our vacuum evaporators concentrate this stickwater, allowing processors to recover proteins for fishmeal enrichment and significantly reduce the organic load of the discharged wastewater.
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.
Our commitment to international quality standards, engineering excellence, and safety regulations.
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.
Providing state-of-the-art evaporation and drying solutions for international and domestic industries.
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.
Exporting highly efficient equipment to the Americas, Europe, and Asia.
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 expanding our advanced thermal concentration technologies to Chile and neighboring South American countries. Understanding the local water regulations and industrial requirements allows us to deliver optimized, turn-key evaporation plants that are perfectly customized for Chilean climate conditions and energy structures.
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!
The company currently holds an absolutely leading position in evaporation technology and has extensive cooperation with many renowned large domestic and international group companies.
We collaborate closely with leading enterprises 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.
Comprehensive listing of our advanced evaporation plants optimized for Chilean industrial processes.
