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Our core evaporation systems are purpose-engineered for landfill leachate treatment, combining high thermal efficiency with robust corrosion resistance to handle the most challenging effluent streams.
Landfill leachate is one of the most complex and hazardous liquid waste streams generated in municipal solid waste management. It contains high concentrations of dissolved organic compounds, heavy metals, ammonia nitrogen, chlorides, and persistent organic pollutants. Conventional biological treatment alone is often insufficient to meet increasingly stringent discharge standards.
Effluent evaporators address this challenge by applying thermal evaporation technology to concentrate and reduce leachate volume — in many cases achieving zero liquid discharge (ZLD). The evaporation process separates clean condensate water from concentrated contaminants, dramatically reducing disposal volumes and enabling resource recovery.
Modern systems — including Mechanical Vapor Recompression (MVR), Thermal Vapor Recompression (TVR), and Multi-Effect Evaporation — are designed for continuous, automated operation with minimal energy consumption and maximum uptime in demanding landfill site environments.
The global landfill leachate treatment market is experiencing rapid growth driven by tightening environmental regulations, increasing landfill volumes, and the urgent need for sustainable waste management solutions.
The global leachate treatment market is projected to exceed USD 3.5 billion by 2030, with evaporation-based technologies capturing an increasing share due to their effectiveness with high-strength effluents.
Governments across Asia, Europe, and North America are enforcing stricter discharge limits for COD, ammonia, and heavy metals — making conventional treatment alone non-compliant and driving adoption of evaporative ZLD systems.
MVR evaporators now consume as little as 15–25 kWh per tonne of water evaporated — a 70–80% reduction versus traditional steam evaporation — making them the preferred choice for cost-conscious operators.
China alone has invested heavily in over 2,000 sanitary landfills requiring compliant leachate treatment systems, creating enormous domestic and export demand for industrial-grade evaporators.
The effluent evaporation industry is undergoing rapid technological evolution. Here are the key trends shaping the future of landfill leachate treatment and disposal.
Mechanical Vapor Recompression (MVR) evaporators are rapidly replacing traditional multi-effect systems as the preferred solution for leachate treatment. By recycling latent heat from evaporated vapor, MVR achieves dramatically lower steam consumption — often requiring no external steam input at all — making it the most energy-efficient and cost-effective option for continuous landfill operations.
Modern leachate treatment plants increasingly combine biological processes (MBBR, MBR) with downstream evaporation. This hybrid approach reduces the organic load entering the evaporator, extends equipment lifespan, and improves overall system economics — particularly for mature landfills where leachate composition changes significantly over time.
Next-generation evaporators are equipped with PLC/SCADA control systems, IoT sensors, and AI-driven process optimization. Real-time monitoring of temperature, pressure, conductivity, and flow rates enables predictive maintenance, reduces operator intervention, and ensures consistent compliance with discharge standards — even as leachate composition fluctuates seasonally.
An increasing number of jurisdictions are mandating ZLD for landfill sites, particularly in water-scarce regions. Evaporation systems are uniquely positioned to achieve ZLD by concentrating leachate to a solid or semi-solid residue suitable for secure landfill disposal or further resource recovery — eliminating any liquid discharge to surface water or groundwater.
To address the diverse scale requirements of landfill sites — from small rural facilities to large urban mega-landfills — manufacturers are developing modular, skid-mounted, and containerized evaporator systems. These designs reduce on-site installation time, enable capacity scaling, and allow relocation as landfill operations evolve.
Effluent evaporators are deployed across a wide range of industrial and municipal environments where leachate and high-strength wastewater require advanced treatment and volume reduction.
The primary application: treating highly variable leachate from active and closed MSW landfills. Evaporators handle seasonal fluctuations in leachate volume and composition, consistently producing clean condensate water suitable for reuse or compliant discharge, and concentrated residue for secure disposal.
Hazardous waste landfills generate leachate with extreme contaminant concentrations including heavy metals, solvents, and persistent organic pollutants. Specially designed evaporators with corrosion-resistant materials (titanium, duplex stainless steel) provide reliable treatment while meeting strict hazardous waste disposal regulations.
Industrial landfills receiving waste from chemical, pharmaceutical, and petrochemical sectors produce complex, high-salinity effluents. MVR and multi-effect evaporators are deployed to concentrate these streams, enabling salt recovery, reducing disposal costs, and achieving compliance with industrial discharge standards.
Composting plants and organic waste processing centers generate leachate with high biological oxygen demand and ammonia nitrogen. Evaporation systems concentrate these nutrient-rich streams, which can then be processed into liquid fertilizer — turning a waste disposal problem into a valuable agricultural resource.
Waste-to-energy and incineration facilities produce scrubber water and ash leachate containing chlorides, dioxins, and heavy metals. Evaporative treatment systems provide a reliable, compliant pathway for these challenging effluents, often integrated with flue gas heat recovery to maximize energy efficiency.
Beyond landfill applications, the same evaporation technology is applied to high-COD organic wastewater from pharmaceutical manufacturing, fermentation, and chemical production — demonstrating the versatility of Zongheng's evaporator platforms across environmental and industrial sectors.
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.
Jiangsu Zongheng is always committed to exploration and innovation. 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, organic wastewater, high-salinity wastewater, and landfill leachate treatment.
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.
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. We are capable of providing professional technical support and after-sales service nationwide for our vast user base.
We warmly welcome friends from various industries, both domestic and international, to visit us for cooperation and mutual development!
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.
From MVR systems to multi-effect evaporators, our full product lineup delivers proven solutions for every landfill leachate treatment and industrial effluent disposal challenge.
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!
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