In the modern industrial landscape, water resource management has transitioned from a regulatory compliance obligation to a core strategic imperative. Rapid industrialization, coupled with stringent environmental mandates globally, has accelerated the adoption of Zero Liquid Discharge (ZLD) and Minimal Liquid Discharge (MLD) strategies. At the heart of these sustainable water management systems lies thermal evaporation technology. As a premier China Industrial Wastewater Evaporator Manufacturer & Factory, Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. delivers state-of-the-art thermal separation systems designed to process highly concentrated, high-TDS (Total Dissolved Solids), and hazardous industrial effluents.
Conventional biological and membrane-based wastewater treatment technologies (such as Reverse Osmosis and Nanofiltration) face severe thermodynamic limitations when handling high-salinity streams. As salinity levels exceed 35,000 to 50,000 mg/L TDS, the osmotic pressure required for membrane separation becomes prohibitively high, leading to severe membrane fouling, scaling, and mechanical failure.
Thermal evaporation overcomes these limitations by utilizing phase-change separation. By applying thermal energy, water is vaporized and subsequently condensed as high-purity distillate, leaving behind a highly concentrated slurry or solid crystalline salt cake. This process not only recovers up to 95-98% of high-quality process water for reuse but also isolates contaminants, heavy metals, and valuable byproducts, enabling circular economy practices across chemical, pharmaceutical, agricultural, and metallurgical sectors.
MVR technology represents the pinnacle of thermal efficiency. By utilizing a mechanical compressor (centrifugal fan or roots blower), the system compresses the secondary vapor generated during evaporation. This compression raises the temperature and pressure of the vapor, allowing it to be recycled back as the heating medium for the same evaporator effect. This eliminates the need for fresh live steam during steady-state operation, reducing energy consumption by up to 80% compared to traditional single-effect thermal evaporators.
Ideal for heat-sensitive liquids and low-viscosity applications. The feed liquid is introduced at the top of vertical heating tubes and distributed uniformly to flow downward as a thin, continuous film along the inner tube walls. Evaporation occurs rapidly within the falling film. The short residence time and low temperature difference minimize thermal degradation of organic compounds, making it highly suitable for pharmaceutical, food processing, and starch concentration applications.
Specifically engineered for high-fouling, crystallizing, and highly viscous wastewater streams. The liquid is pumped through the heat exchanger tubes at high velocities (typically 1.5 to 3.0 m/s) to prevent boiling inside the tubes. Boiling and crystallization occur only when the liquid enters the flash separator vessel, where the hydrostatic head is released. This design prevents scaling on the heat transfer surfaces and ensures continuous operation under extreme conditions.
Jiangsu Zongheng operates from Yixing City, Jiangsu Province—the recognized capital of China’s environmental protection and industrial machinery manufacturing cluster. This geographic localization provides unparalleled supply chain advantages. We source premium raw materials, including specialized corrosion-resistant alloys such as Titanium (Gr. 1, Gr. 2), Hastelloy (C276), Duplex Stainless Steel (2205, 2507), and Super Austenitic Stainless Steel (904L), directly from leading domestic mills with full traceability.
Our 54,000-square-meter manufacturing facility, equipped with 22,000 square meters of heavy fabrication workshops, houses advanced automatic welding, plasma cutting, and non-destructive testing (NDT) equipment. By maintaining complete control over the engineering, machining, assembly, and testing phases, we mitigate supply chain bottlenecks, optimize lead times, and deliver cost-efficient, high-performance systems to global markets without compromising quality.
Industrial wastewater characteristics vary significantly by industry and region. Jiangsu Zongheng custom-designs evaporation systems tailored to specific process parameters:
Established as Yixing Yangxi Light Industrial Machinery Factory, covering 15 mu with 45 employees, laying the foundation for thermal separation engineering.
Obtained ISO9001 International Quality Management System Certification, establishing a standardized quality assurance framework.
Recognized as a Jiangsu Provincial High-Tech Enterprise, accelerating R&D in energy-efficient evaporation technologies.
Acquired the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessels.
Authorized with the ASME "U" Stamp, marking the company's entry into high-end global industrial equipment markets.
Upgraded international quality system certifications (Certificate No.: 45021) to align with global engineering standards.
Operating a 54,000 m² facility with over 120 staff, including 3 senior engineers and 20+ specialized engineers, serving global environmental markets.
Jiangsu Zongheng is committed to delivering pressure vessels and thermal equipment that meet the most rigorous international safety and quality standards. Our manufacturing processes are audited and certified to comply with global directives, ensuring seamless integration into international engineering projects.
Contact our engineering team today to receive a customized technical proposal and thermal efficiency analysis for your facility.
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