Leave Your Message
Jiangsu Zongheng's core evaporation product lines — purpose-built for high-salinity, high-color textile dye wastewater volume reduction and zero liquid discharge targets.
Utilizes low-grade waste heat from textile dyeing processes to drive evaporation, dramatically reducing operating costs while achieving significant dye wastewater volume reduction.
View Details →
Mechanical Vapor Recompression technology achieves the lowest unit energy consumption available, ideal for large-scale textile dye wastewater ZLD projects with strict discharge standards.
View Details →
Multi-effect evaporation systems designed for continuous, large-volume textile dye wastewater processing, enabling progressive concentration and zero liquid discharge compliance.
View Details →
Thermal Vapor Recompressor systems provide cost-effective steam economy for textile dye wastewater treatment plants targeting high volume reduction ratios and ZLD outcomes.
View Details →🌍 The textile and dyeing industry is one of the world's most water-intensive sectors, generating enormous volumes of highly colored, chemically complex wastewater every day. With tightening environmental regulations across Asia, Europe, and the Americas, Zero Liquid Discharge (ZLD) evaporation technology has rapidly become the industrial standard for sustainable textile wastewater management.
Global textile production exceeds 100 million tonnes annually. Dyeing and finishing operations consume between 50–200 liters of water per kilogram of fabric, producing wastewater rich in reactive dyes, surfactants, heavy metals, and salts. The ZLD evaporator market for textile wastewater is projected to grow at over 8% CAGR through 2030, driven by regulatory pressure and water scarcity in key manufacturing regions including China, India, Bangladesh, and Vietnam.
China's "Water Ten Plan" and increasingly strict GB standards have made zero liquid discharge mandatory for many textile industrial parks. India's CPCB regulations and the EU's Industrial Emissions Directive similarly compel manufacturers to adopt advanced evaporation-based ZLD systems. Non-compliance risks include facility shutdowns, heavy fines, and reputational damage — making investment in ZLD evaporators a business-critical decision.
First-generation multi-effect evaporators have given way to energy-optimized MVR and TVR systems that cut steam consumption by 60–80%. Integration with AI-driven process control, remote monitoring, and predictive maintenance is now emerging as the next frontier. Zongheng's R&D investment ensures our ZLD evaporators remain at the cutting edge of energy efficiency and operational reliability for textile dye wastewater applications.
Modern ZLD evaporator systems don't just eliminate discharge — they enable resource recovery. Concentrated dye salts can be recovered and reused, condensate water (95%+ purity) is recycled back into dyeing processes, and heat recovery systems dramatically reduce the plant's overall energy footprint. This circular economy approach transforms wastewater treatment from a cost center into a value-generating asset.
A systematic, multi-stage process that transforms high-volume dye wastewater into reusable water and manageable solid residue — achieving true zero liquid discharge.
pH adjustment, coagulation, and filtration to remove suspended solids and prepare wastewater for evaporation.
MVR/TVR/Multi-Effect evaporators concentrate the dye wastewater, separating clean condensate from concentrated brine.
High-purity condensate (95%+) is recycled directly back into dyeing and rinsing processes, reducing fresh water intake.
Concentrated brine undergoes crystallization to recover salts and reduce final solid waste volume to a minimum.
Zero liquid effluent discharged. Solids managed for safe disposal or reuse. Full regulatory compliance attained.
Large-scale textile parks with centralized wastewater treatment facilities deploy ZLD evaporators to handle combined dyeing, printing, and finishing effluents — often processing 500–5000 m³/day. Zongheng's multi-effect and MVR systems are designed for this continuous, high-volume duty cycle.
Dye manufacturing plants generate highly concentrated, chemically complex wastewater with COD values exceeding 50,000 mg/L. ZLD evaporators with specially designed heat exchangers and anti-fouling features handle these challenging streams, achieving 90%+ volume reduction before final crystallization.
Smaller batch dyeing operations require flexible, modular ZLD evaporator skids that can adapt to changing dye formulations and production schedules. Waste heat evaporators from Zongheng are particularly well-suited, utilizing existing boiler or process heat to minimize additional energy investment.
Denim production generates wastewater with high indigo dye concentrations and heavy use of reducing agents. ZLD evaporation systems concentrate and recover these streams, enabling dye reuse and ensuring that no colored effluent enters local waterways — a key sustainability credential for global fashion brands.
Manufacturers targeting GOTS, OEKO-TEX, or bluesign® certification must demonstrate zero harmful discharge. ZLD evaporators provide the documented, auditable proof of zero liquid discharge required by these certification bodies, opening access to premium global markets.
Textile dyeing processes, especially those using reactive dyes, require large quantities of salt. ZLD evaporators concentrate the spent dye bath to enable salt crystallization and recovery — turning a waste disposal cost into a recovered resource worth tens of thousands of dollars annually per facility.
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 textile dye wastewater — making the company one of the domestic manufacturers with the most extensive product variety.
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.
In March 2002, the company took the lead in obtaining ISO9001:2015 international quality system certification (Certificate No.: 45021). 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. 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.
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 range of industrial evaporation and ZLD solutions tailored for textile dye wastewater volume reduction and zero discharge compliance.
Leverages process waste heat for energy-efficient dye wastewater evaporation and volume reduction.
Learn More →Mechanical Vapor Recompression for minimal energy consumption in large-scale dye wastewater ZLD systems.
Learn More →Multi-effect evaporation for continuous, high-volume textile dye wastewater processing and ZLD compliance.
Learn More →Thermal Vapor Recompression systems for cost-effective steam economy in textile dye wastewater ZLD plants.
Learn More →Gentle, low-temperature evaporation ideal for heat-sensitive dye wastewater streams requiring ZLD volume reduction.
Learn More →Handles high-viscosity, scaling-prone textile dye wastewater with robust forced circulation design for ZLD applications.
Learn More →Integrated evaporation and crystallization for complete ZLD — recovering salts and achieving zero liquid discharge from textile dye wastewater.
Learn More →Compact, skid-mounted ZLD evaporator units for smaller textile dyeing facilities with flexible production schedules and ZLD requirements.
Learn More →
