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Purpose-built evaporation systems for Vietnam's food processing, pharmaceutical and industrial wastewater sectors
Ho Chi Minh City Liquid Processing — Waste Heat Evaporator with Multi-Source Integration
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Jiangsu Zongheng Waste Heat Evaporator — Vietnam Market Premium Solution
Understanding the industrial landscape driving evaporation technology adoption across Vietnam's economic hub
Ho Chi Minh City (HCMC), Vietnam's largest commercial and industrial metropolis, has rapidly emerged as one of Southeast Asia's most dynamic manufacturing centers. The city and its surrounding provinces — Binh Duong, Dong Nai, and Long An — form an integrated industrial corridor hosting thousands of factories across food & beverage, pharmaceuticals, chemicals, textiles, and environmental services. As these industries scale up production, demand for high-efficiency liquid concentration and evaporation equipment has grown substantially.
Climbing film evaporators — also known as rising film evaporators or long-tube vertical evaporators — are particularly suited to HCMC's industrial profile. These systems exploit the thermosiphon effect: liquid feed enters at the bottom of vertical tubes, where it is rapidly heated and rises as a thin film, evaporating with exceptional heat-transfer efficiency. For industries that process heat-sensitive liquids, handle large volumes of dilute solutions, or face strict wastewater discharge regulations, climbing evaporators deliver the precise combination of performance and economy that modern Vietnamese factories require.
The food processing sector alone accounts for a significant share of industrial output in HCMC. Sugar refineries along the Saigon River corridor, seafood processing parks in Binh Chanh and Nha Be districts, starch manufacturing plants in Binh Duong, and large-scale fermentation facilities producing MSG, amino acids, and citric acid all rely on evaporation technology to concentrate their products, recover by-products, and treat process water. The shift from conventional single-effect evaporators to modern multi-effect and MVR-based climbing evaporators has delivered dramatic energy savings — reducing steam consumption by 60–80% in many installations.
HCMC hosts over 2,000 registered food manufacturing enterprises. From sugar refining to starch glucose and amino acid production, climbing evaporators are critical for concentrating product streams and recovering valuable by-products efficiently.
Vietnam's pharmaceutical manufacturing base in HCMC and neighboring provinces is expanding rapidly under the government's Pharma 2030 strategy. Climbing evaporators handle solvent recovery, active ingredient concentration, and fermentation broth processing.
Stringent QCVN discharge standards require factories in HCMC's industrial zones to treat high-COD and high-salinity effluents before release. Waste heat evaporators dramatically reduce liquid waste volumes, cutting transport and disposal costs.
Jiangsu Zongheng Concentration & Drying Equipment Co., Ltd.
Founded in 1992 and located in Zhoutie Town, Yixing City on the shores of beautiful Taihu Lake, Jiangsu Zongheng Concentration & Drying Equipment Co., Ltd. (formerly Yixing Yangxi Light Industry Machinery Factory) covers over 54,000 square meters with a production workshop of over 22,000 square meters.
Products are widely used in food fermentation, alcohol, chemical, pharmaceutical, environmental protection, and petrochemical industries — now actively expanding into Ho Chi Minh City and the broader Southeast Asian market.
Key developments reshaping how Ho Chi Minh City factories approach evaporation and liquid concentration
Mechanical Vapor Recompression (MVR) evaporators are rapidly replacing conventional steam-driven multi-effect systems across HCMC's industrial zones. MVR units compress secondary vapor and recycle it as the heating medium, cutting energy consumption to as little as 5–10 kg steam per tonne of evaporation versus 250+ kg for single-effect systems. With Vietnam's electricity and steam costs rising, the ROI on MVR upgrades is increasingly attractive.
HCMC's industrial parks are increasingly mandating waste heat utilization as part of factory environmental certifications. Waste Heat Evaporators from manufacturers like Jiangsu Zongheng capture low-grade thermal energy from boiler flue gases, cooling towers, and process condensates — converting what was once wasted heat into productive evaporative capacity without additional fuel cost.
Vietnam's Ministry of Natural Resources and Environment (MONRE) has progressively tightened wastewater discharge standards for industrial zones. Climbing evaporators are a cornerstone technology in ZLD systems, concentrating high-salinity process waters to the point where solids can be crystallized and recovered, eliminating liquid effluent altogether.
Modern climbing evaporator installations in HCMC increasingly incorporate PLC/SCADA control systems, real-time energy dashboards, and predictive maintenance algorithms. Integrated temperature, pressure, and flow sensors enable engineers to optimize operating parameters on the fly — minimizing downtime and maximizing throughput in Vietnam's demanding tropical climate.
International suppliers serving HCMC are investing in local technical support infrastructure — service engineers, spare-parts warehouses, and Vietnamese-language documentation. Jiangsu Zongheng's export expansion into Southeast Asia includes dedicated post-installation support frameworks that dramatically reduce equipment downtime for Vietnamese industrial clients.
With global supply chain diversification accelerating, multinational food and pharma companies are establishing or expanding production facilities in HCMC. These greenfield investments demand state-of-the-art process equipment from day one — creating strong demand for high-specification climbing and falling film evaporators with internationally recognized certifications such as ASME "U" Stamp and ISO 9001:2015.
Where climbing evaporators deliver measurable impact across HCMC's key industrial sectors
Corn steep liquor concentration, starch sugar evaporation, glucose and fructose syrup production — climbing evaporators handle thin, heat-sensitive streams with minimal color degradation.
Distillate evaporation, alcohol stillage (DDGS) concentration, amino acid and organic acid recovery from fermentation broth — key processes for HCMC's biotechnology corridor.
Fish sauce concentration, fish meal wastewater evaporation, shrimp cooking liquid recovery — HCMC's port districts process thousands of tonnes of seafood daily, generating significant evaporation demand.
Solvent recovery, active pharmaceutical ingredient concentration, and sterile evaporation for injectable product lines operating under GMP compliance within HCMC pharmaceutical parks.
Ammonium sulfate recovery, itaconic acid and threonine concentration, sorbitol and trehalose processing — high-value chemical streams require the precision and reliability that Zongheng systems deliver.
High-salinity and high-COD industrial effluent volume reduction, leachate treatment for HCMC's industrial waste facilities, and ZLD system integration across export processing zones.
Cane juice evaporation across Vietnam's southern sugar mills, molasses concentration, and refinery wastewater management for compliance with national environmental standards.
Caustic soda recovery, sizing agent concentration, and dye bath evaporation for HCMC's large textile manufacturing sector operating in Binh Tan and Tan Binh industrial zones.
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.
Delivering engineered evaporation solutions backed by three decades of industrial manufacturing expertise
When evaluating climbing evaporator suppliers for projects in Ho Chi Minh City and the surrounding industrial provinces, procurement engineers and project managers face a critical decision: balancing initial capital cost against long-term operating efficiency, maintenance burden, and the reliability of technical support in-country.
Jiangsu Zongheng stands apart through a combination of deep process engineering expertise, internationally certified manufacturing quality, and a demonstrated track record serving some of the world's most demanding industrial clients. The company's evaporation systems are engineered for Vietnam's specific challenges — high ambient temperatures, humidity, variable feedstock quality, and the need for minimal operator intervention in facilities where skilled maintenance staff may be limited.
HCMC's tropical climate — with year-round temperatures averaging 28–35°C and relative humidity often exceeding 80% — demands evaporation systems designed with appropriate corrosion protection, condensate management, and thermal insulation specifications. Zongheng's engineering team applies decades of experience in process modeling to correctly size each system for actual operating conditions, accounting for Vietnamese utility supply characteristics, seasonal production variations, and local regulatory requirements.
Key technical advantages for the HCMC market include:
Vietnam's GDP has grown at an average of 6–7% annually over the past decade, with industrial production driving much of that growth. The government's 2021–2030 Industrial Development Strategy explicitly targets expansion in food processing, pharmaceuticals, and green manufacturing — all sectors that depend heavily on reliable evaporation and concentration technology.
For Ho Chi Minh City specifically, the development of new industrial parks in Cu Chi, Binh Chanh, and Nha Be — alongside the upgrading of legacy facilities in older zones like Tan Binh and Binh Tan — represents a substantial pipeline of capital equipment projects over the coming decade. Zongheng's ability to supply large-format equipment (tube bundle dryers up to 1600m², multi-effect evaporators handling tens of thousands of litres per hour) makes it one of the few suppliers capable of serving HCMC's largest industrial clients at full scale.
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.
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