Below are our core primary systems engineered for rapid integration into Vietnamese manufacturing parks, offering certified EU standard safety, low specific energy consumption, and high resource recovery rates.
Vietnam's accelerated industrialization—driven by massive Foreign Direct Investment (FDI) in provinces such as Bắc Ninh, Bình Dương, Đồng Nai, Hải Phòng, and Long An—has placed unprecedented pressure on local water resources and aquatic ecosystems. As global conglomerates establish mega-manufacturing hubs for electronics, textiles, electroplating, chemical processing, and food production, the Vietnamese Ministry of Natural Resources and Environment (MONRE) has systematically tightened environmental compliance standards.
The enforcement of Decree No. 08/2022/ND-CP detailing articles of the Law on Environmental Protection (LEP 2020) and technical regulations such as QCVN 40:2011/BTNMT (National Technical Regulation on Industrial Wastewater) has transformed industrial water management from a operational luxury into a strict regulatory prerequisite. Industrial zones (IZs) across Vietnam are now legally required to install continuous automated wastewater monitoring systems (CEMS) and strictly cap Total Dissolved Solids (TDS), Chemical Oxygen Demand (COD), heavy metals, and saline discharge rates.
Factories operating in high-salinity industries (e.g., textile dyeing, seafood processing, battery manufacturing, chemical synthesis) face severe operational bottlenecks due to freshwater quota limitations and zero-discharge municipal quotas. Implementing CE-certified High-Salinity Wastewater Treatment & Zero Liquid Discharge (ZLD) systems provides dual advantages: it guarantees absolute compliance with Vietnamese law while reclaiming over 95% of process water for direct facility reuse.
Achieving reliable, cost-effective Zero Liquid Discharge for high-salinity industrial stream requires an integrated, multi-barrier process train designed specifically for complex foulants, high osmotic pressures, and severe scaling risks typical of Vietnamese industrial effluents.
Removes hardness ions ($Ca^{2+}$, $Mg^{2+}$), reactive silica, heavy metals, and suspended solids. Utilizes high-efficiency clarifiers, multi-media filtration, and ceramic Ultrafiltration (UF) to guarantee a Silt Density Index (SDI) < 2.0 prior to membrane concentration.
Incorporates High-Efficiency Reverse Osmosis (HERO) running at elevated pH levels or Disc Tube Reverse Osmosis (DTRO) operating at pressures up to 120 bar. Concentrates brine up to 100,000–150,000 mg/L TDS while keeping scaling potential at near zero.
Mechanical Vapor Recompression (MVR) evaporators recompress secondary steam to drastically reduce thermal energy consumption (<25 kWh/m³). Brine is concentrated to saturation point and converted into solid crystalline salts ($Na_2SO_4$, $NaCl$) via forced-circulation crystallizers.
Technical Specification Matrix: Standard ZLD & High-Salt Units
| Parameter / Feature | Primary RO Water Reuse | High-Pressure DTRO Brine Concentrator | Thermal MVR Crystallizer |
|---|---|---|---|
| Influent TDS Range | 1,000 – 10,000 mg/L | 10,000 – 80,000 mg/L | 80,000 – 250,000+ mg/L |
| Water Recovery Rate | 70% – 85% | 60% – 75% (Cumulative >92%) | 95% – 99% (Total ZLD) |
| Operating Pressure / Temp | 15 – 30 bar / <45°C | 70 – 120 bar / <45°C | Vacuum Evaporation / 70°C – 95°C |
| Membrane / Heat Exchanger Spec | Polyamide Anti-Fouling TFC | DTRO Open-Channel Disc Modules | Titanium (Gr. 2) / Duplex 2205 Heat Exchanger |
| CE Standards Compliance | LVD 2014/35/EU, EMC 2014/30/EU | MD 2006/42/EC, LVD 2014/35/EU | PED 2014/68/EU Pressure Vessel Standards |
Procuring industrial ZLD and water reuse plants from our specialized manufacturing facilities in China gives Vietnamese project developers, general contractors, and MNC factory owners unmatched economic and technical advantages:
Leveraging the Regional Comprehensive Economic Partnership (RCEP), equipment exported from China to Vietnam benefits from zero or near-zero import tariff preferences. Direct overland trucking via Lạng Sơn / Móng Cái or sea freight via Hải Phòng and Cát Lái ports reduces transit lead times to just 3 to 7 days.
We complete 90%+ of piping, wiring, PLC programming, and pre-commissioning testing inside our standardized factory workshops. Pre-built skid systems minimize expensive on-site civil works and shorten installation schedules in Vietnamese industrial zones by up to 60%.
Our equipment strictly complies with European Conformity (CE) directives, including the Pressure Equipment Directive (PED 2014/68/EU), Low Voltage Directive (LVD 2014/35/EU), and Machinery Directive (2006/42/EC), ensuring seamless acceptance by European and global EPC auditors in Vietnam.
Custom-tailored high-salt treatment and zero liquid discharge solutions deployed across Vietnam’s core industrial sectors:
Textile, Dyeing & Industrial Laundries
Key Regions: Bình Dương, Đồng Nai, Nam Định, Long An.
Challenge: Wastewater contains extreme salinity ($Na_2SO_4$, $NaCl$), intense color, COD, and recalcitrant surfactants.
Solution: Ozone/Fenton oxidation + UF + NF/RO membrane splitting. Pure salt recovery for dye bath reuse and >90% water recycling.
Electronics, PCB & Semiconductor Manufacturing
Key Regions: Bắc Ninh, Thái Nguyên, Hải Phòng, HCMC High-Tech Park.
Challenge: Complex heavy metal ions ($Cu^{2+}$, $Ni^{2+}$, $Cr^{6+}$), fluorides, and high conductivity rinsing streams.
Solution: Chelating resin exchange + Two-stage RO + DTRO brine concentration, meeting high-purity recycling standards.
Seafood Processing & Food/Beverage
Key Regions: Cần Thơ, Cà Mau, Tiền Giang (Mekong Delta).
Challenge: High salinity combined with biological nutrients, organic nitrogen, fats, oils, and grease (FOG).
Solution: MBR (Membrane Bioreactor) + High-pressure RO + Ultraviolet (UV) disinfection, providing ultrapure ingredient water.
To eliminate cross-border maintenance concerns, our team provides complete localized engineering lifecycle support tailored to Vietnamese regulations and language requirements:
Our bilingual Vietnamese and Chinese commissioning engineers conduct on-site installation supervision, system testing, hydraulic balancing, and operator training directly at your factory site in Vietnam.
We maintain localized warehouses stocking critical consumables: DTRO membrane discs, RO elements, high-pressure pumps, cartridge filters, anti-scalants, and CIP chemicals for guaranteed 24 to 48-hour delivery within Vietnam.
We assist your local environmental team with complete technical dossiers, system design calculation reports, P&ID drawings, and operational logs required for MONRE environmental licensing inspections.
Explore our complete catalog of industrial membrane equipment, modular desalination units, deoxygenation skids, and high-salinity zero discharge plants engineered for global and Vietnamese industrial procurement.
Optimize Your Water Balance & Guarantee Environmental Compliance in Vietnam
Speak directly with our senior membrane engineers. Submit your raw water analysis and flow requirements today to receive a customized ZLD process proposal, CAPEX/OPEX model, and full technical equipment specification within 24 hours.
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