MVR Falling Film Vacuum Evaporator for Wastewater Treatment | 15-40 kWh/Ton Energy | 6-25 kPa Operation
Price:
100,000USD~1,000,000USD/SET
MOQ:
1 set
Delivery Time:
90 days
Brand:
HANPU
Product Description
Engineer-to-order MVR (Mechanical Vapor Recompression) falling-film vacuum evaporator designed for industrial wastewater treatment. Thin-film boiling under vacuum protects heat-sensitive streams while recompressed vapor duty recycles latent heat to deliver low operating costs, deep concentration, and stable 24/7 operation.
Key Benefits
Energy Efficiency
Electric-driven MVR minimizes fresh steam consumption after start-up
High Recovery Rate
Concentrates high-TDS/COD brines; enables chemical desalination and salt recovery
Product Protection
Low temperature differential falling film limits thermal degradation and foaming
Scaling Control
Optimized temperature control, uniform film distributors, antiscalant dosing, and CIP-ready design
Automated Operation
PLC/HMI recipes, alarms, historian, and remote diagnostics for 24/7 uptime
Process Technology
Secondary vapor is mechanically compressed to raise saturation temperature and reused as the heating medium. Even film distribution over vertical exchangers maintains high heat-transfer coefficients while controlled residence time, pressure, and temperature setpoints deliver predictable concentration with low specific energy consumption.
Materials & Construction
Wetted parts constructed in SS316L/duplex stainless steel (titanium/Hastelloy optional). Drainable layouts, large access for inspection, validated CIP systems, and elastomer selections suited to chlorides, solvents, acids, and alkalis.
Process Flow Overview
- Feed conditioning: Screening/filtration, softening or pH adjustment; antiscalant for calcium/magnesium/silicon control
- MVR falling film evaporation: VFD compressor sets temperature differential; shell vacuum defines boiling point
- Condensate polishing: Filters/RO/activated carbon to meet reuse or discharge specifications
- Crystallization & solids handling: DTB/OSLO or forced circulation crystallizer to centrifuge/dryer for compliant solids discharge
- Automation: Start/stop recipes, load following via VFD, scheduled cleaning windows
Key Components
- Falling-film evaporator body with film distributors and vapor-liquid separator
- MVR mechanical vapor compressor (turbo/Roots) with VFD for temperature/capacity control
- Surface condenser, vacuum/non-condensable gas handling, preheaters/heat-recovery exchangers
- PLC/HMI/SCADA control system; instrumentation with data historian
- CIP skid; antiscalant dosing; optional condensate polishing filters/RO
Performance Specifications
| Parameter | Typical Range |
|---|---|
| Operation Mode | Continuous, 24/7 vacuum duty |
| Electric Consumption (MVR) | 15-40 kWh per ton of water evaporated |
| Fresh Steam Demand | Very low after start-up (backup/ancillary only) |
| Shell Pressure | 6-25 kPa (absolute) |
| Turndown Capability | 50-100% with stable temperature and quality |
| Construction Materials | SS316L / duplex; titanium/Hastelloy available |
Frequently Asked Questions
Can it integrate with existing membrane systems for ZLD?
Yes - RO/NF pre-concentration upstream with MVR + crystallizer downstream is a proven zero liquid discharge configuration.
How is scaling managed on difficult brines?
Pretreatment, optimized film temperature/velocity, antiscalant dosing, and scheduled cleaning based on online fouling indicators.
What condensate quality is achievable?
Low conductivity/TOC suitable for reuse after polishing; quality monitoring ensures compliance with site limits.
Applications
Industrial wastewater concentration, chemical desalination processes, and zero liquid discharge systems for various manufacturing sectors.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiangsu Hanpu Mechanical Technology Co., Ltd
Location
Junmin Road, Huangqiao Industrial Park, Taixing, Jiangsu, China (Mainland)
Contact Person
Jim(General Director)