Engineer-to-order falling film MVR (Mechanical Vapor Recompression) evaporator for wastewater concentration, chemical desalination, and salt crystallization. Thin-film vacuum boiling protects heat-sensitive streams while MVR recycles latent heat, delivering low OPEX, deep TDS reduction, and continuous, stable operation for ZLD schemes.

• High energy efficiency: Electric-driven vapor recompression minimizes fresh steam after start-up.
• Desalination & crystallization: Drives brine to supersaturation for salt recovery and reduced discharge.
• Low ΔT, high quality: Falling-film duty preserves organics and limits thermal degradation/foaming.
• Scaling mitigation: Optimized ΔT/LMTD and film distributors, antiscalant dosing, CIP-ready design.
• Automated uptime: PLC/HMI recipes, alarms, historian, and remote diagnostics for 24/7 operation.

Secondary vapor is mechanically compressed to elevate saturation temperature and reused as the heating medium. Even film distribution over vertical exchangers maintains high heat-transfer coefficients; controlled residence time and pressure/ΔT setpoints enable predictable desalination and crystallization with low specific energy.

Wetted parts in SS316L/duplex (Ti/Hastelloy optional). Drainable layouts, large access for inspection, validated CIP, and elastomer/material selections per chemistry (chlorides, solvents, acids/alkalis).

• Feed conditioning: screening/filtration, softening or pH trim, antiscalant to control Ca/Mg/Si scaling.
• MVR falling film (vacuum): VFD compressor controls ΔT; shell vacuum defines boiling point.
• Crystallization: seeded growth (DTB/OSLO/FC) for targeted PSD and purity; mother liquor recycle.
• Condensate polishing: filters/RO/AC to meet reuse or discharge limits (conductivity/TOC guard).
• Solids handling/ZLD: centrifuge → dryer → regulated disposal or resource recovery.

• Falling-film evaporator body with film distributors and vapor–liquid separator
• MVR mechanical vapor compressor (turbo/Roots) with VFD for ΔT/capacity control
• Surface condenser, vacuum/NCG handling, preheaters/heat recovery HX
• Crystallizer, centrifuge, dryer; condensate polishing skid
• PLC/HMI/SCADA; instruments (T/P/flow/cond/level); CIP and antiscalant dosing

*Actual performance depends on feed salinity/COD, fouling tendency, compression ratio, and crystallizer design.