Typical Applications of Low-Temperature Evaporation Equipment in Four Major Industries

I. Cutting Fluid / Machining Industry — Most Demanding & Mature

Treatment Objects

Emulsified fluid, cutting fluid, grinding fluid, cleaning wastewater, release agent wastewater

Application Process

Demulsification pretreatment → Low-temperature heat pump evaporation → Reuse of distilled water → Hazardous waste disposal of concentrated liquid

Core Functions

Wastewater reduction by 90%–95%, greatly cutting hazardous waste disposal costs

Effluent COD ≤ 200 mg/L, reusable for cleaning, cooling, and floor washing

Fully automatic operation, no dedicated personnel required

Solves machining enterprises’ biggest headaches: excessive hazardous waste and high environmental pressure

II. Electroplating / Surface Treatment Industry — Standard for Zero Discharge

Treatment Objects

Electroplating rinse water, phosphating, passivation, anodizing, pickling wastewater

Application Process

Filtration & regulation → Low-temperature vacuum evaporation → Condensate directly returned to rinse tanks

Concentrated liquid collected for outsourcing disposal

Core Functions

Heavy metal rejection rate above 99%, with copper, nickel, chromium, and zinc fully retained in concentrate

Effluent conductivity **≤ 100 μS/cm**, directly reused in production lines

Water recovery rate 90%–95%, easily achieving workshop zero discharge

No chemical sludge, no secondary pollution, passing EIA acceptance in one go

III. Chemical Industry — Dedicated for High-Salinity Wastewater

Treatment Objects

High-salinity wastewater, circulating water concentrate, reactor cleaning water, mother liquor, intermediate wastewater

Application Process

Filtration → Forced-circulation low-temperature evaporation / MVR evaporation → Water reuse → Salt concentration / crystallization

Core Functions

Resistant to high salinity and high COD; handles wastewater unmanageable by biological treatment

No membrane fouling or permanent scaling, ensuring stable continuous operation

MVR for large projects with extremely low power consumption per ton of water

Achieves near-zero discharge and resource reuse in chemical industrial parks

IV. Pharmaceutical / Biochemical Industry — Specialized for Heat-Sensitive & High-COD Wastewater

Treatment Objects

API wastewater, traditional Chinese medicine extraction wastewater, laboratory wastewater, GMP workshop cleaning wastewater

Application Process

Low-temperature vacuum evaporation (35–50°C) → Condensate reuse / discharge → Concentrate reduction

Core Functions

Mild low-temperature evaporation, preserving materials without odor or deterioration

Fully enclosed structure, no exhaust leakage, meeting GMP environmental requirements

High-COD wastewater directly reduced and reused without biological treatment or dosing

Safe, explosion-proof, low-noise, suitable for pharmaceutical clean workshops

One-Sentence Summary (for external presentation)

Cutting Fluid: 90%+ reduction, less hazardous waste, lower costs

Electroplating: Full heavy metal retention, effluent reuse, zero discharge

Chemical: High-salinity resistant, no pipe blockage, solves hard-to-treat wastewater

Pharmaceutical: Low-temperature safe, odorless & stable, compatible with GMP workshops