EN
News
LongHope Low-Temp Vacuum Evaporator vs. Traditional High-Temp Steam Technology: In-Depth Comparison for Global Trade
In the global industrial wastewater zero liquid discharge (ZLD) sector, technology selection directly impacts operational costs, compliance, and ROI. Wuxi LongHope Environmental— a national high-tech enterprise—offers an electric-driven low-temperature vacuum evaporator tailored for international trade. It outperforms traditional high-temperature steam compression technology with 35℃ gentle operation, 80%+ cost savings, and full automation, becoming a trusted choice for global clients.
1. Core Technical Differences
LongHope Low-Temp Vacuum Evaporation Technology
Powered by 380V industrial electricity, it abandons fossil fuels and boilers, adapting to global power grids. By creating a -95~-97KPa vacuum, it lowers wastewater boiling point to 35℃, enabling gentle evaporation without material degradation. Equipped with Danfoss compressors, Siemens PLC, and proprietary technologies like atomized liquid distribution and CIP auto-cleaning, it realizes 100% automatic operation with remote monitoring.
Traditional High-Temp Steam Compression Technology
Relies on fossil fuels/electric boilers to generate 80-100℃ steam for direct heating. Requires supporting equipment like steam compressors and exhaust treatment systems. The multi-stage energy conversion causes significant losses, while high temperatures trigger corrosion, scaling, and material deterioration, increasing maintenance costs.
2. Key Performance Parameters: Data-Driven Core Comparison
Comparison Dimension |
LongHope Low-Temp Vacuum Evaporator |
Traditional High-Temp Steam Compression Technology |
Energy Type |
Pure electric drive, no additional energy dependence |
Fossil fuels (coal/gas) + compressor power consumption, boiler mandatory |
Operating Temperature |
35℃ (gentle and safe, no risk of material degradation) |
80-100℃ (high loss, high corrosion, high scaling) |
Cost per Ton of Wastewater Treatment |
$12-15 (based on $0.15/kW·h electricity), cost reduced by over 80% |
$400-450/ton, significantly affected by fossil energy price fluctuations |
Specific Energy Consumption |
60-100W/L, industry-leading energy efficiency |
Equivalent energy consumption ≥500W/L, 5 times higher than LongHope’s technology |
Floor Space |
Integrated design, minimum size 3.0×0.9×2.8m, space-saving |
Dispersed multi-component layout, 3-5 times the floor space of LongHope’s product |
Installation Cycle |
15-20 days (prefabricated production, plug-and-play with water and electricity) |
3-6 months (including boiler approval, pipeline laying, and system commissioning) |
Annual Maintenance Cost |
$750/unit (CIP automatic cleaning, minimal scaling and wear) |
$3,000-$4,500/unit (frequent descaling, parts replacement, and corrosion repair) |
Automation Level |
Full-process automation, remote monitoring, unattended operation |
Basic PLC automatic control, requiring 24/7 on-site personnel, high labor costs |
Environmental Performance |
No waste gas or solid emissions; 95% condensate recovery (COD≤350mg/L), directly reusable |
Emits SO₂, NOₓ and other waste gases, requiring additional exhaust gas treatment equipment, high compliance risks |
Material Adaptability |
Suitable for high-salt, high-concentration, and temperature-sensitive materials (pharmaceutical mother liquor, food waste liquid, etc.), wide applicability |
High temperature causes material degradation, prone to hard scaling in high-salt wastewater, poor adaptability |
Treatment Capacity Range |
45L/h-3335L/h (1.08t/d-80t/d), customizable |
Limited scalability, mainly for large-scale fixed-capacity projects, low flexibility |
Investment Payback Period |
As short as 200 days (5t/d project), high return efficiency |
18-36 months, slow investment return |
Compliance Certifications |
ISO9001, CE certifications; over 60 national invention/utility model patents |
18-36 months, slow investment return |
3. Core Advantages for Global Markets
- Cost Efficiency: With a COP value ≥9.5 (Trane certified), it consumes 1/5-1/8 of traditional technology’s energy. A 5t/d project saves over $660,000 annually, with stable costs unaffected by fossil fuel price swings.
- Easy Cross-Border Maintenance: Integrated design with globally available parts ensures 8,000+ hours of continuous operation. Low-temperature operation and CIP auto-cleaning reduce scaling, simplifying maintenance for overseas clients.
- Global Compliance: Meets international environmental standards with ISO9001 and CE certifications. No emissions, recyclable crystallized salt (moisture <15%), and reusable condensate help clients pass local inspections.
- Versatile Adaptability: Suitable for electroplating, landfill leachate, pharmaceuticals, and more. Its compact size and 15-20 day installation fit overseas small-to-medium factories, industrial parks, and pilot projects.
4. Global Support & Cooperation
LongHope serves 2,00+ global clients including BYD, mindray, and ANSTEEL. Backed by strong R&D and patents, it provides comprehensive cross-border services:
- Remote consultation and customized solutions based on water quality data;
- Free water sample testing with English reports and video demonstrations;
- On-time delivery within 90 days via professional logistics;
- English manuals and 2-hour rapid after-sales response.
If you’re troubled by high costs and inefficiency of traditional technology, contact us for free technical advice and customized ZLD solutions!