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Help CenterMVR ZLD Evaporator for Chemical Plant Zero Discharge of Industrial Effluent
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As a leading manufacturer based in Qingdao, China, Qingdao Conqinphi Environmental Technology Group Co., Ltd. has been dedicated to providing advanced water treatment solutions since 2015. Our MVR ZLD Evaporator is specifically engineered for chemical plants requiring zero liquid discharge (ZLD) of industrial effluent. By combining mechanical vapor recompression technology with robust process design, this system recovers high-quality distillate while concentrating waste to near dryness, minimizing environmental footprint and operational costs. With a factory exceeding 10,000 square meters and a team of over 200 experienced professionals, we deliver reliable, customized solutions to clients across North America, Europe, Asia, and beyond.
The MVR (Mechanical Vapor Recompression) principle is the heart of our evaporator. Unlike conventional thermal evaporators, MVR uses a compressor to raise the pressure and temperature of the vapor generated from boiling, then reuses that compressed vapor as the heating medium. This dramatically reduces energy consumption—typically by 60-80% compared to single-effect evaporation—and lowers operating expenses. Our ZLD evaporator is designed to handle challenging effluents with high salinity, scaling potential, and organic contaminants commonly found in chemical plants.
- Zero Liquid Discharge Capability: Achieves complete elimination of liquid waste, recovering up to 95% of water as condensate for reuse, while the concentrated brine can be further processed into solid salt or disposed of responsibly.
- Energy Efficiency: MVR technology reduces steam consumption by up to 80% compared to traditional multi-effect evaporators. Only moderate electrical power is required for the compressor.
- Robust Construction: All wetted parts are made from corrosion-resistant materials such as stainless steel 316L or duplex, with optional lining for aggressive chemicals.
- Automated Operation: PLC-based control system with HMI touchscreen allows real-time monitoring of temperature, pressure, flow rates, and conductivity. Remote access and alarm notifications are available.
- Compact Footprint: Skid-mounted design reduces installation time and space requirements. The system can be delivered pre-assembled and tested for quick commissioning.
- Flexible Configuration: Options include falling film, forced circulation, or hybrid configurations depending on the effluent characteristics. Anti-scaling and anti-fouling measures are integrated.
- Compliance with Stringent Standards: Our manufacturing processes adhere to ISO9001, ISO14000, and OHSAS18001 certifications, ensuring quality and safety.
Below are typical technical parameters for our MVR ZLD Evaporator (customizable per project):
| Parameter | Specification |
|---|---|
| Evaporation Capacity | 10 – 500 m³/day (customizable) |
| Power Consumption | 30 – 150 kWh/m³ removed (depending on TDS) |
| Operating Temperature | 70 – 105 °C (adjustable) |
| Compressor Type | Centrifugal / Roots blower (optional) |
| Material of Construction | SS316L, Duplex, or custom alloy |
| Control System | PLC + HMI (Siemens, Allen-Bradley, etc.) |
| Distillate Quality | Conductivity |
Why choose our MVR ZLD Evaporator for your chemical plant? The system is designed to handle high TDS brines, scaling minerals, and variable flow rates. The use of advanced anti-scaling technology (e.g., seeded slurry or inhibitor dosing) ensures long-term stable operation. Additionally, the modular design allows for easy expansion if production needs increase. Our team provides comprehensive technical support, from site assessment and pilot testing to installation supervision and after-sales maintenance.
With an annual export value exceeding US$10 million and a global presence in over 30 countries, Qingdao Conqinphi Environmental Technology Group Co., Ltd. has a proven track record. Our factory spans 10,000 to 30,000 square meters, equipped with modern fabrication facilities and quality control labs. We hold multiple certifications including ISO9001, ISO14000, OHSAS18001, and others (TL900, QS9000, SA8000, etc.), reflecting our commitment to quality, environment, and social responsibility. Over 200 dedicated employees ensure that every product meets the highest standards. We are ready to provide a customized solution for your zero-discharge challenges—contact us to discuss your specific effluent composition and required capacity.
Frequently Asked Questions
Q1: What types of industrial effluent can this MVR ZLD evaporator treat?
A: It is designed for chemical plant wastewater with high salinity, including brines, process streams, and side streams. It can handle TDS up to 200,000 mg/L or more, depending on the evaporation configuration. However, a pilot test is recommended for complex or unknown effluents.
Q2: What is the difference between MVR and conventional multi-effect evaporation?
A: MVR uses a mechanical compressor to recycle vapor, significantly reducing energy consumption (typically 60-80% less than single-effect). Multi-effect uses multiple stages with decreasing pressure, but still requires external steam. MVR is more suitable for sites with cheap electricity or where steam is not available.
Q3: How do you prevent scaling in the evaporator?
A: We incorporate several anti-scaling strategies: (1) Forced circulation design to maintain high velocity and prevent deposition; (2) Optional seeding or dosing of antiscalants; (3) Regular CIP (clean-in-place) system; (4) Use of scraped surface or falling film configurations for specific applications. The best approach is determined during the design phase based on your effluent analysis.
Q4: What is the typical payback period for such a system?
A: Payback depends on factors like effluent volume, energy costs, water reuse value, and disposal costs. Typically, clients see a payback within 2-4 years due to savings in water purchase, wastewater discharge fees, and reduced energy consumption vs. thermal evaporators. We can provide a detailed economic analysis based on your data.
Q5: Can you customize the system to fit a specific plant layout?
A: Absolutely. Our evaporators are modular and skid-mounted, allowing for flexible installation. We can design the system to fit within existing footprint constraints, whether indoors or outdoors. The control panel can be remote or integrated, and piping connections are customized to match your existing infrastructure.
Q6: What certifications does your company hold for the evaporator?
A: Our company is certified under ISO9001 (quality management), ISO14000 (environmental management), OHSAS18001 (occupational health and safety), and others. We also comply with international standards for pressure vessels (e.g., ASME, CE, PED) upon request. Specific certifications can be provided for the project as needed.
Q7: Do you provide pilot testing before purchase?
A: Yes, we offer pilot-scale testing using a mobile MVR unit to process a representative sample of your effluent. This validation ensures the design is optimized for your specific chemistry, preventing operational issues. Pilot testing can be performed at our facility or on-site, subject to arrangement.
Q8: What is the lead time for delivery and installation?
A: Typical lead time is 12-16 weeks from order confirmation, depending on customization complexity. Installation and commissioning can be completed within 2-4 weeks on-site, with our experienced engineers providing full support. We also offer training for your operators.
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