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Qingdao Conqinphi Environmental Technology Group Co., Ltd., a leading manufacturer established in 2015, proudly presents our advanced MVR Evaporation Concentration Crystallization Equipment for High-Salinity Wastewater Zero Discharge. With a factory spanning 10,000–30,000 square meters and over 250 dedicated employees, we have delivered reliable wastewater solutions to clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and the domestic market. Our equipment is designed to efficiently treat high-salinity brine streams, recovering clean water while producing solid salt crystals, thus achieving true zero liquid discharge (ZLD). The mechanical vapor recompression (MVR) technology ensures energy consumption as low as 30–70 kWh per ton of evaporated water, significantly reducing operating costs compared to traditional multi-effect evaporation.
Our MVR system integrates evaporation, concentration, and crystallization in one continuous process. It handles feed water with TDS (Total Dissolved Solids) up to 200,000 mg/L or higher, and can reduce the final liquid volume to near zero. The crystallizer section produces separable salt crystals that can be reused or disposed of safely, while the condensed water meets reuse standards (e.g., low energy consumption, compact footprint, fully automatic operation, and minimal chemical usage.
Technical Specifications (Typical)
| Parameter | Specification |
|---|---|
| Evaporation Capacity | 1 – 100 t/h (custom) |
| Feed TDS | Up to 200,000 mg/L (20%) |
| Final Liquid Discharge | |
| Compressor Type | Centrifugal / Roots blower (oil-free) |
| Operating Temperature | 55 – 105 °C (adjustable) |
| Energy Consumption | ~30–70 kWh per ton of evaporated water |
| Material of Construction | SS304 / SS316L / Duplex / Titanium (optional) |
| Recovered Water Quality | Conductivity |
| Salt Crystal Purity | > 95% (adjustable by crystallization conditions) |
Key Features & Advantages
- Energy Efficiency: MVR technology recycles the latent heat of vaporized water, consuming only electrical energy for the compressor. Typical power consumption is 30–70 kWh per ton of evaporation – up to 80% less than conventional falling film or forced circulation systems.
- True Zero Discharge: Combined with a crystallizer, the system reduces wastewater to solid salt crystals and high-purity distillate. No liquid effluent is discharged to the environment, complying with stringent regulations.
- Wide Feed Adaptability: Handles high-salinity, high-hardness, and high-turbidity streams. Anti-scaling and anti-fouling designs (e.g., forced circulation, seeded crystallization) are available for problematic waters.
- Fully Automatic Operation: PLC-based control with touchscreen HMI allows remote monitoring, automatic start/stop, and real-time parameter adjustment. RTU/SCADA integration is supported.
- Robust Construction: All wetted parts are made of corrosion-resistant stainless steel or higher alloys. The compressor, heat exchangers, and piping are designed for long service life with minimal maintenance.
- Modular and Compact Design: Pre-assembled skids reduce on-site installation time. Units can be expanded in parallel for larger capacities.
- Chemical-Free Process: No additional chemicals are required for the MVR evaporation stage, reducing operating costs and secondary pollution.
Typical Applications
Our MVR crystallization equipment is widely used in industries such as:
- Chemical & pharmaceutical wastewater (high salt, high COD)
- Petrochemical & refinery oily brine treatment
- Coal chemical & mine water reuse
- Textile dyeing & printing effluent concentration
- Landfill leachate & RO concentrate minimization
- Food processing (e.g., pickle brine, dairy whey) – optional food-grade materials available
Why Choose Conqinphi?
As a manufacturer with an annual export value exceeding US$10 million, we have delivered hundreds of evaporation and crystallization systems worldwide. Our factory is equipped with advanced CNC machining, automatic welding robots, and strict quality control procedures. We hold multiple certifications including ISO9001, ISO14000, OHSAS18001, HACCP, TL900, QS9000, SA8000, and many others (refer to our full list). Every unit undergoes hydrostatic testing, performance verification, and electrical inspection before dispatch.
Our after-sales team provides on-site commissioning, operator training, and 24/7 technical support. Spare parts (compressor, pumps, valves, etc.) are readily available from our warehouse in Qingdao, ensuring minimal downtime. We also offer customizable solutions: from simple skid-mounted units to complete turnkey ZLD plants.
Contact us today for a free process evaluation and quotation. Let our experienced engineers design an MVR crystallization system that meets your exact wastewater composition, capacity, and discharge targets. With Conqinphi, you not only achieve zero discharge but also reduce energy costs by up to 80% compared to traditional evaporation methods.
Frequently Asked Questions (FAQ)
-
Q1: What is the maximum TDS that your MVR equipment can handle?
A: Our standard design can treat feed water with TDS up to 200,000 mg/L (20%). For higher concentrations, we can integrate forced circulation or special crystallizer designs. -
Q2: What is the typical payback period for this system?
A: It depends on local energy prices, water discharge costs, and salt recovery value. In many cases, the energy savings alone can achieve payback within 2–4 years. -
Q3: Do you offer pilot testing or rental units?
A: Yes, we have mobile pilot units (1–5 t/h) available for on-site trials. Rental and lease options can be discussed. -
Q4: What certifications does your equipment have?
A: Our products are manufactured under ISO9001, ISO14000, OHSAS18001 as minimum. Additional certifications like HACCP, TS16969, or ASME are available upon request. -
Q5: How long does delivery take?
A: Standard modules (10–50 t/h) typically ship within 3–5 months after order confirmation. Large custom projects may take 6–9 months. -
Q6: Can the system handle fluctuating flow rates?
A: Yes, the PLC control can adjust compressor speed and circulation pumps to accommodate ±30% flow variation automatically. -
Q7: What is the guaranteed salt crystal moisture content?
A: With a properly designed crystallizer and centrifuge, the discharged salt moisture is less than 3% by weight. Optional dryer further reduces it to -
Q8: Do you provide spare parts packages?
A: Absolutely. We recommend a 2-year spare parts kit including compressor seal kits, pump mechanical seals, and gaskets. These are kept in stock.
Trust Qingdao Conqinphi – your reliable partner for zero-liquid-discharge solutions. With a factory of 10,000–30,000 m², over 250 employees, and annual export value exceeding US$10 million, we have the capacity and expertise to deliver high-quality MVR evaporation crystallization equipment anywhere in the world.
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