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As a leading manufacturer in environmental technology, Qingdao Conqinphi Environmental Technology Group is proud to introduce our advanced Low Temperature Vacuum Heat Pump Evaporator with Integrated Salt Crystallizer. Designed specifically for challenging industrial wastewater streams, this system represents a significant leap forward in sustainable water management. Our solution tackles high-salinity and complex wastewater by efficiently separating pure water from dissolved solids, culminating in the recovery of valuable salt crystals. With over eight years of expertise since our establishment in 2015, we engineer systems that not only meet stringent discharge regulations but also transform waste into a potential resource, offering our global clients a reliable and economically sound treatment alternative.
The core of our system lies in its innovative combination of low-temperature vacuum evaporation and heat pump technology. This synergy allows the evaporator to operate at significantly lower temperatures compared to traditional thermal systems. The integrated salt crystallizer is the final stage, designed to precipitate and harvest solid salts from the concentrated brine, achieving near-zero liquid discharge (ZLD) goals. This integrated approach is particularly effective for wastewater containing salts like sodium sulfate, sodium chloride, or mixed inorganic compounds.
Key Product Features & Technical Advantages:
- Exceptional Energy Efficiency: The heat pump cycle recovers and reuses latent heat from the evaporation process, drastically reducing steam or external energy consumption. This can lead to energy savings of up to 60-80% versus conventional multi-effect evaporators.
- Low-Temperature Operation: Operating under vacuum at temperatures typically between 40°C and 70°C minimizes scaling, corrosion, and thermal degradation of sensitive components. It also enhances safety and reduces maintenance demands.
- High Water Recovery Rate: The system is engineered to extract a high percentage of clean, distillate water suitable for reuse within plant processes or safe discharge, maximizing resource recovery.
- Integrated Crystallization: The built-in crystallizer handles the final concentration step, producing dry, free-flowing salt crystals that are easier to handle, transport, or potentially sell, compared to slurry or brine.
- Automated & Stable Operation: Equipped with an advanced PLC-based control system (optional), it ensures stable operation, precise control over concentration ratios, and automatic crystal harvesting cycles, reducing labor intensity.
- Compact & Modular Design: Our manufacturing capability in a 10,000-30,000 sqm facility allows for robust construction and a modular design that can be customized to fit specific flow rates and space constraints.
Technical Specifications Overview:
| Parameter | Typical Range / Description |
| Evaporation Capacity | Customizable from 1 to 100 tons of water per day |
| Operating Pressure | Vacuum environment (e.g., 0.09 - 0.096 MPa abs) |
| Heat Source | Electric-driven mechanical vapor recompression (MVR) heat pump |
| Final Product | High-purity distillate water & crystalline salt solids |
| Material of Construction | 316L stainless steel or higher-grade alloys for corrosion resistance |
| Control Interface | Touchscreen HMI with PLC, offering remote monitoring potential |
Benefits for Your Business:
- Cost Reduction: Slashes wastewater disposal costs and lowers energy bills, improving your operational bottom line.
- Regulatory Compliance: Helps achieve strict environmental discharge standards and facilitates Zero Liquid Discharge (ZLD) compliance.
- Sustainability Leadership: Demonstrates a commitment to circular economy principles by recovering water and minerals.
- Operational Reliability: Built with quality materials and backed by a structured quality management system, ensuring long-term, trouble-free performance.
- Scalability: Systems can be designed to match your current and future wastewater treatment capacity needs.
Trust in Qingdao Conqinphi is built on a solid foundation. Our ISO 9001, ISO 14000, and OHSAS 18001 certifications underscore our commitment to quality, environmental stewardship, and workplace safety. Supported by a dedicated team of 201-300 professionals and an annual export value ranging between US$10-50 Million, we have successfully delivered reliable environmental solutions across diverse markets, including North America, Europe, Southeast Asia, and beyond. This global experience ensures our Low Temperature Vacuum Heat Pump Evaporator is designed to meet international performance expectations. We invite you to leverage our expertise to solve your toughest wastewater challenges efficiently and sustainably. Contact us today for a detailed technical proposal tailored to your specific effluent characteristics and recovery goals.
Frequently Asked Questions (FAQ):
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Q: What types of wastewater are suitable for this evaporator?
A: It is highly effective for inorganic, high-salinity wastewater from industries like pharmaceuticals, chemicals, power plant flue gas desulfurization, landfill leachate, and metal finishing. A water analysis is recommended for evaluation. -
Q: How does the "low temperature" benefit the system?
A: Low temperature operation minimizes scale formation on heat exchanger surfaces, reduces corrosion rates, and lowers energy consumption, leading to lower operating and maintenance costs. -
Q: Can the system handle wastewater with organic contaminants?
A: While excellent for inorganic salts, the system's primary focus is salt crystallization. Wastewater with high organic loads may require pre-treatment. We can advise on integrated treatment schemes. -
Q: What is the quality of the recovered water?
A: The distillate is typically high-purity water with very low conductivity, often suitable for reuse as cooling tower makeup, boiler feed water (with possible polishing), or for other process needs. -
Q: How are the produced salt crystals handled?
A: The integrated crystallizer produces solid crystals that can be automatically discharged into bags or containers. The purity and handling method depend on the feed composition and can be customized. -
Q: Is the system fully automated?
A: Yes, it can be supplied with a high level of automation, including PLC controls for start/stop, concentration control, crystal harvesting, and alarm management, requiring minimal operator intervention. -
Q: What is the typical payback period for such an investment?
A: The payback period varies based on local water/sewer costs, energy prices, and wastewater volume. Typically, significant savings on disposal fees and water reuse can lead to a payback period of 2-4 years. -
Q: Do you provide pilot testing or performance guarantees?
A> We can discuss pilot test arrangements for specific waste streams. Performance guarantees are provided based on agreed feed specifications and design parameters.
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