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Qingdao Conqinphi Environmental Technology Group Co., Ltd. is a professional manufacturer specialized in industrial wastewater treatment solutions since 2015. Our High-Salt Wastewater Treatment Evaporator is specifically engineered for brine concentration in the chemical and petrochemical industries. This advanced system effectively separates salt and other dissolved solids from high-salinity streams, enabling zero liquid discharge (ZLD) and resource recovery. With a factory spanning over 10,000 square meters and an annual export value exceeding US$10 million, we bring reliability and innovation to every project.
Designed to handle challenging brines with TDS up to 300,000 ppm, our evaporator utilizes mechanical vapor recompression (MVR) or multiple-effect evaporation (MEE) technology to minimize energy consumption. The equipment is built from corrosion-resistant alloys such as 316L stainless steel or titanium, ensuring long service life even in aggressive chemical environments. Below are the key technical specifications and performance parameters.
| Model Range | CQE-MVR-10 to CQE-MEE-100 |
| Feed TDS | 50,000 – 300,000 ppm |
| Evaporation Temperature | 60°C – 110°C (adjustable) |
| Energy Consumption | 30 – 80 kWh/ton of water evaporated (MVR) |
| Concentrate Solids | Up to 25% (customizable to 40% with crystallizer) |
| Distillate Quality | Conductivity |
| Control System | PLC + HMI with remote monitoring option |
Key Features and Benefits
- High Energy Efficiency: MVR technology recovers vapor latent heat, reducing operational costs by up to 70% compared to traditional thermal evaporators.
- Corrosion Resistance: Wetted parts are fabricated from titanium, duplex stainless steel, or other high-alloy materials to withstand chloride and acidic conditions.
- Modular Design: Skid-mounted or containerized units allow for quick installation and easy expansion. Suitable for both onshore and offshore petrochemical facilities.
- Zero Liquid Discharge (ZLD): The system can be integrated with a crystallizer to produce dry salt solids, eliminating wastewater discharge and meeting stringent environmental regulations.
- Automated Operation: Fully automated PLC control with touch screen interface minimizes manual intervention. Remote monitoring via SCADA is available upon request.
- Low Maintenance: Self-cleaning design with anti-scaling coating options reduces fouling and extends cleaning intervals.
- Customizable Configurations: We offer tailored solutions for specific brine chemistries, including multi-stage, forced circulation, and falling film evaporators.
Applications
- Chemical industry: treatment of high-salt wastewater from chlor-alkali, dye, pesticide, and synthetic resin production.
- Petrochemical industry: brine concentration from oil & gas produced water, refinery spent caustic, and desalter effluent.
- Pharmaceutical industry: recovery of solvents and concentration of high-salt mother liquors.
- Power generation: concentration of cooling tower blowdown and flue gas desulfurization wastewater.
As a reliable manufacturer with ISO9001, ISO14001, OHSAS18001 certifications and a workforce of over 200 skilled employees, Qingdao Conqinphi has delivered evaporator systems to more than 20 countries across North America, Europe, Asia, and Africa. Our pre-sales engineering team provides free process simulation and pilot testing. With a dedicated after-sales service network and spare parts inventory, we ensure your evaporator operates at peak performance for years. Contact us today for a tailored quote and feasibility study.
Frequently Asked Questions
Q1: What is the maximum salt concentration your evaporator can handle?
A: Our standard design can treat feed water with TDS up to 300,000 ppm. For higher concentrations, a pre-concentration step or custom crystallizer can be added.
Q2: How does MVR technology compare to multiple-effect evaporation?
A: MVR uses a mechanical compressor to recycle vapor energy, achieving lower energy consumption (30-80 kWh/ton). MEE uses multiple boiling stages and is more suitable for lower electrical capacity sites. We recommend the best option based on your utility costs.
Q3: What materials are used for high-chloride brines?
A: For brines with high chloride content, we typically use titanium or 904L stainless steel. For moderate chloride levels, 316L with proper passivation may be sufficient. Our engineers will recommend the most cost-effective alloy.
Q4: Can the evaporator be integrated with existing wastewater treatment plants?
A: Yes, we provide skid-mounted units that can be easily connected to upstream and downstream processes. We also offer integration with reverse osmosis (RO) brine concentrators for hybrid solutions.
Q5: What is the typical delivery time?
A: Standard models are delivered within 12-16 weeks after order. Customized systems may require 20-28 weeks depending on complexity.
Q6: Do you provide on-site installation and commissioning?
A: Yes, our experienced service team can supervise installation and provide commissioning support worldwide. Training for your operators is also included.
Q7: How do you prevent scaling and fouling?
A: We employ anti-scaling geometric designs, periodic flushing, and optional ultrasonic descaling systems. Chemical dosing pumps for antiscalants can be supplied as an optional package.
Q8: What warranties and after-sales support do you offer?
A: We provide a 2-year warranty on mechanical parts and 1 year on electrical components. Spare parts are available from our warehouse in Qingdao, and remote technical support is available 24/7.
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