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Help CenterVacuum Evaporation Crystallizer for Wastewater Treatment 304 SS 5kW Heating Power
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As a leading manufacturer in environmental technology, Qingdao Conqinphi Environmental Technology Group Co., Ltd. (established 2015, with a 10,000-30,000 m² factory and 201-300 employees) proudly presents our Vacuum Evaporation Crystallizer for Wastewater Treatment — constructed from premium 304 Stainless Steel and equipped with a powerful 5kW heating system. This advanced solution is designed to efficiently separate and concentrate wastewater streams, recovering valuable byproducts and significantly reducing liquid waste volume. Engineered for reliability and energy savings, it meets the rigorous demands of industrial wastewater treatment across multiple sectors.
Our crystallizer operates under vacuum conditions to lower the boiling point of the liquid, enabling gentle evaporation and crystallization of dissolved solids. The 304 SS construction ensures excellent corrosion resistance and long service life even in harsh chemical environments. With a 5kW heating power, it provides rapid heat transfer and stable operation, making it ideal for treating high-salinity wastewater, industrial effluents, and process streams. The equipment is fully customizable to match your specific volume, concentration, and space requirements.
Below we outline the key features, technical specifications, and benefits. For detailed parameters, please refer to the table.
Key Features & Advantages
- 304 Stainless Steel Construction — Excellent corrosion resistance against acids, alkalis, and saline solutions, ensuring durability and low maintenance.
- 5kW Electrical Heating Power — Provides consistent and controllable heat input, enabling efficient evaporation even under fluctuating feed conditions.
- Vacuum Operation — Lowers boiling point by 20–40°C, reducing energy consumption and preventing thermal degradation of sensitive compounds.
- Modular & Compact Design — Space-saving footprint, easy to integrate into existing wastewater treatment lines.
- PLC Automatic Control — Touchscreen interface with real-time monitoring of temperature, pressure, liquid level, and crystallization progress. Minimal operator intervention required.
- Energy Recovery Option — Optional vapor compressor or heat exchanger for further energy savings (customizable).
- Scalable Capacity — Available in different evaporation rates; our engineering team can tailor the system to your daily wastewater volume.
- Low Operating Cost — High thermal efficiency, reduced chemical consumption, and automatic cleaning cycles lower overall expenses.
Technical Specifications
| Parameter | Value |
|---|---|
| Material of Construction | 304 Stainless Steel (SS304) |
| Heating Power | 5 kW |
| Heating Method | Electric (resistance heaters) |
| Operating Vacuum Level | -0.08 to -0.095 MPa (adjustable) |
| Evaporation Temperature | 40–80°C (depending on vacuum) |
| Feed Inlet/Outlet | DN25 / DN40 (customizable) |
| Control System | PLC + HMI touch screen |
| Power Supply | 380V / 50Hz (3-phase) or as required |
| Cooling Water Consumption | Approx. 1.5 m³/h (depending on load) |
| Dimensions (L×W×H) | Customizable (typical 1800×1200×2000 mm) |
Applications & Customer Benefits
- Industrial Wastewater Treatment — Effective for electroplating, chemical, pharmaceutical, textile, and food processing effluents. Reduces COD, TDS, and heavy metals.
- Zero Liquid Discharge (ZLD) Systems — As a core unit, it enables salt recovery and water reuse, meeting stringent environmental regulations.
- Resource Recovery — Crystallizes valuable salts (e.g., sodium sulfate, ammonium chloride) for reuse or sale, turning waste into profit.
- Low Energy Consumption — Vacuum operation cuts energy usage by up to 30% compared to atmospheric evaporation. Combined with optional heat recovery, further savings are achieved.
- Simple Maintenance — 304 SS surfaces are easy to clean; automatic CIP (clean-in-place) cycles are available. Spare parts are readily available.
- Compliance & Reliability — Our company holds certifications including ISO9001, ISO14001, OHSAS18001, and others, ensuring consistent quality and environmental responsibility.
Our factory in Qingdao, Shandong, China, with an annual export value of US$10 million to US$50 million, serves clients across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. We have delivered hundreds of vacuum evaporation systems globally, earning trust through reliable performance and after-sales support. Each unit undergoes rigorous testing before shipment, and our team provides installation guidance, commissioning, and remote technical assistance.
Why choose Qingdao Conqinphi? With over 9 years of experience, a dedicated R&D department, and a skilled workforce of 200+ professionals, we offer customized solutions that fit your exact treatment needs. Contact us today for a free consultation, process design, and quotation. Let us help you achieve efficient, cost-effective wastewater treatment and resource recovery.
Frequently Asked Questions
Q1: What types of wastewater can this vacuum evaporation crystallizer handle?
A: It is suitable for high-salinity, high-COD, and corrosive waste streams such as electroplating rinses, chemical mother liquors, landfill leachate, and brine from RO rejects. The 304 SS construction resists many acids and salts, but for highly corrosive media (e.g., chlorides above 200 ppm), we recommend 316L or duplex stainless steel options.
Q2: How much energy does the 5kW heater consume per hour?
A: The rated heating power is 5kW, so at full load it consumes 5 kWh per hour. However, the actual energy consumption depends on the evaporation rate and vacuum level. Under typical conditions, the system can evaporate 20–40 liters of water per hour, resulting in an energy cost of approximately $0.50–$1.00 per hour (based on local electricity rates).
Q3: Can I customize the capacity or add a heat recovery system?
A: Yes, absolutely. Our modular design allows scaling from 5kW to 50kW or more. We can also integrate a vapor compression (MVR) module or a heat exchanger for energy recovery, reducing operating costs by up to 50%. Contact our sales team with your specific requirements.
Q4: What is the typical payback period for this equipment?
A: The payback period depends on wastewater volume, local disposal costs, and recovered salt value. For many clients, the system pays for itself within 12–24 months through reduced waste hauling fees, water reuse, and byproduct sales. We can provide a detailed ROI analysis based on your data.
Q5: How do you ensure the quality and reliability of the equipment?
A: Our factory is ISO9001 and ISO14001 certified. We use high-grade 304 stainless steel from reputable mills, and every component is tested before assembly. The complete system undergoes a 48-hour continuous test run with water and simulated wastewater. We also provide a 12-month warranty and lifetime technical support.
Q6: What is the shipping and installation process?
A: We ship from Qingdao Port, China. The equipment is securely packed in wooden crates. Our team can provide on-site installation supervision or remote guidance. We also offer training for your operators. Typical delivery time is 30–45 days after order confirmation.
Q7: Does the system require special permits or certifications for import?
A: The vacuum crystallizer is a mechanical equipment, not a pressure vessel, so it usually does not require special import permits. However, we can provide necessary documentation such as certificate of origin, packing list, and material test reports. For specific regulations in your country, please consult your local customs.
Q8: Can I get a sample or a pilot test before purchasing?
A: Yes, we offer a pilot rental service (for a nominal fee) or you can send a small sample of your wastewater to our lab for a free treatability study. We will simulate the evaporation and crystallization process and provide a report with recommended parameters.
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