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Multi-Effect Evaporation Crystallizer for Zero Liquid Discharge (ZLD) Systems
Product Spotlights
High-efficiency multi-effect evaporation crystallizer designed for complete Zero Liquid Discharge. Features customizable corrosion-resistant construction, integrated automated control, and scalable design to treat challenging industrial wastewater. Reduces operational costs via energy recovery, minimizes waste volume, and ensures regulatory compliance. Offers pilot testing and global support from an experienced manufacturer.
US$ 6450 - 915400
MOQ: 1 Set
Key Specifications
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Application:
Other, Zero Liquid Discharge (ZLD) Systems for Industrial Wastewater
Process Type:
Multi-Effect Evaporation with Integrated Crystallization
Material of Construction:
Corrosion-resistant alloys (e.g., 316L, duplex, titanium)
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao
Delivery Detail:
20 days
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Application
Other, Zero Liquid Discharge (ZLD) Systems for Industrial Wastewater
Process Type
Multi-Effect Evaporation with Integrated Crystallization
Material of Construction
Corrosion-resistant alloys (e.g., 316L, duplex, titanium)
Capacity Range
Customizable from 1 to 100+ m³/day
Key Function
Concentrate brine to solid crystals, achieving near-zero liquid waste
Energy Efficiency Feature
Thermal Vapor Recompression (TVR) or Mechanical Vapor Recompression (MVR) options
Control System
Fully automated PLC control with HMI interface
Design Standard
Customizable to meet specific client process requirements
As a leading manufacturer specializing in advanced environmental solutions, Qingdao Conqinphi Environmental Technology Group is proud to present our high-performance Multi-Effect Evaporation Crystallizer. Engineered for demanding Zero Liquid Discharge (ZLD) applications, this system represents our commitment to providing reliable, efficient, and sustainable wastewater treatment technologies. With over eight years of industry experience and a 10,000-30,000 square meter production facility, we design and build crystallizers that help industrial clients meet stringent environmental regulations, recover valuable resources, and minimize their ecological footprint.
Our Multi-Effect Evaporation Crystallizer is a cornerstone technology for achieving true Zero Liquid Discharge. It is specifically designed to handle challenging industrial waste streams, such as:
- Power Plant FGD Wastewater: Treats flue gas desulfurization blowdown.
- Chemical & Pharmaceutical Effluent: Manages high-salinity and complex organic/inorganic mixtures.
- Textile & Dyeing Wastewater: Concentrates and crystallizes salts and dyes.
- Landfill Leachate: Processes highly contaminated leachate to dry solids.
- Mining & Metallurgical Brine: Recovers water and salts from process streams.
Core Working Principle & Advantages:
The system utilizes multiple evaporation effects in series, where the vapor generated in one effect serves as the heat source for the next, dramatically improving thermal efficiency. The concentrated brine is then further processed in the crystallizer section to produce solid salts. Key advantages include:
- Superior Energy Efficiency: Multi-effect design significantly reduces steam consumption compared to single-effect units.
- High Salt Recovery Rate: Produces dry, free-flowing crystalline solids suitable for disposal or potential reuse.
- Robust & Corrosion-Resistant: Constructed from high-grade alloys selected based on feed chemistry to ensure long service life.
- Fully Automated Operation: Integrated PLC control ensures stable operation, reduces labor costs, and optimizes performance.
- Scalable Design: Systems are engineered modularly, allowing for capacity expansion to match future needs.
Technical Specifications & Configurations:
The following table outlines typical customizable parameters for our standard offerings. Final specifications are tailored to your specific feed analysis and output requirements.
| Parameter | Description / Range | Notes |
|---|---|---|
| Evaporator Type | Forced Circulation (FC), Falling Film (FF), or Hybrid | Selected based on scaling/fouling potential |
| Number of Effects | 2 to 6 effects (standard) | More effects = higher efficiency, higher capital cost |
| Heat Source | Low-Pressure Steam, Thermal Oil, or Electric | MVR (Mechanical Vapor Recompression) option available |
| Crystallizer Type | OSLO Type or Forced Circulation Crystallizer | For controlled crystal growth and size distribution |
| Construction Material | 316L SS, Duplex SS, Titanium, Nickel Alloys | Material selection is critical for corrosion resistance |
| Control System | PLC with Touchscreen HMI, SCADA integration optional | Enables remote monitoring and data logging |
Benefits for Your Operation:
- Regulatory Compliance: Achieve mandated ZLD targets, avoiding fines and facilitating permits.
- Water Reuse: Recover high-purity distillate for boiler feed, cooling tower makeup, or process reuse.
- Waste Minimization: Drastically reduce the volume of hazardous liquid waste for off-site disposal.
- Operational Cost Savings: Lower waste hauling costs and reduced freshwater intake.
- Sustainable Profile: Enhance your company's environmental stewardship and corporate responsibility.
Backed by a robust quality management system and holding multiple international standards, Qingdao Conqinphi delivers proven reliability. Our systems are exported globally to markets including North America, Europe, and Southeast Asia, supported by a team of 201-300 dedicated professionals. We provide comprehensive services from pilot testing and feasibility studies to detailed engineering, manufacturing, installation supervision, and operator training. Partner with us to implement a robust ZLD solution that is both economically and environmentally sound. Contact our technical sales team today for a detailed proposal tailored to your wastewater stream.
Frequently Asked Questions (FAQ)
-
Q: What is the main difference between a multi-effect evaporator and a single-effect unit for ZLD?
A: A multi-effect system uses the vapor from one chamber to heat the next, recycling thermal energy. This drastically cuts steam consumption—often by 50% or more compared to a single-effect system—making it far more cost-effective for large-scale, continuous ZLD operations. -
Q: Can this system handle wastewater with high scaling potential (e.g., high silica or calcium sulfate)?
A: Yes. We often recommend a Forced Circulation (FC) evaporator design for such streams. Additionally, pretreatment options (like softening) and integrated cleaning systems (CIP) can be included in the design to manage scaling and ensure stable, long-term operation. -
Q: What is the typical final product from the crystallizer? Is the salt pure enough for sale?
A: The crystallizer produces a mixed salt slurry that is typically dewatered into a damp cake or dried into solid crystals. The purity depends entirely on the feed composition. While often treated as solid waste, in some cases (like RO reject from sea water), the salts can be further processed for potential resource recovery. A feed analysis is needed to assess this possibility. -
Q: Is Mechanical Vapor Recompression (MVR) a better option than multi-effect for my plant?
A: MVR is highly electrically efficient and excellent for specific applications, but it has a higher capital cost and is sensitive to large fluctuations in boiling point rise. Multi-effect systems are often preferred for very high concentrations or when low-pressure waste steam is readily available. Our engineers can perform a techno-economic analysis to recommend the optimal configuration. -
Q: How do you determine the appropriate construction materials for our specific wastewater?
A: Material selection is critical. We require a detailed feed water analysis (including pH, chlorides, sulfates, organics, etc.) and operating temperatures. Based on this, we apply corrosion charts and industry experience (often using alloys like duplex stainless steel or titanium) to specify materials that will ensure a long equipment lifespan. -
Q: What kind of pilot testing or feasibility study do you offer?
A: For new or complex waste streams, we strongly recommend a pilot study. We can provide mobile pilot units for on-site testing to gather real data on evaporation rates, scaling behavior, and crystal formation. This data is used to accurately size the full-scale system and guarantee its performance. -
Q: What is included in your scope of supply and services?
A: Our standard scope includes detailed process design, manufacturing of the main evaporator-crystallizer skid, instrumentation, control system, and necessary internal components. We also offer optional services like auxiliary equipment supply (pumps, tanks), installation supervision, commissioning, and comprehensive operator training programs. -
Q: What is the typical lead time for a custom ZLD crystallizer system?
A: Lead time varies significantly with complexity and capacity. For a standard system, it typically ranges from 6 to 9 months from order to shipment. This includes detailed engineering, procurement, fabrication, and factory testing. Expedited options may be available upon request.
Send Inquiry to This Supplier
Miss scarlet
Sales
1Yr
Qingdao, Shandong, China
1Yr
Business Type
Manufacturer
Year Established
2015
Factory Size
10,000-30,000 square meters
Annual Export Value
US$10 Million - US$50 Million
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