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Help CenterIndustrial High-Salinity Wastewater Treatment System, 316L Stainless Steel MVR Evaporator, PLC Automatic Control
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. is a leading manufacturer based in Qingdao, Shandong, with over 200 employees and a factory spanning 10,000–30,000 square meters. Our annual export value exceeds US$10 million, and we serve markets across North America, Europe, Southeast Asia, and beyond. We bring you the Industrial High-Salinity Wastewater Treatment System, 316L Stainless Steel MVR Evaporator with PLC Automatic Control – a state-of-the-art solution designed to handle the toughest brine waste streams while recovering up to 95% of water as high-quality distillate. This system combines robust construction, energy efficiency, and intelligent automation to meet the demanding needs of industries such as petrochemical, pharmaceutical, textile dyeing, landfill leachate, mining, and desalination.
Key Features & Benefits
- 316L Stainless Steel Construction – Superior corrosion resistance against chlorides, acids, and high-salinity brines, ensuring long service life and minimal maintenance.
- Mechanical Vapor Recompression (MVR) Technology – Recycles latent heat from vapor, reducing energy consumption up to 60% compared to traditional multi-effect evaporators. Typical specific power: 15–50 kWh/ton of evaporated water.
- PLC Automatic Control System – Touch-screen HMI with real-time monitoring, automatic start/stop, alarm management, and remote connectivity (optional). Reduces manual labor and ensures consistent operation.
- High Recovery Rate – Achieves >95% water recovery as condensate, with TDS
- Compact Modular Design – Skid-mounted for easy installation and footprint reduction. Available in capacities from 1 ton/h to 50 ton/h.
- Anti-Fouling & Self-Cleaning Options – Optional CIP (Clean-in-Place) system and anti-scaling coatings to handle high-hardness brines.
- Flexible Operation – Handles feed TDS up to 250,000 mg/L (including NaCl, KCl, CaCl2, MgCl2, Na2SO4, etc.).
Technical Specifications
| Parameter | Value |
|---|---|
| Material of Construction | 316L Stainless Steel (super duplex optional) |
| Evaporation Capacity | 1 – 50 ton/h (customizable) |
| Power Consumption | 15 – 50 kWh/ton |
| Max Feed Salinity | 250,000 mg/L |
| Operating Temperature | 70 – 105 °C |
| Control System | Siemens/Allen-Bradley PLC + HMI (touch screen) |
| Distillate Quality | TDS |
| Power Supply | 380V/50Hz (or as required) |
| Certifications | ISO9001, ISO14000, OHSAS18001, SA8000, and others (available upon request) |
Detailed Product Description
The Industrial High-Salinity Wastewater Treatment System is a complete turnkey solution for zero liquid discharge (ZLD) or near-ZLD applications. The core of the system is the MVR evaporator, which uses a compressor to increase the pressure and temperature of generated vapor. This vapor then condenses on the heat exchanger tubes, releasing latent heat to evaporate more feed. The process is highly efficient because the only energy input is mechanical (electricity for the compressor), with minimal thermal loss.
The 316L stainless steel construction is specifically chosen for its resistance to chloride stress corrosion cracking, a common failure mode in high-salinity environments. All wetted parts – including the evaporator vessel, heat exchanger tubes, piping, and valves – are made of 316L or higher-grade alloys if needed. The system is designed to handle brines containing chlorides, sulfates, and other corrosive ions.
The PLC automatic control system is engineered for reliability and ease of operation. It features:
- Automatic feed control based on level sensors and conductivity.
- Compressor speed modulation (VFD) to match evaporation load.
- Temperature and pressure loop control.
- Continuous monitoring of distillate quality, with automatic diversion if TDS exceeds setpoint.
- Alarm logging and remote notification (optional).
Options include a crystallization module to produce dry salt, a heat recovery system for preheating feed, and a double-effect pre-concentrator for extremely high flows. Our engineering team can customize the system to your specific wastewater chemistry, flow rate, and local utility conditions.
Trust & Reliability
Qingdao Conqinphi Environmental Technology Group Co., Ltd. has been a trusted manufacturer since 2015, with a 10,000–30,000 m² factory and a dedicated R&D team. We hold multiple management system certifications including ISO9001, ISO14000, OHSAS18001, SA8000, and more. Our products have been exported to over 30 countries, with annual export revenue between US$10 million and US$50 million. Each MVR system undergoes rigorous factory testing before shipment, and we provide comprehensive after-sales support including commissioning, training, and spare parts supply.
Contact us today for a detailed proposal tailored to your specific wastewater challenges. With our advanced MVR technology, you can achieve regulatory compliance, reduce disposal costs, and recover valuable water resources.
Frequently Asked Questions (FAQ)
-
What is the maximum salinity the system can handle?
Our standard design handles feed TDS up to 250,000 mg/L. For higher salinities, we recommend a pre-treatment or customized materials. Contact us for evaluation. -
How much energy does the MVR system consume compared to traditional evaporators?
MVR typically consumes 15–50 kWh per ton of evaporated water, which is 40–60% less energy than multi-effect falling film evaporators (MEE). -
Can the system produce dry salt instead of concentrated brine?
Yes, we offer an optional crystallization module that can produce dry salt (e.g., NaCl) suitable for reuse or disposal. -
Is the PLC system compatible with remote monitoring?
Yes, we can integrate Ethernet/4G modules for remote access, allowing you to monitor and control the system from anywhere. -
What maintenance is required?
Routine maintenance includes cleaning the heat exchanger surfaces (CIP recommended), checking compressor oil and seals, and verifying sensor accuracy. Frequency depends on feed composition. -
What is the typical delivery lead time?
For standard capacities (1–10 ton/h), lead time is 60–90 days after deposit. Larger systems may require 120–150 days. -
Do you provide on-site installation and training?
Yes, we offer worldwide commissioning and training services. Our team will help with installation, startup, and operator training. -
What certifications do you have?
We are certified to ISO9001, ISO14000, OHSAS18001, SA8000, and other standards. Additional certifications (e.g., CE, ASME) can be arranged upon request.
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