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Welcome to Qingdao Conqinphi Environmental Technology Group Co., Ltd. As a professional manufacturer established in 2015, we operate a factory spanning 10,000–30,000 square meters with a dedicated team of 201–300 employees. Our Automatic High-Salinity Industrial Wastewater Recovery System with integrated PLC control is specifically engineered for electroplating processes, delivering exceptional water recovery rates while minimizing environmental impact. This system helps electroplating facilities achieve sustainable operations and comply with stringent discharge regulations.
Our system addresses the critical challenge of high-salinity wastewater treatment in electroplating, where conventional methods often fall short. By combining advanced membrane technology, evaporation, and crystallization with intelligent PLC automation, we offer a robust solution that recovers up to 95% of water for reuse, reduces sludge volume, and lowers operational costs. Designed for continuous 24/7 operation, it ensures consistent performance even under fluctuating feed conditions.
Key Features and Advantages
- Integrated PLC Control – Siemens/Mitsubishi PLC with HMI touchscreen provides real-time monitoring of pressure, flow, temperature, and salinity. The system can be programmed for automatic start/stop, alarm management, and remote access (optional SCADA integration).
- High Salinity Tolerance – Handles TDS levels from 10,000 to 80,000 ppm, making it ideal for electroplating rinse waters, concentrated brine streams, and industrial effluents.
- Modular Design – Skid-mounted or containerized options available for easy installation and expansion. The system footprint can be customized based on capacity requirements.
- Energy Efficient – Utilizes low-energy membrane processes (RO/NF) and mechanical vapor recompression (MVR) for evaporation, reducing power consumption by up to 30% compared to traditional thermal methods.
- Zero Liquid Discharge (ZLD) Ready – When configured with crystallizers, the system achieves near-zero liquid discharge, recovering valuable salts and producing high-quality distillate.
- Corrosion-Resistant Construction – All wetted parts are made of stainless steel 304/316 or higher-grade alloys to withstand aggressive chemicals and high chloride environments.
- Low Maintenance – Automatic cleaning cycles (CIP) and anti-scaling pretreatment extend membrane life and reduce manual intervention.
- Flexible Automation – The PLC logic can be tailored to integrate with existing plant DCS or MES systems via OPC-UA or Modbus protocols.
Technical Specifications (Typical Model)
| Parameter | Value |
|---|---|
| Feed Flow Rate | 10 – 100 m³/h (customizable) |
| Feed TDS Range | 10,000 – 80,000 ppm |
| Water Recovery Rate | 85% – 95% (depending on salinity) |
| Product Water Quality | Conductivity |
| Power Consumption | 2.5 – 5.0 kWh/m³ (for RO + MVR) |
| Operating Temperature | 15°C – 45°C |
| Materials of Construction | SS304, SS316, PVC, PVDF |
| Control System | PLC + HMI (Siemens S7-1200 / Mitsubishi FX series) |
| Dimensions (approximate) | 10m (L) x 3m (W) x 4m (H) for 50 m³/h (skid) |
| Weight | Approx. 15,000 – 30,000 kg |
Application in Electroplating Processes
In electroplating lines, high-salinity wastewater originates from rinsing baths, spent plating solutions, and regeneration effluents. Our system effectively treats these streams, allowing electroplating facilities to:
- Recycle high-purity water back to rinse tanks, reducing freshwater consumption by over 90%.
- Concentrate heavy metals (e.g., nickel, copper, chromium) into smaller volumes for recovery or safe disposal.
- Comply with local discharge standards for TDS, heavy metals, and COD.
- Reduce chemical usage for pH adjustment and flocculation through optimized pretreatment.
- Minimize environmental liability and enhance corporate sustainability reporting.
Case Example: A mid-size electroplating facility with 20 m³/h of rinse water containing 25,000 ppm TDS and 50 ppm nickel achieved 92% water recovery and reduced nickel discharge by 99% after installing our system. Payback period was less than 18 months through water and chemical savings.
Why Choose Qingdao Conqinphi Environmental Technology Group?
Since 2015, we have grown into a leading environmental technology manufacturer with an annual export value of US$10 Million – US$50 Million. Our products are shipped worldwide, including markets in North America, Europe, Southeast Asia, Africa, and Oceania. We hold multiple certifications such as ISO9001, ISO14000, OHSAS18001, SA8000, HACCP, and others, reflecting our commitment to quality, safety, and social responsibility.
Our team of over 200 experienced engineers and technicians ensures each system is meticulously designed and tested before delivery. We provide comprehensive after-sales support, including installation guidance, commissioning, training, and spare parts supply. With direct access to Qingdao Port, we can offer efficient logistics and competitive shipping costs.
Take the next step toward sustainable electroplating. Contact us today to discuss your specific wastewater characteristics and capacity needs. Our technical sales engineers will prepare a tailored proposal with detailed performance guarantees and a clear return-on-investment analysis.
Frequently Asked Questions (FAQ)
-
Q: What types of electroplating wastewater can this system treat?
A: It handles rinse waters, concentrated baths, and wastewater containing nickel, copper, chromium, zinc, and other metals, provided TDS is below 80,000 ppm. For extremely high TDS or unique chemistry, we can modify the pretreatment stage. -
Q: Is the PLC control system customizable?
A: Yes. The PLC program can be tailored to integrate with your existing SCADA or MES platform. Options include remote monitoring via Ethernet, SMS alerts, and automatic data logging for compliance reporting. -
Q: What is the typical recovery rate for electroplating rinse water?
A: For typical rinse water with TDS 10,000–30,000 ppm, recovery rates range from 85% to 92%. With additional MVR evaporation, the overall system recovery can exceed 95%. -
Q: How much floor space is required?
A: A 50 m³/h system occupies approximately 30–40 m². Skid-mounted designs minimize footprint. We also offer containerized units for outdoor installation. -
Q: What maintenance is involved?
A: Routine tasks include checking chemical dosing levels, cleaning membrane (CIP every 2–4 weeks), and inspecting pumps and valves. The PLC provides maintenance reminders and fault diagnosis. -
Q: Do you provide installation and commissioning services?
A: Yes, we offer on-site supervision for installation and commissioning, as well as training for your operators. Remote support is also available. -
Q: What is the lead time and shipping port?
A: Standard lead time is 8–12 weeks. All units are shipped from Qingdao Port, China. We can handle FOB, CIF, or DDP terms based on your preference. -
Q: Can the system achieve zero liquid discharge (ZLD)?
A: Yes, with an optional crystallizer module, the system can achieve near-ZLD, where all wastewater is converted into distillate and solid salt cake. This configuration is recommended for strict discharge regulations.
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