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Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents our Industrial Wastewater Treatment Equipment designed specifically for metal plating plants requiring effective removal of heavy metals and cyanide. With over 10 years of manufacturing expertise (since 2015), we have delivered reliable solutions to clients across North America, Europe, Southeast Asia, and beyond. Our system combines advanced chemical oxidation, precipitation, and filtration technologies to meet stringent discharge standards while protecting downstream ecosystems. Built in our 10,000–30,000 m² factory with a team of 201–300 skilled employees, this equipment reflects our commitment to quality and innovation.
Key Features & Technical Specifications
- Dual-stage cyanide oxidation – Alkaline chlorination effectively breaks down toxic CN⁻ into harmless CO₂ and N₂, achieving removal efficiency >99.9%.
- Multi-metal precipitation – pH-controlled chemical addition (lime, caustic soda, or proprietary reagents) precipitates heavy metals as hydroxides or sulfides, reducing concentrations below regulatory limits (e.g., Cu < 0.5 mg/L, Ni < 0.5 mg/L, Cr < 0.5 mg/L).
- Integrated solid-liquid separation – Lamella clarifier + sand filter or ultrafiltration ensures high clarity effluent suitable for reuse or safe discharge.
- PLC-based automation – Touchscreen interface with real-time monitoring of pH, ORP, flow rate, and chemical dosing; remote operation option available.
- Corrosion-resistant construction – Tanks and piping made from FRP, PP, or 316L stainless steel to withstand aggressive chemicals.
- Modular design – Compact footprint allows easy installation in existing plant layouts; capacity customizable from 10 m³/day to over 500 m³/day.
- Low operating cost – Optimized chemical consumption and energy-efficient pumps reduce total cost of ownership.
| Parameter | Value |
|---|---|
| Treatment Capacity | 10–500 m³/day (customizable) |
| Inlet pH Range | 2–12 |
| Cyanide Removal Efficiency | ≥ 99.9% (final CN⁻ ≤ 0.2 mg/L) |
| Heavy Metal Removal Rate | ≥ 99.5% (depending on metal species) |
| Operating Temperature | 5–45°C |
| Power Consumption | 0.5–2.5 kWh per m³ treated |
| Automation Degree | Full PLC + HMI with remote access option |
Customer Benefits
- Compliance assurance – Meets EPA, EU, and local discharge standards for heavy metals and cyanide.
- Water reuse potential – Treated effluent can be recycled for rinsing or cooling, reducing freshwater intake.
- Operator-friendly – Simple start-up and shut-down procedures; minimal daily maintenance.
- Quick ROI – Reduced fines, lower water bills, and potential metal recovery offset investment.
- Global support – Our experienced team provides on-site commissioning, training, and after-sales service.
Why Choose Qingdao Conqinphi? With USD 10–50 million annual export value and a factory spanning 10,000–30,000 m², we are a trusted manufacturer in the environmental sector. Our products are certified under ISO9001, ISO14000, OHSAS18001, and other international standards (HACCP, SA8000, TL900, etc.), reflecting our dedication to quality, safety, and sustainability. We have shipped equipment to North America, South America, Europe, Africa, Oceania, and the Middle East, earning repeat business from leading metal plating companies. Our Qingdao port location ensures efficient logistics worldwide. Contact us today to discuss your wastewater challenges – we will tailor a solution that fits your budget and discharge requirements.
Frequently Asked Questions
Q: What types of metals can your equipment remove?
A: Our system effectively removes common heavy metals found in metal plating wastewater, including copper (Cu), nickel (Ni), chromium (Cr), zinc (Zn), lead (Pb), and cadmium (Cd). Removal rates typically exceed 99.5%.
Q: How does the system handle cyanide?
A: We employ alkaline chlorination using sodium hypochlorite in a controlled pH range (10–11) to oxidize cyanide to cyanate, then to carbon dioxide and nitrogen. This ensures complete detoxification.
Q: What is the typical delivery time?
A: Standard units (up to 50 m³/day) can be shipped within 30–45 days. Larger custom systems may require 60–90 days depending on complexity.
Q: Do you provide installation and training?
A: Yes, we offer on-site installation supervision and operator training for all projects. Remote commissioning support is also available.
Q: Can this equipment handle fluctuating flow rates?
A: Yes, the PLC-controlled system automatically adjusts chemical dosing and pumping rates based on inlet flow and ORP/pH readings, ensuring stable performance even with ±20% flow variation.
Q: What is the lifespan of the equipment?
A: With proper maintenance, the equipment typically lasts 10–15 years. Key components like pumps and sensors may require replacement after 3–5 years.
Q: Do you have references from metal plating customers?
A: Absolutely. We can share case studies and contact details of satisfied clients in the electroplating industry upon request.
Q: Is the system customizable for specific space constraints?
A: Our modular design allows flexible layout configurations. We can arrange tanks and components to fit within limited floor space or unusual building shapes.
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