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Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents the High COD Wastewater Treatment Machine – a robust, industrial-grade solution engineered for facilities facing elevated organic pollutant loads. With a powerful 5.5kW motor and an intuitive touch screen PLC control system, this machine delivers consistent, automated treatment performance. Backed by over 9 years of manufacturing expertise (since 2015) and a 10,000–30,000 m² factory, we ensure every unit meets rigorous quality standards. This equipment transforms complex high-COD effluents into discharge-ready water, reducing environmental compliance risks and operational costs.
At the core of this system is a multi-stage treatment process combining physical, chemical, and biological filtration. The 5.5kW motor drives high-efficiency pumps and aerators, while the PLC automates dosing, pH adjustment, and flow control. Operators benefit from a 7-inch color touch screen that provides real-time data, alarm logs, and remote monitoring capability. Whether you treat food processing, pharmaceutical, or textile wastewater, this machine adapts to your specific COD profile.
Key Features & Technical Specifications
- High COD Removal Efficiency: Reduces COD from up to 10,000 mg/L to below 500 mg/L (depending on influent characteristics and configuration).
- Automated PLC Control: Siemens-compatible PLC with intuitive HMI – no specialized programming skills required.
- Durable Construction: Stainless steel 304 tank and piping, resistant to corrosion and chemical attack.
- Energy-Efficient Motor: 5.5kW IE3 premium efficiency motor reduces electricity consumption by up to 15% compared to standard motors.
- Compact Footprint: integrated skid-mounted design minimizes installation space – ideal for retrofit projects.
- Modular Expansion: Optional pre-treatment and advanced oxidation units can be added for extremely high COD loads.
- Safety Features: Overload protection, emergency stop, and automatic shutdown in case of abnormal conditions.
| Parameter | Specification |
|---|---|
| Model | CQ-COD-5.5K |
| Treatment Capacity | 500 – 2000 L/h (customizable) |
| Motor Power | 5.5 kW (7.5 HP) |
| Control System | Touch Screen PLC (7-inch HMI) |
| Voltage / Frequency | 380V / 50Hz (optional 480V/60Hz) |
| Material | SS304 (SS316L optional) |
| Operating Temperature | 5°C – 45°C |
| Weight | Approx. 1200 kg |
The touch screen PLC simplifies operation: you can set target COD levels, adjust chemical dosing rates, and view historical trends. This eliminates manual intervention and reduces human error. For maintenance, the system provides diagnostic alerts and prompts for filter cleaning or chemical refills. Combined with the 5.5kW motor, the machine handles high-flow scenarios without performance degradation.
Why Choose Conqinphi?
As a manufacturer with 201–300 employees and an annual export value of US$10–50 million, we have supplied wastewater solutions to over 50 countries including North America, Europe, and Southeast Asia. Our factory holds multiple certifications such as ISO9001, ISO14000, OHSAS18001, SA8000, HACCP, and more, demonstrating our commitment to quality, environment, and social responsibility. Every machine undergoes a 72-hour load test before shipment. We also offer customizable configurations – from motor voltage to tank coatings – to match your specific wastewater chemistry.
Your investment is protected by a 12-month warranty and lifetime technical support. Our team in Qingdao port ensures efficient logistics – typical lead time is 25–30 working days. With a dedicated after-sales service hotline, we help you commission the system and train your operators remotely or on-site. Contact us today for a free treatability study and discover how this machine can lower your discharge costs while meeting local regulations.
Frequently Asked Questions
Q1: What is the maximum COD level your machine can treat effectively?
A1: The standard configuration handles influent COD up to 10,000 mg/L. For higher loads (up to 30,000 mg/L), we recommend adding an optional advanced oxidation unit. Our engineers can design a tailored solution based on your sample analysis.
Q2: Is the touch screen PLC difficult to operate?
A2: No. The HMI uses an icon-based menu with multi-language support. New operators can learn basic operations within 2 hours. We provide a comprehensive manual and a free remote training session during commissioning.
Q3: Can I integrate this machine with my existing SCADA system?
A3: Yes. The PLC supports Modbus RTU/TCP and can be connected to most supervisory systems. Custom protocols are available upon request.
Q4: What maintenance is required?
A4: Routine tasks include monthly inspection of pump seals, quarterly cleaning of filters, and annual replacement of consumable chemicals (e.g., activated carbon). The PLC logs operating hours and reminds you when maintenance is due.
Q5: What are the power options?
A5: Standard configuration is 380V/50Hz three-phase. We can supply 415V/50Hz, 460V/60Hz, or other voltages – simply inform your project manager.
Q6: Do you offer rental or trial units?
A6: Depending on your location, we may arrange a short-term rental or a pilot test unit for a nominal fee. Contact us to discuss terms.
Q7: What certifications does your machine hold?
A7: The CE certificate is available for EU markets. Our factory management systems are certified under ISO9001, ISO14000, OHSAS18001, and others. Specific product certifications (e.g., UL) can be arranged for certain markets – please inquire.
Q8: How long is the warranty and what does it cover?
A8: We provide a 12-month warranty from shipment date covering defects in materials and workmanship. Extended warranty plans (up to 36 months) are optional. The warranty excludes consumable parts and damage from misuse.
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