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Help CenterZero-Discharge Wastewater Treatment Unit, 4-Stage Reverse Osmosis, 220V/50Hz, Programmable PLC Controller
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents our advanced Zero-Discharge Wastewater Treatment Unit with 4-Stage Reverse Osmosis. As a manufacturer established in 2015 with a 10,000–30,000 m² factory and over 200 skilled employees, we specialize in delivering reliable water treatment solutions for global markets. This unit is engineered to achieve true zero liquid discharge, recovering over 98% of water while minimizing waste, making it an ideal choice for industries facing stringent environmental regulations.
Equipped with a programmable PLC controller and robust 4-stage RO membranes, our system ensures consistent water quality with minimal operator intervention. The 220V/50Hz power configuration suits standard industrial installations, and the modular design allows easy integration into existing wastewater networks. Below we detail the core features, specifications, and benefits.
Key Product Features & Technical Specifications
- Zero-Discharge Capability: Closed-loop system prevents any liquid effluent – recover and reuse water, concentrate solids for disposal or recycling.
- 4-Stage Reverse Osmosis Design: Includes pre-filtration (sand, carbon, cartridge), first-pass RO, second-pass RO (optional), and polishing stage to achieve TDS reduction >99%.
- Programmable PLC Controller: Touch-screen HMI for real-time monitoring of flow, pressure, conductivity, tank levels; automatic alarms, shutdown, and remote control readiness.
- Energy Efficiency: Low-energy membranes and variable frequency drive (optional) reduce power consumption up to 20% compared to conventional systems.
- Robust Construction: Frame: SS304/316 stainless steel; piping: UPVC or stainless steel; corrosion-resistant coating for harsh environments.
- Compact Footprint: Skid-mounted design saves floor space; pre-assembled and tested at factory for quick on-site commissioning.
- Customizable Capacity: Available from 500 L/H to 50,000 L/H; configuration can be adjusted based on raw water characteristics (TDS, hardness, organic load).
- Comprehensive Safety: Includes low-pressure protection, high-pressure shutdown, auto-flush, and leak detection – all managed by PLC.
| Parameter | Specification |
| Stage Count | 4 (multi-pass optional) |
| Power Supply | 220V/50Hz, 3-phase (other voltages available) |
| PLC Controller | Siemens/Mitsubishi (customizable) |
| Recovery Rate | ≥98% (with concentrate recirculation) |
| Operating Pressure | 10-40 bar (adjustable) |
| Material | Stainless steel/FRP (optional) |
| Max TDS Feed | ≤50,000 ppm (higher upon request) |
| Dimensions (Typical 1m³/h) | 2.5m x 1.5m x 2.0m (customizable) |
Benefits to Your Operation: By implementing this zero-discharge unit, you eliminate costly wastewater discharge fees, meet local and international environmental standards, and achieve water reuse that directly reduces operational costs. The automated PLC system minimizes labor requirements and provides data logging for compliance reporting. Whether you are in the chemical, pharmaceutical, textile, food & beverage, or mining industry, this solution scales to fit your needs.
Trust & Reliability from a Proven Manufacturer
Since 2015, Qingdao Conqinphi Environmental Technology Group Co., Ltd. has exported water treatment systems worth US$10–50 million annually to over 20 countries across North America, Europe, Asia, Africa, and Oceania. Our factory spans 10,000–30,000 m² with a team of 201–300 experienced professionals. We hold multiple certifications such as ISO9001, ISO14000, OHSAS18001, and others (HACCP, TL900, SA8000) – each optional and available upon request. Our main port is Qingdao, ensuring efficient global logistics. With a strong focus on customer support, we provide comprehensive installation guidance, after-sales technical assistance, and spare parts availability.
Invest in our Zero-Discharge Wastewater Treatment Unit today and gain a competitive edge in sustainable production. Contact our sales team for a customized proposal and detailed engineering documentation. We welcome factory inspections and trial runs – your satisfaction is our priority.
Frequently Asked Questions (FAQ)
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What is the minimum order quantity?
Typically one unit, but we can discuss based on your project needs. Small systems (500 L/H) are available as standard modules. -
How long does installation take?
For a skid-mounted unit, on-site installation and commissioning usually take 3–7 days, depending on site preparation and utilities. -
Can the system handle high TDS water?
Yes, standard design handles up to 50,000 ppm TDS. For higher TDS (e.g., RO brine), we can add extra stages or specialize high-pressure membranes. -
What is the lifespan of the RO membranes?
With proper pre-treatment and regular cleaning, membranes typically last 2–5 years. Our PLC unit includes automatic flush to extend membrane life. -
Do you provide training for operators?
Yes, we offer on-site training and detailed manuals. Remote support is also available via PLC remote access. -
Is the system compliant with international standards?
Our manufacturing follows ISO9001 quality management. Certificates like CE, ISO14000, OHSAS18001 can be provided upon request. -
What is the warranty period?
We offer a standard 12-month warranty for defects, with extended warranty options available. -
How is the zero-discharge achieved?
The concentrate from the RO is further treated via crystallizer or evaporation (provided separately or integrated). We design a closed-loop where all liquid is recovered and only dry solids exit.
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