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As a leading manufacturer since 2015, Qingdao Conqinphi Environmental Technology Group Co., Ltd. proudly presents our ZLD Water Treatment System – a robust solution engineered for zero liquid discharge applications. Crafted from premium 304 stainless steel, this system is designed to maximize water recovery and minimize waste, meeting the highest environmental standards. Every unit comes with a Mill Test Report to verify material quality and compliance with international norms, giving you full traceability and peace of mind.
Our ZLD system is the result of decades of combined expertise in water treatment, serving clients across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. With a factory spanning 10,000–30,000 square meters and a team of 201–300 professionals, we deliver reliable, high-performance equipment tailored to your specific industrial needs. Whether you are in power generation, chemical processing, or pharmaceuticals, our ZLD solution helps you achieve regulatory compliance and operational efficiency.
Key Features & Technical Specifications
- Zero Liquid Discharge (ZLD) Capability: Recovers up to 99% of water from wastewater, leaving only solid waste for disposal or reuse.
- 304 Stainless Steel Construction: Corrosion-resistant, durable, and suitable for aggressive chemical environments.
- Mill Test Report Included: Guarantees material composition and mechanical properties per ASTM standards.
- Standard Compliant Design: Meets ISO9001, ISO14000, OHSAS18001, and other international management system requirements.
- Modular Configuration: Customizable with RO membranes, MVR evaporators, crystallizers, and dewatering systems.
- Automated Control: PLC-based HMI for easy operation, real-time monitoring, and remote access.
- Energy Efficient: Low operating costs with optimized heat integration and minimal chemical usage.
- Flexible Capacity: Available in sizes from 1 m³/h to over 100 m³/h, tailored to your flow rate.
| Parameter | Specification |
|---|---|
| Material | 304 Stainless Steel (SS304) |
| Water Recovery Rate | ≥ 95% (up to 99% with optional configuration) |
| Operating Pressure | Up to 60 bar (depending on RO/evaporator stage) |
| Temperature Range | 5°C – 80°C (customizable) |
| Power Supply | 380V / 50Hz (or as per local standard) |
| Control System | PLC + Touch Screen (Siemens or equivalent) |
| Certifications | HACCP, TL900, QS9000, SA8000, ISO9001, ISO14000, OHSAS18001, etc. |
| Warranty | 12 months (standard), extended options available |
Advantages & Customer Benefits
- Environmental Compliance: Achieve zero discharge regulations effortlessly, avoiding fines and protecting your corporate reputation.
- Cost Savings: Reduce water purchase costs, wastewater treatment fees, and disposal expenses – the system pays for itself over time.
- High Durability: 304 stainless steel resists corrosion and scaling, ensuring long service life with minimal maintenance.
- Material Traceability: The Mill Test Report provides full documentation of steel grade, composition, and mechanical properties – essential for regulated industries.
- Global Standards: Designed to meet ISO, HACCP, and other international requirements, making it suitable for export to any market.
- Customizable Integration: Can be combined with existing pre-treatment or post-treatment systems for a seamless solution.
- Quick Installation: Skid-mounted design reduces site work and commissioning time.
Why Choose Qingdao Conqinphi?
With an annual export value of US$10–50 million and a dedicated team of 201–300 employees, we have successfully delivered ZLD systems to clients in over 30 countries across all major continents. Our factory is certified with ISO9001, ISO14000, OHSAS18001, HACCP, TL900, QS9000, SA8000, and many other standards, reflecting our commitment to quality, safety, and social responsibility. We are not just a supplier – we are a long-term partner in water sustainability.
Every ZLD system we ship undergoes rigorous factory testing and comes with a comprehensive Mill Test Report for the stainless steel components. We also provide complete documentation, including P&ID, O&M manual, and electrical drawings. Our after-sales support includes remote troubleshooting, spare parts supply, and on-site commissioning assistance.
Contact us today to discuss your wastewater treatment challenges. Let our engineers design a ZLD system that gives you water reuse, zero discharge, and peace of mind.
Frequently Asked Questions (FAQ)
1. What is a ZLD water treatment system?
ZLD stands for Zero Liquid Discharge. It is a treatment process that eliminates all liquid waste by recovering clean water for reuse and concentrating impurities into a solid residue. Our system uses a combination of reverse osmosis, evaporation, and crystallization to achieve this.
2. Why is 304 stainless steel used for this system?
304 stainless steel offers excellent corrosion resistance against a wide range of chemicals, high temperature tolerance, and long-term durability. It is also food-grade and easy to clean, making it ideal for sensitive industrial applications.
3. What is a Mill Test Report and why is it important?
A Mill Test Report (MTR) is a document that certifies the chemical composition and mechanical properties of the steel used. It provides traceability from the mill to the final product, which is critical for quality assurance, regulatory compliance, and customer audits.
4. How do you ensure the system is standard compliant?
Our design and manufacturing processes follow ISO9001, ISO14000, OHSAS18001, and other applicable standards. We also conduct internal quality checks and can provide third-party inspection reports upon request. The Mill Test Report further confirms material compliance.
5. What industries can benefit from this ZLD system?
Typical industries include power plants, chemical processing, pharmaceuticals, textiles, food & beverage, mining, and oil & gas. Any industry that generates high-salinity or contaminated wastewater and needs to meet strict discharge limits can use our system.
6. Can the system be customized to my specific flow rate and water quality?
Absolutely. We offer fully customizable designs based on your feed water analysis, required permeate quality, and space constraints. Our engineering team will work with you to select the optimal configuration, including pre-treatment, RO, MVR, and crystallizer modules.
7. What is the typical maintenance requirement?
Maintenance is minimal due to the robust 304 stainless steel construction. Routine tasks include cleaning membranes (if used), checking pumps and valves, and monitoring control parameters. We provide a detailed maintenance schedule and 12-month warranty.
8. How long does delivery take?
Delivery time depends on the system size and customization level. Typically, it ranges from 4 to 12 weeks after order confirmation. We ship from Qingdao Port, China, and can arrange door-to-door logistics.
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