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Help CenterCompact Zero-discharge Wastewater Unit, SS 316L, RO+EDI, Conductivity <10µS/cm Output
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Qingdao Conqinphi Environmental Technology Group Co., Ltd., a professional manufacturer established in 2015 with a factory spanning 10,000–30,000 m² and an annual export value of US$10–50 million, introduces our Compact Zero-discharge Wastewater Unit constructed from SS 316L and integrating RO + EDI technology. This system delivers treated water with conductivity below 10 µS/cm, making it ideal for high-purity applications while eliminating liquid waste. Designed for efficient, space-saving operation, it offers a reliable solution for industries seeking sustainable water reuse.
Our unit combines reverse osmosis (RO) and electrodeionization (EDI) in a single, compact footprint. The use of corrosion-resistant SS 316L ensures longevity even in harsh environments. The system achieves zero-discharge by recycling concentrate streams, reducing environmental impact and operational costs. Below are key technical specifications:
| Parameter | Value |
| Material | SS 316L |
| Treatment Process | RO + EDI |
| Output Conductivity | |
| Recovery Rate | ≥ 95% (customizable) |
| Control System | PLC with HMI (optional) |
Key Features & Benefits
- Zero Liquid Discharge (ZLD): Eliminates wastewater discharge, complying with strict environmental regulations and reducing water consumption.
- High Purity Output: Conductivity less than 10 µS/cm meets the requirements for pharmaceutical, electronics, and laboratory applications.
- Compact Design: Skid-mounted, space-saving layout simplifies installation and integration into existing facilities.
- Corrosion-Resistant Construction: SS 316L ensures durability in aggressive water conditions and extends equipment lifespan.
- Energy Efficiency: Optimized RO and EDI operation reduces energy consumption compared to conventional distillation methods.
- Low Maintenance: Automated cleaning and monitoring options reduce manual intervention and downtime.
- Customizable Flow Rates: Available in various capacities to match specific production requirements.
The unit is particularly suitable for industries such as pharmaceutical manufacturing, electronics rinsing, chemical processing, and power generation where high-purity water is essential. By recovering and reusing up to 95% of the feed water, it significantly lowers operational costs and supports sustainability goals.
Frequently Asked Questions
Q1: What is the typical feed water quality required for this unit?
A: The system is designed to treat wastewater with moderate total dissolved solids (TDS) up to 2000 ppm. For higher TDS, pre-treatment options are available. Please consult our engineering team for a customized solution.
Q2: How does the zero-discharge feature work?
A: The RO concentrate is further processed through a brine concentrator or crystallizer (optional) to recover additional water and produce solid waste. Alternatively, the unit can be configured with a recirculation loop to minimize waste, achieving near-zero liquid discharge.
Q3: What is the maintenance schedule for the EDI modules?
A: EDI modules typically require chemical cleaning every 6–12 months depending on feed water quality. The system includes indicators to alert when cleaning is needed. Routine replacement of pre-filters and RO membranes is recommended every 2–3 years.
Q4: Can this unit be integrated with existing water treatment systems?
A: Yes, the compact design allows easy integration. We provide connection flanges and control compatibility. Our technical team can assist with retrofitting to your current setup.
Q5: What certifications does this product comply with?
A: Our manufacturing facility is certified under ISO9001, ISO14000, OHSAS18001, and other management systems. The unit is designed to meet CE, UL, and other relevant standards upon request. Individual certifications can be provided for specific market requirements.
Q6: Is the system fully automated?
A: The standard configuration includes automatic control for RO and EDI operation, with optional SCADA or remote monitoring. Manual override is available for maintenance.
Q7: What is the warranty period?
A: We offer a standard 12-month warranty from date of commissioning. Extended warranty options are available upon request. Spare parts are readily supplied from our warehouse in Qingdao.
Q8: How long does delivery take?
A: Typical lead time is 30–45 days after order confirmation, depending on customization. We ship from Qingdao port with global logistics partners.
As a trusted manufacturer with 201–300 employees and a strong export presence across North America, Europe, Asia, and beyond, we have delivered hundreds of water treatment systems since 2015. Our commitment to quality is backed by multiple certifications including ISO9001, ISO14000, and OHSAS18001. We offer comprehensive after-sales support, including installation guidance, commissioning, and remote troubleshooting.
Choose Qingdao Conqinphi for your high-purity water needs. Our compact zero-discharge unit not only reduces your environmental footprint but also delivers consistent water quality. Contact us today for a tailored quotation or technical consultation. Let us help you achieve sustainable water management with reliable, efficient equipment.
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