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As a leading manufacturer based in Qingdao, China, Qingdao Conqinphi Environmental Technology Group Co., Ltd. (established 2015) specializes in advanced wastewater treatment solutions. Our 316L Stainless Steel High-Salt Wastewater Zero-Discharge System with Automatic Crystallizer is engineered to meet the most stringent environmental standards. This system transforms challenging high-salinity effluents into reusable water and solid salt, achieving true zero liquid discharge (ZLD) with minimal energy consumption. Whether you operate in chemical processing, mining, or food production, this robust, corrosion-resistant unit delivers reliable performance and long-term cost savings.
The system integrates a high-efficiency automatic crystallizer that separates dissolved salts from water without the need for manual intervention. Using 316L stainless steel for all wetted parts, it withstands aggressive chloride environments and high temperatures, ensuring durability even at salt concentrations above 200,000 mg/L. With a processing capacity of 500 liters per hour, it is ideal for pilot-scale or small-to-medium production lines.
Key Features and Technical Advantages:
- Corrosion-Resistant 316L Construction – All contact parts are 316L stainless steel, providing outstanding resistance to pitting and crevice corrosion caused by high chloride levels. Extended service life with minimal maintenance.
- Fully Automatic Operation – Equipped with a PLC and HMI touchscreen, the system monitors and controls temperature, pressure, flow, and concentration. Operators can set crystallization parameters and receive alarms for any deviation.
- Energy-Efficient Crystallization – The automatic crystallizer uses mechanical vapor recompression (MVR) technology to recycle latent heat, reducing energy consumption by up to 60% compared to traditional evaporators.
- Zero Liquid Discharge Guarantee – All water is recovered as distillate, and salts are discharged as dry crystals (≤5% moisture). No liquid effluent leaves the system.
- Compact Footprint – Skid-mounted design saves valuable floor space. Dimensions approx. 2.5m (L) × 1.2m (W) × 2.0m (H). Easy to install and relocate.
- Versatile Feed Compatibility – Handles TDS from 30,000 to 250,000 ppm, including NaCl, Na2SO4, CaCl2, and mixed salts. Optional pre-filtration for suspended solids removal.
- Customizable Configurations – Available with single or multi-effect evaporation, different vacuum levels, and material upgrades (e.g., duplex stainless steel). Built to your specific wastewater chemistry.
Technical Specifications:
| Parameter | Value |
| Feed Capacity | 500 L/h (std), 250–1000 L/h customizable |
| Feed TDS Range | 30,000 – 250,000 ppm |
| Distillate TDS | |
| Solid Salt Moisture | ≤ 5% |
| Operating Temperature | 60–95 °C (adjustable) |
| Power Consumption | ~30–50 kWh/m³ of feed |
| Electrical Supply | 380V / 50Hz, 3-phase (other options available) |
| Control System | PLC + Touchscreen, remote monitoring optional |
| Materials of Construction | 316L SS (wetted), carbon steel frame |
Benefits for Your Business:
- Compliance & Sustainability: Meet zero-discharge regulations seamlessly. Avoid penalties and enhance your corporate environmental image.
- Water Reuse: Recover up to 95% of wastewater as high-quality distillate, reducing fresh water intake and operational costs.
- Resource Recovery: Produce marketable salt by-products (e.g., industrial-grade NaCl) or reduce waste disposal expenses.
- Low Labor Costs: Automatic operation with self-cleaning cycles and remote alerts minimizes daily oversight.
- Fast ROI: Typical payback period of 2–3 years depending on local water and disposal costs.
Trusted Manufacturer with Proven Capability
Qingdao Conqinphi Environmental Technology Group Co., Ltd. operates a modern factory spanning 10,000–30,000 square meters with a dedicated team of 201–300 professionals. Since 2015, we have exported our equipment to over 30 countries across North America, Europe, Asia, and Africa, with an annual export value of US$10–50 million. Our products are certified under multiple international standards including ISO9001, ISO14000, OHSAS18001, and others, ensuring consistent quality and safety.
Every system undergoes rigorous testing for pressure, performance, and material integrity before shipment. We offer comprehensive after-sales support, including installation guidance, operator training, and a standard 12-month warranty with extended options. Our experienced engineers can tailor the system to your specific wastewater characteristics, guaranteeing optimal results.
Frequently Asked Questions
Q1: What types of high-salt wastewater can this system handle?
It is designed for brines with TDS from 30,000 to 250,000 ppm, including chlorides, sulfates, and nitrates. A pre-filter is recommended if suspended solids exceed 100 ppm.
Q2: Can the system be fully automated?
Yes. The PLC controls all stages: feed, evaporation, crystallization, and discharge. The HMI allows operators to set parameters and monitor real-time data. Remote monitoring via Ethernet is optional.
Q3: How often does the crystallizer need cleaning?
The system includes automatic flushing cycles. Depending on salt type, manual inspection is recommended every 500–1000 operating hours. Scaling can be minimized with chemical additives if needed.
Q4: What is the footprint of the 500L/H model?
The skid measures approximately 2.5m × 1.2m × 2.0m (L×W×H). Additional space for auxiliary equipment (e.g., feed tank, product storage) is required.
Q5: Does the system require any special utility connections?
Standard connections: electrical supply (380V/50Hz, 3-phase), cooling water (optional), compressed air (for valves), and a drain for non-condensable gases. Detailed utility requirements are provided with the quotation.
Q6: Can I get a customized system for a different capacity or salt composition?
Absolutely. We offer capacities from 250 L/h to 10,000 L/h and can adjust materials, heat source (steam/electric), and control configuration. Contact our sales team with your feed analysis.
Q7: What certifications does your company hold?
We are certified under ISO9001, ISO14000, OHSAS18001, and other management systems. Specific product certifications (e.g., CE, ATEX) can be supplied upon request and depend on the target market.
Q8: What is the delivery time for a standard 500L/H unit?
Typical lead time is 45–60 days after order confirmation and down payment. Custom units may require 60–90 days. We ship from Qingdao Port.
Eliminate your industrial wastewater discharge challenges with Conqinphi's proven technology. Request a quote or technical consultation today. Our team is ready to provide a detailed proposal based on your site conditions.
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