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Qingdao Conqinphi Environmental Technology Group Co., Ltd. — a professional manufacturer established in 2015 with a factory area of 10,000–30,000 m² and over 200 employees — presents this Zero-Discharge High-Salt Wastewater Treatment System. Engineered for industries facing stringent discharge regulations, this system delivers complete water recovery and solid salt separation, ensuring environmental compliance and resource reuse. With a 1-year warranty and on-site commissioning support, we provide a turnkey solution that minimizes your operational risk. Our annual export value of US$10–50 million reflects global trust in our technology, serving markets from North America to Southeast Asia and beyond.
This advanced system integrates MVR evaporation, forced circulation crystallization, and/or membrane pre-concentration to achieve true zero liquid discharge (ZLD). It handles high-salinity streams up to 200,000 mg/L TDS, converting wastewater into high-purity distilled water and crystalline salts suitable for reuse or safe disposal. Below are the core technical features:
- Energy-efficient MVR technology — Mechanical vapor recompression reduces steam consumption by up to 80%, lowering operating costs to ≤70 kWh per ton of water treated.
- Corrosion-resistant construction — All wetted parts made of 316L stainless steel or duplex stainless steel, with optional titanium or Hastelloy for extreme salinity.
- Fully automatic PLC control — Touch-screen HMI with remote monitoring capability, automatic start/stop, and alarm system for 24/7 unattended operation.
- Modular design — Skid-mounted or containerized options for fast installation and easy capacity expansion (from 1 m³/h to 50 m³/h per unit).
- On-site commissioning & training — Our engineers supervise startup, adjust parameters, and train your operators to ensure seamless integration.
- Comprehensive warranty package — 1-year full coverage on all components, with extended warranty and spare parts packages available upon request.
| Parameter | Value |
|---|---|
| Inlet TDS range | 10,000 – 200,000 mg/L |
| Water recovery rate | ≥ 98% (up to 99.5% with pre-concentration) |
| Distillate quality | TDS |
| Salt purity | ≥ 95% (crystalline), can be further purified |
| Operating temperature | 70–105 °C (adjustable) |
| Power supply | 380V / 50Hz or 460V / 60Hz, customizable |
| Footprint per module | Approx. 6m × 3m × 4m (for 5 m³/h capacity) |
This system is ideal for industries such as chemical processing, petrochemical, power generation, textile dyeing, landfill leachate, and desalination brine treatment. By eliminating wastewater discharge, you avoid heavy fines and meet increasingly strict environmental regulations. The recovered water can be reused in your production processes, reducing freshwater consumption by thousands of tons annually. The solid salts, depending on composition, can be sold as by-products or safely disposed of in non-hazardous landfills.
**Customer benefits at a glance:**
- ✔ Achieve regulatory compliance with zero-discharge standards (ZLD/MLD).
- ✔ Reduce water purchase cost by recycling 98%+ of your wastewater.
- ✔ Minimize waste disposal fees — only dry salt remains instead of liquid waste.
- ✔ Low operating cost: energy consumption as low as 50–70 kWh/m³.
- ✔ Rapid return on investment (ROI) typically within 1–3 years.
As a manufacturer with ISO9001, ISO14001, OHSAS18001, and other certifications (including HACCP, TL900, SA8000, etc.), we adhere to rigorous quality control and environmental management systems. Our facilities in Qingdao cover 10,000–30,000 m², equipped with advanced fabrication and testing equipment. With over 200 skilled employees and an annual export value exceeding US$10 million, we have successfully delivered similar systems to clients across 6 continents. We also provide free technical consultation, optional third-party inspection, and comprehensive after-sales support. Choose Qingdao Conqinphi for a reliable, fully supported zero-discharge solution.
Frequently Asked Questions (FAQ):
-
Q: What type of salt wastewater can this system treat?
A: It is designed for high-salinity streams with TDS from 10,000 to 200,000 mg/L, including chlorides, sulfates, carbonates, and mixed salts. Please provide a water analysis for optimal design. -
Q: How long does on-site commissioning take?
A: Typically 7–14 days for a standard unit, depending on site conditions and system size. Our engineers will stay until the system runs stably. -
Q: What is the warranty coverage?
A: The standard warranty covers all components for 12 months from start-up or 18 months from shipment (whichever occurs first). Extended warranty up to 3 years is optional. -
Q: Can the system handle fluctuating flow rates?
A: Yes, our PLC control adjusts automatically to variable inlet flow. A buffer tank can be added for large fluctuations. -
Q: What maintenance is required?
A: Regular cleaning of evaporator surfaces (scale removal) every 1–3 months, and periodic replacement of filters and seals. Detailed maintenance schedule is provided. -
Q: Do you provide spare parts?
A: Yes, we offer a recommended spare parts list for 2 years of operation, and local distributors in many regions for quick supply. -
Q: Is the system customizable for different industries?
A: Absolutely. We tailor the material selection (e.g., titanium for high-chloride), pre-treatment steps, and salt separation methods based on your specific wastewater characteristics. -
Q: Can I visit a reference plant before purchase?
A: Yes, we can arrange visits to existing installations (subject to confidentiality agreements) or provide video tours.
Contact us today to discuss your wastewater challenge and receive a customized proposal. With our robust manufacturing base, global service network, and proven technology, we are your trusted partner for sustainable water management.
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