Nội dung
- ectWastewater Reuse System, Capacity 30 m³/day at a Metal Manufacturing and Processing Plant – Dong Nai, Vietnam
- 1. Project Overview
- 2. Characteristics of Influent Wastewater
- 3. Applied Technology Solution
- 4. Treatment Performance and Results
- 5. Actual Images of the Wastewater Reuse System (30 m³/day) in Dong Nai
- Why Choose a Wastewater Reuse Treatment System?
ectWastewater Reuse System, Capacity 30 m³/day at a Metal Manufacturing and Processing Plant – Dong Nai, Vietnam
As industrial zones face increasing pressure on water resources and environmental compliance, wastewater reuse solutions for metal manufacturing and processing industries have become an inevitable trend.
The project “Wastewater Reuse System with a capacity of 30 m³/day at a metal processing plant in Dong Nai” clearly demonstrates our capabilities in design, implementation, and operation of industrial wastewater reuse systems, delivering technical efficiency, environmental sustainability, and optimized operating costs for manufacturers.
1. Project Overview
Subject:
Design, manufacture, supply, installation, and operation of a wastewater reuse system for metal manufacturing and processing.
Location:
Dong Nai Province, Vietnam
System capacity:
30 m³/day
Treatment scope:
Hazardous industrial wastewater generated from metal manufacturing and processing activities
Project objectives:
Ensure treated effluent complies with QCVN 40:2011/BTNMT – Column A
Enable reuse of treated water for production purposes
2. Characteristics of Influent Wastewater
According to the plant owner, the existing RO-based wastewater reuse system generates approximately 30 m³/day of RO concentrate, which requires further treatment or reuse.
2.1 Influent wastewater composition and characteristics
| No. | Parameter | Unit | Analytical Value |
|---|---|---|---|
| 1 | pH | – | – |
| 2 | COD | mg/L | 400 – 800 |
| 3 | Hardness | mg/L | 50 – 70 |
| 4 | TDS | mg/L | 2,700 – 12,000 |
| 5 | Electrical Conductivity | µS | 4,500 – 20,000 |
| 6 | Chloride | mg/L | 1,500 – 7,000 |
| 7 | SiO₂ | mg/L | 100 – 140 |
2.2 Wastewater type:
Hazardous industrial wastewater
2.3 Key challenges:
High pollutant concentrations and complex characteristics requiring advanced treatment technologies.
3. Applied Technology Solution
To effectively treat high-strength hazardous industrial wastewater, the project applies Reverse Osmosis (RO) membrane technology—one of the most advanced and efficient treatment methods currently available for wastewater reuse.
Applied treatment technologies:
Wastewater electrolysis
Physico-chemical treatment
Coarse filtration
High-pressure RO technology for wastewater
Wastewater evaporation technology (TVTS Evaporator) – Phase 2
Key advantages:
Maximizes clean water recovery
Completely minimizes the risk of liquid discharge to the environment
Well-suited for industries generating complex wastewater with medium to high TDS levels, such as metal manufacturing and processing
4. Treatment Performance and Results
Recovered clean water:
Approximately 65% in Phase 1.
In Phase 2, when the plant upgrades to an evaporation system toward Zero Liquid Discharge (ZLD), the recovery rate increases to 78–97%.
Treated water quality
| No. | Parameter | Unit | Plant Reuse Standard |
|---|---|---|---|
| 1 | pH | – | 6.0 – 8.0 |
| 2 | COD | mg/L | < 200 |
| 3 | TDS | mg/L | < 1,000 |
| 4 | Electrical Conductivity | µS | < 2,000 |
| 5 | Chloride | mg/L | < 400 |
| 6 | SiO₂ | mg/L | < 10 |
The treated water fully meets the internal reuse standards of the plant.
Key benefits delivered:
Significant reduction of environmental pollution
Full compliance with environmental regulations
Long-term cost savings through water reuse and reduced freshwater consumption
5. Actual Images of the Wastewater Reuse System (30 m³/day) in Dong Nai
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Wastewater reuse treatment system for the metal manufacturing and processing industry
Why Choose a Wastewater Reuse Treatment System?
Selecting a wastewater reuse system is not only a technical solution, but also a long-term sustainable investment strategy for manufacturing plants. By optimizing treatment technologies, increasing clean water recovery, and reducing dependence on freshwater supplies, businesses can lower long-term operating costs while proactively complying with increasingly stringent environmental regulations.
With extensive hands-on experience from completed projects, we deliver customized wastewater reuse solutions tailored to each production process, ensuring operational efficiency, environmental safety, and lasting economic value for investors.
If you are looking for a tailored wastewater reuse system for your metal manufacturing plant, please contact us for professional consultation and a customized system design that meets your actual operating requirements.
