WASTEWATER REUSE SYSTEM – A SUSTAINABLE WATER CIRCULATION SOLUTION FOR MODERN INDUSTRIES

As freshwater resources become increasingly scarce, water supply costs continue to rise, and environmental compliance requirements grow stricter, the Wastewater Reuse System has emerged as a strategic solution for industrial facilities, industrial parks, and commercial buildings.

 

Instead of treating wastewater solely for discharge compliance, many enterprises now invest in advanced wastewater reuse systems to reclaim treated effluent for suitable internal applications. This approach not only reduces operating costs but also strengthens environmental performance and long-term sustainability.

With extensive experience in wastewater treatment engineering, Viet Water JSC delivers customized wastewater reuse systems designed to meet industry-specific needs while ensuring operational efficiency and regulatory compliance.

 

What Is a Wastewater Reuse System?

A Wastewater Reuse System is an integrated treatment solution that further upgrades treated wastewater quality, enabling it to be safely reused for defined purposes instead of being fully discharged into the environment.

Unlike conventional wastewater treatment systems that focus only on meeting discharge standards, wastewater reuse systems incorporate advanced treatment stages, such as:

• Ultrafiltration (UF)

• Membrane Bioreactor (MBR)

• Reverse Osmosis (RO), when high-quality water is required

• UV or Ozone disinfection

• Online monitoring and quality control

These systems are engineered to produce reclaimed water suitable for various non-potable or process-related applications.

 

Why Are Industries Investing in Wastewater Reuse Systems?

The growing adoption of wastewater reuse systems is driven by several key factors:

• Rising freshwater supply and discharge costs

• Seasonal water shortages and supply instability

• Stricter environmental regulations and permits

• ESG, CSR, and sustainability reporting requirements

• Increasing expectations from international clients and investors

By implementing wastewater reuse, enterprises gain both economic and environmental advantages.

Key Benefits of a Wastewater Reuse System

Significant Reduction in Freshwater Consumption

Depending on application and system design, wastewater reuse can reduce freshwater demand by 30–70%, especially in water-intensive industries such as food processing, seafood, textiles, and manufacturing.

Lower Discharge Volume and Environmental Risk

Reducing discharge flow helps stabilize wastewater treatment operations, minimizes regulatory risk, and enhances environmental compliance.

Greater Water Supply Independence

Reclaimed water ensures continuity during droughts, peak production periods, or temporary water supply interruptions.

Enhanced ESG and Sustainability Performance

A wastewater reuse system is a strong asset in ESG evaluations, environmental audits, and sustainability disclosures.

 

Applications of Wastewater Reuse Systems

Based on project experience, Viet Water JSC designs wastewater reuse systems for:

• Food & beverage processing plants

• Seafood processing and livestock facilities

• Textile, plating, and chemical industries

• Industrial parks and manufacturing clusters

• Commercial buildings and residential complexes

Each system is custom-engineered, avoiding unnecessary investment while ensuring optimal performance.

 

Typical Configuration of a Wastewater Reuse System by Viet Water JSC

A standard system generally includes:

Biological Treatment Unit

• MBR, MBBR, or SBR processes

• Removal of COD, BOD, ammonia, and nutrients

Advanced Filtration Unit

• UF membranes

• Activated carbon filters

• RO systems for high-purity water demands

Disinfection Unit

• UV disinfection

• Ozone treatment

• Chlorination (if required)

Storage and Distribution

• Reclaimed water storage tanks

• Booster pumps

• Dedicated reuse pipelines

Monitoring and Control

• Online sensors for pH, turbidity, TDS

• Automated control and monitoring systems

Design philosophy:
“Meet reuse requirements precisely—no excessive technology, no wasted investment.”

 

How Does a Wastewater Reuse System Operate?

A typical operational sequence includes:

1. Collection of wastewater and biological treatment

2. Advanced filtration to remove fine solids and microorganisms

3. Final disinfection

4. Storage of reclaimed water

5. Distribution to designated reuse points

6. Continuous water quality monitoring

Each stage is carefully calculated based on flow rate, pollutant load, and reuse objectives.

 

Levels of Water Reuse in Wastewater Reuse Systems

Not all reuse applications require the same water quality. Viet Water JSC classifies reuse levels as:

• Landscape irrigation and road washing

• Cooling towers and heat exchange systems

• Industrial process water

• Boiler feed water (combined with RO systems)

Each reuse level has distinct design criteria and investment costs.

 

Regulatory and Technical Standards for Wastewater Reuse Systems

Wastewater reuse systems must comply with:

• Relevant Vietnamese discharge and reuse regulations

• Internal corporate water quality standards

• Environmental permits and approvals

• Client or investor-specific technical requirements

Viet Water JSC provides full technical consulting and regulatory support throughout the project lifecycle.

 

Investment Cost and Payback Period

The cost of a wastewater reuse system depends on:

• Required reuse quality

• Treatment capacity

• Selected technologies

• Automation and monitoring requirements

In practice, many projects achieve payback within 2–4 years through reduced freshwater and discharge expenses.

Why Choose Viet Water JSC for Your Wastewater Reuse System?

• Proven experience across multiple industries

• Tailored solutions aligned with real operational needs

• EPC services from design to commissioning

• Environmental permitting and compliance support

• Long-term operation and maintenance assistance

Implementation Process at Viet Water JSC

1. Site survey and wastewater analysis

2. Technology selection and system proposal

3. Detailed engineering and cost estimation

4. Construction and installation

5. Commissioning and performance testing

6. Handover and operator training

Conclusion

A Wastewater Reuse System is not only an environmental solution but a strategic investment that helps enterprises reduce costs, secure water resources, and achieve sustainable growth.

Viet Water JSC is committed to delivering reliable, efficient, and future-ready wastewater reuse solutions tailored to your business needs.