VIET WATER JOINT STOCK COMPANY specializes in the assessment, upgrading and rehabilitation of wastewater treatment systems for industrial plants, industrial parks and commercial facilities throughout Vietnam.
WASTEWATER TREATMENT SYSTEM UPGRADING AND REHABILITATION SERVICES
After years of operation, many wastewater treatment systems experience equipment deterioration, capacity overload, outdated technologies and declining treatment efficiency. These issues not only increase operating costs but also create challenges in meeting increasingly stringent environmental regulations.

Instead of investing in a completely new treatment facility, many manufacturers and industrial facilities choose to upgrade and rehabilitate their existing wastewater treatment systems. This approach helps maximize the use of existing infrastructure while significantly reducing capital investment costs.
VIET WATER JOINT STOCK COMPANY specializes in the assessment, upgrading and rehabilitation of wastewater treatment systems for industrial plants, industrial parks and commercial facilities throughout Vietnam. Our experienced engineers provide tailored solutions to improve treatment efficiency, increase system capacity and ensure long-term operational stability.

When Should a Wastewater Treatment System Be Upgraded?
Wastewater treatment systems should be evaluated for upgrading when any of the following conditions occur:
Insufficient Treatment Capacity
As production expands and wastewater flow increases, the existing treatment system may no longer be capable of handling the required hydraulic and pollutant loads.
Effluent Quality Fails to Meet Standards
If parameters such as COD, BOD, TSS, Ammonia or Total Nitrogen frequently exceed discharge limits, system upgrading becomes necessary.
Equipment Deterioration
Long-term operation may result in reduced performance or failure of:
Outdated Treatment Technology
Older treatment systems may no longer meet current environmental requirements or operational efficiency expectations.
High Operating Costs
Excessive energy consumption, chemical usage and maintenance expenses often indicate the need for system optimization.

Common Problems Found in Existing Wastewater Treatment Systems
During rehabilitation projects, Viet Water frequently encounters the following issues:
Biological Process Failure
Common causes include:
These conditions significantly reduce COD and BOD removal efficiency.
Poor Sludge Settling
Symptoms include:
These issues negatively impact clarifier performance and effluent quality.
Inefficient Nitrification
Insufficient nitrification results in elevated ammonia concentrations in treated wastewater.

High TSS in Effluent
Caused by:
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Poor floc formation
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Clarifier malfunction
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Hydraulic overloading
Mechanical Equipment Failures
Commonly affected equipment includes:
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Air blowers
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Submersible pumps
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Agitators
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Chemical dosing systems

Scope of Wastewater Treatment System Rehabilitation
System Assessment and Performance Evaluation
Viet Water engineers conduct:
This assessment forms the basis for selecting the most suitable rehabilitation strategy.
Rehabilitation of Treatment Tanks
Typical activities include:
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Waterproofing repairs
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Structural reinforcement
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Corrosion protection
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Tank volume optimization
Equipment Replacement and Modernization
Services include:
New equipment is selected based on actual operational requirements and energy efficiency considerations.

Piping and Process Modification
Works include:
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Piping rerouting
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Valve replacement
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Flow meter installation
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Process optimization
Technology Upgrading
Depending on wastewater characteristics, Viet Water may integrate advanced treatment technologies such as:
MBBR Technology
Enhances biological treatment performance through increased biomass concentration.
MBR Technology
Combines biological treatment and membrane filtration to achieve superior effluent quality while reducing footprint requirements.
Ultrafiltration (UF)
Removes suspended solids, bacteria and microorganisms.
Reverse Osmosis (RO)
Produces high-quality reclaimed water suitable for reuse applications.
PLC/SCADA Automation
Provides automated operation, real-time monitoring and remote system management.
Biomass and Media Enhancement
Services include:

Viet Water's Rehabilitation Process
Step 1: Site Survey and Data Collection
Step 2: Performance Evaluation
Step 3: Root Cause Analysis
Our engineers identify the underlying causes of system underperformance.
Step 4: Rehabilitation Proposal
Customized solutions may include:
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Capacity expansion
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Process modification
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Equipment modernization
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Automation upgrades
Step 5: Implementation and Technology Transfer
Upon completion, Viet Water provides:
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System commissioning
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Operator training
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Technology transfer
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Operational guidance

Benefits of Wastewater Treatment System Upgrading
Lower Capital Investment
Existing infrastructure can often be reused, reducing project costs significantly.
Improved Treatment Efficiency
Upgraded systems achieve consistent compliance with environmental discharge standards.
Reduced Operating Costs
Optimization of:
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Energy consumption
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Chemical usage
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Labor requirements
Leads to substantial operational savings.
Extended System Lifespan
Modernized equipment and optimized processes improve reliability and service life.
Why Choose Viet Water?
Viet Water has extensive experience in:
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Industrial wastewater treatment
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Domestic wastewater treatment
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Water reuse systems
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MBR, UF and RO technologies
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Industrial water recycling solutions
We provide complete services including:
Every solution is customized based on wastewater characteristics, site conditions and client objectives.

Contact Information
VIET WATER JOINT STOCK COMPANY
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Address: 345 Pham Van Bach Street, Tan Binh Ward, Ho Chi Minh City, Vietnam
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Fabrication Workshop: Thanh Xuan 52 Street, Thanh Xuan Ward, Ho Chi Minh City, Vietnam
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Tel: (+84) 28 6272 4888
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Hotline: (+84) 904 506 065
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Email: Info@vietwaterjsc.com
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Website: www.vietwaterjsc.com
Viet Water – Your Trusted Partner for Wastewater Treatment System Upgrading and Rehabilitation
We are committed to delivering cost-effective, technically advanced and sustainable solutions that improve treatment performance, ensure regulatory compliance and maximize the value of your existing wastewater treatment infrastructure.