DOMESTIC WASTEWATER TREATMENT – EFFECTIVE ENVIRONMENTAL PROTECTION SOLUTIONS FOR RESIDENTIAL AREAS, APARTMENTS AND BUSINESSES
What Is Domestic Wastewater Treatment?
Domestic wastewater is generated from daily human activities such as bathing, washing, cooking, dishwashing, toilet use and other household activities in residences, apartment buildings, hotels, schools, hospitals, office buildings and residential communities.

Domestic wastewater typically contains:
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Organic pollutants (BOD, COD)
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Suspended solids (TSS)
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Oil and grease
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Nitrogen and phosphorus compounds
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Bacteria, viruses and pathogenic microorganisms
Without proper treatment, domestic wastewater can contaminate surface water and groundwater resources, negatively affecting public health and the environment.
VIET WATER JOINT STOCK COMPANY (VIET WATER JSC) specializes in consulting, designing, constructing, operating and maintaining domestic wastewater treatment systems for residential, commercial and industrial projects throughout Vietnam.

Characteristics of Domestic Wastewater
Domestic wastewater is characterized by relatively high biodegradable organic content and significant concentrations of pathogenic microorganisms.
Typical Wastewater Parameters
| Parameter | Typical Range |
|---|---|
| BOD5 | 150 – 400 mg/L |
| COD | 250 – 800 mg/L |
| TSS | 100 – 350 mg/L |
| Total Nitrogen | 20 – 80 mg/L |
| Total Phosphorus | 4 – 15 mg/L |
| Coliform | Very High |
Proper treatment is required to ensure compliance with environmental discharge regulations.
Why Is Domestic Wastewater Treatment Important?
Regulatory Compliance
Residential complexes, apartment buildings, hotels, factories and commercial facilities are required to install wastewater treatment systems in accordance with environmental regulations.

Protection of Water Resources
Wastewater treatment helps prevent pollution of rivers, lakes, canals and groundwater resources.
Public Health Protection
Treatment systems remove harmful bacteria, viruses and disease-causing pathogens before discharge.
Corporate Social Responsibility
Environmental compliance enhances corporate reputation and demonstrates commitment to sustainable development.
Sustainable Water Management
Wastewater treatment contributes to water conservation and supports green development initiatives.

Domestic Wastewater Treatment Process
Depending on project scale and effluent quality requirements, Viet Water designs customized treatment systems using appropriate technologies.
Wastewater Collection and Screening
Wastewater is collected through:
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Bar screens
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Basket screens
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Collection pits
These units remove large debris and protect downstream equipment.
Equalization Tank
The equalization tank serves to:
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Stabilize wastewater flow
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Balance pollutant concentrations
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Prevent biological shock loading
Mixers or aeration systems are commonly installed to prevent sedimentation.
Biological Treatment
Biological treatment is the core process of domestic wastewater treatment systems.
Aerotank Process
Utilizes aerobic microorganisms to degrade organic pollutants.
MBBR Technology
Moving Bed Biofilm Reactor technology uses suspended media carriers to increase biomass concentration and treatment efficiency.
SBR Technology
Sequencing Batch Reactor integrates multiple treatment stages within a single tank, reducing construction area.
MBR Technology
Membrane Bioreactor combines biological treatment with membrane filtration to achieve superior effluent quality.
AAO Technology
Anaerobic-Anoxic-Oxic technology effectively removes BOD, nitrogen and phosphorus.
Secondary Clarification
Separates biological sludge from treated wastewater.
Disinfection
Treated water is disinfected using:
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Chlorination
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Ultraviolet (UV) systems
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Ozone systems
This process eliminates harmful microorganisms before discharge.
Discharge or Reuse
After treatment, water may be:
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Discharged in compliance with environmental regulations
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Used for landscape irrigation
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Road washing
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Cooling water applications
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Other non-potable reuse purposes

Common Domestic Wastewater Treatment Technologies
MBBR Technology
Advantages:
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High treatment efficiency
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Compact footprint
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Easy operation and maintenance
Applications:
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Apartment buildings
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Factories
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Hotels
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Residential communities
MBR Technology
Advantages:
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Excellent effluent quality
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Effective pathogen removal
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Suitable for water reuse projects
SBR Technology
Advantages:
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High automation capability
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Space-saving design
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Cost-effective investment

Domestic Wastewater Treatment Services by Viet Water
System Design
Viet Water provides:
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Site surveys
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Wastewater analysis
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Process design
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Engineering documentation
Construction and Installation
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Civil construction works
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Equipment installation
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Mechanical and electrical integration
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Commissioning and startup
Operation and Maintenance
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Professional operators
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Preventive maintenance services
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Effluent quality monitoring
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Process optimization
System Upgrading and Rehabilitation
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Capacity expansion
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Equipment replacement
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Technology upgrades
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Operating cost reduction
Applications of Domestic Wastewater Treatment Systems
Viet Water provides treatment solutions for:
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Apartment buildings
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Residential communities
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High-rise buildings
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Hotels and resorts
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Schools and universities
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Hospitals and healthcare facilities
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Industrial factories
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Office buildings
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Commercial centers

Why Choose Viet Water?
Experienced Engineering Team
Our engineers possess extensive expertise in environmental engineering and wastewater treatment technologies.
Advanced Treatment Technologies
We apply modern technologies including:
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MBBR
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MBR
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SBR
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AAO
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UF
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RO
Cost-Effective Solutions
Each system is optimized according to actual client requirements and project conditions.
Turnkey Services
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Consulting
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Design
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Construction
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Operation
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Maintenance
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Technology transfer

Contact Information
VIET WATER JOINT STOCK COMPANY
Address: 345 Pham Van Bach Street, Ward 15, Tan Binh District, Ho Chi Minh City, Vietnam
Email: Info@vietwaterjsc.com
Website: vietwaterjsc.com - vwt.vn
Telephone: (+84) 28 6272 4888
Hotline: (+84) 904 506 065
Viet Water – Your Trusted Partner for Domestic Wastewater Treatment Solutions
We are committed to delivering efficient, reliable and sustainable domestic wastewater treatment systems that help businesses and communities comply with environmental regulations while minimizing operating costs and protecting the environment.