Boiler and Furnace Flue Gas Treatment Solutions Meeting QCVN 19:2009/BTNMT Standards

Industrial boilers and furnaces fueled by wood, coal, biomass, or other solid fuels generate exhaust gases containing dust, particulate matter, sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO), and various inorganic pollutants. Without proper treatment, these emissions can negatively impact air quality, employee health, and environmental compliance.

VIET WATER JOINT STOCK COMPANY (VIET WATER JSC) specializes in consulting, designing, constructing, commissioning, and transferring technologies for boiler and furnace flue gas treatment systems. Our solutions are optimized to achieve high treatment efficiency, low investment costs, and stable long-term operation.

Viet Water provides:

• Technical consultation and site assessment

• Air pollution control system design

• Equipment fabrication and installation

• Commissioning and performance testing

• Operation training and technology transfer

• Maintenance and system upgrading services

24/7 Technical Support Hotline: (+84) 947 999 930 – (+84) 904 506 065

Characteristics of Boiler and Furnace Flue Gas

Flue gas generated from wood-fired, coal-fired, biomass-fired boilers and industrial furnaces typically contains various pollutants.

Particulate Matter and Fly Ash

Generated during fuel combustion, including:

• Dust particles

• Fly ash

• Suspended solids

Acidic Gases

Such as:

• Sulfur Dioxide (SO₂)

• Sulfur Trioxide (SO₃)

formed during the combustion of sulfur-containing fuels.

Nitrogen Oxides (NOx)

Produced at high combustion temperatures.

Carbon Monoxide (CO) and Carbon Dioxide (CO₂)

Generated from incomplete and complete combustion processes.

High Flue Gas Temperature

Typically ranging from:

• 120°C to 300°C

• Higher depending on boiler design and fuel type

Therefore, gas cooling is often required before treatment.

Principles for Selecting Boiler Flue Gas Treatment Technology

Viet Water designs treatment systems based on the following criteria:

Cost-Effective Investment

Providing economically feasible solutions for industrial facilities.

Low Operating and Maintenance Costs

Reducing expenses related to:

• Electricity consumption

• Chemical usage

• Routine maintenance

Environmentally Friendly Technology

Minimizing secondary waste generation and environmental impact.

High Removal Efficiency

Ensuring compliance with:

QCVN 19:2009/BTNMT – National Technical Regulation on Industrial Emissions for Dust and Inorganic Substances.

Viet Water Boiler Flue Gas Treatment Technology

For wood-fired, coal-fired, and biomass-fired boilers, Viet Water primarily applies:

Wet Scrubber Absorption Technology

Wet scrubbers are highly effective for removing:

• Dust particles

• SOx compounds

• Acidic gases

• Portions of NOx emissions

Boiler Flue Gas Treatment Process

Exhaust Gas Collection

Flue gas generated from the boiler is captured through:

• Collection hoods

• Ductwork systems

and conveyed to the central treatment unit.

Induced Draft Fan System

The induced draft fan performs the following functions:

• Maintaining stable airflow

• Creating negative pressure within the system

• Preventing gas accumulation and backpressure inside the boiler

It also ensures proper gas flow through the treatment system.

Cooling and Primary Treatment Tower

Inside the treatment tower, flue gas comes into direct contact with circulating water.

Functions

• Reducing gas temperature

• Improving pollutant absorption efficiency

• Removing a portion of dust and fly ash

After cooling, the gas enters the absorption section.

Pollutant Absorption Process

The scrubbing solution is sprayed uniformly throughout the tower.

Gas-liquid contact enables the removal of:

• Sulfur dioxide (SO₂)

• Sulfur trioxide (SO₃)

• Acidic gases

• Partial NOx compounds

• Fine particulate matter

The treatment solution is then collected in a storage tank for:

• Sedimentation

• Recirculation and reuse

which significantly reduces operating costs.

Exhaust Stack Discharge

After treatment, clean gas is discharged through the exhaust stack.

The treated emissions comply with:

QCVN 19:2009/BTNMT

before being released into the atmosphere.

Advantages of Viet Water Boiler Flue Gas Treatment Systems

Reduced Capital Investment

Systems are optimized according to actual plant requirements.

Lower Operating Costs

Achieved through:

• Recirculating scrubbing solution

• High-efficiency equipment

• Automated control systems

Continuous Operation

Designed for:

• Fully automatic operation

• Stable performance

• 24/7 continuous service

Easy Management

Simple operation and maintenance procedures.

Flexible Installation

Adaptable to various plant layouts and space constraints.

Project Schedule and Installation Methodology

Treatment Tower Fabrication

The treatment tower is manufactured at Viet Water's workshop.

Estimated fabrication period: 10–15 days.

After fabrication, the equipment is transported to the project site.

Equipment and Piping Installation

Including:

• Induced draft fans

• Process piping systems

• Recirculation pumps

• Electrical control panels

Estimated installation period: 7–10 days.

Commissioning and Optimization

Upon installation completion:

• Equipment inspection

• Airflow balancing

• Performance testing

• Operator training and system handover

are conducted before final acceptance.

Viet Water Boiler Flue Gas Treatment Services

Site Assessment and Consultation

• Emission source evaluation

• Pollutant load calculations

• Technology recommendation

Engineering Design

• Process flow diagrams

• Detailed engineering drawings

• Cost estimation

Construction and Installation

• Equipment fabrication

• Turnkey installation

• Startup and commissioning

Training and Technology Transfer

• Operator training

• Maintenance guidance

• Complete technology transfer

Why Choose Viet Water?

• Experienced environmental engineering team

• Customized solutions for various boiler types

• Cost-effective investment

• High treatment efficiency

• Compliance with QCVN 19:2009/BTNMT

• Long-term technical support

• Comprehensive technology transfer services

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 – www.moitruongvietwater.com

Hotline: (+84) 947 999 930 – (+84) 904 506 065