How are centralized wastewater treatment plants organized, and what are their advantages?

Advantages of centralized wastewater treatment facilities

Constructing centralized wastewater treatment facilities far away from residential or industrial areas helps minimize the impact of odors from wastewater on the surrounding population. This helps quickly eliminate the odor of wastewater without affecting the air quality of the nearby environment.

• Capable of treating wastewater in a synchronized manner on a large scale. Therefore, this method is being chosen by many advanced countries around the world.
• Constructing specialized, centralized wastewater treatment facilities helps save investment and operation costs while still achieving high efficiency.
• Can buffer in case of excessively high wastewater flow or toxic waste content.
• Stable operation and can be easily controlled automatically, thus saving labor costs.
• Moreover, this system is favored for causing minimal disruption to existing infrastructure.

Components in centralized wastewater treatment facilities

Mechanical treatment facilities

Mechanical treatment, also known as preliminary treatment, serves the following purposes:

• Separate large waste or skim off suspended solids in wastewater.
• Remove sand from wastewater.
• Treat oils and grease.

Some mechanical treatment facilities currently in use include:

• Bar screens.
• Rack screens.
• Clarifiers.
• Sand settling tanks.

Chemical treatment facilities

The main purpose of chemical treatment methods includes:

• Coagulation - creating flocs for suspended waste particles to adhere to each other, forming large flocs. These flocs then sink to the bottom and can be easily separated from the wastewater above.
• This method can remove metal precipitates, eliminate harmful salts, oil emulsions, reduce BOD, COD in water.

Additionally, chemical treatment methods are effective in removing oil, colorants, neutralizing wastewater, and oxidizing reducing agents.

Biological treatment facilities

The purpose of biological methods in wastewater treatment includes:

• Decomposing organic matter under the action of microorganisms decomposing waste.
• Using aerobic, anaerobic, facultative microorganisms to consume organic matter as food.
• Treating Nitrogen and Phosphorus in water.

Some facilities used in biological treatment methods for wastewater include:

• Upflow Anaerobic Sludge Blanket (UASB) bioreactor.
• Anoxic bioreactor.
• Aerobic bioreactor, Moving Bed Biofilm Reactor (MBBR), Sequencing Batch Reactor (SBR), Membrane Bioreactor (MBR).

Construction units for centralized wastewater treatment facilities

Customers should choose centralized wastewater treatment services at Toan A JSC for the following reasons:

• Toan A JSC has over 20 years of experience in designing, constructing wastewater treatment systems, clean water treatment, and supplying water industry equipment.
• The team of technicians has high professional qualifications, providing customers with highly effective, cost-saving solutions.
• We possess the most modern technology in wastewater treatment, ensuring high efficiency and stable operation.
• The construction costs, machinery installation costs, raw material costs, and chemical costs provided by Toan A JSC are always competitive. This is because we import raw materials directly from manufacturers, without going through third parties.
• Prior to constructing wastewater treatment facilities, Toan A's experts proactively conduct thorough research on wastewater characteristics, water volume, investor requirements, regional terrain characteristics, system construction area... to provide the most optimal solutions to effectively protect the ecological environment.

Above are the insights from Toan A JSC's experts on centralized wastewater treatment facilities. We hope that the information we provide has helped you understand more about this system. If you have any questions or need assistance, please contact us via hotline: 0913.543.469 for detailed advice from leading experts in the field of wastewater treatment.