The company constructs and repairs wastewater treatment systems

The company constructs and repairs wastewater treatment systems

Most residential areas, industrial parks, schools, and hospitals have wastewater treatment systems that ensure the quality of wastewater when discharged into the environment complies with physical and mechanical criteria without affecting the environment. schools, people’s health.
However, after a period of operation, most wastewater treatment systems degrade, reducing wastewater treatment efficiency and potentially causing environmental pollution. To solve this problem, management boards and investors will need solutions for maintenance and repair of wastewater treatment systems.
To meet the needs of designing, constructing and repairing wastewater treatment systems in Ho Chi Minh City and Hanoi as well as throughout Vietnam, Gia Phat Construction Company has provided design, construction and repair and maintenance services. Comprehensive wastewater treatment system with good price and warranty.

What is wastewater treatment?

A wastewater treatment system, often called a wastewater treatment plant or facility, is a complex infrastructure designed to treat and clean wastewater before releasing it back into the environment or recycling it. Return for reuse.
A well-functioning wastewater system removes harmful contaminants and can be safely returned to the environment or reused sustainably.
Wastewater passing through water treatment systems is often operated through separate systems.

Why must we repair the wastewater treatment system?

Many plants and wastewater treatment systems have been in operation for decades, and their equipment can deteriorate over time due to wear and tear. Regular maintenance and periodic renovations are essential to ensure infrastructure remains functional and efficient.
Wastewater treatment systems play an important role in protecting the environment by removing pollutants and contaminants from wastewater before discharge into natural water bodies. Failure or outdated systems can lead to environmental pollution, harming aquatic ecosystems and public health.

Inadequate or malfunctioning wastewater treatment can pose significant health risks by allowing pathogens and toxic chemicals to enter domestic and recreational water sources. Repairing and upgrading treatment systems helps prevent waterborne diseases and maintain public health.
Environmental regulations and water quality standards are constantly evolving and becoming more stringent. To comply with these regulations, wastewater treatment facilities often must be upgraded or retrofitted with advanced treatment technology to meet new requirements.
Old wastewater treatment systems often operate inefficiently. Renovating and modernizing these systems can help save energy, reduce operating costs and improve overall efficiency.
As communities grow and urbanize rapidly, the need for wastewater treatment will increase. Expansion or upgrading of water treatment infrastructure is necessary to accommodate larger populations and increased wastewater loads to be treated.
Advances in wastewater treatment technology continuously provide more efficient and sustainable wastewater treatment methods. System upgrades can take advantage of these innovations, helping to improve treatment efficiency and reduce environmental impact.

Climate change can lead to more frequent and extreme weather events, such as heavy rains and floods. Retrofitting wastewater treatment systems to be more resilient to climate-related challenges can help prevent system failures during extreme weather conditions.
Modern wastewater treatment plants are increasingly exploring resource recovery opportunities, such as extracting energy from wastewater or recovering valuable nutrients such as phosphorus and nitrogen. Renovations can incorporate these technologies, contributing to achieving sustainability goals.
By investing in repairs and renovations, communities can ensure the long-term sustainability of their wastewater infrastructure, reducing the need for costly emergency repairs and replacements later.

Cost of repair and maintenance of wastewater treatment systems

The cost to repair and maintain a wastewater treatment system can vary significantly depending on a number of factors, including the size and complexity of the system, the age and condition of the system, which can range from Two components are checked for maintenance:
1. Treatment plant structural repairs are essential to maintain the functionality, integrity and safety of wastewater treatment facilities. These structures include various components such as tanks, sumps, buildings, pipes, and equipment.
2. Repairs and upgrades to process station equipment are necessary to ensure efficient and reliable operations of industrial facilities, including manufacturing plants, chemical processing facilities, and production lines. export. This process includes assessing the condition of equipment, addressing maintenance needs and making improvements to improve performance, safety and efficiency.
It is important for wastewater treatment facilities to budget for maintenance and repairs.

Cost of building a new wastewater treatment station

The cost of constructing a new wastewater treatment plant can vary depending on many factors, including the size and capacity of the facility, the treatment process and technology used, site location, legal requirements and economic conditions. The total cost of constructing a wastewater treatment system is often detailed by the following costs:
1. The cost of designing a wastewater treatment plant can range from 5% to 15% or more of the total project cost and can vary significantly depending on a variety of factors, including the the complexity and scale of the plant, the process and treatment technology used, local regulatory requirements, environmental considerations and the level of detail and technical expertise required for Construction of wastewater treatment plant.
2. The cost of constructing a wastewater treatment plant can vary depending on many different factors, including the size and capacity of the treatment plant, the treatment process and technology used, and the location of the wastewater treatment plant. location, legal requirements, environmental considerations, labor and material costs, and economic conditions.
Calculation and design of wastewater treatment system:

Operational process of wastewater treatment system

The wastewater treatment process involves a series of physical, chemical and biological steps to remove contaminants and pollutants from wastewater, making it safe to release into the environment or reuse. for different purposes.
While specific processes and technologies may vary depending on facility design and local regulations, the general wastewater treatment process typically includes the following stages:
Preliminary wastewater treatment
Screening: Wastewater is passed through a filter system to remove large debris, such as sticks, leaves, plastic, and other objects.
Grits and heavy particles such as sand and gravel are deposited, usually in a sediment chamber.

Main processing

Wastewater is settled in large tanks (primary sedimentation tanks), where suspended solids and organic matter (sludge) settle to the bottom, forming a primary sludge layer.
1. Secondary treatment (Biological treatment)
Anaerobic treatment (without oxygen)
• Under the influence of microorganisms, complex organic substances will be transformed into simple or soluble substances (such as sugars, amino acids, fatty acids).
• Next, the bacteria will convert the above dissolved substances into simple substances such as volatile fatty acids, alcohols, lactic acid, methanol, CO2, H2, NH3, H2S and new biomass.
• Next to the above process is the Methaneification stage, this is the final stage of anaerobic decomposition of acetic acid, H2, CO2, formic acid, methanol to convert into methane CH4, CO2, and new biomass.
• For the anaerobic treatment process to be highly effective, it is necessary to ensure an absolutely oxygen-free environment, sufficient and balanced nutrients, appropriate temperature, PH from 6.5 – 7.5, and no toxic substances.

Aerobic treatment

• Aeration: During this stage, primary wastewater is mixed with microorganisms (activated sludge) in the aeration tank. Microorganisms consume organic matter, decomposing it into carbon dioxide, water and many other microorganisms.

2. Secondary cleaning
After aeration, the wastewater is allowed to settle in a secondary sedimentation tank, separating the remaining suspended solids (secondary sludge) from the treated water.
Filtration (Optional): Some treatment plants use additional filtration processes to remove fine particles and microorganisms.
3. Tertiary processing (advanced processing)
Tertiary treatment is used to further improve wastewater quality.
Methods may include advanced filtration with membranes, chemical treatment with chlorine, ultraviolet disinfection, and removal of nutrients typically with removal of phosphorus and nitrogen.
Sterilize
Wastewater is disinfected to kill or neutralize any remaining pathogens (bacteria, viruses, etc.) before being discharged. Common disinfection methods include chlorination, UV radiation or ozonation.

Sludge treatment

The sludge generated during primary and secondary treatment is separated from the water. The sludge treatment process includes:
• Anaerobic digestion: Microorganisms decompose organic matter in sludge in the absence of oxygen, producing biogas (methane) and stable sludge.
• Aerobic digestion: The sludge is treated with air and microorganisms to further stabilize it and reduce odors.
• Dewatering: Sludge is mechanically dewatered to reduce water content, making handling and disposal easier.
• Treatment or reuse: Treated sludge can be incinerated, landfilled, used as fertilizer, or have other beneficial reuse options.

Discharge or reuse wastewater

Treated wastewater (sewage) is discharged into a receiving water body (e.g., river, lake, ocean) or may be reclaimed for non-potable purposes such as irrigation, industrial processes or recharge groundwater.
4. Monitor and comply with environmental requirements
Throughout the process, wastewater treatment facilities continuously monitor wastewater quality to ensure it meets regulatory standards. Adjustments to the wastewater treatment process can be made as needed.
The wastewater treatment process is operated to remove impurities, pollutants and contaminants from wastewater treatment to protect public health, the environment and water resources. The specific treatment methods and technologies used may vary depending on the type of wastewater being treated (e.g., domestic wastewater, industrial wastewater) as well as the application of local environmental regulations local.

Current wastewater treatment systems

Urban domestic wastewater treatment system

Wastewater treatment in urban settlements is critical to maintaining public health, environmental sustainability and quality of life in cities. Urban residential areas generate wastewater mainly from households, including domestic wastewater and wastewater from various domestic activities.

Industrial wastewater treatment system

Industrial wastewater treatment is the process of treating and cleaning wastewater generated by industrial processes and facilities to remove contaminants, pollutants, and toxic substances, making it safe for use. discharged into the environment or can be reused.
Industrial wastewater can vary widely in composition, depending on the industry and processes involved, so treatment methods must be tailored to the specific contaminants present.
Industrial wastewater treatment systems can be applied in a number of basic areas:
• Food industry wastewater treatment
• Paper industry wastewater treatment
• Industrial wastewater treatment for chemical production
• Sugar industry wastewater treatment
• Wastewater treatment of fiber and textile industry
• Treatment of leather tannery industrial wastewater
• Landfill wastewater treatment.

Agricultural and livestock wastewater treatment

Agricultural and livestock wastewater treatment is essential to minimize environmental pollution and protect water resources from contamination by runoff from farms and livestock operations. These wastewater streams can contain a variety of pollutants, including organic matter, nutrients, pathogens, pesticides, and sediment.
Effective treatment reduces environmental impact and can lead to safe reuse of treated water for irrigation or other agricultural purposes.

Hospital wastewater treatment system

Hospital wastewater treatment is a specialized process designed to manage and treat wastewater generated by healthcare facilities, including hospitals, clinics, and medical research facilities. Hospital wastewater can contain a variety of contaminants, including pathogens, pharmaceuticals, chemicals, and biological materials, setting it apart from other types of wastewater. Effective treatment is important to prevent the release of toxic substances into the environment and ensure compliance with regulatory standards.

Maintenance process of wastewater treatment system

Wastewater treatment system maintenance procedures are necessary to ensure the system operates efficiently, meets regulatory requirements, and prolongs the life of the system. Regular maintenance prevents equipment damage, minimizes downtime and reduces the risk of environmental and operational problems. Below is an overview of the wastewater treatment system maintenance process:
1. Inspection and supervision:
Regularly inspect and monitor all components of the wastewater treatment system, including tanks, pipes, pumps, valves, instrumentation, electrical systems and structural components.
Use checklists and standard inspection procedures to identify signs of wear, damage, corrosion or malfunction.
2. Preventive maintenance:
Implement a preventative maintenance program based on equipment manufacturer recommendations, industry best practices, and historical data.
Create a maintenance schedule that includes routine tasks like lubrication, calibration, cleaning, and filter replacement.
3. Equipment lubrication:
Lubricate moving parts such as pumps, motors and bearings according to manufacturer specifications and recommended intervals.
Use appropriate lubricants and follow proper lubrication procedures.
4. Clean and remove debris:
Regularly clean screens, filters, and device surfaces to remove debris, sludge, and biofouling.
Pay special attention to aeration systems, where biofilm and sediment can reduce efficiency.
5. Calibration and checking:
Calibrate sensors, meters, and analytical instruments to ensure accurate measurement of water quality parameters (e.g., pH, dissolved oxygen, turbidity).
Conduct performance testing and analyze results to verify that the treatment system meets regulatory standards.
6. Repair and replacement:
Promptly resolve identified problems, such as leaks, faulty valves, broken pumps, or malfunctioning electrical components.
Replace worn or damaged parts with suitable replacement parts.
7. Chemical addition:
If chemical dosing is part of the treatment process (e.g., disinfection or pH adjustment), ensure that the chemical feed system is properly maintained and calibrated.
8. Safety check:
Regularly check safety devices, such as alarm systems, ventilation systems and emergency shutdown mechanisms to ensure they are operating correctly.
9. Sludge management:
Manage and remove sludge build-up from settling tanks, clarifiers and sludge dewatering equipment.
Properly handle and dispose of sludge according to regulatory instructions.
10. Training and Documentation:
Train maintenance staff on safety procedures, processes, and proper equipment operation and maintenance.