I. Wastewater Treatment System Construction Process

1. Survey and design

• Current status survey: Assess the quality of wastewater sources, flow, and pollution components.
• Preliminary design: Select appropriate treatment technology according to environmental standards.
• Detailed design: Determine the layout, treatment capacity, tank structure, and piping system.

2. Prepare for construction of water treatment system

• Apply for a building permit: Ensure compliance with local regulations.
• Prepare materials and equipment: Order materials such as concrete, steel, pumps, blowers, filters, etc.
• Mobilize manpower and machinery: Including excavators, trucks, concrete mixers, etc.

3. System construction and installation

• Rough construction:
  • Digging foundation, installing reinforced pile system if necessary.
  • Pouring concrete bottom of tank, building walls, pouring floor and installing steel structure.
• Installing equipment:
  • Pump, air blower, biological reaction tank, membrane filter system, control cabinet.
  • Water pipe system, air vent pipe, sludge drain pipe.
• Construction of pipes and water supply and drainage system.

4. Testing and trial operation

• Check the structure and tightness of the tank.
• No-load test: Evaluate the performance of the pump and aeration system.
• Load test: Put wastewater into the system to check the treatment efficiency.
• Adjust parameters to achieve optimal efficiency.

5. Official handover and operation

• Complete acceptance documents.
• Provide operation and maintenance instructions to the investor.
• Hand over the system and sign a maintenance contract (if any).

II. Some notes when constructing wastewater treatment systems

1. Ensure technical and legal standards

• Comply with environmental standards such as QCVN 40:2011/BTNMT.
• Supervise construction quality to avoid leakage and water seepage.

2. Choose the right treatment technology

• The treatment system must be suitable for the type of wastewater (domestic, industrial, medical…).
• Consider modern technology such as MBR, AAO, SBR… to optimize area and efficiency.

3. Ensure labor safety in construction of water treatment systems

• Provide full protective equipment for workers.
• Check electrical systems and machinery before operating.

4. Control progress and costs

• Closely monitor each stage to avoid delays.
• Plan post-delivery maintenance to maintain system performance.

The construction process of wastewater treatment systems requires precision and strict compliance with technical standards to ensure treatment efficiency and environmental protection.