Job Title: Mechanical Design Engineer – Sewerage Treatment Plant (STP)

Experience: 8+ years

Location: Chennai

Industry: STP/Water Treatment/RO

Job summary: A Mechanical Design Engineer working in a sewerage treatment plant (STP) is responsible for designing, selecting, and supporting the installation of mechanical equipment used to treat wastewater safely and efficiently

1. Design Responsibilities-

- Design mechanical systems used in wastewater treatment processes.

- Prepare equipment layouts, piping layouts, and mechanical drawings.

Design systems for:

- Pumps

- Blowers

- Mixers

- Screens

- Sludge handling equipment

- Aeration systems

Ensure designs meet project specifications, environmental regulations, and safety standards.

2. Equipment Selection-

- Select suitable equipment based on plant capacity and process requirements.

- Evaluate vendor technical specifications.

- Prepare technical data sheets for equipment procurement.

- Review supplier drawings and approve them.

3. Engineering Calculations-

Perform calculations for:

- Pump sizing

- Pipe sizing

- Flow rates

- Pressure losses

- Power requirements





- Ensure equipment efficiency and reliability.

4. Drawings and Documentation-

Prepare and review:

- Material Submittal preparation

- Mechanical General Arrangement (GA) drawings

- Piping and Instrumentation Diagrams (P&ID;)

- Equipment layout drawings

- Fabrication drawings

Use software like:

- AutoCAD

- SolidWorks

- Autodesk Inventor

5. Coordination-

Coordinate with:

- Civil engineers

- Electrical engineers

- Process engineers

- Contractors

Ensure mechanical systems integrate properly with plant structures and controls.

6. Site Support-

Provide technical support during:

- Equipment installation

- Commissioning

- Testing

Key Skills Required:

- Mechanical system design

- Knowledge of wastewater treatment processes

- CAD software proficiency

- Equipment sizing and selection

- Understanding of piping systems

- Project coordination skills

Typical Employers:

- Environmental engineering companies

- Water utility companies

- EPC contractors

📌 Sr. Mechanical Design Engineer (Chennai)
🏢 Xperteez Technology
📍 Chennai