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:

o Pumps

o Blowers

o Mixers

o Screens

o Sludge handling equipment

o 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:

o Pump sizing

o Pipe sizing

o Flow rates

o Pressure losses

o Power requirements

- Ensure equipment efficiency and reliability.





4. Drawings and Documentation

- Prepare and review:

o Material Submittal preparation

o Mechanical General Arrangement (GA) drawings

o Piping and Instrumentation Diagrams (P&ID;)

o Equipment layout drawings

o Fabrication drawings

- Use software like:

o AutoCAD

o Solid Works

o Autodesk Inventor

5. Coordination

- Coordinate with:

o Civil engineers

o Electrical engineers

o Process engineers

o 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

📌 Sr. Mechanical Design Engineer (India)
🏢 New Revive Green Technology Water Purification
📍 India