Job Description

- Design Engineer (Dissolved Air Flotation Systems)

Position Title: Design Engineer - DAF (Dissolved Air Flotation) Systems

Department: Engineering & Design

Location: [Your Location]

Reporting To: Engineering Manager / Project Manager

Role Overview

We are seeking a skilled

Design Engineer

with expertise in

Dissolved Air Flotation (DAF) systems

used in water and wastewater treatment. The role involves developing

process and mechanical designs

, preparing

PFDs, P&IDs, equipment layouts, and piping designs

, and supporting fabrication, installation, and commissioning activities. The ideal candidate will have strong knowledge of DAF principles, process sizing, and mechanical integration for industrial and municipal applications.

Key Responsibilities

Process Design

Develop

Process Flow Diagrams (PFDs)

and

P&IDs

specific to DAF systems. Perform

process calculations

for sizing pumps, compressors, saturators, tanks, skimmers, and piping. Select appropriate

air saturation and pressurization systems

for dissolved air injection. Design sludge removal and scum collection mechanisms.

Mechanical & Piping Design

Prepare

general arrangement drawings, fabrication drawings, piping layouts, and isometrics

. Develop mechanical designs for

DAF tanks, scrapers, skimmers, and pressurization systems

. Ensure compliance with relevant standards (ASME, IS, ANSI, API). Coordinate with fabrication teams for manufacturability and cost optimization.

Documentation & Coordination

Prepare

equipment datasheets, technical specifications, and BOMs (Bill of Materials)

. Support procurement with vendor evaluations and technical clarifications. Assist project and site teams during

installation, testing, and commissioning

. Collaborate with clients, consultants, and internal teams for approvals.

Innovation & Development

Support R&D in optimizing

DAF design efficiency, footprint reduction, and automation

. Integrate

chemical dosing systems

(coagulants, flocculants) with DAF units. Develop modular/containerized DAF designs for quick deployment.

Key Skills & Competencies

Strong knowledge of

DAF process design principles

(air-to-solids ratio, recycle pressurization, bubble size distribution). Hands-on experience with

AutoCAD, SolidWorks, or similar CAD tools

. Familiarity with

piping design and fluid mechanics

. Knowledge of

water/wastewater treatment processes

(ETP, STP, MBR, RO, ZLD) preferred. Strong analytical, problem-solving, and documentation skills. Ability to coordinate across design, production, and project teams.

Qualifications

B.E./B.Tech/M.E./M.Tech

in Mechanical / Environmental / Chemical Engineering.

3-6 years

of experience in

designing water/wastewater treatment systems

, with a focus on DAF preferred. Experience in

fabrication design, process sizing, and piping layouts

.
Job Type: Full-time

Pay: ₹25,000.00 - ₹35,000.00 per month

Benefits:

Food provided
Work Location: In person