Environmental & Process Design Engineer

Over a career spanning more than 20 years, I have developed deep technical expertise in process and design engineering for water, wastewater, desalination, DM, ZLD, and industrial effluent treatment systems.

My work bridges the gap between engineering precision and sustainable design, supporting clients from concept development to final project delivery. I collaborate with EPC companies, consultants, and industries across the Water and Power sectors, ensuring optimized, reliable, and cost-effective solutions.

⚙️ Core Expertise

Water Treatment Plants (WTP)

Sewage/Wastewater Treatment Plants (STP, WWTP, ETP)

Sea Water Reverse Osmosis (SWRO) & Brackish Water RO Systems

Demineralization (DM) and PTDM Systems

Recycle & Reuse Systems, ZLD Plants

VOC and Odour Control Systems Technical Skills

Process design, hydraulic calculation, and equipment sizing

Preparation of PFDs, P&IDs, and hydraulic flow diagrams

Design Basis Report (DBR), datasheets, and technical specifications

BOQ generation, cost estimation, and techno-commercial proposals

Vendor quotation analysis and multidisciplinary coordination

Preparation of engineering drawings and layouts

Process optimization for energy and chemical savings

📄 Key Deliverables

Design Documents: Process flow diagrams, mass balance sheets, datasheets, and P&IDs

Engineering Drawings: Equipment layout, hydraulic profile, and GA drawings

Commercial Support: BOQ, cost estimation, and bid documentation

Reports: Design basis, process description, and proposal documentation

💼 Representative Project Experience

(Use indicative examples; no confidential details required)

1. 10 MLD Water Treatment Plant – Thermal Power Project

Complete process and hydraulic design

Preparation of DBR, equipment sizing, and P&ID development

2. 500 KLD Industrial Wastewater Treatment & ZLD System

Design of MEE, RO, and evaporator sections

BOQ generation and cost estimation for EPC proposal

3. 2 MLD Sewage Recycle & Reuse Plant for Industrial Township

Process design, system optimization, and energy-efficient configuration

4. 1 MLD SWRO Desalination Plant – Coastal Industrial Facility

Reverse osmosis system design and vendor coordination

🧰 Software Tools

AutoCAD

MS Excel (Design Calculations, BOQ)

MS Project / Primavera (Project Scheduling)

WaterCAD / Design Utilities (as applicable)

🏆 Professional Strengths

Proven record of delivering optimized and compliant process designs

Cross-functional coordination with mechanical, civil, electrical, and instrumentation teams

Skilled in preparing complete tender and proposal documentation

Strong analytical, communication, and problem-solving skills

Reliable, detail-oriented, and committed to technical excellence

🌐 Service Offering (as Freelancer)

Providing remote design and engineering support for:

Conceptual and detailed design of WTP/STP/WWTP/SWRO/DM/ZLD systems

Preparation of technical drawings, BOQs, and design documentation

Technical bid support

Work Terms

Work Terms
1. Engagement Model
• Projects can be taken on a fixed-price or hourly basis, depending on scope and deliverables.
• A detailed proposal and scope of work (SoW) will be shared before commencement for mutual agreement.
2. Communication
• Primary communication through mail / WhatsApp / Zoom/Botim, as convenient to the client.
• Weekly or milestone-based updates will be provided to ensure full transparency.
3. Deliverables
• All deliverables (drawings, designs, calculations, reports, etc.) will be submitted in agreed formats (PDF/DWG/DOCX/Excel, etc.).
• Draft versions will be shared for review; final submission after client approval.
4. Timelines
• Timelines are mutually agreed before project start.
• Any delay due to client input or scope change will be communicated promptly, and schedules will be revised accordingly.
5. Revisions
• Up to two rounds of reasonable revisions are included to align with client expectations.
• Additional revisions or major scope changes will be billed separately.
6. Confidentiality
• All client data, drawings, and project information will be treated as strictly confidential and used solely for project purposes.
7. Payment Terms
• For Fixed Projects:
o 30% advance on award of project.
o 40% after first draft / milestone submission.
o 30% after final delivery and client acceptance.
• For Hourly Projects:
o Weekly or milestone-based invoicing as per recorded hours.
• renumeration through Bank Transfer.
8. Ownership of Work
• Upon full payment, the intellectual property and design ownership are transferred to the client.
• Drafts and preliminary calculations remain property of the freelancer unless otherwise agreed.
9. Support
• Post-delivery support for minor clarifications or implementation assistance (within 15 days) is included.
• Extended technical support or operational guidance can be provided under a separate service agreement.
10. Cancellation Policy
• Either party may terminate the project with written not