Engineering Solutions for Every Treatment Challenge
Comprehensive engineering support across the full lifecycle of water and wastewater treatment — from process calculations to construction-ready drawings and full automation. Every deliverable is precise, compliant, and built for global standards.
A Structured, Transparent Engineering Process
From first call to final sign-off, every project follows five clear steps.
Discovery Call
We understand your plant type, capacity, location and regulatory environment to scope the project precisely.
Data Collection
You share effluent/influent characteristics, flow rates, site conditions and any existing drawings or studies.
Process Design
We develop process design calculations including mass balances, unit sizing, technology selection and chemical requirements.
Drawing Deliverables
We produce the agreed drawing set — PFD, P&ID, layout, hydraulic — in AutoCAD and Stat Pro formats.
Review & Revisions
Deliverables are shared for review; we incorporate feedback and issue the final signed-off version.
Industry-Standard Tools, Globally Compatible Deliverables
AutoCAD
All PFD, P&ID, layout, structural and hydraulic drawings produced in AutoCAD, the global drafting standard.
Stat Pro
Specialist process drawing and documentation for accurate, structured engineering outputs.
PLC Programming
Logic design and programming for treatment plant automation.
Pneumatics Design
Engineering of pneumatic control systems for valves, actuators and instruments.
Frequently Asked Questions
What types of water treatment plants does SMRS Infra design?
SMRS Infra provides process design and engineering for the full spectrum of water and wastewater treatment systems — including Water Treatment Plants (WTP), Sewage Treatment Plants (STP), Effluent Treatment Plants (ETP), Zero Liquid Discharge (ZLD) plants, Reverse Osmosis (RO) systems, and industrial cooling water circuits.
Do you work with international clients outside India?
Yes. SMRS Infra operates a fully remote-delivery model, which means we serve EPC contractors, consultants, industries, and municipalities anywhere in the world. Our deliverables are produced in AutoCAD and Stat Pro to international engineering standards and are suitable for global project submissions.
What drawing types and deliverables do you produce?
Our engineering drawing scope covers Process Flow Diagrams (PFD), Piping & Instrumentation Diagrams (P&ID), plant layout drawings, hydraulic profile drawings, equipment arrangement drawings, and structural drawings. All files are delivered in editable AutoCAD (.dwg) format along with PDF prints.
How long does a process design calculation project typically take?
Timelines depend on plant complexity and scope. A standalone process design calculation report for a single plant — covering hydraulic loading, unit sizing, chemical dosing, and mass balance — typically takes 5–10 working days. Complete PFD and P&ID packages for a multi-unit plant may take 2–4 weeks.
Can SMRS Infra handle both the process design and the PLC automation for the same project?
Yes. SMRS Infra has in-house capability across the full engineering lifecycle — process design calculations, construction-ready drawings, and PLC/pneumatic automation design. This means one engineering partner manages the process logic and the control system, reducing coordination overhead and ensuring consistency across deliverables.
What information do you need to start a project?
To prepare a proposal, we typically need: the type of treatment plant (WTP, STP, ETP, ZLD, RO), the design flow capacity (m³/day or m³/hr), the raw water or influent quality data, the required effluent quality standards, and the project location or applicable regulatory norms. For automation projects, existing P&IDs or equipment lists are helpful.
Have a Project in Mind?
Share your requirements and receive a tailored engineering proposal — globally delivered, expertly designed.
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