Bamroli TTP: 40 MLD UF-RO Reuse Plant

India's First Large-Scale Municipal Sewage-to-Industrial Water Reuse Project
Location

Bamroli, Surat, Gujarat, India

Procedure

Design, Build & Operate (DBO) Tertiary Treatment Plant

Contract Type

Turnkey DBO (with O&M)

Capacity

40 MLD (Net Output of High-Quality Industrial Water)

Bamroli Tertiary Treatment Plant: Pioneering 40 MLD Sewage Reuse with UF-RO Technology

Commissioned in 2014 for Surat Municipal Corporation, this groundbreaking project established India’s first large-scale municipal sewage reuse facility. The 40 MLD Tertiary Treatment Plant (TTP) processes secondary treated sewage from the adjacent Bamroli STP using advanced Ultrafiltration (UF) followed by Reverse Osmosis (RO) membranes to produce high-purity industrial-grade water.

With stringent output standards (e.g., TDS <420 mg/L, BOD <2 mg/L, Color <5 Hazen), the treated water is supplied to textile and dyeing industries in Pandesara and Sachin estates — reducing freshwater demand, generating revenue for SMC, and setting a national benchmark for sustainable wastewater recycling and circular economy practices in urban India.

Transforming Sewage into Valuable Industrial Resource

Core goals:

  • Recycle secondary treated sewage into high-quality water for non-potable industrial use, alleviating groundwater stress in Surat’s textile hub.
  • Achieve ultra-low contaminant levels via UF-RO multi-barrier treatment for reliable, consistent industrial-grade output.
  • Establish a scalable model for municipal sewage reuse, demonstrating economic viability through revenue from water sales.
  • Minimize environmental impact by reducing freshwater abstraction and promoting responsible water management.
  • Lay the foundation for Surat’s expanded reuse network (now 115 MLD across phases/sites).

Delivering High-Purity Reuse in a High-Volume Municipal Setting

Key hurdles:

  • Handling variable secondary effluent quality from municipal sewage for consistent UF-RO performance.
  • Preventing membrane fouling/bio-fouling in a large-scale (40 MLD) system under continuous operation.
  • Ensuring economic feasibility — balancing capital/O&M costs with revenue from industrial users.
  • Integrating advanced membrane tech (UF pre-treatment + RO) without disrupting existing STP operations.
  • Meeting stringent quality specs for sensitive textile processes while scaling to pioneer status in India.

Advanced UF-RO Multi-Barrier System with Automated Operations

Deployed a robust tertiary train: UF as pre-treatment for suspended solids/microbial removal, followed by RO for dissolved salts/TDS reduction, plus chlorination for bio-fouling control and activated carbon (if applied) for polishing.
Highlights:

  • High-recovery UF modules (e.g., DuPont PES in-out configuration) to maximize permeate and minimize reject.
  • Fully automated SCADA-based controls for remote monitoring, consistent performance, and lifecycle optimization.
  • Modular design for rapid deployment and future scalability (inspired Phase II 35 MLD expansion).
  • Pretreatment safeguards and chemical dosing to extend membrane life and ensure <420 mg/L TDS output.

This delivered reliable, revenue-generating reuse aligned with Surat’s sustainability leadership.

Feasibility & Planning

Site assessment, secondary effluent characterization, and design for 40 MLD UF-RO to meet industrial standards.

Design & Technology Selection

Detailed engineering of UF pre-treatment + RO system, membrane sizing, recovery optimization, and SCADA integration.

Construction & Installation

EPC execution — membrane skids, piping, pumps, automation, and tie-in to Bamroli secondary STP with minimal disruption.

Commissioning & Optimization

Startup, membrane conditioning, performance tuning, quality validation, and handover to O&M phase.

Operation & Impact Validation

Continuous monitoring, revenue generation from sales, compliance audits, and model for national replication.
Stage One
Stage Two
Stage Three
Stage Four
Stage Five

Project Partners

Fostering high-impact collaborations to deliver resilient environmental infrastructure and localized engineering excellence.
Surat Municipal Corporation (SMC)
Enviro Control Pvt. Ltd.

Interested in learning more about our water treatment expertise?

Contact Our Team

Explore the Insights

Access our latest research, reports, and environmental guides.