Case Studies
Wastewater Treatment for Tunneling Projects in Chennai​
Wastewater treatment for tunneling project is more than just an engineering log—it’s a testament to how eco-conscious innovation can drive infrastructure forward. When Chennai’s metro tunneling faced environmental challenges due to high-turbidity wastewater, engineering giant Larsen & Toubro (L&T) turned to Pervel for a practical, fast-acting, and sustainable solution.
Tackling the Hidden Challenge Beneath the City
Tunneling isn’t just a marvel of concrete and steel—it runs on vast amounts of water used to lubricate tunnel boring machines. But once used, this water becomes a cocktail of chemicals and sludge, especially with bentonite and polymer-based compounds in play.
In Chennai, the tunnel boring operations produced wastewater with dangerously high turbidity, raising red flags for ecosystem damage if released untreated. The CPCB’s environmental standards stipulated speedy action—and Pervel stepped in.
The Solution: Coagulation Method for High Turbidity Water
Pervel’s team applied the coagulation method for high turbidity water, a reliable and eco-approved approach that separates suspended particles by clumping them into heavier flocs that settle easily.
The process involved:
- Careful coagulant dosing approved by environmental councils
- Rapid mixing to trigger binding of particles
- Settling and clarification in tanks
- Filtration to achieve safe, reusable water quality
- Zero environmental discharge risk
This field-level setup transformed chemical-laden slurry into clear water safe for release or reuse—without halting L&T’s tunneling timeline.
Why This Matters for Tunneling Projects
Wastewater treatment for tunneling projects is often overlooked in metro infrastructure discussions, but it’s critical. Mishandling high-turbidity water can lead to:
- Groundwater contamination
- Aquatic ecosystem damage
- Regulatory penalties and work stoppages
By setting up quick action units and onsite management, Pervel guaranteed:
- 100% compliance with eco-norms
- Zero delays in tunneling workflow
- Safe water reintroduction into the environment
Results That Speak for Themselves
✅ Turbidity reduced from 1000+ NTU to <5 NTU
✅ Instant approval by environmental auditors
✅ Flawless field demo by Pervel’s senior technician
✅ L&T recognized the innovation and timely execution
Pervel’s Sustainable Edge
At Pervel, we don’t just offer industrial STP and ETP systems—we specialize in customized wastewater solutions for specialized sectors like tunneling, pharmaceuticals, and textile industries.
From decentralized biotreatment to advanced coagulation techniques, our field-ready methods adapt to your challenges instantly.
Final Words
This case study on wastewater treatment for tunneling projects is proof that advanced chemical treatment, sustainability, and speed can co-exist. With the right expertise and environmental ethics, turbid wastewater is no longer a liability—it’s a solvable challenge.
🌱 Let’s engineer better ecosystems—together.
📞 +91 98418 58710 | 📩 support@pervel.in
