SEDL Delivers 99% Water Recovery At One-Fourth The Cost

Spray Engineering Devices Ltd. (SEDL), a leading Indian clean-tech engineering company, has announced breakthrough results from its patented MVR (Mechanical Vapour Recompression)-based Low Temperature Evaporation (LTE®) technology, enabling industries to achieve Zero Liquid Discharge (ZLD) with up to 99% water recovery at one-fourth the cost of conventional systems.

Unlike traditional steam-based evaporators that drive up energy use and costs, SEDL’s LTE® technology recycles heat within the process, achieving clean water recovery at just 10–25 kWh/m³ while reducing sludge generation. The system also delivers a dry by-product (<10% moisture), which can be repurposed into value-added materials or safely disposed of, depending on the feedstock.

“India’s water challenge is not just about treatment, it is about enabling industries and cities to reclaim, recycle, and reuse water at scale,” said Vimarsh Verma, Director – Operations and Head of Water & Novel Applications at SEDL. “Our MVR-based LTE® systems are helping industries achieve water self-sufficiency while creating new revenue streams from by-products, making our approach both sustainable and profitable.”

SEDL’s solutions are already delivering measurable results across sectors:

• Electroplating: Hero Cycles (Ludhiana) achieved 91% recovery with 20–25 kWh/m³ power use, producing water clean enough for reuse (TDS < 250 ppm).
• Textiles: Garg Acrylics Ltd. (Ludhiana) and Indorama India Pvt. Ltd. (Baddi) achieved 97–99% recovery at significantly lower costs than steam-based systems, reducing TDS levels to 50–150 ppm.
• Pharma & Dyes: Systems ensure compliance with stringent effluent norms while reducing wastewater loads.
• Distilleries: High-strength spentwash is treated efficiently, enabling reuse and by-product valorisation.
• Beverage & Breweries: RO rejects are treated for water reuse, reducing dependence on groundwater.

The company’s ZLD and recovery solutions align with India’s Jal Shakti Abhiyan and Make in India missions by ensuring reliable water availability for manufacturing and supporting the ethanol blending program’s waste-to-wealth vision.

With recognition including the National Energy Efficiency Innovation Award (2021) and CII-National Award for Excellence in Water Management (2019), along with a granted Indian patent and DSIR accreditation, SEDL continues to demonstrate how clean-tech innovations can deliver both sustainability and profitability.