SED - Spray Engineering Devices Ltd Limited
SED - Spray Engineering Devices Ltd Limited

Paper & Pulp

Paper & Pulp

The paper and pulp industry consumes large amounts of water during pulping, washing, bleaching, and papermaking, generating high volumes of wastewater. The wastewater mainly comes from, residual liquid produce during pulp treatment know as black liquor, white water from paper machines, washing, screening and bleaching discharges

Sugar Mill Modern

Challenges in Paper & Pulp Effluent

Dark, odorous, and loaded with organic matter, chemicals, lignin and black liquor.

Presence of refractory and non-biodegradable compounds.

High COD and BOD.

High TDS and chemical load.

Large variation in effluent quality and flow.

High sludge generation.

SED’s MVR-based LTE® technology significantly reduces waste volumes, enabling a cost-effective and sustainable Zero Liquid Discharge (ZLD) solution.

SED Smart Solution

SED offers an integrated solution combining an advanced MVR based Low Temperature Evaporator (LTE®) with a downstream paddle dryer to effectively treat complex, black liquor from pulp & paper industry wastewater, ensures compliance with local regulations and all applicable environmental discharge norms.

Process Flow Diagram

Process Flow Diagram

**Zoom into critical process blocks for enhanced visibility, diagnostics, and plant-level understanding.

Key Benefits

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Specially designed to handle wastewater generating at various steps of paper manufacturing.

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Recovers clean water while minimizing sludge generation, enabling safe and cost- effective ZLD.

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Final dry reject can be incinerated in boiler as a fuel.

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Advance alkali recovery with low energy consumption.

"Cleaner Water, Greener Paper, Brighter Tomorrow."