Spent Wash
Spent wash is one of the most difficult and highly polluted effluents generated mainly from distilleries during the production of alcohol, especially from molasses-based fermentation. It has a dark brown colour, high COD and BOD, and is loaded with organic matter, making it extremely harmful if left untreated. Traditional methods like bio-digestion, composting, or lagoon storage need huge land, long retention times, and still may not meet pollution norms. At SEDL, we offer a more compact, efficient, and sustainable solution to handle spent wash using our MVR-based Low Temperature Evaporation (LTE) system. Our technology helps recover clean water from this tough effluent — without using steam, chemicals, or biological treatment.
Challenges in Spent Wash
Very high COD and BOD
Due to fermentation residues and organic compounds.
Thick and dark colour
Making it hard to treat or reuse.
Foul smell and heat
That make storage and handling difficult.
Requires large space
For traditional methods like lagoons or composting.
Strict government norms
That demand Zero Liquid Discharge (ZLD).
Our MVR-Based Solution
At SEDL, we treat spent wash with a robust, compact, and chemical-free system:
No need for bio-treatment or huge composting land
High COD reduction and water recovery
Minimal power consumption with MVR
Small footprint — fits even in space-limited areas
Custom-engineered for your effluent load
Remote monitoring, quick maintenance, fully automatic system
Why Choose SEDL?
We help distilleries and alcohol plants achieve ZLD smoothly and sustainably.
Our systems are cost-effective in both CapEx and OpEx, thanks to very low energy use.
We ensure clean water recovery and reduce the environmental impact of spent wash.
No need of major civil work or chemical dosing.
With proven results, industries trust SEDL for simple and solid solutions.
Let’s turn this tough challenge into a clean success story — together with SEDL.