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Bio-Methanated Spent Wash Chemoremediation System

Advanced Treatment Solution for Distillery Effluent Management

The Patented Bio-Methanated Spent Wash (BMSW) Chemoremediation System is a scientifically engineered, multi-stage treatment solution designed to significantly reduce COD, BOD, colour, odour, and organic loads in distillery wastewater after biomethanation.

The system integrates chemical oxidation, catalytic reactions, biological polishing, and tertiary filtration, ensuring that treated effluent meets the latest norms for safe reuse, irrigation, or zero-liquid discharge (ZLD) operations.

It is suitable for molasses-based, grain-based, and multi-feed distilleries, offering a reliable, robust, and energy-efficient treatment for high-strength effluent.

Spent Wash Chemoremediation

Key Features

 High Treatment Efficiency – Achieves significant reduction in colour, COD & odour

Zero Liquid Discharge

Modular, Compact & Scalable design

Low Operating Cost compared to thermal treatment routes

High chemical reaction efficiency with optimised dosages

Continuous & Automated Operation with PLC-based control

Environment-friendly – Maximum sludge (manure generation)

Multi-Stage Chemoremediation – Oxidation + neutralisation

Applications

Widely used in distillery and agro-processing industries:

Bio-methanated spent wash (BMSW) polishing

Spent wash colour & COD reduction

Distillery effluent pre-treatment for ZLD

Effluent polishing for irrigation / reuse for fermentation.

High-strength waste water conditioning

Process Description

The chemorediation system works on a scientifically defined combination of aeration, settling, and filtration.

Feed Equalization

BMSW is homogenised for stable inlet characteristics.

Chemical Oxidation Reaction

Controlled dosing of oxidants, catalysts, and pH regulators breaks complex organics, colour bodies, melanoids, and phenolic compounds.

Catalytic Reaction Stage

Enhances oxidation kinetics and ensures maximum breakdown of organic molecules.

Neutralization & Coagulation

Adjusts pH and destabilises colloidal particles for easy settling.

Flocculation & Clarification

DAF system that separate suspended solids and sludge.

Aeration / Bio-Polishing

Biological polishing to remove residual BOD/COD.

Tertiary Filtration

 Sand filter, carbon filter, or pressure filter for final polishing.

Reuse

Treated water can be reuse for the process

Technical Specifications

Parameter
Specification / Range
Input Effluent
Bio-methanated spent wash (BMSW)
COD Reduction Efficiency
95–99% (chemically), >85% with bio-polishing
pH Operating Range
6–9.0 (adjusted based on chemistry)
Flow Capacity
0 m³/day – 2500 m³/day and above
Automation
Manual / Semi-Auto / PLC-based full automation

Advantages

01

Highly effective for difficult-to-treat organic compounds

02

Lower OPEX compared to thermal / evaporative processes

03

Customisable chemistry based on inlet characteristics

04

Reduced scaling and fouling in downstream ZLD equipment

05

Proven technology used across multiple distilleries

Why Choose Our System?

Turnkey project capability – design, supply, installation, commissioning

 Custom-engineered for your feed characteristics

Reliable performance with guaranteed results

Experienced in distillery wastewater treatment

Strong technical support & AMC services

Fast installation with compact footprint

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