Product - Wastewater Treatment Solutions

Treatment for Distilleries

WATER TREATMENT FOR DISTILLERIES

The most efficient and cost effective system for concentrating spentwash to achieve zero discharge

FEATURES

Up to 70% reusable permeates reducing load compositing/evaporation
Reduced pressmud and land requirement
Established applications on both raw and biomethanated
Over 30000m³ of spentwash treated every day

Parameter	Raw feed	Rochem Treated
TDS (PPM)	30000	< 50
COD (PPM)	50000	< 70
BOD(PPM)	12000	< 26
Recovery	70% - 80%

CASE STUDY

Background: The spentwash from the unit was being treated in the facility was inadequate to meet discharge standards.

Besides, there was a requirement to reduce effluent loads through wastewater recovery for recycle/reuse. Distilleries water treatment

Plant installed: Rochem RO-PF System (PLC based for fail safe unattended operation)

Input: 1200 cum/day of post-biomethanation effluent

Recovery Rate: 55% by RO & -30% by NF (the reject from the RO is fed to the NF modules to obtain colorless permeate)

Plant Performance

Parameter	Unit	RO Input	Permeate Output	NF Output
Flow	cum/day	12000	600	340
Colour		Dark Brown	Colorless	Colourless
TDS	ppm	45000 (total) 24000 (Inorganic)	< 500	< 100
COD	ppm	45000	< 70	< 70
BOD	ppm	10000	< 30	< 30
TSS	ppm	2000	Nil	Nil

Salient Features

The combination of the above treatment scheme with composting has resulted in the unit achieving zero discharge for the 1200 m³ effluent fed through the system.

The installation is now being increased to handle a volume of 2400 m³/day

General Parameters for Distillery Units

Parameter	Bio-methanated Spentwash		Raw Treated
	Feed	Thread	Feed	Thread
TDS (ppm)	3000 - 5000	< 50	35000 - 55000	< 45
COD (ppm)	40000	< 72	120000 - 16000	< 70
BOD (ppm)	12000	< 30	60000-75000	< 30
Recovery	50% & NF 20%		40% & NF 20%