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Water Balance of 120 KLPD Molasses Distillery

Water Balance of 120 KLPD Molasses Distillery. PRESENTED BY K.P.SINGH (DIRECTOR) RADICO KHAITAN LTD. Water Balance of 120 KLPD Molasses Distillery.

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Water Balance of 120 KLPD Molasses Distillery

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  1. Water Balance of 120 KLPD Molasses Distillery PRESENTED BY K.P.SINGH (DIRECTOR) RADICO KHAITAN LTD

  2. Water Balance of 120 KLPD Molasses Distillery • Distillery is among the major water consuming industries. However major part of this water can be recycled back and reused resulting in reducing the requirement of fresh water to about 50% and achieving practically zero liquid discharge from the industry.

  3. Water Consumption of a typical 120 KLPD Distillery • Total water Outputs • Section - Unit - M3 / Day • Fermentation • For Dilution - 994 m3 • In cooling tower - 200 m3 • In fermentor washing - 25  m3 • In air blower -12 m3 • Total in Fermentation- 1231 m3 • Distillation • In cooling water make up - 676  m3 • In vacuum pump - 144 m3 • Scrubber- 57 m3 • In fusel oil decanters – 19 m3 • D.M. water for dilution – 190 m3 • Total in Distillation – 1086 m3

  4. Water Consumption of a typical 120 KLPD Distillery • E.T.P • Gas washing – 10 m3 • Decanters cleaning - 15 m3 • R.O. plant rinsing - 30 m3 • Cooling water – 50 m3 • Total IN ETP - 105 m3 • Co-generation • Feed water – 432 m3 • Boiler blow down – 10 m3 • Turbine cooling water - 60 m3 • Total in ETP and Co- Gen. – 502 m3

  5. Water Consumption in 120 KLPD Distillery • Bottling & Others • Bottle washing – 168 m3 • For blending -35 m3 • Drinking & Toilets -10 m3 • In D. M. water re-regeneration – 50 m3 • In Water softener for re-regeneration -40 m3 • Total in Bottling & Others - 303  m3 • GRAND TOTAL IN ALL SECTIONS – 3227 m3

  6. Water Recycle Streams • Water Recycle Streams In Process Section Unit M3 / Day • Fermentation – • Spent lees in fermentation after Cooling - 315 m3 • RO Permeate in Fermentation after ultra filtration – 680 m3 • Distillation • Vacuum Pump water into cooling tower -144  m3

  7. Water Recycle Streams In Process • Co-generation • Steam condensate in boiler – 384 m3 • Boiler blow down water in ash quenching-10 m3 • TOTAL in Co-Generation -394 m3 • Bottling & Others • Washing water of bottling back to raw water tank through fine filters - 158  m3 • Water Recycling to Other Than Process Gardening   • Filter backwash water in gardening- 10 m3 • D.M. & softener regeneration water for gardening after neutralization - 90 m3 • Cooling Tower blow down for gardening -36 m3 • TOTAL- 136 m3 • GRAND TOTAL -  1669 M3

  8. Water Recycling Streams • After recycling the given streams with either passing through Reverse Osmosis and ultra filtration ( In Case of Sp. Wash ) or normal fine filtration ( In case of Bottle Washing) etc , about 50% of the water requirement can be met with reprocessed / recycled water. The use of fresh water is required for following only.

  9. Fresh Water requirement • Consumption delails of the fresh water Section • Unit M3 / Day • Fermentation • Fermentation cooling Tower Make Up - 200 m3 • Fermenter washing – 25 m3 • Air blower cooling -12 m3 • TOTAL in fermentation – 237 m3 • Distillation • Distillation cooling water make up - 676 m3 • Vacuum pump - 144 m3 • Scrubber - 57 m3 • Fusel oil decanter – 19 m3 • D.M. water for dilution - 190 m3 • TOTAL in DISTILLATION-  1086

  10. Fresh Water Requirement • E.T.P • Gas washing – 10 m3 • Decanter cleaning – 15 m3 • RO plant rinsing – 30 m3 • Cooling tower make up – 50 m3 • TOTAL IN ETP – 105 m3 • Co-generation • Boiler feed water – 48 m3 • Turbine cooling tower make up – 60 m3 • TOTAL in CO-Generation -108 m3

  11. Fresh Water Requirement • Bottling & Others • Blending – 35 m3 • Bottle washing- 10 m3 • Domestic -10 m3 • Filter backwash water in gardening -10 m3 • D.M. & softener regeneration water for gardening after neutralization - 90 m3 • TOTAL in Bottling & Others- 155 m3 • GRAND TOTAL -  1691.0M3 • Total Intake of fresh water m3 / Day1648.0 •  Fresh water required m3/ KL - 14.0 m3

  12. Water Balance of 120 KLPD Distillery • From the above it is observed that if managed properly the 50% water requirement out of about 27 m3/ KL of Spirit Production can be met with recycled water and fresh water is required only about 14 m3 / KL of Alcohol production including water required for bottling purposes. • Recycled water can satisfy most of the water demands, as long as it is adequately treated to ensure appropriate water quality for use.

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