This document discusses wastes generated from distilleries and their treatment. Distilleries produce alcohol from grains and molasses and generate large volumes of wastewater with high levels of COD and BOD. The wastewater includes spent wash, fermenter cleaning water, and floor wash. If untreated, it poses environmental hazards by depleting oxygen in water. The document outlines various physical, chemical, and biological treatment methods used to treat distillery wastewater, including anaerobic processes like UASB reactors and aerobic treatments like activated sludge.

1. Wastes from distilleries and their effective
treatment methodology
NITINJAY SINGH
ID- 17BTBIOCE011
BIOWASTE TREATMENT
(BCBE 408)

2. CONTENT
1. What are Distillery industry ?
2. What is Molasses ?
3. How Distilleries work ?
4. What kind of waste generated by distilleries ?
5. ENVIRONMENTAL HAZARDS OF DISTILLERY WASTEWATER
6. EFFLUENT GENERATED BY DISTILLERIES
7. TREATMENT OF EFFLUENT
8. UTILIZATION OF WASTE GENERATED BY DISTILLERIES

3. What are Distillery industry ?
• Distilleries are basically Alcohol producing Industries.
• Alcoholic industries uses different grains, Malted barley and Molasses as a raw material.
TYPES
• Beverage Alcoholic Industries
• Industrial Alcoholic Industries

4. FACTS ABOUT DISTILLERY INDUSTRY
• 88% of its raw materials are converted into waste.
• Total waste volume is 6O to 100 l per 1 l of alcohol produced.
• COD of 80–140 g/l, BOD of 40–65 g/l

5. Annual capacity and effluent generation of distillery industry

6. WHAT IS MOLASSES ?
• It is a byproduct in the sugar mill and contains residual sugar.
• Left after the crystallization of sugarcane juice.
• It is a dark colored viscous liquid.
• Molasses contains about 60% fermentable sugar.

7. How Distilleries work ?
Alcohol production in distilleries consists of four main steps
Feed preparation
Fermentation
Distillation
Packaging.

8. Process description

9. What kind of waste generated by distilleries ?
Spent lees
• Sediment in barrels or the remnants of a liquid left in container
Yeast sludge
• Collected at the bottom during fermentation.
Pot ale
• Pale yellow, with a malty, burnt cereal and yeast aroma
• Highly turbid

10. Characteristics of Different Waste

11. EFFLUENT GENERATED BY DISTILLERIES
 Spent wash (from distillation)
 Fermenter cleaning
 Fermenter cooling
 Condenser cooling
 Floor wash
 Bottling plant

12. ENVIRONMENTAL HAZARDS OF DISTILLERY WASTEWATER
• High BOD & COD content
• Change in pH of water
• Depletion of oxygen in water
• Metal contamination in ground

13. TREATMENT OF WASTE FROM DISTILLARY
Physical treatment
• Initial stage of effluent treatment
• Physical treatment is used to decrease suspended/settable solids
• Screening and sedimentation
Chemical treatment
Chlorine (Cl2), oxygen (O2), ozone (O3), and permanganate (MnO4)

14. Cont…
Biological Treatment
• Anaerobic treatment
• Aerobic treatment

15. ANAEROBIC TREATMENT

16. Anaerobic contact process (ACP)

17. Up-flow anaerobic sludge blanket reactor (UASB)

18. Anaerobic filter reactor (AFR)

19. Pretreatment of Distillery waste

20. AEROBIC TREATMENT
1. Tricking filters

21. Activated sludge

22. Aerated lagoon
•

23. Fungal Treatment

24. Algal Treatment

25. Phytoremediation

26. THANK YOU