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Nile Brewery Ltd. In-plant Water CP-assesment

Agenda. The assignmentMethodologyOverall Material BalanceProcess flow chart for waterEvaluate inputs and outputs and select audit focusWaste generation causes and potential solutionsConclusion. The assignment of Danbrew. . UN Environmental Programme have asked Danbrew to perform In-Plant CP

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Nile Brewery Ltd. In-plant Water CP-assesment

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    1. Nile Brewery Ltd. In-plant Water CP-assesment January 19th, 2007 Richard Harrow 6 Steffen Wissing Danbrew

    2. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    3. The assignment of Danbrew UN Environmental Programme have asked Danbrew to perform In-Plant CP-assessments with a focus on water saving and waste water. This is part of the a UN water saving initiative within the African brewery sector (The Abrew project). This project will Identify the potential for water savings in the African brewery sector and suggest solutions. Develop a UN project for external funding for implementing water conservation measures in the brewing sector and subsequently in the entire beverage sector in Africa. The preliminary assumption of the project is that water usage is 32 hl water per 1 hl beer. If so the water saving potential is 1.7 billion hl. l Cleaner Production methods are assumed to generate savings of 20 to 50%.

    4. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    5. Solutions within the CP concept No part of the solution must be seen isolated

    6. What will we be looking after ?

    7. UN CP assesment UNEP Technical report N 33 p. 101 Environmental Management in the Brewing Industry Abrew water assesment

    8. Project organisation for Nile Brewery CP water assesment Nile Brewery Technical Director Trevor Gray Utility Manager Joseph Lubuulwa Brewing Manager Moses Musisi Packaging Manager Isaac Ongora Danbrew Senior Consultant Richard Harrow Senior Consultant Steffen Wissing UN Programme Manager Niclas Svenningsen UCPC Technical Officer Edgar Mugisha

    9. Sources of information Interviews Org. Chart Meter readings ISO 14000 plan from 2004. Water balances for each area (Brewhouse, Packaging, Cellars, Filtration) Observations

    10. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    11. Material Balance for a Typical Brewery High Consumption

    12. Material Balance for a Typical Brewery Low Consumption

    13. Water balance for Nile Brewery Medium Water Consumption

    14. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    15. Schematic Layout of a brewery

    16. Schematic Layout of Nile Brewery

    17. Water flow of Nile Brewery

    18. Water flow of Nile brewery in UN CP Brewery model

    19. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Planed Nile Breweries Initiatives Conclusion

    20. Water usage from 2004 until 2006

    22. Detailed Water Balance of Nile Brewery

    23. Focus areas There is potential of sawing water in all areas, but the potential is more in the Brewhouse and Beer Process than in Packaging. Beer losses are higher than perhaps they should be. This loss is especially in the Brewhouse and in the Cellars. High water loss in the Cellars could well be due to the current CIP. (Is there also a high beer loss during transfer to filtration) To reduce this can one accept a small dilution factor before the high gravity brewing dilution point. I.e. chasing with deaerated water. Packaging. What to do with the vacumpump water. Whith water is used for domestic an garding purpuses, which is upto a 100.000 hl a year. Discussion

    24. Water cost If Nile brewery was paying same price for water as others in Jinja the prices would be one shilling per litre or 320.000 $ a year and the attached waste water fee would be 75% of this amount: The total water fee would be 560.000 USD a year. Nile Brewery has a free concession to pump water from the Nile. So the only cost associated to water supply is chemicals, electricity and maintenance which is estimated to be less than 40.000 USD a year or less that 0,01 USD per hl.

    25. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    34. Brewhouse and Cellars Maybee the disposal af yeast to the drain is the root cause of the higher beer losses.

    36. Agenda The assignment Methodology Overall Material Balance Process flow chart for water Evaluate inputs and outputs and select audit focus Waste generation causes and potential solutions Conclusion

    37. Theoretical potential saving is just under that 2 m hl/year or 40% for Nile Brewery UN assumption of Afican breweries using 32 hl water per hl Beer can not be confirmed UN assumption of savings 20 to 50% can be confirmed

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