Assessment of Brewery Wastewater and Potential Inline Practices to Curb Wastewater from Breweries
Babu Aremanda, R | Tekleweyni, D | Ghebregziabher, S | Tuquabo, A
Beer brewing appertains to the extraordinary quality of water accompanying greater volumes of consumption, consequently rendering preeminent amounts of waste. Apart from technological demand, mental barriers predicate significant causes for the huge quantities of wastewater generated from breweries. However, by adopting best management practices, modern plants have succeeded to restrict water consumption up to 3.7 - 4.7 L/L of beer sold. Currently, Asmara Breweries (ABCSC) of Eritrea alone produces approximately 150,000 bbls of beer/year, and a weekly survey is organized to perceive the brewing process intensely to assess the critical performance indicators such as water use ratio and wastewater discharge ratio. Approximately, 14% of excess annual water consumption acquainted against BA benchmarks and wastewater to freshwater is estimated as 0.872 while BA benchmark at 0.55. Chase water and bottle cleaning water collectively contribute to 84% of total effluents. Direct reuse of chase water for rinsing or chasing reduces immensely freshwater consumption. Bottle cleaning water accredits plant CIP program after simple physicochemical treatment. Well-organized practices through employee involvement will lead to achieving internationally competitive performance indicators.
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