Techno-Economic Analysis and Use of Potable Water Treatment Sludge as Coagulant for the Treatment of Brewery Industry Wastewater

Authors : Pelin Yapıcıoğlu, Mehmet İrfan Yeşilnacar

Pages : 734-742

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Publication Date : 2025-12-31

Article Type : Research Paper

Abstract :The main objective of this study was the techno-economic assessment of use the potable water treatment sludge as a coagulant for the treatment of brewery industry wastewater. Within the scope of circular economy principles, a techno-economic analysis was performed of the use of sludge obtained after coagulation of groundwater as a recovered secondary resource instead of coagulant in the treatment of brewery wastewater. Alum (Al2(SO4)3.18H2O) was used as the coagulant for the potable water treatment. As a result, an alum-depended sludge was ensured at the end of coagulation process. The alum-depended sludge was used as the coagulant instead of ferric chloride (FeCl3) and addition to ferric chloride for the coagulation process of brewery industry wastewater. The use of sludge as a coagulant (24.5 ± 1.5 mL dewatered sludge/L wastewater) enhanced the organic materials removal efficiency 14.5%. An economic reuse index (ERI) was calculated depended on estimated and virtual sludge disposal and handling and chemical use as of FeCl3. The results showed that the use of sludge as a secondary source decreased the operational costs by 68.75% for the brewery industry wastewater treatment plant.
Keywords : Yeraltı Suyu, Çamur, Koagülant, Endüstriyel Atıksu

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