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A comprehensive review on utilization of wastewater from coffee processing

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Abstract

The coffee processing industry is one of the major agro-based industries contributing significantly in international and national growth. Coffee fruits are processed by two methods, wet and dry process. In wet processing, coffee fruits generate enormous quantities of high strength wastewater requiring systematic treatment prior to disposal. Different method approach is used to treat the wastewater. Many researchers have attempted to assess the efficiency of batch aeration as posttreatment of coffee processing wastewater from an upflow anaerobic hybrid reactor (UAHR)-continuous and intermittent aeration system. However, wet coffee processing requires a high degree of processing know-how and produces large amounts of effluents which have the potential to damage the environment. Characteristics of wastewater from coffee processing has a biological oxygen demand (BOD) of up to 20,000 mg/l and a chemical oxygen demand (COD) of up to 50,000 mg/l as well as the acidity of pH below 4. In this review paper, various methods are discussed to treat coffee processing wastewaters; the constitution of wastewater is presented and the technical solutions for wastewater treatment are discussed.

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Acknowledgments

The authors thank the director of CSIR-CFTRI for giving kind permission to publish this paper.

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Authors and Affiliations

  1. CSIR-Central Food Technological Research Institute Mysore, Karnataka, 570020, India

    A. K. Parande, V. D. Nagaraju & Girish K. Ghiwari

  2. University School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India

    Supriya Rattan

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  1. Supriya Rattan
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  2. A. K. Parande
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  3. V. D. Nagaraju
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  4. Girish K. Ghiwari
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Correspondence to A. K. Parande.

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Rattan, S., Parande, A.K., Nagaraju, V.D. et al. A comprehensive review on utilization of wastewater from coffee processing. Environ Sci Pollut Res 22, 6461–6472 (2015). https://doi.org/10.1007/s11356-015-4079-5

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