Anaerobic digestion of blood serum water integrated in a valorization process of the bovine blood treatment. (January 2019)

• Record Type: Journal Article
• Authors: Langone, Michela; Ferrentino, Roberta; Freddi, Federico; Andreottola, Gianni
• Is Part Of: Biomass and bioenergy. Volume 120(2019)
• Page Start: 1
• Page End: 8
• Publication Date: 2019-01
• Subjects: Anaerobic digestion -- Anaerobic filter -- Blood serum water -- Energy valorization -- Slaughterhouse; Biomass energy -- Periodicals; Biomass -- Periodicals; Energy-Generating Resources -- Periodicals; Bioénergie -- Périodiques; 333.9539
• DOI: 10.1016/j.biombioe.2018.10.015
• Languages: English
• ISSNs: 0961-9534

Abstract

Abstract: The present work aims to analyze the valorization of blood (Category 3 animal by-products). In this study, for the first time, blood serum water, obtained after a sterilization process and a solid/liquid separation unit, has been utilized as energy rich input material for anaerobic digestion. The performance of an up-flow anaerobic filter (UAF) for treating bovine blood serum water under mesophilic conditions was investigated. The reactor was loaded up to an organic loading rate of 2.5 kg m −3 d −1 of total COD, achieving total and soluble COD removal efficiencies of 90% and 92%, respectively. A maximum biogas yield of 0.56 m 3 kg −1 of removed total COD was measured. According to the modified Stover-Kincannon kinetic model, maximum removal rate constant, Umax, and saturation value constant, KB, values were estimated as 18.8 g L −1 d −1 and 18.5 g L −1 d −1 for blood serum water, respectively. As the model gave high correlation coefficients (R 2 = 97%), it could be used in both designing and predicting the behaviour of the UAF. Graphical abstract: Flow sheet of the plant for the blood valorization process proposed in this work. Image 1 Highlights: Blood serum water, after sterilization and solid/liquid separation, has been treated. Anaerobic digestion of blood serum water was performed in up-flow anaerobic filter. Total COD removal efficiencies of 90% were achieved at 2.5 kg of tCOD per m 3 per day. A modified Stover-Kincannon kinetic model was successfully applied.