Thermophilic Co-Digestion of Sewage Sludge and Brewery Spent Grain

• Autorzy: Lebiocka Magdalena , Montusiewicz Agnieszka , Szaja Aleksandra , Rembisz Sylwia , Nowakowska Ewelina

Identyfikatory

DOI

10.12911/22998993/113139

• Języki publikacji: EN

Abstrakty

EN

This study examined the effectiveness of thermophilic co-digestion of sewage sludge and milled/non-milled brewery spent grain. The experiments were performed in batch-mode to evaluate both the biogas potential and the biogas production rate. Five runs were carried out, one of them concerned the anaerobic digestion of sewage sludge (as control), whereas the others referred to the co-digestion of sewage sludge with addition of milled and nonmilled brewery spent grain at doses of 5 and 10 g. The runs were conducted under thermophilic conditions (temperature 55±1°C) and lasted for 21 days. The effectiveness of the process was assessed on the basis of the volatile solids removal, biogas potential and the rate of biogas production. The physiochemical composition of reactor feed and digestate were characterized. The addition of the brewery spent grain resulted in increase of the biogas potential, but a decrease in the volatile solids removal. In the case of biogas production rate, the highest value was recorded in the run with the addition of 10 g of milled and non-milled brewery spent grain (0.69 Ndm³dm^-3d^-1). There was no observed influence of milling on the thermophilic co-digestion effectiveness since the parameters specified revealed comparable values.

Słowa kluczowe

EN

anaerobic digestion; co-digestion; brewery spent grain; pre-treatment; milling

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2019
• Tom: Vol. 20, nr 10
• Strony: 118--124
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Lebiocka Magdalena

• Lublin University of Technology, Faculty of Environmental Engineering, ul. Nadbystrzycka 40 B, 20-618 Lublin, Poland

autor

Montusiewicz Agnieszka

• Lublin University of Technology, Faculty of Environmental Engineering, ul. Nadbystrzycka 40 B, 20-618 Lublin, Poland

autor

Szaja Aleksandra

• Lublin University of Technology, Faculty of Environmental Engineering, ul. Nadbystrzycka 40 B, 20-618 Lublin, Poland

autor

Rembisz Sylwia

• Lublin University of Technology, Faculty of Environmental Engineering, ul. Nadbystrzycka 40 B, 20-618 Lublin, Poland

autor

Nowakowska Ewelina

• Lublin University of Technology, Faculty of Environmental Engineering, ul. Nadbystrzycka 40 B, 20-618 Lublin, Poland

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