Utilization and integration of microalgae consortium in treating undiluted anaerobic digestate animal effluent to produce animal feed, bio-oil, and biogas

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Sasongko, Nugroho Adi and Ayre, Jeremy and Noguchi, Ryozo and Moheimani, Navid R. and Bahri, Parisa A. and Anda, Martin and Nakajima, Mitsutoshi and Soekotjo, Ernie S.A. and Pertiwi, Gian Aditya and Handayani, Tri and Steven, Soen (2025) Utilization and integration of microalgae consortium in treating undiluted anaerobic digestate animal effluent to produce animal feed, bio-oil, and biogas. Bioresource Technology, 416. p. 131788. ISSN 09608524

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Official URL: https://doi.org/10.1016/j.biortech.2024.131788

Abstract

Anaerobic digestate animal effluent (ADAE) contains high N and P nutrients which need to be treated. In this study, an integrated process was proposed using a microalgae consortium of Chlorella and Scenedesmus. The system was designed for 71 m3/d (medium-sized) and 355 m3/d (large-sized) animals of ADAE. Process simulation estimated to produce 83–417 kg d-1 of microalgae biomass which can be used as further products. As much as 2 kg of animal feed and 36–180 L/d of bio-oil can be produced during the treatment of 1 m3/d of ADAE. The produced biogas can generate 247–1,217 MWh y-1 of electricity. Likewise, the process can reduce greenhouse gas emissions by 2 kg-CO2eq kg−1 of hot standard carcass weight (HSCW). This integrated system offers merits in treating ADAE as well as producing chemicals and energy with low environmental burdens.

Item Type:	Article
Uncontrolled Keywords:	Electricity, GHG emissions, Redfield ratio, Effluent treatment, Open raceway pond
Subjects:	Environmental Pollution & Control Agriculture & Food
Depositing User:	Rizzal Rosiyan
Date Deposited:	02 Dec 2025 03:37
Last Modified:	02 Dec 2025 03:37
URI:	https://karya.brin.go.id/id/eprint/55475

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