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Muhammad Romli dan Suprihatin Andes Ismayana
Departemen Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680
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Journal : Makara Journal of Science

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Co-digestion of Sorghum Stalk and Sludge for Biogas Production Romli, Muhammad; Anggraini, Aulia; Purwoko,; Suprihatin,
Makara Journal of Science Vol. 19, No. 4
Publisher : UI Scholars Hub

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Abstract

The recycling of residual agricultural biomass using anaerobic digestion allows for the recovery of biomass carbon and nutrients as sources of energy and fertilizer. The obstacles that are encountered in this process include the lignocellulosic structure of biomass tissue and its high carbon-to-nitrogen (C:N) ratio. This study evaluates the co-digestion system of pretreated sorghum stalks and wastewater sludge. The stalks were pretreated by partial bio-oxidation to improve their bacterial accessibility. The digesters were fed a mixture of stalk and sludge at ratios of 100:0, 80:20, 60:40, and 40:60 (total solids [TS] basis). The digesters were run in batches at 35-36 °C, with an initial TS of 15%. The digesters’ performance was evaluated in terms of biogas production rate and yield. The digesters that were run with feed ratios of 80:20 and 60:40 showed shorter lag phase, higher biogas generation rates, and higher biogas yields compared to those run with feed ratios of 100:0 and 40:60. The highest specific biogas production (of 122 L/kg TS) was achieved by the digesters run at ratios of 80:20 and 60:40. The digesters run only with stalks (ratio 100:0) resulted in specific gas production of 67 L/kg TS, whereas those fed on a feed ratio of 40:60 generated only 13 L/kg TS. We conclude that the co-digestion of sorghum stalks and wastewater sludge at a proper ratio improves biogas production.
Co-Authors . Purwoko Adi Prayogo Adi Susandi Alex Denni Amelia Theresia Sirait Amril Aman Anas Miftah Fauzi Andriyani, Yani Ani Suryani Ani Suryani Ani Suryani Anis Annisa Adnan Antarif Kusuma Brata Apriyani, Pipin Ardiansa Aulia Anggraini Aulia Anggraini, Aulia Bambang Pramudya Noorachmat, Bambang Pramudya Budhi Hascaryo Iskandar Christy Nur Cahyani Daniel Bunga Paillin Dany Poltak Marisi Derin Pahlevi Dewa Bagus Sanjaya Dianawati Dianawati Dianawati Djumali Mangunwidjaja Edi Wiloso Ema Mutiara Hasanah Erliza Noor Faidi, Achmad Fara Asifa Ulfimora Farida Putri Fauziansyah Ficky Dewi Ixfina Ficky Raja Dirgantara Daulay Fis Purwangka Fitri Mulyaningsih Fitriyatul Romadiani Gios Adhyaksa Gusfa Arlian Putra Hanifah Ulfa Azzahro Hartrisari Hardjomidjojo I Nengah Suastika I Wayan Lasmawan I Wayan Suastra Ida Bagus Putrayasa Ida Bagus Putu Arnyana Ihsan Ika Amalia Kartika Ikmal Mumatahaen Illah Sailah Indah Yuliasih Juwariyah, Siti Khadijah Febriana Komarudin, Omay M.Pd Prof. Dr. I Nyoman Sudiana . Machfud Machfud Machfud Machfud Maisaroh Maisaroh Marimin , Maulani, Sri Medy Ramdhani Mega Ayu Yusuf Meilita Tryana Sembiring, Meilita Tryana Mia Ulumiati Putri Moh. Fudholi Moh. Yani Moh. Yani Mohsi, M Mufida, Muslimatul Muhamad Ifdholy Muhammad Alqodri Muhammad Faizal Mahmud Mumtahaen, Ikmal Mursiti Mursiti Musfiroh Musfiroh Mustofa Makmoen, Mustofa Nadia Athirafitri Nandar, Ramdani Hairul Nandar Nastiti S Indrasti Nastiti S.I. Nastiti Siswi Indrasti Naufal Ali Hamid Ni Ketut Suarni Niza Erica Nugraha, Ridwan Maulana Nunung Nurhasanah Nurcahyani, Puji Rahmawati Nuroniah, Zuhrufah Jihan Nurul Izzah Aulia Pinkan Pangestu Parameswari Pramulya, Rahmat Purwoko Purwoko Purwoko, Putri Maulida Khasanah R. Muchamad Irchas Sukabudhi Rahman, Adun Ridzky Kramanandita Sarip Hidayat, Sarip Satriyo Wibowo Seputro, Haryono Siti Khadijah, Yayu Soni Zakaria Sri Suhardono Sudiartini, Rini Suharto Honggokusumo Sukardi Sukardi Sukardi, Sukardi Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin, Suryani, Ani Susandi, Adi Syah Johan Syamsul Arifin Tajuddin Bantacut Tajudin Bantacut Tanto Pratondo Utomo TATI NURHAYATI Taufik Djatna Trimelawati, Reni Tun Tedja Irawadi Tyara Puspaningrum Untung Trimo Laksono Wahjuni, Sri Waryat Waryat Wibowo, Nyoto Yandra Arkeman Yeti Widyawati Yuanta, Friendha Zaenal Abidin