Characterisation of Arabica coffee pulp - Hay from kintamani - Bali as prospective biogas feedstocks

Setyobudi, Roy Hendroko and Krido Wahono, Satriyo and Gamawati Adinurani, Praptiningsih and Wahyudi, Ahmad and Widodo, Wahyu Eko and Mel, Maizirwan and Adhi Nugroho, Yogo and Prabowo, Bayu and Liwang, Tony (2018) Characterisation of Arabica coffee pulp - Hay from kintamani - Bali as prospective biogas feedstocks. In: 3rd International Conference on Electrical Systems, Technology and Information, ICESTI 2017, 26 - 29 September 2017, Mercure Bali HarvestlandDenpasar, Bali; Indonesia.

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Abstract

The huge amount of coffee pulp waste is an environmental problem. Anaerobic fermentation is one of the alternative solutions. However, availability of coffee pulp does not appear for year-round, whereas biogas needs continuous feedstocks for digester stability. This research uses coffee pulp from Arabica Coffee Factory at Mengani, Kintamani, Bali–Indonesia. The coffee pulp was transformed into coffee pulp-hay product by sun drying for preservations to extend the raw materials through the year. Characterization of coffee pulp-hay was conducted after to keep for 15 mo for review the prospect as biogas feedstocks. Several parameters were analyzed such as C/N ratio, volatile solids, carbohydrate, protein, fat, lignocellulose content, macro-micro nutrients, and density. The review results indicated that coffee pulp-hay is prospective raw material for biogas feedstock. This well-proven preservation technology was able to fulfill the continuous supply. Furthermore, some problems were found in the recent preliminary experiment related to the density and fungi growth in the conventional laboratory digester. Further investigation was needed to implement the coffee pulp – hay as biogas feedstocks.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4085/65463
Uncontrolled Keywords:	Environmental problems, floating feed, hay technology, low density feed, preservation feedstocks, waste to energy
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Maizirwan Mel
Date Deposited:	07 Aug 2018 16:01
Last Modified:	07 Aug 2018 16:01
URI:	http://irep.iium.edu.my/id/eprint/65463

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