Zero Waste Concept in Fruit Waste Anaerobic Digester: Case Study of Biogas Plant Gamping, Yogyakarta

DOI

10.2991/aer.k.210603.044How to use a DOI?

Keywords

Anaerobic Digester, Biogas, Liquid Organic Fertilizer, Sludge

Abstract

Gamping biogas plant was built in 2011 to solve waste problem from GemahRipah fruit market which generate 4-10 tons waste/day. The digester was design for 4 ton/day and produce biogas and electricity. The electricity is used for lighting the shops and the road. For eightyears along the installation, biogas unit has been facilitated with transportation, crusher, anaerobic digester, generator, electricity and sensor unit. All the facilities are purposedto utilize the biogas. Another side product of sludge from digestate as by product is just discharged without any application. Here, we developed zero waste concept to utilize all products of anaerobic digester i.e. biogas to produce electricity and biogas sludge as fertilizer. The liquid fertilizer potentially supports the sustainability of the biogas unit from economic value of vegetable products or liquid fertilizer itself. Biogas produced from fruit waste contains 59% methane and 37% carbon dioxide (average from one year). The cumulative production for a half year monitoring is 650 Nm3 biogas and generate electricity up to 120 kWh. Biogas slurry effluent was fermented for two weeks and directly appliedas fertilizer. The analysis showed it contains C-Organik, N Total, P, K 0.39%, 0.34%, 0.07%, 1.91% respectively. Biogas slurry could support the growth of vegetative phase, while less support for generative phase.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - A Rahmada
AU  - F Marendra
AU  - H Rimbawan
AU  - C Wulandari
AU  - A E Putri
AU  - A Mustofa
AU  - D A Pramudito
AU  - R Millati
AU  - R B Cahyono
AU  - T Ariyanto
PY  - 2021
DA  - 2021/06/04
TI  - Zero Waste Concept in Fruit Waste Anaerobic Digester: Case Study of Biogas Plant Gamping, Yogyakarta
BT  - Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)
PB  - Atlantis Press
SP  - 246
EP  - 251
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.210603.044
DO  - 10.2991/aer.k.210603.044
ID  - Rahmada2021
ER  -