Study of Household Biodigesters

Chandra Wahyu Purnomo(1*), Ambar Pertiwiningrum(2), M. Prasetya Kurniawan(3)

(1) Department of Chemical Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta 55281
(2) Faculty of Animal Science, Gadjah Mada University, Jl. Fauna, Yogyakarta 55281
(3) Faculty of Agriculture Technology, Gadjah Mada University, Jl. Sosio Yustisia, Yogyakarta 55281
(*) Corresponding Author


Tunnel or tubular type of bio-digester has been widely developed in many countries for producing a renewable clean fuel gas named biogas. This digester type only requires minimum maintenance and simple construction for ensuring its lower cost compared to others with similar capacity. Mostly, polyethylene (PE) plastic bag is used for construction materials of the tubular digesters. In this research, the tubular type has been constructed using large diameter PVC (Poly Vinyl Chloride) pipe for increasing the durability and safety. The performance of PVC digesters have been tested by measuring biogas production rate and CH concentration in the gas. COD (Chemical Oxygen Demand) and BOD (Biological Oxygen Demand) drop between inlet and outlet sludge have been measured for examining the digester ef- ficiency. Then, the performance was compared with PE plastic digesters data from several literatures which still needs some improvements for enhancing its capability and performance.


Tunnel digesters; manure; fertilizer; biogas; COD; BOD

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Copyright (c) 2016 Chandra Wahyu Purnomo, Ambar Pertiwiningrum, M. Prasetya Kurniawan

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agriTECH (print ISSN 0216-0455; online ISSN 2527-3825) is published by Faculty of Agricultural Technology, Universitas Gadjah Mada in colaboration with Indonesian Association of Food Technologies.

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