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Perancangan Eksperimen Reaktor Biogas Portabel dengan Bahan Kotoran Sapi dan Limbah Rumah Tangga Mu'alim, Mu'alim; akhmad, Sabarudin; Arendra, Anis; Purwoko, Sugeng
Matrik : Jurnal Manajemen dan Teknik Industri Produksi Vol 24 No 2 (2024)
Publisher : Prodi Teknik Industri Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/matrik.v24i2.5994

Abstract

Universitas Trunojoyo Madura dengan RIP periode 2020-2024 berkonsentrasi salah satunya biogas rumah tangga dengan mitra Kec.Waru, Kab.Pamekasan, Madura karena mempunyai potensi besar pengembangan biogas berbasis kotoran sapi dan limbah rumah tangga. Hal itu melatar belakangi penelitian untuk mengetahui faktor yang berpengaruh terhadap produksi biogas dengan pendekatan perancangan eksperimen faktorial acak lengkap 32 dengan 2 faktor variasi campuran kotoran sapi - limbah rumah tangga dan derajat keasaman (pH) menggunakan 3 perulangan. Penelitian diawali dengan penggalian potensi biogas di Kec, Waru yang dilanjutkan dengan pengembangan reaktor biogas portabel sebagai sarana perancangan eksperimen yang akan dilakukan. Perancangan eksperimen dengan variabel independen (variasi perbandingan campuran kotoran sapi : limbah rumah tangga dengan 3 level yaitu 4:2,3:2,2:3 dan derajat keasaman (pH) dengan 3 level yaitu 6.8,7.0,7.2) dan variabel dependent (tekanan biogas yang dihasilkan) serta variable kontrol (volume reaktor biogas sama, waktu proses (Hydraulic Retention Time atau HRT) 15 hari,perbandingan air: kotoran sapi+ limbah rumah tangga adalah 1:1). Dari 27 data pengamatan dilakukan Uji Anova dan hasilnya hanya faktor variasi campuran kotoran sapi-limbah rumah tangga yang memilik pengaruh signifikan terhadap tekanan biogas yang dihasilkan dengan kombinasi terbaik variasi campuran 4:2 dan derajat keasaman (pH) 7,0 menghasilkan total rata- rata tekanan biogas 0,627333 Psi. Berdasarkan Uji Koefisien Determinasi faktor variasi campuran, derajat keasaman dan interaksi kedua faktor menjelaskan variabel respon tekanan biogas sebesar 46,24 % .
Characteristics and Energy Potential of Bio-Briquettes from Cassava Peel, Water Hyacinth, and Sawdust Salimah, Shofi Fitrotis; Akhmad, Sabarudin; Arendra, Anis
Jurnal Pendidikan dan Teknologi Indonesia Vol 5 No 6 (2025): JPTI - Juni 2025
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpti.439

Abstract

Abstract. Agricultural waste biomass direct burning to generate heat in industrial applications is inefficient. In addition, the difficulty in shipping and storage is due to its large volume and non-uniform shape. One approach to overcome this problem is by compacting the biomass to increase density, improve calorific value, and save a better combustion rate. In this study, the screw extruder machine was designed to compress, heat, and extrude bio-briquettes to form a hollow hexagon cross-section with an inscribed circle diameter of 52mm from biomass waste. The water hyacinth and cassava peel biomass were each dried and chopped into small particles before being mixed with sawdust. Cassava peel flakes also act as a binder in this mixture. We investigated the effect of biomass composition and extruder heating temperature on the calorific heating value and burning rate of bio-briquettes. We complete the experiments at three temperature levels and three levels of biomass composition. The results of the study found that there was no significant effect of the heating temperature factor on the calorific value and the rate of combustion of briquettes. While the composition of biomass impact significantly on the calorific value and burning rate of bio-briquettes. The calorific value reached 19.16 MJ/kg in the 50% sawdust, 30% water hyacinth, and 20% cassava peel bio-briquettes composition with a burning rate of 1.49 g/min. Water hyacinth and cassava peel waste recovery as an energy source not only turns waste into valuable resources but again becomes a solution to the problem of water hyacinth pest invasion and even provides economic and ecological benefits.