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SumiyatI
Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian Universitas Udayana, Badung, Bali, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pengomposan Sampah Organik Rumah Tangga dengan Alat Biokomposter Sederhana I Made Merta Wiryawan; da Ayu Gede Bintang Madrini; SumiyatI
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p13

Abstract

Household waste can be processed into compost. The purpose of this research is to obtain a good mix composition between household waste and rice hulls that produce compost quality according to SNI and determine which biocomposter produces the fastest compost. In order to produce compost, the household waste was added with rice hulls to determine the best material compositionratio and to achieve Indonesian standar in compost material i.e SNI 19-7030-2004. The comparison between household waste and rice hulls for A1, A2, and A3 is (1:0), (1:1) and (1:2) respectively. The composting process was carried out for 60 days and used two different biocomposter models, namely modified biocomposter and old biocomposter. Temperature, pH and water content were measured daily while organic matter, electrical conductivity (EC) and C/N ratio were measured at the beginning of composting and at the end of composting. The results showed that the final temperature and final pH in all bio composters did not show a significant difference. For the best water content produced by treatment A1 (1:0) on each bio composter. The best composition of the mixture produced in the ratio A1 (1:0) because the household waste obtained or the initial raw materialhas met the C/N ratio of compost raw materials, which is 45.81. All biocomposters have the ability ofproducing compost within 60 days. All bio composters reached a thermophilic temperature on day 25 andall bio composters run into a decrease in temperature on day 45, due to the addition of water every 7 daysduring the composting process.
Pengaruh Tinggi Sekat terhadap Karakteristik Pindah Panas pada PengukusanPakanTernakBabi: Effect of Contact Duration and Type of Active Charcoal on the Characteristics of Avocado Butter During Storage I Kadek Haris Hendrawan; Yohannes Setyo; Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 1 (2024): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i01.p19

Abstract

Pig feed is an important component in pig farming activities. This research aims to determine the characteristics of heat transfer in the steaming process for raw materials used in pig feed in Antiga Kelod Village, Manggis District, Karangasem Regency, Bali. The study used a group randomized design (RAK) method. The first factor was the height of the partition (P), with three variations of 14 cm, 16 cm, and 18 cm, while the second factor was the type of material (M), consisting of banana tree trunks, cassava, and kolbanda. Steaming was carried out for approximately 90 minutes for each mass of 1.5 kg. The results showed that banana stems at a bulkhead height of 14 cm (M1P1) had an airflow velocity of 0.52 m H₂O, a calorific value of 10,325.00 J, a texture value of 13.57 N, and a moisture content of 83.86%. Cassava material at the same height (M2P1) had an airflow velocity of 0.54 m H₂O, a calorific value of 10,896.80 J, a texture value of 7.61 N, and a moisture content of 51.90%. Kolbanda at 14 cm (M3P1) had an airflow velocity of 0.52 m H₂O, a calorific value of 10,325.00 J, a texture value of 5.56 N, and a moisture content of 54.80%. The data indicate that evaporation occurs during the steaming process, and decomposition in the feed ingredients softens the texture, making the feed easier to consume.
Co-Authors da Ayu Gede Bintang Madrini I Kadek Haris Hendrawan I Made Merta Wiryawan Yohannes Setyo