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All Journal Semesta Teknika Jurnal Pembangunan Nagari Jurnal Surya Teknika
Dwi Annisa Fithry
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health

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Thermogravimetric Analysis of Eucalyptus Leaves as An Alternative Fuel for Rural Areas Maarasyid, Cici; Idayu, Ida; Zulfansyah, Zulfansyah; Israyandi, Israyandi; Legawati, Lisa; Ermal, Dini Aulia Sari; Fithry, Dwi Annisa
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.20002

Abstract

The utilization of biomass waste as a substitute for conventional energy sources has gained popularity, and one possible source is the litter generated by eucalyptus plantations. The present study used thermogravimetric analysis (TGA) gain insight into the thermochemical characteristics of eucalyptus leaves. It was identified by heating the sample in a nitrogen environment from ambient temperature to 850oC at a rate of 10 oC/minute. Eucalyptus leaves have a high volatile matter (VM) content and a calorific value (CV) of 17.26 MJ/kg, according to the ultimate and proximate analysis. Additionally, the TGA results showed that eucalyptus leaves had a lower ignition temperature than other biomasses. Eucalyptus leaves began to devolatilize at 119 oC, reaching a peak temperature of 326 oC, and losing 68% of their weight as a result.
Thermogravimetric Analysis of Eucalyptus Leaves as An Alternative Fuel for Rural Areas Maarasyid, Cici; Idayu, Ida; Zulfansyah, Zulfansyah; Israyandi, Israyandi; Legawati, Lisa; Ermal, Dini Aulia Sari; Fithry, Dwi Annisa
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.20002

Abstract

The utilization of biomass waste as a substitute for conventional energy sources has gained popularity, and one possible source is the litter generated by eucalyptus plantations. The present study used thermogravimetric analysis (TGA) gain insight into the thermochemical characteristics of eucalyptus leaves. It was identified by heating the sample in a nitrogen environment from ambient temperature to 850oC at a rate of 10 oC/minute. Eucalyptus leaves have a high volatile matter (VM) content and a calorific value (CV) of 17.26 MJ/kg, according to the ultimate and proximate analysis. Additionally, the TGA results showed that eucalyptus leaves had a lower ignition temperature than other biomasses. Eucalyptus leaves began to devolatilize at 119 oC, reaching a peak temperature of 326 oC, and losing 68% of their weight as a result.
Thermogravimetric Analysis of Eucalyptus Leaves as An Alternative Fuel for Rural Areas Maarasyid, Cici; Idayu, Ida; Zulfansyah, Zulfansyah; Israyandi, Israyandi; Legawati, Lisa; Ermal, Dini Aulia Sari; Fithry, Dwi Annisa
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.20002

Abstract

The utilization of biomass waste as a substitute for conventional energy sources has gained popularity, and one possible source is the litter generated by eucalyptus plantations. The present study used thermogravimetric analysis (TGA) gain insight into the thermochemical characteristics of eucalyptus leaves. It was identified by heating the sample in a nitrogen environment from ambient temperature to 850oC at a rate of 10 oC/minute. Eucalyptus leaves have a high volatile matter (VM) content and a calorific value (CV) of 17.26 MJ/kg, according to the ultimate and proximate analysis. Additionally, the TGA results showed that eucalyptus leaves had a lower ignition temperature than other biomasses. Eucalyptus leaves began to devolatilize at 119 oC, reaching a peak temperature of 326 oC, and losing 68% of their weight as a result.
Pengaruh Perbedaan Ukuran dan Massa Adsorben Pelepah Sawit Teraktivasi dalam Pemurnian Minyak Jelantah Menggunakan Metode Shaker Fithry, Dwi Annisa; Bode Haryanto; Naia Salsa Billah; Astrina Hutabarat; Hidayat Prayogo
SURYA TEKNIKA Vol 10 No 2 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i2.6779

Abstract

Used oil more commonly referred to as used cooking oil is household waste that contains carcinogenic compounds which are very dangerous if consumed by the human, so that it does not become waste in the community can be used as raw material for making biodiesel. Used cooking oil processing can be done with the use of adsorbents so that used cooking oil becomes clear and its quality can be maintained. Palm Oil has the potential to be used as carbon which functions as an Adsorbent in the refining of used cooking oil. In this study, palm fronds were carbonized using pyrolysis with a temperature of 3500C then mashed and sifted with mesh sizes of 50, 70, and 100 mesh. Followed by the activation process using 0.1 M sulfuric acid solution (H2SO4) for 3 hours and then dried using an oven. The results of the study showed that the best turbidity was an adsorbent measuring 100 mesh with a mass of 4.5 grams, the final turbidity obtained with a value of 15.9 NTU with a total turbidity reduction of 108.6 NTU.
Rekomendasi Kebijakan untuk Pengelolaan Sampah Kota Padang Berbasis Pengelolaan Komunal dan Terintegrasi Durain Parmanoan; Aldri Frinaldi; Anni Faridah; Erianjoni Erianjoni; Indang Dewata; Nasfryzal Carlo; Fajar Agung Mulia; Kuntum Khoiro Ummatin; Izzati Winda Murti; Dwi Annisa Fithry
Jurnal Pembangunan Nagari Vol 11 No 1 (2026)
Publisher : Badan Penelitian and Pengembangan (Balitbang), Padang, West Sumatra, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30559/jpn.v6i11.532

Abstract

Waste management in Padang City is currently facing a critical phase with the Air Dingin Landfill predicted to reach full capacity in 2026 and having a worrying Environmental Risk Index (IRL). This problem is exacerbated by a large fiscal shortfall, where the regional budget allocation is far less than the ideal requirement of IDR 133 billion per year. This study aims to evaluate the effectiveness of waste policies and formulate a communal-based integrated management strategy as a sustainable solution. The research method uses a qualitative approach through literature studies, a review of Regional Regulation Number 21 of 2012 and flagship government programs such as “Padang Bagoro” and “Padang Mamilah”, as well as secondary data analysis of waste management data (SIPSN). The results of the analysis indicate a functional gap between seasonal social participation and low sorting behavior at source, as well as weak law enforcement due to limited supervisory personnel. This study recommends policy restructuring through a communal-scale management approach (RT-RW) that maximizes communal management and integration with the sub-district Waste Management Institution (LPS) and industrial sector to reduce the logistical burden and extend the technical life of the landfill.
Co-Authors Aldri Frinaldi Anni Faridah Astrina Hutabarat Dini Aulia Sari Ermal Durain Parmanoan Erianjoni Erianjoni Fajar Agung Mulia Haryanto, Bode Hidayat Prayogo Indang Dewata Israyandi Israyandi Izzati Winda Murti Lisa Legawati Naia Salsa Billah Nasfryzal Carlo Ummatin, Kuntum Khoiro Zulfansyah Zulfansyah