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All Journal Journal of Degraded and Mining Lands Management Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL AGROHITA Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Buletin Ilmiah Nagari Membangun Jurnal Teknologi Pertanian Andalas Jurnal Pembelajaran dan Biologi Nukleus Bubungan Tinggi: Jurnal Pengabdian Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Riset Perkebunan (JRP) Andalasian International Journal of Social and Entrepreneurial Development
Awalina, Rahmi
Fakultas Teknologi Pertanian, Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Biosorption Performance of Biochar from Exhausted Kahwa Coffee on Cadmium Removal Under Various Operational Parameters Yanti, Nika Rahma; Puari, Aninda Tifani; Amalya, Frisca Lora; Rusnam, Rusnam; Awalina, Rahmi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.764-771

Abstract

The primary goal of this study was to investigate the biosorption performance of biochar derived from exhausted kahwa coffee (EKC) on removing heavy metal ion, Cd²⁺ in the solution. The operational parameters, for instance pH, dosage and contact time, were varied in a certain range and the efficiency and the capacity of removal were determined. The pH was in a range of 5 – 11, while the biochar dosage in a range of 0.075 – 0.15 g and the contact time was in between 30 – 180 minutes. The batch biosorption test showed that the EKC biochar had higher removal performance in alkaline condition, with a proposed pH of 10. Meanwhile, the applied dosage showed that addition of 0.1 g EKC biochar was more effective than adding more dosage. Furthermore, the batch experiments showed that 60 minutes of biosorption process resulted in more effective removal compared to the longer biosorption time. According to the ANOVA analysis on the three conditions, it was shown that the pH and contact time had significant effects on the removal performance of EKC biochar on cadmium ion in the solution.  Keywords: Biochar, biosorption, Exhausted kahwa coffee, Heavy metal ion, Operational parameters.
APLIKASI SISTEM AQUAPONIK DENGAN HIDROPONIK DFT PADA BUDIDAYA TANAMAN PAKCOY (Brassica rapa L.) Awalina, Rahmi
Jurnal Teknologi Pertanian Andalas Vol 29 No 1 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.29.1.%p.2025

Abstract

Akuaponik merupakan sistem budidaya terintegrasi yang mengombinasikan teknik hidroponik dengan budidaya ikan dalam ekosistem sirkulasi tertutup, di mana air limbah hasil metabolisme ikan dimanfaatkan sebagai sumber nutrisi alami bagi tanaman. Berbeda dari hidroponik konvensional yang bergantung pada larutan AB mix, sistem ini menawarkan alternatif yang lebih ramah lingkungan dan berkelanjutan. Penelitian ini bertujuan untuk mengevaluasi pengaruh tiga desain sistem hidroponik DFT berbeda terhadap pertumbuhan tanaman pakcoy (Brassica rapa L.), yang dikenal bernilai ekonomis dan bergizi tinggi. Parameter yang diamati meliputi tinggi tanaman, jumlah daun, dan bobot segar tanaman. Data dianalisis menggunakan uji ANAVA satu arah pada taraf signifikansi 5%. Hasil menunjukkan adanya perbedaan nyata antar model, di mana sistem piramida memberikan hasil terbaik dengan rata-rata tinggi tanaman 22,4 cm, jumlah daun 8,6 helai, dan bobot segar 74,8 gram. Temuan ini menunjukkan bahwa desain sistem DFT berpengaruh signifikan terhadap produktivitas tanaman dalam sistem akuaponik.
OPTIMALISASI PEMASARAN KAMBING POTONG MELALUI MEDIA DIGITAL PADA KELOMPOK TANI PINCURAN GADANG: Optimizing Fattening Goat Marketing Through Digital Media In Pincuran Gadang Farmers Group Awalina, Rahmi; Edwin, Tevina; Wellyalina, Wellyalina
BULETIN ILMIAH NAGARI MEMBANGUN Vol. 8 No. 3 (2025)
Publisher : LPPM (Institute for Research and Community Services) Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/bina.v8i3.803

Abstract

Pincuran Gadang Farmers Group, a part of the BUMNag Balai Panjang enterprise in Lareh Sago Halaban District, Lima Puluh Kota Regency, faced the problem of low sales performance in its Jawarandu goat business due to a conventional marketing approach. Over the past year, the group’s average sales reached only two to three goats per month, mainly relying on word-of-mouth and limited Facebook promotion. This community service program aimed to enhance the group’s income and business competitiveness through the implementation of a hybrid marketing strategy combining conventional and digital promotion methods. The activities included field observation, participatory mentoring, the creation of printed brochures for goat marketing, and the development of an official Instagram account as a digital promotion tool. The results indicated improvements in members’ understanding and skills in managing promotional media, stronger business branding, and increased interaction with potential customers within and beyond the local community. Furthermore, the adoption of digital marketing expanded the group’s market reach and improved consumer trust in local livestock products. The integration of printed and digital promotion proved to be an effective approach to strengthening the economic independence of smallholder livestock farmers while fostering the community’s digital capacity. The sustainability implication of this program lies in the establishment of a sustainable community marketing model that can be replicated by other rural farmer groups to promote inclusive and resilient agribusiness development.
Co-Authors Almira Ulimaz Amalya, Frisca Lora Aninda T. Puari Arif Rizkika Putra Asmuti, Ayendra Ayendra Asmuti Ayu Lestari, Resti Daimon Syukri Deivy Andhika Permata Derosya, Vioni Donny Eros Efrina, Efrina Ekaputra, Eri Gas Eli Ratni Erona, Meisilva Fadli Hafizulhaq Fadli Irsyad Faldiyo Alghifary Febrina, Ria Frisca Lora Amalya Harianti, Mimien Hasbullah Hasbullah Haznam Putra Hermansah Hermansah, Hermansah Hijri, Nurul Ikhsan Ismail Islami, Syaifuddin Ismail, Ikhsan Isril Berd Joardan Lasop Kurnia Harlina Dewi Kurnia Harlina Dewi Lestari, Resti Ayu Meisilya Erona Meutia Fiana, Risa Muhammad Iqbal Abdi Lubis Nika Rahma Yanti Novelina Pratama Eka Putra, Satria Reni Koja Resmiati Resmiati Resmiati Resmiati Risa Meutia Risa Meutia Fiana Rozidateno Putri Hanida Rusnam Rusnam Satria Pratama Eka Putra TEVINA EDWIN Titis Linangsari Virtuous Setyaka Wellyalina, Wellyalina Yanti, Delvi Yardani, Jesi Yeffi Yeffi Masnarivan Zuldadan Naspendra