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Journal : Konversi

Optimization of aerobic fermentation of solid fertilizer from goat manure using response surface methodology (RSM) Mandriana, Rizna Aini; Mafachir, Muhammad Tajul; Billah, Mu'tasim; Sari, Ni Ketut; Kurnianti, Ely; Suprihatin, Suprihatin
Konversi Vol 15, No 1 (2026): APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v15i1.25810

Abstract

The increase in the goat population in Panceng District has resulted in an increase in the volume of goat waste which has the potential to pollute the environment if not managed properly. Goat manure has good nutrient content, but the high initial C/N ratio (30.47) indicates that the material is not yet stable and requires a fermentation process. This study aims to optimize the aerobic fermentation process using the Response Surface Methodology (RSM) with varying air flow rates (5–25 L/min) and oxidation times (16–24 days). The process was carried out in an in-vessel non-flow reactor with an active aeration system. Carbon content analysis using the Walkley–Black Modified Spectrophotometric method and nitrogen content analysis using the Kjeldahl Method and water content using the gravimetric method. The results showed that increasing the air flow rate and oxidation time caused a significant decrease in the C/N ratio from 30.47 to 11.52–17.62. The optimum conditions were obtained at an air flow rate of 20 L/min and an oxidation time of 22 days with a C/N ratio of 12.4769 and a water content of 23.3309%, and a desirability value of 1. These results show that optimization using RSM is able to produce solid organic fertilizer that meets SNI standards (<20).
Co-Authors Abdul Syukur Abdurrahman, Ahmad Faruq Abia Musa, Othman Azam Acep Musliman Achmad, Imron Ramdhani Affifah, Firyal Nurul Agnesia, Donna Agus Supriyanto Agustin, Asty Agustin, Clara Agustina, Lya Ainur Rofiq Aisyah, Aurela Naura Alivia, Siti Amin Ash Shabah, Musyaffa Anas Miftah Fauzi Andita, Jessica Shierly Anggrawati, Dewi Fitriana Aprilia, Ayu Arie Herlambang Arizona, Herbeta Arwani Arwani Aulia Afniar Rahmawati Ayi Yunus Rusyana Ayu Aprilia Azis, Abdul Muhaiminul Azwar Manaf A’yuni, Annisa Qurratu B. Wahyudi Joko Santoso Baiduri Baiduri Bani, Aplonia Nia Benyamin, Chairunissa A Billah, Mu'tasim Birawidha, David C Cahya, Rahmandani Dwi Carolin, Bunga Tiara Chaerani, Marisa Choirunissa, Risza D.E Purwadi Putra, Izzan Julda dadan dadan, dadan Daulay, Amru Dewa, Krisna Kumara Didik Nugroho Dikriyah, Dikriyah Dyah, Meiska Ediman Ginting Ediman Ginting Edy Kusnadi Edy, Akari Efri Yulistika Ema Damayanti Endang Sri Maruti Etty Riani Faisal Akbar Faiza, Dinar Fath, Yusril Al Febilian Adiwinata Febriyola, Dwita Feby Firdaus, Iqbal Firyal Nurul Affifah Furizal, Furizal Grehastuti, Widyana Gumbira-Sa'id, E Habibi, Adam Firdaus Han Han Hanafi, Mochammad Ilham Handayani, Yuniorita Indah Hanifah, Desty Putri Hartrisari Hardjomidjojo Hatmoko, Sito Hefni Effendi Hendri Tanjung Heni Purwati Hermawan Prasetya Hidayat Pujisiswanto Husna Amin I Ketut Suada Ibdalsyah Ibdalsyah Imam Riadi Indra Lila Kusuma Junedi, Junedi Kaswanto, Regan Leonardus Kaswanto Ketut Putra Wijaya Ketut Sumada Khadafi Kader, Muhammad Anshar Kharismawati, Dyah Khaswar Syamsu Komariah, Euis Kristanti, Dona Avrilia Kristina Maisaroh Kurnianti, Ely Kurniasih Yuni Pratiwi Kurniati, Ely Laksmidevi Juwono, Ariadne Lantip Rujito Lawang, Karimuddin Abdullah Legis Tsaniyah, Legis Lestari , Diyah Woro Dwi Lestari, Diyah Woro Dwi Lestari, Rizky Nindy Lianty, Leliana Lukmana, Hania Kholifatul Mafachir, Muhammad Tajul Mandriana, Rizna Aini Marimin , Marisi, Dany Poltak Marzuqi, Muhammad Hilmi Maulana, M. Rifki Maulidina, Citra Ashri maysuhetni, maysuhetni Miko Ferine Moh. Hasan Moh. Yani Mohammad Arif Taboer Mohammad Iqbal Muhammad Amin Muhammad Anas Ma`arif, Muhammad Anas Muhammad Romli dan Suprihatin Andes Ismayana Muhammad Tsaqib Idary Muhammad Yani Muhtarom Muid N, Abd. Mukh Nursikin Mukhlis Mukhlis Mulyorini Rahayuningsih Munali, Munali MUNSARIDA munsarida Mustakim, Muhammad Arfian Nana Dyah Siswati, Anwar Zain and Mohammad Nandang Najmudin Nara, Hartini Nastiti S. Indrasti, Nastiti S. Nastiti Siswi Indrasti Ni Ketut Sari Nindia Agustin Noverita Novia, Dani Esti Novita Ita Estika NUR AINI Nur Aini Fauziyah Nur Islam, Nur Nurazizah, Indah Nurcholis, Fachrul Nurma Fitri Handayani Nurul Taufiqu Rochman Oktarina, Riesta Ayu Ono Suparno Otakrina, Riesta Ayu Pertiwi, Salwa Dian Pipit Tunjungsari Posman Manurung Prastiana Tiara Pratiwi Prastica, Lusia Prayugo Juwi Susilo Putro Prihanto, Surya Puji Rahayu Pulung Karo-Karo Purwanto, Mohammad Yanuar Purwanto, Mohammad Yanuar J. Purwoko Purwoko Purwoko, Ari Puspita Yuliandari Putri Oktaviani Putri, Amalia Eka Putri, Febrian Karunadiah Putri, Zefanya Tabitha Kartono Putriana, Ima Putriana, Silvia Rachmawati, Diana Widhi Radjib, Mohammad Rahmawan, Ahmad Jamhari Ramadiana, Sri Rambat Nur Sasongko Rangkuti, Murti Sari Ratna Ekawati Ratna Puspita Sari, Ratna Puspita Retno dewati Ridwan, Wonny Ahmad Rif'ah, Hafidlotul Risky Putra Ramadhan Risza Choirunissa Rizqi, Birrlinaawaliyati Ruchyat Deni Djakapermana Rufi'i Saiful Anwar Sakan, Diana Hadad Salma Mazidah Sani Saputra, Prilingga Sarifah Nurjanah Satyanto Krido Saptomo Setyo Pertiwi Siagian, Nilasari Siauta, Jenny Anna Sigid Hariyadi Simon Sembiring Siti Agustina, Siti Siti Aminah Siti Munawati Siti Zubaidah Sri Endang Maruti Sri Wahyu Suciyati Subyantoro Sudibyo Sudibyo Sudibyo Sudibyo Sugeng, Tadius Marjuni Suharyadi, Edy Sulistyowati, Erna Husein Suntari, Susi Suprianti, Lilik Suprihatin Supriyadi Supriyadi Supriyanto, Amir Suria Darma Tarigan Surya Cipta Ramadhan Kete Susanthi, Dhama sutiyono sutiyono Syafruddin Syafruddin Syafrudin Raharjo Syarifa Arum Kusumastuti Syarifa Arum Kusumastuti Syarifa Arum Kusumastuti, Syarifa Arum Tajuddin Bantacut Tamriatin Hidayah Tamsir, Tamsir Thianti Sylviningrum Tirtajaya, Mas Deden Titi Candra Sunarti Titi Susilowati Toruan, Hotma Tri Haryono Trianna, Nurul Widji Tupan, Johanna Helen Urbanus, Urbanus Wahyu Siswandari wahyu widayat Wahyudin Wahyudin Warih Hardanu, Warih Wastoni, Oni Wati, Yonna Widi Astuti Widyastuti , RA. Diana Wirayudha, Umar Wulandari, Anita Agustina Wulandari, E. Rizky Wulandari, E.Rizky Yandra Arkeman Yanti Yulianti Yosepha, Sri Yanthy Yuliana Sari Yunita Indinabila Yusianto Rindra Yustina Retno Wahyu Utami Zahra, Firza Hardyn Aira Zikrine, Zikrine Zulia, Ilma