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Journal : EnviroScienteae

Optimasi Produksi Asap Cair Dari Kayu Medang (Cinnamomum sp.) Menggunakan Metode Permukaan Respon H. A. Oramahi; Farah Diba; Rizka Diah Permana
EnviroScienteae Vol 16, No 1 (2020): EnviroScienteae Volume 16 Nomor 1, April 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v16i1.8998

Abstract

In this work medang wood (Cinnamomum spp.) was pyrolyzed to produces wood vinegar. The effect of several parameters including the wood particle size, pyrolysis temperature, and pyrolysis time on the pyrolysis efficiency was tested to identify the optimal wood vinegar production conditions. The efficient response surface methodology (RSM) with the Box-Behnken design (BBD) was used for modeling and optimization of the process parameters. RSM used three variable designs namely particle size of wood of 2.38, 3.36, and 4.76 mm, respectively, pyrolysis temperature of 370, 400 and 430°C, respectively, and pyrolysis times 90, 120 and 150 minutes, respectively, with the total of 15 experimental runs. The responses of the BBD fitted with a second-order polynomial equation, illustrating the wood vinegar yield was Y = 15.20 + 0.31 X1 + 5.00 X2 + 0.48 X3 – 1.84 X12 – 1.18 X22 + 0.63 X1.X2 + 0.35 X1.X3 + 0.31 X2.X3 – 0.27 X3.X3.  The optimal conditions found to be at the particle size of wood, pyrolysis temperature, and pyrolysis time were 4.76 mm, 475 °C, 195 minutes, respectively, and yield of wood vinegar was 22.90%.
PERTUMBUHAN PEREPAT (Combretocarpus rotundatus Miq) PADA MACAM MEDIA DENGAN PENAMBAHAN PUPUK NPK DI PERSEMAIAN Kasli Kasli; H. A. Oramahi; Gusti Hardiansyah
EnviroScienteae Vol 17, No 2 (2021): ENVIROSCIENTEAE VOLUME 17 NOMOR 2, AGUSTUS 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v17i2.11499

Abstract

It is highly hoped that the recovery of damaged and degraded peat swamp forest will be implemented immediately, given the function of peat swamp forest which is very vital for the sustainability of the ecosystem. The development of tree species original in the perepat type of peat swamp forest (Combretocarpus rotundatus Miq) is needed. Provision of good and quality fasting type seeds can be done by seeding in the nursery. This study aims to find the best type of planting medium in increasing accelerator growth in the nursery and obtaining the right dosage of NPK fertilizer to increase the growth of the nursery accelerator. The media used were peat soil and ultisol soil with the following treatment design : (M1 = peat soil, M2 = ultisol soil, and M3 = mixture of peat soil and ultisol soil with a ratio of 1: 1), then the addition of the NPK fertilizer dosage used is (P0 = 0 g, P1 = 75 mg, P2 = 150 mg , P3 = 225 mg, and P4 = 300 mg.). using the factorial experiment method with a completely randomized design. The results showed that the most suitable medium for the growth of seedlings was using peat media. The application of NPK fertilizer can increase the growth of fasting perepat in the nursery until the age of 3 months by giving a significant effect on growth in height, diameter and number of leaves. The dose of NPK fertilizer is 225 mg. resulting in the best and economic growth enhancement.
Co-Authors . SUPARTO Abi, . Abidin, Syamsul Alkhadi Apriliansyah, Apriliansyah Arrafi Nursyahdi Ayong Hiendro Ayu, Masjuni Cerita Bernita Purba, Cerita Bernita Christanti Sumardiyono Christanti Sumardiyono Darwanti, Herlina Deli, Deli Dina Setyawati Dirhamsyah, Muhammad Efitanus Angga Windra Elvi Rusmiyanto Pancaning Wardoyo, Suci Lestari, Mukarlina, Eva Faja Ripanti Evy Wardenaar Farah Diba Farah Diba Farah Diba - Fathul Yusro Gusti Eva Tavita Gusti Hardiansyah Habibi Habibi Hafiz Ardian Haryadi - Haryadi Haryadi Haryadi Haryadi Hendra Prawira Herlina Darwati Idham . Irawan, Ria Iskandar . Iswan Dewantara Joni, Alfius Juanita Juanita Juanita Juanita Julia, Lusiana Julio, Yulius Rio Junisa, Junisa Kasli Kasli Kharismanto, Dedang Kris tianti Kustiati Kustiati Kuswadi Liza, Liza Lodovika, Patrisia Lolyta Sisilia Lolyta Sisillia M Idham, M M. Irfani Hendri M. M. Dirhamsyah Marsiana, Marsiana Marwanto Marwanto, Marwanto Maurisa, Tirsa N Nurhaida Nensi, Wilhelmina Niconaus Niconaus Novita, Maria Nurhaida Nurhaida Nurhaida, . Nursamsi Pusposendjojo Nursamsi Pusposendjojo Nursamsi Pusposendjojo, Nursamsi Paulus Paulus Purnama Darmadji Purwati . Rahmawati Rahmawati Rahmawati Ratna Herawatiningsih Reine Suci Wulandari Rendiawati, Rendiawati Rendra Antra Pardosi Ria Armunanto Riadi, Richi Rizka Diah Permana Rizka Diah Permana Ruqiah Ganda Putri Panjaitan sairi, agus Santoso, Ida Riyanti Sauji, muhamad Seki, Weliam Siallagan, Tamauli Simangunsong, Muhammad Iqbal Singgih Priyamto Slamet Rifanjani Sofian Zainal Sofyan Zainal Sudirman Muin Tsuyoshi Yoshimura Ulvatur Rochmawati Nauli Utari, Veny Utomo, Kiki Prio wah dina Wahdina - Wahdina . Wahdina, Wahdina Widya Anggraeni Widya Anggraeni Wiwik Ekyastuti Wiwik Winarsih Wuri Prihatiningtiyas Yanieta Arbiastutie, Yanieta Yanti Hikma Yeni Mariani Yolandra, Utin Kenny Yordanus Dediwanto Yusuf, Rizky Oktaviani Zefanya Alviolita Zulpitasari, Melinda