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Pengaruh Pemberian Kompos Kiambang dan Pupuk Majemuk pada Pertumbuhan Bibit Kakao (Theobroma cacao L.) Indrawan, Iyan; Kusumastuti, Any; Utoyo, Bambang
Jurnal Agro Industri Perkebunan Volume 3 No. 1, Mei 2015
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v3i1.18

Abstract

The objective of this research is to measure the effect of giant salvinia compost and compound fertilizers on growth of cocoa seedlings. This research has been conducted in State Polytechnic of Lampung experimental garden, Rajabasa, Bandar Lampung on December 2014 until May 2015. The method used was a randomized block design (RBD). The factorial pattern consisting of two factors. The first factor was the rate of giant salvinia compost consists of four levels, namely: K0 = 0 g.polybag-1, K1 = 200 g.polybag-1, K2 = 300 g.polybag-1, and K3 = 400 g.polybag-1. The second factor was the rate of compound fertilizer consists of two levels, namely: M0 = 0 g.polybag-1, M1 = 5 g.polybag-1, M2 = 10 g.polybag-1. Data were analyzed by analysis of variance further significantly different if followed by LSD test at the 5% level of accuracy. Observations included plant height, number of leaves, stem diameter, root length, dry weight, and ratio of root-shoot dry weight. The results showed that giant salvinia affected on plant height, number of leaves, stem diameter, root length, and the ratio of root-shoot dry weight. Compound fertilizer also affected on plant height and number of leaves, stem diameter, root length, and and ratio of root-shoot dry weight. There was an interaction between rate of giant salvinia compost and compound fertilizer on length root.Keywords: compound fertilizer, giant salvinia compost, Theobroma cacao L.Permalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/18
Upcycling Cangkang Kelapa Sawit Menjadi Green Filler Teraktivasi Ultrasonik dan Aplikasinya Sebagai Pengisi Kompon Karet Soeherman, Giffary Pramafisi; Putri, Pridata Gina; Fahrulsyah, Fahrulsyah; Agassi, Taufik Nugraha; Indrawan, Iyan
Teknotan: Jurnal Industri Teknologi Pertanian Vol 19, No 1 (2025): TEKNOTAN, April 2025
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol19n1.4

Abstract

Cangkang kelapa sawit (CKS) merupakan salah satu hasil samping produksi industry pengolahan sawit yang hingga saat ini, di Indonesia, masih belum termanfaatkan secara optimal. Salah satu pemanfaatan CKS sebagai bahan dengan serat tinggi yaitu dengan cara mengubahnya menjadi material tinggi karbon. Material karbon ini dapat digunakan sebagai salah satu alternatif bahan pengisi bagi industry pengolahan karet untuk menggantikan Sebagian besar carbon black (CB) yang tidak ramah lingkungan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh substitusi CB menggunakan green filler CKS teraktivasi ultrasonik terhadap karakteristik mekanis kompon karet berbahan dasar lump. CKS melalui proses pirolisis diubah menjadi arang dan diaktivasi menggunakan ultrasonic dengan frekuensi 40 kHz selama 15 menit. Arang aktif CKS yang diperoleh kemudian ditambahkan ke dalam formulasi kompon sebagai pengganti substitusi carbon black dengan formulasi berbeda sesuai dengan perlakuan. Kompon yang dihasilkan diuji karakteristik curing-nya sebelum dicetak menggunakan hot press. Vulkanisat yang diperoleh kemudian diuji karakteristik mekanisnya yang meliputi kekerasan, kuat Tarik, perpanjangan putus, dan young modulus. Kompon dengan 100% carbon black menghasilkan nilai torsi minimum (ML), torsi maksimum (MH), waktu pemasakan optimum (TC90) dan waktu scorch (ts2) sebesar 13,02 kgf-cm, 34,54 kgf-cm, 232 detik, dan 101 detik secara berturut-turut. Kompon dengan komposisi filler 30 phr CB dan 30 phr arang CKS teraktivasi ultrasonic memiliki ML, MH, TC90, dan ts2 sebesar 9,35 kgf-cm, 12,28 kgf-cm, 98 detik, dan 91 detik secara berturut-turut.
Characterization of Biobriquette from Carbonized Durian Peel Using Coconut Shell as the Binder Soeherman, Giffary Pramafisi; Putri, Pridata Gina; Joen, Deary Amethy Zahrotinufus; Indrawan, Iyan; Pratiwi, Nurma
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 7 No. 3 (2023)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v7i3.347

Abstract

This research aimed to study the characteristics of carbonized durian peel biobriquette using tar as a binder. A 1:10 ratio of binder and carbonized durian peel was used. The 25, 50, and 75% (coded as P1, P2, and P3, respectively) tar were used as a binder alongside tapioca flour to produce a binder with different tar concentrations. The briquette characteristics determined moisture content, ash content, calorific value, density, and water-absorbing capacity. Moisture content ranged from 9.32% to 9,41% for treatments P1 to P3, while the ash content ranged from 12,29% to 13,09%, showing no significant difference among the treatments. Massive difference was observed in calorific value, as P1 gives 5106/35 cal g-1 calorific value while P2 and P3 give 9267.56 and 9694.53 cal g-1, respectively. The density observed was relatively low, ranging from 0.5029 g cm-3 to 0,5685 g cm-2. As for water-absorbing capacity, P3 absorbed the least amount of water, 29.43%. From this research, we can conclude that coconut shell tar has the potential to be utilized as a binder in forming biobriquette from carbonized durian peel.