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Yeni Aprianis
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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PERBANDINGAN KARAKTERISTIK BAHAN BAKU DAN PULP KRASIKARPA (Acacia crassicarpa A. Cunn) UMUR 1 SAMPAI 4 TAHUN Opik Taupik Akbar; Yeni Aprianis; Ruspandi
Jurnal Penelitian Hasil Hutan Vol. 37 No. 2 (2019): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2019.37.2.93-104

Abstract

Krasikarpa wood (Acacia crassicarpa A. Cunn.) is one of the fast growing peatland species for pulp and paper production. Pulp and chemical properties of krasikarpa wood under 4 years old have not been studied intensively. This paper examines pulp and chemical properties of krasikarpa wood during 1–4 years growth. Wood samples were taken from peatland area of Industrial Plantation Forest, PT. Arara Abadi, Riau. Chemical content examined includes extractives content in the solubility of ethanol benzene, lignin, and cellulose contents, while pulp properties studied were basic density, pulp productivity, and wood consumption. Wood samples were cooked using kraft pulping method with 18% alkali active, 25% sulfidity, wood to liquor ratio of 1:4, and temperature of cooking at 165°C for 3 hours. Experiment was designed based on Completely Randomized Design. Results showed that the age factor had a significant effect on all aspects studied. Based on further testing of LSD (Least Significant Differences), the significant effects included: extractive content at 4 years old, cellulose and lignin at 1 years old, pulp yield at 1 year old, density at 4 years old, wood productivity, and wood consumption at age 1, 3, and 4 years. After two years, extractive content start to increase, the lignin and cellulose content start to stabilize, and the pulp yield start to decline. Wood consumption decreases with age, the older the tree age, the lower the wood consumption.
PENGGUNAAN Phanerochaete chrysosporium PADA PENGOLAHAN PULP BIO-SEMI-MEKANIS KAYU TERENTANG (Campnosperma auriculata Hook.f) Yeni Aprianis; Denny Irawati; Sri Nugroho Marsoem
Jurnal Penelitian Hasil Hutan Vol. 34 No. 3 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.3.231-239

Abstract

Terentang wood (Campnosperma auriculata Hook.f) is relatively low in specific gravity (0.3), hence its utilization as pulp by chemi-mechanical is an alternative process. Energy consumption was reduced by applying lignin degrading fungi (Phanerochaete chrysosporium) as pretreatment in the chemi-mechanical process. This paper examines the effects of P. chrysosporium incubation periods into chemical components and energy refining consumption of terentang wood. Four percent of NaOH was used in the chemi-mechanical process, and incubation periods studied were 0 (control), 3, 4 and 5 weeks. Results showed that P. chrysosporium significantly affected the weight loss, chemical properties, and refining energy consumption of terentang wood pulping process. Wood chip weight loss was about 15.95-21.31% and alpha-cellulose raised up to 6.77%. Five weeks incubation time decreased lignin content up to 22.97% and saved the refining energy up to 22.7%.
KARAKTERISTIK ARANG AKTIF DARI TUNGGAK Acacia crassicarpa Yeni Aprianis
Jurnal Penelitian Hasil Hutan Vol. 30 No. 4 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.4.261-268

Abstract

Stump wastes of the felled tree Acacia crassicarpa are not yet used although they are available in large quantity. Converting the stump into actived charcoal maybe one of the most possible uses of the treestump. This experiment investigates the properties of actived charcoal made from Acacia crassicarpa treestump. The treestump was carbonized into charesal, then activated by immersing in H,PO, solution with concentration of 5% and 10% for 90 minutes. The treated charcoal was then beated in retort at various temperatures of 650C, 750°C and 850C. The result showed that good quality of activated charcoal was obtained by using 10% H,PO, at temperature 750 C. The yield of the activated charcoal at this condition was 57%, water content 0,49%, volatile matter 7,37%, ash content 4,22%, fixed carbon 88,41%, adsorptive capacity of indine 1115,5 mg/g, adsorptive capacity of benzene 25,52%, adsorptive capacity of cloroform 41,29% and adsorptive capacity of formaldebyde 45,91%. These characteristics met the SNI requirements and the charenal can be used for water purification. It can increase pH of water from 5,63 to 6,9 and reduce metals Fe and Zn respectively from 0,600 and 0,037 mg/L. into 0,424 and 0,024 mg/1. The structure of charcoal is more reguler after activation.
Co-Authors Denny Irawati Opik Taupik Akbar Ruspandi Sri Nugroho Marsoem