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Search results for , issue "Vol 14, No 8 (1996): Buletin Penelitian Hasil Hutan" : 3 Documents clear
ANALISIS PENGEMBANGAN MODEL HUTAN TANAMAN INDUSTRI POLA MOSAIK DENGAN PENDEKATAN PROGRAM LINIER : Suatu Gagasan Pendekatan untuk Daerah Padang Lawas, Sumatera Utara Nasendi, B D; Hasanudin, Hasanudin; Nugroho, lwan; Mulyaningrum, Mulyaningrum; Karyono, O K; Tryono, Tryono; Murod, Abdul; Sipayung, Walpen
Jurnal Penelitian Hasil Hutan Vol 14, No 8 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8076.688 KB) | DOI: 10.20886/jphh.1996.14.8.291-307

Abstract

A Study of Industrial Plantation Forest model in Padang Lawas, North Sumatera using new concept of HTI (HTI - Mozaic) as HTI - Mix cropping or HTI - agroforestry, as it is not only for wood production but also for agriculture (Horticulture Crop) and grass for cattle was conducted.Optimal solution using Linear Programming approach shows that plant composition ofIndustrial Plantation Forest-Mozaic development in Padang Lawas area are; shorea (10000 ha ), albizia (6914 ha), akasia (9375 ha), palm oil (4757 ha), king grass and brachiaria (2499 ha ). Shorea has a highest shadow price and critical constraint, so the increase in land allocation for shorea will be profitable. Furthermore, post-optimal analysis indicates that land area for shorea is increased double, profit will also increase about Rp 49,361 billions. While for other commodities solutions are relatively stable.
ANALISIS KOMPONEN KIMIA DARI KAYU SENGON DAN KAYU KARET PADA BEBERAPA MACAM UMUR Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 14, No 8 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4173.066 KB) | DOI: 10.20886/jphh.1996.14.8.321-327

Abstract

This paper reported the result of chemical analysis from sengon (Paraserianthes falcataria) and rubber wood (Hevea brasiliensis) with several age groups. The analysis comprise of the determination of holocellulose, cellulose, lignin, pentosan, ash content, silica content and the solubility in cold water, hot water, one percent of sodium hydroxide and alcohol benzene ex-tractives. These analysis were conducted to determine their basic characteristics and ultimate uses of the wood.The result showed that holocellulose content ranges from 66,46 - 70,90 % , cellulose from 46,62 - 49,88 %, lignin from 29,10 - 33,54 %, pentosan from 15,51 - 17,80 %, ash content from 0,45 - 1,25 %, silica content from 0,24 - 0,52 %, The solubility in cold water ranges from 3,12 - 5,40 %, hot water from 3,89 - 5,65 %, in NaOH 1 % from 13,06 - 16,06 % and in alcohol benzena (1:2)from 2,06 - 4,43 %. .Based on chemical analysis, especially the cellulose, lignin and pentosan content sengon and rubber wood are suitable as raw material for pulp and paper industry, except for 20 years old rubber wood.
PEMBUATAN ARANG AKTIF DARI SERBUK GERGAJIAN SENGON (Paraserianthes falcataria) DENGAN CARA KIMIA Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 14, No 8 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1996.14.8.308-320

Abstract

Experimental study on Sengon (Paraserianthes falcataria) sawdust to produce activated charcoal for water traetment is reported in this paper. The purpose of this research is to study the effect of raw material and chemical on activated charcoal yield and quality. The result showed that the yield of activated charcoal range from 17,75 - 79,90 %, moisture content from 0,20- 8,85 %, ash content from 1,33 - 23,71 %, volatile matter from 1,14 - 7,22 % , fixed carbon from 72,01 - 86,88 % , adsorptive capacity of benzene from 3 ,04 - 15,85 %, sulphuric acid from 2,45 - 45,66 % and adsorptive capacity of iodine from 374,1 - 601,1 mg/g. Based on adsorptive capacity of iodine, good quality of activated charcoal was produced from Sengon sawdust soaked with Na2C03, this criteria has met commercial standard requirement of the American Water Works Assosiation.The quality of water after treatment with activated charcoal shows that the Fe3 + content range from 0,00 - 0,06 mg/l, Na+ from 42,92 - 81,41 mg/g, Mg2+ from 7,57 - 8,92 mg/l, Mn2+ from 0,00- 0,014 mg/l, Zn2+ from 0,00 - 0,011 mg/g, Ca2+ from 22,85 - 27,75 mg/l, NH4+ from 0,057 - 0,082 mg/l, Ct- from 22,91 - 28,93 mg/l, PO34 from 0,20 - 0,43 mg/l and SO24 .from 2,29- 4,98 mg/l.

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