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Articles 5 Documents
Search results for , issue "Vol 14, No 2 (1996): Buletin Penelitian Hasil Hutan" : 5 Documents clear
KUALITAS ARANG AKTIF DARI 5 JENIS KAYU (Activated charcoal quality from 5 wood species) Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 14, No 2 (1996): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4038.745 KB) | DOI: 10.20886/jphh.1996.14.2.60-68

Abstract

Experimental study on several HTI wood species to produce activated charcoal is reported in this paper. The result showed that the yield  of activated charcoal range from 30,35  - 43,25 %,  moisture content from 9,23 - 13,34  %, ash content from 1,62  - 6,76 %, volatile matter from 4,94 - 6,65%, fixed  carbon from  88,30-   91,73   %, adsorptive capacity of iodine from 1002 - 1130 mg/g and adsorptive  capacity  of benzene from 33,50 - 44,02 %. Based on adsorptive capacity of iodine, good  quality  of  the  activated  charcoal  was produce from  sengon  (Paraserienthes falcataria) wood species, this  criteria  has  met the commercial standard  requirement of  the Indonesian Industrial Standard and Japanese Standard.The quality  of  the cajeput oil refined with the good quality of activated charcoal experiment shows that the cineol content became 23,17  % from,21,76  %.Key words :  HTI timbers, Activated charcoal, Properties, Quality
SIFAT PEMESINAN SEMBILAN JENIS KAYU DARI NUSA TENGGARA BARAT (Machining properties of nine wood species originated from West Nusa Tenggara) Ginoga, Bakir
Jurnal Penelitian Hasil Hutan Vol 14, No 2 (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.1996.14.2.47-51

Abstract

The quality of machining properties of nine wood  species, i.e. gawil  (Mangifera altissima Blanco.); sana  (T erminalia  bellerica Roxb.); jinarti  (Symplocos brandisii  Ket   V.) ;  tunjang  gunung  (Neonauclea  schlecteri Merr.  et Perry); bayur  (Pterospermum  javanicum  Jungh.); klokos   (Eugenia   grandis    Wight.);  blahui   (Bischoffia  javanica   Bl.);   garu   (Dysoxylum  densiflorum  (Bl.)  Miq.);  and bangsal  (Engelhardtia spicata Lechen  ex B1.),  originated from natural forest in West Nusa Tenggara, has been investigated in air dried condition.The results revealed that the planing,  moulding and  sanding quality varies from  good (II) to very good(I); turning quality generally good (II); while boring quality varies from  very good(I)until verypoor classes (V).Keywords: Machining properties; wood species; natural forest; West Nusa Tenggara.
DAMPAK PENYARADAN KAYU TERHADAP TERJADINYA KETERBUKAAN LABAN DI KAWASAN DUA PERUSAHAAN HUTAN DI RIAU (The impact of log skidding on ground exposure at two forest companies in Riau) Suhartana, Sona
Jurnal Penelitian Hasil Hutan Vol 14, No 2 (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.1996.14.2.52-59

Abstract

This paper presents  the results of the study on ground exposure caused by skidding.  The case study was carried out at two forest companies in Riau in  1995.  The aim of the study were :  I. to find the road skidding condition that shows by the ground exposure caused by skidding, 2. to know the factors influencing the ground exposure and 3. to find  the way of reducing ground exposure.Data collected were the number of trees felled/skidded, the number of trees with diameter 20 cm and up.  length and area of skidding road.   The data was analized  by using the multiple regression.The study showed the following results : 1. The average of non-productive skidding road is 13.4  % from  the number of productive skidding road; 2. The extravagant of tractor operation was 2680 hours; 3. The forest damage was 154.4 m2 per ha;  4.  The ground  exposure caused by skidding  was 14.1  %;  and  5.   The number  of  trees felled/skidded was highly  significant  to ground exposure.Keywords :  skidding,  skidding road, ground exposure.
PEMBUATAN ARANG AKTIF SERBUK GERGAJI TUSAM (Pinus merkusii) UNTUK PENJERNIH AIR LIMBAH INDUSTRI PULP KERTAS DAN AIR SUMUR Pari, Gustan
Jurnal Penelitian Hasil Hutan Vol 14, No 2 (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.1996.14.2.69-75

Abstract

Tulisan ini mengemukakan hasil penelitian pembuatan arang aktif dari serbuk gergaji kayu Tusam (Pinus merkusii) untuk penjernih air. Hasil penelitian sifat arang aktif untuk penjernih air adalah sebagai berikut : Rendemen orang aktif antara 2,02 - 42,38 %, kadar air 4,04 - 9, 78 %, kadar abu 2,02 - 12,37 %, kadar zat mudah menguap 7,21 - 18,94 %, kadar karbon terikat 71,75 - 82,83 % dan daya serap terhadap iodium berkisar antara 676,58 - 963,85 mg/g. Berdasarkan besamya daya serap terhadap iodium, maka kualitas arang aktif yang baik dihasilkan dari serbuk gergaji Tusam dengan waktu reaksi 4 jam dan memenuhi persyaratan Standar Industri Indonesia. Kualitas air dari industri pulp kertas dan air sumur yang telah dijemihkan dengan arang aktif hasil penelitian menjadi lebih baik, terutama untuk ion Fe3+, Mn2+ don Pb2+ kadarnya menjadi turun, tetapi untuk Na+, CJ- dan pH kadarnya menjadi naik dan tetap.
PERANAN BEBERAPA JENIS TANAMAN HUTAN KOTA DALAM PENGURANGAN DAMPAK EMISI LOGAM BERAT DI UDARA Gusmailina, Gusmailina
Jurnal Penelitian Hasil Hutan Vol 14, No 2 (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.1996.14.2.76-83

Abstract

The increase of motorized  vehicles in the city has caused environment problems, especially the air pollution  as  the emission  of gasses  containing  heavy metals such as Pb endangers. Therefore  the selected  of tree city forest  based on  environmental  benefit management  must  be necessary to criteria development forest  city programme.This  article  presents  some  result  of  absorption  and  adsorption  of  Pb  heavy metals  by several plants.  The results showed the Cinnamonunum sp more effective to adsorp the Pb heavy metals  in the air, furthere more Agatliis lorantifolia,  Paraserianthes  falcataria,  and  Swietenia macrophylla.    Whereas Agathis lorantifolia more effectiveto absorp the Pb heavy metals in the air, furthere  more Swietenia macrophylla, Paraserianthes  falcataria, and Cinnamornmum sp.Keywords : Environment, Pb heavy metal, Absorption, Adsorption, Urban forest.

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