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All Journal Jurnal Silva Samalas: Journal of Forestry and Plant Science Jurnal Penelitian Hasil Hutan
Muhammad Sadir
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Environmental Science Materials Science & Nanotechnology

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KARAKTERISTIK DAN DAYA JERAP POLUTAN ARANG AKTIF DARI BATANG KENAF (Hibiscus cannabinus L.) Muhammad Sadir; Dede Hermawan; Ismail Budiman; Gustan Pari; Jajang Sutiawan
Jurnal Penelitian Hasil Hutan Vol. 40 No. 1 (2022): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2022.40.1.7-18

Abstract

Kenaf is one of the plants fiber that deries kenaf stems into biomass waste. The utilization of kenaf stem waste could be usedas an ingredient for making activated charcoal. The purpose of this study was to analyze the effect of activation temperature on theproperties of activated charcoal and its pollutant adsorption capacity based on Indonesian Standart (SNI 06-3037-1995) ontechnical activated charcoal. Activated charcoal was made of hydro charcoal soaked into H3PO4 and K2CO3 for 24 hours, thenphysically activated at temperatures 600, 700, and 800°C. The results showed that all activated charcoal met the technical activatedcharcoal quality requirements set by the SNI 06-3730-1995 standard for parameters moisture content and volatile matter content,but only some activated charcoal could meet the requirements for ash content, bound carbon and iodine adsorption capacity. Activatedcharcoal formaldehyde, ammonia, chloroform, and benzene adsorption capacity increases with increasing activation temperature. Thebest activated charcoal by yield and the adsorption iodine using K2CO3 activator was at 700°C, and H3PO4 activator was at600°C, while the best adsorption activated charcoal formaldehyde, ammonia, chloroform, and benzene at temperature 800°C.
INVENTARISASI KAYU AJANG KELICUNG (Diosphyros macrophylla) di BKPH SEJORONG MATAIYANG KABUPATEN SUMBAWA BARAT saleha; Baiq Mirawati; Muhammad Sadir; Baiq Arriyadul Badi’ah
Jurnal Silva Samalas Vol. 8 No. 2 (2025): Article in press
Publisher : Universitas Pendidikan Mandalika

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Abstract

The population of ajang kelicung wood (Diospyros macrophylla) is increasingly threatened by escalating pressures on forest resources. The primary threats stem from human activities, including illegal logging, land conversion, and environmental degradation. This study aims to assess the population of Diospyros macrophylla in the BKPH Sejorong Mataiyang area. The method employed was cluster sampling technique, utilizing 10 sample plots each measuring 100 m × 100 m. The parameters measured in this study included branch-free height, diameter, and total height of all Diospyros macrophylla trees across a 200 ha area. The results revealed that, out of the ten observed plots, Diospyros macrophylla was present in only six. A total of 103 individuals were recorded in these six plots, whereas the remaining four plots lacked any population of this species due to conversion into agricultural land by local communities. This conversion was facilitated by the area's designation as limited production forest in Desa Talonang Baru, which permits land utilization. Further vegetation analysis indicated that the relative density of this species was 10.32%, falling into the low category; however, it exhibited a very high relative frequency of 107%. The combination of these values yielded an Importance Value Index (INP) of 117.32%, signifying a high ecological role for Diospyros macrophylla despite its quantitatively sparse population.
Co-Authors Baiq Arriyadul Badi’ah Dede Hermawan Gustan Pari Ismail Budiman Jajang Sutiawan Mirawati, Baiq Saleha