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All Journal Biocelebes KOVALEN: Jurnal Riset Kimia
Agus Rahmatullah
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry

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ADSORBSI ION Pb2+ MENGGUNAKAN ARANG AKTIF KULIT DURIAN DENGAN METODE KOLOM ADSORBSI Nurhaeni Nurhaeni; Musafira Musafira; Agus Rahmatullah
KOVALEN: Jurnal Riset Kimia Vol. 3 No. 1 (2017): Edisi April
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

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Abstract

Research has conducted using of activated charcoal from durian skin as an adsorbent of ion Pb2+ on water. This study aims to determine the effect of high adsorbent activated charcoal of durian skin and influence of adsorbent elution time. The method used in this study is SSA. The research design is applied is an RAL, with an independent variable are high adsorbent and adsorbent elution time. In this research, the variation applied adsorbent is 13.5 cm high, 18 cm, 22.5 cm, and 27 cm and variations adsorbent of the elution time are first, second, third, fourth, fifth, and sixth hour. The results showed that activated charcoal of durian’s skin 27 cm has a higher adsorption with the variation of high adsorbent with high levels of ion Pb is 80.019% and for variations in elution time adsorbent obtained the use of the first hour is more effective , Activated charcoal durian skin can be used as an adsorbent decreased levels of Pb ion in the water until the sixth hour.Keywords:  activated charcoal, adsorbent, durian skin, Pb2+.
KEANEKARAGAMAN JENIS LUMUT (BRYOPHYTA) BERDASARKAN KETINGGIAN DI GUNUNG RORE KAUTIMBU TAMAN NASIONAL LORE LINDU (TNLL) SULAWESI TENGAH Agus Rahmatullah; Ramadhanil Ramadhanil; Mohammad Jamhari
Biocelebes Vol. 9 No. 1 (2015)
Publisher : Biology Department, Mathematics and natural science, Tadulako University

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Flora information of bryophyte in Sulawesi were limited found. Research on the bryophyte diversity at the different elevation of Mount Rore Kautimbu Lore Lindu National Park (LLNP) Central Sulawesi which had conducted from December 2013 to February 2014 was an effort to completed data and information of Bryophyte in Sulawesi. Bryophytes were sampled in three forest type s.a Sub-Montane Forest (1448 masl), Montane (2022 masl) and Alpine (2518 masl). In each zone was placed the plot size is 20 x 20 m sub-plots with measuring 1 x 1 m to substrate rocks, soil, decayed wood and plots 10 x 30 cm on the substrate of the tree. Data were analyzed by calculating the value of frequency, density, an important value index and the index of diversity according to the Shannon-Wiener. Research results gained as much as 41 species consists of 21 species mosses and 20 species of liverworts, which was dominated by the family dicranaceae. Based on the type of diversity Indices according to the Shannon-Wiener diversity was found in the highest zone of bryophytes and Alpine zones (H ' = 2.79) followed by Montane zone (H ' = 2,52) and Sub-Montane zone (H ' = 2.20).   Keywords:Bryophyta, Diversity, elevation, LLNP
Co-Authors Mohammad Jamhari Musafira Musafira Nurhaeni Nurhaeni Ramadhanil Ramadhanil