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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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Abstract

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
Pemberdayaan Masyarakat Desa melalui Manajemen Partisipatif: Penelitian Muhammad Haris; Kiki Kosasih; Agus Rahmatullah; Wawan Lulus Setiawan
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.3298

Abstract

This research explores the role of participatory management in empowering rural communities and its impact on sustainable development. The main focus is directed towards the mechanisms of community involvement in decision-making, program implementation, and village development evaluation. Through a qualitative approach with case studies in several villages in Indonesia, this research shows that the systematic implementation of participatory management can enhance residents' sense of ownership of village programs, strengthen social capital, and produce development that is more responsive to community needs. This research refers to the literature and recent study results, including from Ikopin University, to strengthen the theoretical foundation and analysis.
ANALISIS TINGKAT PENDAPATAN NELAYAN KAMPUNG BIDUK-BIDUK DI KABUPATEN BERAU: ANALISIS TINGKAT PENDAPATAN NELAYAN KAMPUNG BIDUK-BIDUK DI KABUPATEN BERAU Agus Rahmatullah
ECO-BUILD Economy Bring Ultimate Information All About Development Journal
Publisher : Prodi Ekonomi Pembangunan, Universitas Muhammadiyah Berau

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Abstract

The purpose of research that is executed is for calculating and analyze level of income fishermen their Biduk-Biduk In Kabupaten Berau.While uses in this study is to provide an illustration on level of income their Biduk-Biduk In Kabupaten Berau and as information for the government to determine the steps will improve the income especially the fishermen in their Biduk-Biduk.Instrument the analysis used in this research is the average count. Based on the research done it was discovered that the rata-rata the fishers catch broke out at the village the same product with traditional Biduk-Biduk In Kabupaten Berau, pt pgn promised to supply the value of t to count up all ( who came after him and ) was recorded at 9,054 while t table ( tt ) was recorded at 1,691 means a sense of ownership the value of t to count up all ( ) who came after him and was greater than the value t table ( who came after him and & gt; tt ) , as a result of this hypothesis advanced by writer had been obtained by the , and what that means is the yield suggests that the income fishermen who sell their goods in the kampongs are Biduk-Biduk revenues from the divestment were built with the sweat of the needs of decent living khl is regretted by ( ) Kabupaten Berau in years 2017. There are approximately fishermen who as the principal subject should be the priority in the development of the fisheries the district area and this Berau .There are approximately fishermen who main insight into the subject of this country in its development .