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All Journal MARINA CHIMICA ACTA Al-Kimia Jurnal Ilmu Alam dan Lingkungan Jurnal Pengabdian kepada Masyarakat COVIT KOLONI West Science Interdisciplinary Studies West Science Interdisciplinary Studies Nata Palemahan: Journal of Environmental Engineering Innovations
Armus, Rakhmad
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Pengaruh Variasi Ketebalan Media Filtrasi Terhadap Penurunan Kadar Besi (Fe) Air Sumur Gali Sappewali, Sappewali; Muke, Cindi Meisin; Armus, Rakhmad; Aminah, Sitti
Jurnal Ilmu Alam dan Lingkungan Vol. 15 No. 2 (2024): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pencemaran air sumur gali sering kali disebabkan oleh komponen anorganik dan organik, seperti kadar besi (Fe), yang dapat menimbulkan masalah kesehatan dan lingkungan. Salah satu cara untuk menurunkan kandungan besi dalam air sumur gali adalah melalui metode filtrasi dengan menggunakan media multifilter. Tujuan penelitian ini adalah untuk mengetahui variasi ketebalan media zeolit, arang aktif, dan silika yang paling efektif dalam menurunkan kadar besi (Fe) dalam air sumur gali di Kampung Rappocidu, Kecamatan Somba Opu, Kabupaten Gowa. Penelitian ini merupakan eksperimen semu dengan rancangan pretest-posttest, yang dilakukan dengan tiga kali pengukuran. Data hasil penelitian dan pemeriksaan laboratorium kemudian diolah dan dianalisis menggunakan uji statistik deskriptif. Hasil penelitian menunjukkan bahwa pada kontrol, kadar besi (Fe) sebesar 4.21 mg/L. Setelah perlakuan, diperoleh rata-rata 1.59 mg/L pada T1 dengan efektivitas sebesar 62.23%; 1.18 mg/L pada T2 dengan efektivitas sebesar 71.97%; dan 0.67 mg/L pada T3 dengan efektivitas sebesar 84.08%. Urutan media filter yang paling efektif adalah T3 > T2 > T1.
Spectroscopic Characterizations of Sediment in Karanrang Island (Spermonde Archipelago) using FT-IR, XRF and XRD Firman, Nur Faiizah Aqiilah; Armus, Rakhmad; Maming; Zakir, Muhammad; Permatasari Hasra, Adji; Fuad Fathurahman, Achmad
Al-Kimia Vol 12 No 2 (2024): DECEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v12i2.41680

Abstract

Research about spectroscopic characterizations of sediment in Karanrang Island has been carried out. This research aimed to determine the content of mineral in sediment before doing further research (measurement 14C activity in sediment). Sediment sampling was conducted in the middle of the island with a depth of 0.5; 1.0 and 1.5 m. Sediment was analysed by Fourier-transform infrared (FT-IR), X-ray fluorescence (XRF) and X-ray diffraction (XRD). Based on the analysis, minerals were found lime (CaO), aragonite (CaCO3), silicon (Si), quartz (SiO2), strontium (Sr) and strontium oxide (SrO). Minerals contained in sediment are CaO (11.02; 11.20 and 12.11 %), CaCO3 (49.72; 51.84 and 53.57 %), Si (2.89; 3.53 and 3.43 %), SiO2 (11.02; 11.04 and 9.96), Sr (10.19; 7.52 and 10.03 %) and SrO (12.40; 11.96 and 9.15 %). Ca was found in the form of CaO and CaCO3. The results show that CaCO3 was the highest of mineral content in sediment. It can be concluded that sediment in Karanrang Island can be used as a sample for measuring 14C activity.
Rancangan Reklamasi Lahan pada Kegiatan Pasca tambang Bijih Nikel di PT Citra Lampia Mandiri Malili Fauziah, Fauziah; Muhlis, Muhlis; Muhtar, Muhtar; Fatmawati, Fatmawati; Armus, Rakhmad
KOLONI Vol. 2 No. 2 (2023): JUNI 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v2i2.36

Abstract

The contribution of the mining sector to forest destruction in Indonesia has reached 10% and is now increasing every year to reach 2 million ha. Efforts to improve ex-mining land is by reclamation. The purpose of this study is to determine the design of reclamation activities and to evaluate the success of reclamation at PT. Citra Lampia Mandiri. The research method used is descriptive method with data collection techniques that are participant observation. Reclamation activities are carried out in several stages and activities that are systematic and well planned which have links between one activity and another in an effort to improve land quality. To determine the success rate of reclamation by providing an assessment of each reclamation activity, namely land use and revegetation, erosion and sedimentation control, top soil management, revegetation activities and plant maintenance. The results of the evaluation of the success rate of reclamation at PT. Citra Lampia Mandiri is 83% with good description.  
ANALISIS LAJU PERUBAHAN TUTUPAN LAHAN DI KABUPATEN SINJAI SECARA TEMPORAL Muhlis, Muhlis; Fatmawati, Fatmawati; Sappewali, Sappewali; Muhtar, Muhtar; Armus, Rakhmad; Tanry, C. Selry
KOLONI Vol. 1 No. 2 (2022): JUNI 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v1i2.266

Abstract

Land cover change is a major problem with environmental sustainability. The impact of the increasing population is urgent for the need for land for human activities. The purpose of this study is to determine the magnitude of land cover changes that occur in Sinjai Regency for the period 2014 to 2022. The research uses quantitative research. That is research that starts from a specific plan or a detailed set of questions or hypotheses. This research is closely related to the process of enumerative induction (induction based on calculations). Based on the analysis using imagery data, the rate of land change in Sinjai district was obtained as follows: : land cover in the form of mixed land decreased by 287.61 Ha, secondary forest decreased by 135.98 Ha, primary forest by 20.04 Ha, water body by 140.46 Ha and other uses increased by 586.53 Ha. Keywords: rate of change, land cover, temporal
LAJU FUNGSI LINDUNG DAS SECARA TEMPORAL BERDASARKAN DATA PENGINDERAAN JAUH DI KABUPATEN SINJAI Muhlis, Muhlis; Khalid, Garwan; Fatmawati, Fatmawati; Armus, Rakhmad; Sappewali, Sappewali; Tanri, C. Selry
KOLONI Vol. 1 No. 4 (2022): DESEMBER 2022
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/koloni.v1i4.429

Abstract

Land cover change is a transition process, such as agricultural land does not immediately turn into built-up land but into grass/soil or shrubs land cover change the transition process of land cover change. This study aims to (1) Determine the rate of change in the temporal function of the hedge. (2) Determine the value of the protection coefficient based on the results of satellite imagery analysis. The method used in this study is spatial descriptive, with land units as units of analysis or mapping units. In spatial description, the results of the study will be described and displayed in the form of a map. In this study, it will be described spatially and temporally the land cover and its effect on the index of protected function of the research area (Sinjai Regency Watershed). The analysis used is spatial analysis whose processing uses a Geographic Information System, with outputs including Land Use Maps and Land Cover Maps. In the period 2014 - 2022, there was a dynamic change in land cover in the Sinjai Regency watershed. The largest land cover that has changed is miscellaneous use which changed 49.87%, then mixed land which changed 24.66% and water body 12.20%. The index of the protected function of the Sinjai Regency Watershed in 2014 was 0.57 and in 2022 it was 0.50. During the period 2014-2022 there was an increase in the hedging function index by 0.02. Keywords: Temporal, Protected coefficient, Spatial
Optimalisasi Kualitas Biogas: Penyisihan Zat Pengotor dari Limbah Cair Tahu dengan Metode Adsorpsi Wahyuni, Besse Sri; Musdania, Musdania; Tanri, C. Selry; Armus, Rakhmad
Nata Palemahan: Journal of Environmental Engineering Innovations Vol. 2 No. 1 (2025)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/natapalemahan.v2i1.6553

Abstract

Gas metana (CH4) merupakan gas yang dihasilkan oleh aktivitas bakteri anaerobik atau hasil fermentasi dari bahan-bahan organik yang dapat terurai. Biogas mengandung metana, H2O, CO2 dan gas-gas lain dalam jumlah kecil. Penelitian ini bertujuan untuk mengetahui tingkat daya serap adsorben silica gel dalam menyisihkan zat pengotor biogas terhadap limbah cair industri tahu dengan metode adsorpsi.  Penelitian dilakukan dengan uji coba di Laboratorium dan dianalisis secara kuantitatif dengan metode adsorpsi menggunakan adsorben silika gel yang telah diaktifkan dengan konsentrasi NaOH 1N; 0,5 N; 0,25 N; 0,125 N; dan 0,0625 N untuk penyisihan CO2 sedang silika gel tanpa pengaktifan NaOH untuk menyisihkan H2O. Hasil penelitian menunjukkan bahwa kandungan CO2 pada konsentrasi NaOH 1 N (0,016%), 0,5 N (0,013%), 0,25 N (0,017%), 0,125 N (0,020%), dan 0,0625 N (0,016%) dengan persentase penurunan masing-masing  0,006%; 0,009%; 0,005%; 0,002%; dan 0,006% dari kontrol 0,022%. Sedangkan H2O tidak terdeteksi karena mengalami penguapan. Dari hasil penelitian tersebut  maka penyisihan CO2 dan H2O dengan metode adsorpsi perlu ditentukan waktu kontak adsorpsi sehingga zat pengotor biogas yang terserap semakin besar.
Co-Authors Abdul Tahir Ahyar Ahmad Ahyar Ahmad Alfian Noor Alfian Noor Alfian Noor C. Selry Tanri C. Selry Tanry Dwifitrah, A Fatmawati . Fatmawati Fatmawati Fatmawati, Fatmawati Fauziah Fauziah Firman, Nur Faiizah Aqiilah Fuad Fathurahman, Achmad Garwan Khalid Harlina, Sitti Harry RJ, A Irdam Irdam Irdam, Irdam Khalid, Garwan Kushariyadi Kushariyadi Kushariyadi Kushariyadi Maming MARIA BINTANG Muhammad Lukman Muhammad Zakir Muhlis Muhlis Muhlis Muhlis Muhtar Muhtar Muhtar Muhtar Muke, Cindi Meisin Musdania, Musdania Permatasari Hasra, Adji Sappewali Sappewali Sappewali Sappewali, Sappewali Tanri, C. Selry Tanry, C. Selry Tungga Bhimadi Tungga Bhimadi Karyasa Usman Wahyuni, Besse Sri Zhalianti, Desvira Zulfi, M.