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All Journal Chimica et Natura Acta JURNAL PHOTON Dinamika Lingkungan Indonesia Jurnal Senpling Multidisiplin Indonesia
T. Abu Hanifah
FMIPA Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Nursing Physics

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Pengaruh Aktivator Terhadap Kemampuan Bubuk Biji Alpukat (Persea americana Mill) dalam Menjerap Ion Timbal (II) Ganis Fia Kartika; Itnawita Itnawita; T. Abu Hanifah; Sofia Anita; Nur Oktri Mulya Dewi; Suharsimi Absus
Chimica et Natura Acta Vol 5, No 1 (2017)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.917 KB) | DOI: 10.24198/cna.v5.n1.12814

Abstract

Penggunaan limbah buah sebagai adsorben berbiaya rendah untuk mengurangi pencemaran akibat logam telah menarik banyak perhatian. Pada penelitian ini akan dibuat adsorben dari bubuk biji alpukat (Persea Americana Mill) yang diaktivasi menggunakan dua jenis aktivator yaitu HCl dan H2SO4. Penelitian ini bertujuan untuk melihat pengaruh aktivator terhadap bubuk biji alpukat dalam menjerap ion Pb(II). Variasi konsentrasi aktivator (2,5; 5; dan 7,5%) dilakukan untuk mendapatkan adsorben dengan kemampuan daya jerap terbaik.Hasil karakterisasi terhadap bubuk biji alpukat yang telah diaktivasi menunjukkan bahwa konsentrasi optimum HCl sebagai aktivator adalah 2,5%, sedangkan H2SO4 yaitu 7,5%. Bubuk biji alpukat yang telah diaktivasi kemudian diuji kemampuan daya jerapnya terhadap ion Pb(II). Kandungan logam Pb dalam larutan sebelum dan setelah proses adsorpsi dianalisis menggunakan metode Spektroskopi Serapan Atom. Hasil penelitian menunjukkan bahwa kedua jenis aktivator tersebut dapat meningkatkan penyerapan timbal dalam larutan jika dibandingkan hasil adsorpsi bubuk biji alpukat tanpa aktivasi. Efisiensi penjerapan bubuk biji alpukat yang diaktivasi menggunakan HCl dan H2SO4 masing-masing sebesar 96,81 dan 83,56% terhadap larutan Pb dengan konsentrasi 10 ppm. Hal ini menunjukkan bahwa aktivator HCl bersifat lebih baik dibandingkan H2SO4 dalam menjerap ion Pb(II) dalam larutan.
ANALISIS KANDUNGAN FORMALDEHID DALAM MINUMAN DENGAN KEMASAN PLASTIK POLYETHYLEN TEREFTALAT (PET) YANG BEREDAR DI KODYA PEKANBARU Itnawita -; T. Abu Hanifah; Amelia -; Khoirul -; Eriesa -
Sistem Informasi Vol 4 No 2 (2014): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v4i2.179

Abstract

Salah satu kelemahan dari plastik Polietylen tereftalat (PET) yang digunakan sebagai kemasan minuman adalah terjadinya migrasi monomer-monomer berupa formaldehid dan asetaldehid selama penyimpanan. Dari hasil penelitian terhadap beberapa jenis minuman dengan kemasan PET yang beredar di Kodya Pekanbaru menunjukkan terjadinya peningkatan kandungan formaldehid dalam minuman selama penyimpanan. Kandungan formaldehid dalam minuman yoghurt yang disimpan sampai 70 hari adalah 1,488 mg/L dan dalam HDPE 3,250 mg/l, minuman berkarbonat 2,31 mg/l dan air mineral 0,27 mg/l yang disimpan selama 30 hari dalam keadaan terpapar matahari. Penyimpanan minuman joghurt, dan minuman berkarbonat setelah 50 hari telah melebihi NAB yang ditetapkan oleh tiga lembaga organisasi di PBB yaitu ILO, UNEP serta WHO yaitu 1 mg/L. yang diperbolehkan. sedangkan air mineral masih berada dibawah standar.
Ketersediaan Unsur Besi, Molibdenum, Aluminium dan C/N Total Pada Lahan Gambut Bekas Terbakar Berulang di Kabupaten Bengkalis T. Abu Hanifah
Dinamika Lingkungan Indonesia Vol 6, No 1 (2019)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.312 KB) | DOI: 10.31258/dli.6.1.p.8-13

Abstract

Land fire will be impact to the physical and chemical characteristics of soil that caused of  decomposition proces. The different land fire frequency will be affect to different in the soil composition. To know how far that the composition is different so it need to do research about the contains of micro element such as Fe, Mo, Al available and ratio C/N in area Pakning Asal, Bengkalis Regency. The contains of Fe and C-organic was determined using Spectrophotometer UV-VIS, the contains of Mo and Al was determined using Atomic Absorbtion Spectrophotometer and the contain of N was determined by Kjeldahl method. Analysis result showed that contains of Fe, Mo, Al and ratio C/N in unburnt soil, once burned soil and several times burned (2 – 3 times in last 5 years) there were 14.1566 mg/Kg; 15.3151 mg/Kg and 5.7677 for Fe; 0,0548 mg/Kg, 0.1345 mg/Kg and 0.0830 mg/Kg for Mo; 12.5655 mg/Kg, 12.2220 mg/Kg and 8.9683 mg/Kg for Al and was increased 16.6855; 20.6787 and 25.5206 for ratio C/N.
Perubahan Sifat Fisik Kimia Tanah Sebagai Dampak Kebakaran Lahan Gambut Kebun Sawit T Abu Hanifah; Sofia Anita; Idwar Idwar
Dinamika Lingkungan Indonesia Vol 10, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.10.1.p.29-33

Abstract

Based on the survey results in the last seven years (2010 - 2017), palm plantations in the Pakning Asal area, Bengkalis Regency experienced fires with different frequencies. Some lands that not burned, once burned and several times burned. The burned areas can affect the composition and nutrient content of the soil. Burning peatlands cause irreversible drying due to the heating of the peat. This study aimed to analyze the effect of fires with different frequencies on the total Fe, Al, Mo and C/N content. Total Al and Mo content was determined using Atomic Absorption Spectrophotometer. The total Fe and C content was analyzed using UV-Vis Spectrophotometer. Total N was analyzed using the Kjeldahl method. The results showed that the total Fe, Al, and Mo content increased in the soil burned once and the C/N ratio increased with the increasing frequency of fires. The total Fe, Al, and Mo content in the soil burned once was 69.20 mg/Kg, 33.83 mg/Kg, 2.16 mg/Kg and the C/N ratio increased from 16.51 to 25.31, respectively. The impact of different fire frequencies affected the chemical content of the soil. Land fires have positive and negative impacts. The positive impact increased pH of soil palm plantations, while the negative impact caused air pollution and damage to soil structures.
BIOSORBEN ARANG BUAH JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK MENJERAP ION LOGAM MERKURI (II) DALAM AIR T Abu Hanifah; Sofia Anita; Itnawita Itnawita; Ganis Fia Kartika; Romauli Romauli
JURNAL SENPLING MULTIDISIPLIN INDONESIA Vol 2, No 2 (2024)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/senpling.v2i2.20

Abstract

The aim of this study was to analyze the adsorption ability and optimum stirring speed of non-activated white jabon fruit carbon and activated carbon on the absorption of mercury (II) ions. White jabon carbon is made through a carbonization process at a temperature of 300ºC for 30 minutes, then activated with NaOH and characterization of activated carbon is also carried out according to SNI 06-3730-1995. The optimization of stirring speed was carried out by varying the stirring speed of 60, 80, 100 and 120 rpm. The results of the characterization of activated carbon of white jabon fruit in this study showed a moisture content of 1.98%, ash content of 3.11%, iodine adsorption capacity of 1160.5285 mg/g and methylene blue adsorption capacity of 25.1024 mg/g. The results of the adsorption test on activated carbon of white jabon fruit showed that the optimum stirring speed condition was 80 rpm with an adsorption efficiency of 99.78% and an adsorption capacity of 0.9641 mg/g. Based on the results of the SEM test, it was found that the activated carbon had more pores than unactivated. 
BIOSORBEN BUAH JABON PUTIH (Anthocephalus cadamba Miq.) UNTUK MENJERAP ION LOGAM MERKURI (II) Faradilla Milenia; T. Abu Hanifah; Sofia Anita; Mufidah Salsabila; Anastasia Kinzky Zipora Nainggolan
JURNAL SENPLING MULTIDISIPLIN INDONESIA Vol 2, No 1 (2024)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/senpling.v2i1.18

Abstract

This aims of this study to determine the efficiency and adsorption capacity of the biosorbent in absorbing mercury (II), determine the adsorption kinetics and isotherm model and the biosorbent regeneration ability of white jabon fruit. The optimization of the biosorbent powder was carried out on the parameters of pH, contact time and adsorbate concentration. The biosorbent is regenerated by desorption using an HCl desorption agent. Jabon fruit biosorbent powder was made through the drying process of Jabon fruit that has been cut and washed and then ground using a mortar and pestle. The results of the physical and chemical characteristics in this study showed a water content value of 8.09%, ash content of 1.32%, iodine adsorption capacity of 753.5812 mg/g and methylene blue adsorption capacity of 24.8632 mg/g. The results of the biosorption test showed that the optimum conditions for the biosorbent powder were pH 6 with an efficiency of 99.728% and a capacity of 4.7855 mg/g,  a contact time of 40 minutes with an efficiency of 99.493% and a capacity of 4.7747 mg/g, at an initial concentration of 80 mgL-1 with an efficiency of 99,912. % and the capacity was 3,5761 mg/g. Based on the FTIR results, the functional groups were C-H aliphatic, C-H aromatic, C=O, C-O and N-H. Based on the results of BET analysis, biosorbent powder had a surface area before adsorption of 3.53039 m2/g, after adsorption I 0 m2/g and after regeneration II 0.17056 m2/g. Based on the SEM-EDS results, it was found that the jabon fruit biosorbent powder had elements of O, C, Na, N, Cl, K, Hg and had an uneven texture. However, because it was in powder form, the distance between the particles looked very tight and has a small grain size. So the surface texture looked very smooth. In this study, the percentage of regeneration was 98.36%. The adsorption kinetics of this study follows the second-order Pseudo equation where the equation was y = 0.2097x - 0.0075 with R2 = 1 and K= 5.86339 gmg-1min-1, assuming a chemical adsorption process which includes intervalence forces or electron exchange between the adsorbent and adsorbate and the adsorption isotherm model follows the Langmuir equation with the equation y= 0.019x + 0.0153 with R2 = 0.9665 It is assumed that the active site on the surface of the adsorbent is homogeneous. 
Co-Authors Amelia - Anastasia Kinzky Zipora Nainggolan Anita, Sofia Eriesa - Faradilla Milenia Ganis Fia Kartika Idwar, , Itnawita Itnawita Khoirul - Mufidah Salsabila Nur Oktri Mulya Dewi Romauli Romauli Suharsimi Absus