PREPARASI ARANG BAMBU DENGAN METODE KONVENSIONAL, AKTIVASI TERMAL DAN KARAKTERISASI SERTA APLIKASINYA SEBAGAI ADSORBEN LOGAM Pb(II) DAN Cr(III)

Manurung, Manuntun; Putra, Alfian; Oktavia, Ira

doi:10.24843/jchem.2021.v15.i01.p08

Cited by 2 publications

(8 citation statements)

References 6 publications

(10 reference statements)

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“…Arang yang diperoleh dikarakterisasi kadar air, abu total, zat mudah menguap, dan karbon terikat, serta daya serap terhadap Iod, dan metilen biru mengikuti SNI dan Manurung yang bertujuan untuk menentukan kualitas arang yang dihasilkan [7,14]. Arang hasil karakterisasi terbaik, sebagian tidak diaktivasi disebut ASo, sebagian lagi diaktivasi dengan HCl 0,8 M secara impreqnasi selama 24 jam.…”

Section: Karakterisasi Dan Aktivasiunclassified

“…Larutan disaring dan filtratnya diukur absorbansinya. Selanjutnya dibuat plot antara ion Cr(III) yang terserap dengan pH [7]. Pengaruh suhu diperiksa sama dengan parameter lain kecuali suhu divariasikan dari dari 30, 40 dan 50 o C [15].…”

Section: Pengaruh Ph Dan Suhuunclassified

“…Daya serap iodin menunjukkan kemampuan arang menyerap molekul berukuran kecil sekaligus mengindikasikan bahwa arang memiliki struktur micropori. Semakin besar angka iodin, semakin besar pula daya adsorpsi dari arang terhadap molekul kecil [7,8]. Berdasarkan SNI arang yang baik memiliki bilangan iodin(BI) minimal 750 mg/g .…”

Section: Daya Serap Terhadap Iodin Dan Metilen Biruunclassified

“…Bilangan iodin arang aktif dan arang tanpa aktivasi yang diperoleh berkisar antara 780-870 mg/g, telah memenuhi standar SNI. Adsorpsi terhadap metilen biru memberi gambaran kemampuan arang untuk menjerap molekul berukuran lebih besar, sekaligus menyatakan bahwa arang yang dihasilkan juga memiliki struktur mesopore [7]. Adsorpsi metilen biru(BM) arang tanpa aktivasi dan aktivasi berturut-turut sebesar 265,1975 mg/g dan 384,7862 mg/g, juga melebihi SNI yang mensyaratkan minimal 120 mg/g.…”

Section: Daya Serap Terhadap Iodin Dan Metilen Biruunclassified

“…Namun arang aktif komersial cukup mahal, jadi perlu perhatian untuk mencari sumber bahan baku arang aktif yang murah, mudah didapat, dan dapat diperbaharui. Limbah pertanian yang mengandung selulosa, lignin, cukup tinggi dapat dijadikan sebagai sumber karbon arang aktif, seperti bambu [7,8], cangkang kulit buah karet [9], spent Shiitake substrate [10], pumpkin seed shell [11] tempurung kelapa [12,13]. Pada penelitian ini arang aktif dibuat dari sabut kelapa, yang selama ini hanya digunakan untuk bahan bakar dan kerajinan.…”

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Arang Aktif Serat Sabut Kelapa Dan Aplikasinya Sebagai Adsorben Ion Kromium(iii) Dari Larutan Air

Manurung

Widihati

Yunilawati

2022

J. Sci. Appl. Tech.

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The coconut husk contains high cellulose, so it can be processed as a basic materials to make activated charcoal. The purpose of the study was to make activated charcoal from coconut husk fiber with hydrochloric acid activator and to determine the effect of changing coconut husk fiber into charcoal, as well as activation of the adsorption power of Cr(III) metal ions from solution. The research started by separating the coconut husk fiber, carbonization at various temperatures. The resulting charcoal was characterized according to SNI 06-3730-1995. The best quality charcoal was activated with HCl, then coconut husk fiber, unactivated and activated charcoals were applied to absorb Cr(III) ions. Optimization of adsorption parameters such as contact time, solution pH, temperature and adsorption isotherm were also studied. The results showed that the optimum carbonization temperature was 600oC, contact time was 5 hours, optimum pH was 6, room temperature. The adsorption capacity of Cr(III) ions were 8.2580 mg/g, 13.5645 mg/g and 16.1452 mg/g for coconut husk fiber, unactivated and activated charcoal, respectively. The increase in adsorption power from coconut husk fiber to charcoal was 64.36% and from charcoal to activated charcoal increased by 19.02%. Coconut husk fiber and unactivated charcoal followed the Langmuir isotherm while activated charcoal followed Freundlich.

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Section: Karakterisasi Dan Aktivasiunclassified

Section: Pengaruh Ph Dan Suhuunclassified

Section: Daya Serap Terhadap Iodin Dan Metilen Biruunclassified

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Arang Aktif Serat Sabut Kelapa Dan Aplikasinya Sebagai Adsorben Ion Kromium(iii) Dari Larutan Air

Manurung

Widihati

Yunilawati

2022

J. Sci. Appl. Tech.

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Study on The Potential Contamination of Heavy Metals: Analysis of Cr and Pb Contents From Power Plants in Indonesia Using the Batch Leaching Method

Hanum,

Salamah,

Rifai Sanuhung

et al. 2024

J. Sains Nat.

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Coal ash, stemming from the combustion process in power plants, emerges as a potential pollution source due to its metal content. Recognized for housing various metals with environmental contamination potential, this study meticulously delves into the metal analysis of chromium (Cr) and lead (Pb) within four distinct samples of fly ash (FA) and bottom ash (BA) sourced from diverse coal-fired power plants across Indonesia. Employing the batch leaching method, the coal ash samples (FABA) underwent a 6-hour immersion in deionized water, replicating environmental scenarios akin to rainwater interaction with coal ash at disposal sites. XRF analysis scrutinized the chemical composition of each sample, while the leaching filtrate underwent analysis via pH meter and AAS to ascertain pH values and the concentrations of Pb and Cr. Results unveiled a substantial pH variation in the leachate, fluctuating from the initial deionized water pH of 7.00 to a range between 6.86 and 9.18. Notably, subsequent leaching indicated undetectable concentrations of Pb in all samples, with most exhibiting low Cr concentrations post-leaching, except for FA-2, FA-4, and BA-4, which displayed modest Cr concentrations. The scarcity or low concentrations of Pb and Cr post-leaching suggest an efficacious process inhibiting heavy metal release. This study offers profound insights into the chemical intricacies of coal ash, underlining its potential environmental ramifications. The absence of detectable heavy metal concentrations post-leaching underscores a minimal risk of environmental pollution, underscoring the imperative to comprehend the chemical reactions intrinsic to the leaching process for optimal waste management strategies.

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PREPARASI ARANG BAMBU DENGAN METODE KONVENSIONAL, AKTIVASI TERMAL DAN KARAKTERISASI SERTA APLIKASINYA SEBAGAI ADSORBEN LOGAM Pb(II) DAN Cr(III)

Cited by 2 publications

References 6 publications

Arang Aktif Serat Sabut Kelapa Dan Aplikasinya Sebagai Adsorben Ion Kromium(iii) Dari Larutan Air

Arang Aktif Serat Sabut Kelapa Dan Aplikasinya Sebagai Adsorben Ion Kromium(iii) Dari Larutan Air

Study on The Potential Contamination of Heavy Metals: Analysis of Cr and Pb Contents From Power Plants in Indonesia Using the Batch Leaching Method

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