Application of Chitosan as Cyanide Adsorbance on Gold Ore Processing

Sukma, Dian Harjuna; Riani, Etty; Pakpahan, Edward Nixon

doi:10.17844/jphpi.v21i3.24718

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…Chitosan was isolated from shrimp shells using the methods described by Agustina et al [22] and Sukma et al [23]. Shrimp waste was washed and sun-dried afterward.…”

Section: Isolation Of Chitosan From Shrimp Shellsmentioning

confidence: 99%

Fabrication of Polystyrene Sulfonate-Chitosan (PSS-Chitosan) Membrane as Dodecyl Benzene Sulfonate (DBS) Adsorbent in Laundry Wastewater

et al. 2023

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The combination of polystyrene and chitosan can form polyelectrolyte (PE) membranes. Polystyrene sulfonate-chitosan (PSS-chitosan) adsorbent membrane can adsorb dodecyl benzene sulfonate (DBS) in laundry wastewater. This study aimed to synthesize, identify characteristics, and formulate adsorption effectiveness by PSS-chitosan membranes. The research methods included converting polystyrene into PSS, isolating chitosan, optimizing geometry, making PSS-chitosan membranes, studying adsorption, and applying membranes to laundry wastewater. The resulting membrane was characterized using FTIR and SEM. The results of the infrared spectra showed vibrations of –OH and –NH2 groups at 3418 cm–1, while the SEM image showed a homogeneous membrane surface. The quality of chitosan isolation from shrimp shells was indicated by the degree of deacetylation of 61.3%. The results of the geometry optimization showed the change in the structure’s total energy after adsorption. The PSS-chitosan membrane is resistant to acids but decomposes under alkaline conditions. Optimum adsorption of PSS-chitosan membrane on DBS occurred at pH 8 for 100 minutes. The adsorption kinetics of the PSS-chitosan membrane follows the first pseudo-order equation. PSS-chitosan membrane adsorption isotherm follows the Langmuir isotherm model with an adsorption capacity and efficiency of 3.97 mg.g–1 and 76.6%, respectively, at 0.6 ppm. At the application stage, the PSS-chitosan membrane could adsorb DBS in laundry wastewater by (62.4 ± 7.2) %.

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“…Chitosan was isolated from shrimp shells using the methods described by Agustina et al [22] and Sukma et al [23]. Shrimp waste was washed and sun-dried afterward.…”

Section: Isolation Of Chitosan From Shrimp Shellsmentioning

confidence: 99%

Fabrication of Polystyrene Sulfonate-Chitosan (PSS-Chitosan) Membrane as Dodecyl Benzene Sulfonate (DBS) Adsorbent in Laundry Wastewater

et al. 2023

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“…Larutan kitosan dibuat dengan melarutkan kitosan (0,5; 1; dan 1,5) gram ke dalam beker glass yang berisi 20 ml asam asetat 2% dan 80 ml akuades (Iriana et al, 2018;Sukma et al, 2018). Larutan KMK dibuat dengan melarutkan karboksimetil kitosan (0,5; 1; dan 1,5) gram ke dalam beker glass yang berisi 100 ml akuades.…”

Section: Materi Dan Metodeunclassified

“…Seluruh jaringan lunak yang telah dipisahkan dari cangkangnya ditimbang sebanyak 10gram untuk masing-masing perlakuan. Sampel jaringan lunak (daging) kerang hijau) selanjutnya direndam dalam larutan kitosan dan KMK dengan konsentrasi 0% (kontrol), 0,5%, 1%, dan 1,5% selama 120 menit (Sukma et al, 2018;Firdaus dan Aunurohim, 2019). Selanjutnya sampel hasil perendaman dianalisis kandungan logam Fe dengan metoda AAS.…”

Section: Materi Dan Metodeunclassified

Kitosan sebagai Bioadsorben Logam Besi (Fe) pada Jaringan Lunak Kerang Hijau (Perna viridis)

Pramastuti,

Supriyantini,

Pramesti

et al. 2023

Bul. Oseano. Mar.

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Logam besi (Fe) merupakan logam berat essensial yang dibutuhkan oleh makhluk hidup termasuk manusia dalam jumlah sedikit. Jika jumlahnya melebihi batas ambang dapat menimbulkan efek racun karena bersifat karsinogenik. Salah satu upaya mengurangi kadar logam Fe pada daging kerang tersebut dapat dilakukan dengan memanfaatkan kitosan atau turunan kitosan yaitu karboksimetil kitosan (KMK) sebagai adsorben. Penelitian ini bertujuan mengetahui pengaruh variasi konsentrasi KMK dan kitosan terhadap kapasitas dan daya adsorpsi, serta konsentrasi terbaik dalam menurunkan kandungan logam berat Fe pada jaringan lunak kerang hijau. Metode penelitian secara eksperimental laboratoris. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 2 faktor. Faktor pertama yaitu sumber kitosan yang digunakan yaitu kitosan dan karboksimetil kitosan (KMK) dan faktor kedua yaitu variasi konsentrasi yaitu kontrol (0%); 0,5%; 1%; 1,5% dan masing-masing perlakuan dengan 3 ulangan. Konsentrasi logam berat Fe awal pada kerang hijau sebesar 13,17 mg/kg. Hasil penelitian menunjukkan adanya pengaruh variasi konsentrasi kitosan dan KMK terhadap kapasitas dan daya adsorpsi logam berat Fe pada jaringan lunak kerang hijau. Konsentrasi terbaik pada kitosan 1,5% dapat menurunkan logam berat Fe menjadi 2,43 mg/kg dengan kapasitas adsorpsi sebesar 0,72 mg/g dan daya serap 81,56%, sedangkan KMK 1,5% dapat menurunkan logam berat Fe menjadi 3,68 mg/kg dengan kapasitas adsorpsi 0,63 mg/g dan daya serap sebesar 72,04%. Fe is an essential heavy metal needed by humans in small amounts, if the amount exceeds the threshold, it can cause toxic effects because it is carcinogenic. To reduce the metal content of Fe in mussel meat, it can be done by utilizing chitosan or chitosan derivatives, namely carboxymethyl chitosan (KMK) as an adsorbent. This study aims to determine the effect of variations in the concentration of KMK and chitosan on the adsorption capacity and power as well as the best concentration in reducing the heavy metal content of Fe in the soft tissue of green mussels. The research method is experimental laboratory. The research design used a completely randomized design (CRD) with 2 factors. The first factor is the source of chitosan used, namely chitosan and carboxymethyl chitosan (KMK) and the second factor is the variation in concentration used, namely control (0%), 0.5%, 1%, and 1.5% and each treatment 3 repetition. The initial heavy metal concentration of Fe in green mussels was 13.17 mg/kg. The results showed that there was an effect of variations in the concentration of chitosan and KMK on the capacity and adsorption ability of heavy metal Fe in green mussel meat. The best concentration of 1.5% chitosan can reduce heavy metal Fe to 2,43 mg/kg with adsorption capacity of 0.72 mg/g and absorption ability of 81.56%. Meanwhile, KMK 1.5% can reduce heavy metal Fe to 3.68 mg/kg with adsorption capacity of 0.63 mg/g and absorption ability of 72.04%.

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Application of Chitosan as Cyanide Adsorbance on Gold Ore Processing

Cited by 2 publications

References 2 publications

Fabrication of Polystyrene Sulfonate-Chitosan (PSS-Chitosan) Membrane as Dodecyl Benzene Sulfonate (DBS) Adsorbent in Laundry Wastewater

Fabrication of Polystyrene Sulfonate-Chitosan (PSS-Chitosan) Membrane as Dodecyl Benzene Sulfonate (DBS) Adsorbent in Laundry Wastewater

Kitosan sebagai Bioadsorben Logam Besi (Fe) pada Jaringan Lunak Kerang Hijau (Perna viridis)

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