Studi Kinetika Adsorpsi Isoterm Persamaan Langmuir dan Freundlich pada Abu Gosok sebagai Adsorben

Wijayanti, Imas Eva; Kurniawati, Eka Anisa; Solfarina, Solfarina

doi:10.30870/educhemia.v4i2.6119

Cited by 16 publications

(11 citation statements)

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“…The reduction of Cu content is determined by Equation 1as follows: The relationship between the amount of adsorbed adsorbate and the concentration of adsorbate in solution at equilibrium and constant temperature can be expressed by the adsorption isotherm. The Langmuir isotherm is expressed in Equation 2 as follows [21]:…”

Section: Methodsmentioning

confidence: 99%

Determination of rice husk activated Carbon capacity in adsorption of Cu Metal from Sasirangan liquid waste based on isotherm model

Syauqiah

Nurandini

Prihatini

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The process of manufacturing Sasirangan - a traditional fabric of South Kalimantan - has an impact that affects environmental pollution, namely the dyeing process of the fabric. The synthetic dyes used contain heavy metals and one of those toxic metals is copper (Cu). This study aims to determine the adsorption capacity of rice husk activated carbon adsorbent by adjusting the adsorption pattern based on isotherm models as the treatment to sasirangan liquid waste. The method consists of three stages: preparation of adsorbent by carbonization process, chemical and physical activation, then continued by adsorption process of Cu metal with carbon from rice husks with variations of adsorbent dose (2, 4, and 6 grams). This treatment was conducted by batch process. In this reseach, the adsorption capacity of rice husk adsorbent towards heavy metal Cu in sasirangan liquid waste was determined from the equilibrium state with the Langmuir isotherm equation and Freundlich isotherm equation. Based on isothermal studies of adsorption data, the correlation coefficient values obtained from the isotherm model approaches are: for dose of 2 grams adsorbent, Langmuir R2 = 0.9991 and Freundlich R2 = 0.9981; for dose of 4 grams adsorbent, Langmuir R2 = 0.9992 and Freundlich R2 = 0.9989; for dose of 6 grams adsorbent, Langmuir R2 = 0.9990 and Freundlich R2 = 0.9986. The results of investigation indicate that adsorption data correlated well with Langmuir isotherm model.

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Section: Methodsmentioning

confidence: 99%

Determination of rice husk activated Carbon capacity in adsorption of Cu Metal from Sasirangan liquid waste based on isotherm model

Syauqiah

Nurandini

Prihatini

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Arang kulit kopi yang telah diayak kemudian diaktivasi dengan larutan NaOH 1 M dengan perbandingan 1:3 yaitu 100 g karbon : 300 mL larutan (2017) dan Wijayanti & Kurniawati (2019).…”

Section: ) Aktivasiunclassified

Model Adsorpsi Isoterm Arang Aktif Kulit Kopi Pada Penurunan Warna Air Limbah Pengolahan Kopi

Novita

Wahyuningsih

Kamil

et al. 2021

agrin

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Pengolahan kopi menghasilkan air limbah kopi dan limbah padat beruapa kulit kopi. Air limbah pengolahan kopi mengandung flavonoid yang berpengaruh terhadap warna coklat gelap pada air limbah pengolahan kopi. Apabila air limbah pengolahan kopi dibuang langsung ke badan air tanpa adanya pengolahan, akan mengganggu kehidupan air. Kulit kopi mengandung selulosa dan senyawa organik sehingga berpotensi untuk dijadikan sebagai arang aktif. Penelitian ini bertujuan untuk menganalisis karakteristik dan model adsorpsi isoterm arang aktif kulit kopi terhadap penurunan warna pada air limbah pengolahan kopi. Tahapan penelitian dibagi menjadi dua yaitu pembuatan arang aktif dan penentuan model adsorpsi isoterm. Arang aktif kulit kopi yang digunakan diaktivasi dengan senyawa NaOH 1 M dan dikarakterisasi berdasarkan SNI-06-3730-1995. Selanjutnya, proses adsorpsi arang aktif dianalisis dengan metode adsorpsi isoterm Langmuir dan Freundlich. Arang aktif kulit kopi yang dihasilkan telah memenuhi SNI-0603730-1995 dengan kadar air sebesar 3,43%; kadar abu 2,3%; dan daya serap I2 15231,6 mg/g. Adapun adsorpsi pada penelitian ini mengikuti model isoterm Langmuir. Adsorpsi air limbah pengolahan kopi dapat menggunakan arang aktif kulit kopi dengan kapasitas optimum 39,06 mg/g.Kata kunci: arang aktif, adsorben alami, kesetimbangan, model Langmuir, model Freundlich

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“…Proses adsorpsi dilakukan untuk menyerap adsorbat atau kation kation yang terlarut dalam air limbah. Proses adsorpsi terjadi karena adanya luas permukaan, semakin luas permukaan adsorben yang disediakan maka semakin banyak molekul atau ion yang dapat diserap [5].…”

Section: Pendahuluanunclassified

Pengolahan Limbah Cair Batik Banten secara Koagulasi Menggunakan Tawas dan Adsorpsi dengan Memanfaatkan Zeolit Alam Bayah

Fitriyah¹,

Akbari²,

Alfandiana³

2021

JSE

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The batik industry produces liquid waste from the coloring, washing and rinsing processes. This study was aimed to analyze the quality of Banten batik effluent before and after treatment. The processing is carried out using an experimental method with a batch system by coagulation using alum and adsorption using Bayah's natural zeolite by performing 3 variations of coagulant mass and adsorbent for the dye test parameters, TDS and TSS. The results of the test before treatment were the results for dyes of 344 TCU, TDS 620 mg/L, and TSS 218.5 mg/L. Based on the coagulation treatment using alum, the most efficient coagulant results were obtained to reduce the levels of dyestuffs and TDS, namely by using alum coagulant as much as 1500 mg/L which resulted in 96.6 TCU and 330.0 mg/L respectively, then to reduce TSS levels obtained an efficient coagulant that is 500 mg/L with a yield of 10 mg/L. The adsorption treatment using Bayah natural zeolite can reduce the levels of TDS and TSS with the most efficient results using an adsorbent of 150 g/L obtained for TDS 189.3 mg/L and TSS 13.3 mg/L. So based on the results of processing using coagulation and adsorption methods, it is hoped that the batik industry can apply it in processing the liquid waste produced.

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Studi Kinetika Adsorpsi Isoterm Persamaan Langmuir dan Freundlich pada Abu Gosok sebagai Adsorben

Cited by 16 publications

References 0 publications

Determination of rice husk activated Carbon capacity in adsorption of Cu Metal from Sasirangan liquid waste based on isotherm model

Determination of rice husk activated Carbon capacity in adsorption of Cu Metal from Sasirangan liquid waste based on isotherm model

Model Adsorpsi Isoterm Arang Aktif Kulit Kopi Pada Penurunan Warna Air Limbah Pengolahan Kopi

Pengolahan Limbah Cair Batik Banten secara Koagulasi Menggunakan Tawas dan Adsorpsi dengan Memanfaatkan Zeolit Alam Bayah

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