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All Journal Eksergi: Chemical Engineering Journal JURNAL KONVERSI Prosiding SNAST
Syarifah Aini
Universitas Widya Dharma Klaten
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Penerapan Lima Model Kesetimbangan Adsorpsi Isoterm pada Adsorpsi Ion Logam Chrom VI oleh Zeolit Syarifah Aini; Supratikno Supratikno
Eksergi Vol 15, No 2 (2018): Vol. 15 No.2 (2018)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v15i2.2385

Abstract

Chrom VI metal ion include heavy metal waste which needs further processing using adsorbent. Zeolite is a suitable adsorbent for absorbing strong affinity chrom VI metal ions because zeolite is a natural mineral that has an active surface area per unit of mass and power. The purpose of this study was to determine a suitable model for the equilibrium adsorption of chrom VI metal ion by zeolite along with their parameter values, and to determine the optimal zeolite absorption against chrom VI metal ion. This study uses the method of applying the isotherm adsorption equilibrium model which includes 5 equations namely Linear Adsorption (Henry's Law), Freundlich Isotherm Adsorption, Langmuir Isoterm Adsorption, Brunauer-Emmett-Teller Isotherm (BET), Sigmoidal Chapman Equation. From these five models, data fitting is done to find models that are closer to the data. Data matching is done by minimizing the Matlab program. The results showed that the suitable model is the BET Isotherm Adsorption model with parameter values, namely the BET isotherm adsorption constant value (CBET) of 0.5183 l/mg, the maximum capacity of the adsorbent at equilibrium theoretical (qs) is 149.9977 mg/g and the saturated adsorbate concentration in the monolayer (Cs) is 184.1691 mg l.
Optimization of Coagulant Dosage for Suko River Water Treatment syarifah aini; H.D. Wahyudi; Kukuh Priyono
Eksergi Vol 18, No 1 (2021)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v0i0.4497

Abstract

Sungai Suko, Drono village, Ngawen sub-district, Klaten district, is located near residential area and tofu factory, the possibility of water contamination is quite high, which is caused by household waste. This river water can be processed into clean water by a coagulation process of the Jar Test method using coagulant alum, PAC and chlorine. The purpose of this study was to determine the optimum dose of coagulant in processing Suko river water into clean water using the Jar test method and knowing which coagulant is most suitable for processing the Suko river water into clean water. This research method is to use the Jar Test experiment to determine the optimum coagulant dose in processing Suko river water into clean water. The quality of the water samples before the experiment were tested which included the physical parameters, i.e. temperature, color, odor, and turbidity, also the chemical parameters, i.e. Fe, hardness, CO2, alkalinity, pH, COD, BOD, then the experimental results will determine the level of water clarity. The results showed that the optimum alum content in the experiment was 120 ppm by adding 6 mL of alum to 500 mL of water, the optimum level of PAC in the experiment is 200 ppm by adding 10 mL of PAC to 500 mL of water, and the optimum chlorine level in the experiment is 160 ppm by adding 8 mL of chlorine to 500 mL of water.
PENGARUH PENAMBAHAN Cr(OH)3 DAN Fe(OH)2 DALAM PEWARNA GLASIR TERHADAP MODULUS PATAH DAN DAYA SERAP BAHAN Syarifah Aini; Noni Retno Afrianti
JURNAL KONVERSI Vol 7, No 1 (2018)
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/konversi.7.1.8

Abstract

Heavy metal waste is B3 waste that has hazardous and environmentally damaging effect, such as electroplating industry waste which produces Cr(OH)3 and Fe(OH)2 wastes. The purpose of this research is to use the waste as a mixture of glaze and to know how much the effect of Cr(OH)3 and Fe(OH)2 addition in glaze dye to the fracture modulus and the absorption capacity of the material. The materials were mashed and sieved with a size of 200 mesh, then the three materials were mixed with homogeneous which have 15% leucite, 15% lime, 70% borax composition, then suspended with water until homogeneous. Afterward, added Fe(OH)2 (comparison mix of dye as much as 3%-7% weight of glaze). The experiment was repeated by adding Cr(OH)3, then a mixture of Fe(OH)2 and Cr(OH)3. The suspension result is poured onto the test tile and be spread evenly, then inserted into the muffle, heated to 900oC for 2 hours and cooled. After that, analyzed the fracture modulus and absorption capacity of the test tile. The result of this study; first, the addition of 6% Fe(OH)2 optimize the brown color. Second, the addition of 7% Cr(OH)3 optimize the green color. Last, the addition of 3% mixture of Fe(OH)2 and Cr(OH)3 optimize yellowish green color. From the research data it can be concluded that the more metal oxides are added, the greater the fracture modulus, and the smaller the absorption.
KESETIMBANGAN ADSORPSI ION LOGAM CHROM VI OLEH ZEOLIT PADA BERBAGAI UKURAN PARTIKEL Syarifah Aini; Supratikno _
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

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

Abstract

The waste of heavy metal such as chrom metal ion needs further process by certain technics. One of them is adsorbent one by applying the equilbrium principle of adsorption. Zeolite is the suitable adsorbent to use to absorb the metal ion of chrom. The purpose of the study is to determine the suitable model for equilbrium adsorption of metal ion of chrom VI by zeolite together with its parameter values and to know the maximum power absorbtion of zeolite toward metal ion of chrom VI. The production of the solution of metal ion of chrom VI in various concentration such as concentration of 10 ppm, 30 ppm, 50 ppm, and 70 ppm. Each of the solution is added by 40 gram of zeolit and stirred for 30 minutes then filtered and the filtrat is analyzed by spectrophotometer. The experiment is conducted by the various particle size of zeolite such as 50 mesh, 100 mesh, and 170 mesh. The study uses the method of application model of isoterm adsorption equilbrium that covers 5 equations that is Linier Adsorption (Henry’s Law), Isotherm Adsorption of Freundlich, Isotherm Adsorption of Langmuir, Isotherm of Brunauer-Emmett-Teller (BET), the Equation of Sigmoidal Chapman. From these five models then data fitting is conducted to find the model that closer to the data. Data matching is conducted by minimizing that is run by Matlab program. The result of study shows that the suitable and closer model is the model of Isotherm adsorbtion of Freundlich in its equilbrium constant 0,0018 l/g. The maximum concentration of metal ion of chrom VI absorbed by zeolite is 5,6402 mg/g to the 170 mesh of particle size. The study can be concluded that the smaller size of particle of adsorbent the bigger material concentration absorbed.
Co-Authors H.D. Wahyudi Kukuh Priyono Noni Retno Afrianti Supratikno Supratikno Supratikno _