Application of Non-Linear Kinetic and Isotherm Model for Investigation of Cod Removal from Tapioca Liquid Waste Onto Modified Lampung Natural Zeolite
Autor: | Amna Citra Farhan, Darmansyah, Ratna Puspita Sari, Didik Supriyadi |
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Rok vydání: | 2021 |
Předmět: |
Technology
Langmuir Materials science Physics and Astronomy (miscellaneous) Science General Mathematics Chemical oxygen demand Thermodynamics Regression analysis General Chemistry Kinetic energy Nonlinear system Adsorption Freundlich equation Zeolite Pharmacology Toxicology and Pharmaceutics (miscellaneous) |
Zdroj: | Science and Technology Indonesia, Vol 6, Iss 4, Pp 218-227 (2021) |
ISSN: | 2580-4391 2580-4405 |
Popis: | The experimental data analysis of tapioca liquid waste onto modified Lampung natural zeolite using non-linear regression models is limited. The adsorption data were analyzed with nine kinetic models (the pseudo-first-order, the pseudo-second-order, the intraparticle diusion, fractional power, Bangham, Elovich, mixed-1.2-order, modification of pseudo-second-order, and Avrami) and eight isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Sips, Redlich-Peterson, Toth, Liu, and Khan). The percentage of adsorption was decreased from 61.29% to 13.66% with increasing Chemical Oxygen Demand (COD) concentration 310 mg/L to 9450 mg/L. The result showed that the power model (R2 : 0.98, X2 : 0.137), Avrami (R2 : 0.98, X2 : 0.141), Bangham (R2 : 0.98, X2 : 0.145) and modified pseudo-second-order (R2 : 0.98, X2 : 0.147) can be recommended as the best fied to experimental kinetic data. The Khan model (R2 : 0.99961, X2 : 0.03729) and Langmuir (R2 : 0.99478, X2 : 0.24902) was the most reliable for describing the isotherm model. Thus, the analysis of experimental adsorption data using a non-linear regression model is highly recommended. |
Databáze: | OpenAIRE |
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