Optimization of biochar yield using hydrothermal carbonization using response surface methodology for the adsorption of methylene blue / Aswwinyy Marimuthu

Aswwinyy, Marimuthu (2022) Optimization of biochar yield using hydrothermal carbonization using response surface methodology for the adsorption of methylene blue / Aswwinyy Marimuthu. Masters thesis, Universiti Malaya.

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      Abstract

      The objective of this research study is to produce and optimise the biochar yield using DOE. In order to achieve the objective of this study, the treated separator sludge that had undergone submerged fermentation was added into a hydrothermal autoclave reactor to produce biochar with varying temperatures (150-220oC) and holding times (0.5-2.0 hours) and the yield was calculated and tabulated. The biochar was then used to study the reduction efficiency of methylene blue solution with the concentration of 50mg/L. Based on the study, it was found that the optimised condition for this research work was at temperature 150oC and holding time of 0.5 hours, where the yield produced was 74%. At these optimised conditions, adsorption studies with different concentration of methylene blue solution were conducted, where the reduction was above 90% and remained constant at 150mg/L, thereafter. As for the statistical analysis, the reaction temperature and the holding time shows significant reliability to the biochar yield produced as the p-values obtained was less than 0.05.

      Item Type: Thesis (Masters)
      Additional Information: Research Report (M.A.) - Faculty of Engineering, Universiti Malaya, 2022.
      Uncontrolled Keywords: Biochar; hydrothermal; Methylene blue solution
      Subjects: T Technology > TA Engineering (General). Civil engineering (General)
      T Technology > TD Environmental technology. Sanitary engineering
      Divisions: Faculty of Engineering
      Depositing User: Mrs Rafidah Abu Othman
      Date Deposited: 29 Mar 2023 02:03
      Last Modified: 29 Mar 2023 02:03
      URI: http://studentsrepo.um.edu.my/id/eprint/14321

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