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Methane Production Using Photocatalytic Degradation Byproducts From Black Liquor, Christina Joy Jung
Methane Production Using Photocatalytic Degradation Byproducts From Black Liquor, Christina Joy Jung
Electronic Theses and Dissertations
The focus of this thesis was on the production of methane from black liquor (BL) using a two-step degradation process; that being, photocatalytic pretreatment of BL followed by anaerobic digestion. Photocatalytic degradation efficiency was optimised based on the following factors: lignin type (BL, black liquor with sulfide removal (BL-S), alkaline lignin (AL), and sodium lignosulfonate (LS)), lignin concentration (500 and 1000 mg COD/L), catalyst type (titanium dioxide (TiO2) and reduced graphene oxide titanium dioxide nanotubes (RGO TNT)), and initial concentration of strong oxidizing agent (0, 0.001, 0.005, and 0.01 mol/L of H2O2). The process efficiency was evaluated based on biodegradation …