Kinetic modeling of peroxydisulfate pre-treatment of algae slurry (Pasir Gudang, Malaysia) for increasing methane generation from anaerobic digestion : Fertilizer recovery
This study looked into the possibility of using peroxydisulfate pretreatment to enhance biogas production from anaerobic fermentation of algal slurry. The results demonstrate that a peroxydisulfate added system with a dose of 0.02 g peroxydisulfate/g algal sludge TSS produces the most accumulative m...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Asian Publication Corporation
2022
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/37422/ http://umpir.ump.edu.my/id/eprint/37422/1/Kinetic%20modeling%20of%20peroxydisulfate%20pre-treatment%20of%20algae%20slurry%20%28Pasir%20Gudang%2C%20Malaysia%29%20for%20increasing%20methane%20generation.pdf |
| Summary: | This study looked into the possibility of using peroxydisulfate pretreatment to enhance biogas production from anaerobic fermentation of algal slurry. The results demonstrate that a peroxydisulfate added system with a dose of 0.02 g peroxydisulfate/g algal sludge TSS produces the most accumulative methane after 61 days of fermentation. At 0.02, 0.03, 0.06, 0.2, 0.3, 0.6, and 1.2 g peroxydisulfate/g algal sludge TSS cumulative methane generation was 1.16, 1.09, 1.15, 1.14, 1.09, 0.77, and 0.16 times higher than control. After 120 minutes of pre-treatment, the SCOD in the system continued to rise when the peroxydisulfate dosage was enhanced. To simulate the methane yield, a one-substrate model might be utilized. After dosing with peroxydisulfate, the hydrolysis rate reduced, and the maximum resultant and anticipated cumulative methane output was achieved with 0.02 g peroxydisulfate/g algal sludge TSS. After digestion, microcystin-LR in algae slurry was mostly eliminated. Heavy metals could be released from algae cells into the effluent as a result of the greater peroxydisulfate dosage. From the fermented effluent, sludge recapture was 0.09 m3 sludge/m3. The supplementation of peroxydisulfate to algae slurry may boost cumulative methane generation while also lowering microcystin-LR levels. |
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