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- W2077886315 abstract "Paperboard mill wastewater (PMW) mainly comprises complex compounds such as polysaccharides and lignin that are recalcitrant to microbial and enzymatic action. Surfactants supplementation was found to improve the enzymatic hydrolysis and reduce lignin content during anaerobic digestion process. However, much less attention has been given for the effectiveness of surfactants addition on hydrogen production from PMW under hyperthermophilic conditions. In this study, the mixed bacterial culture was supplemented with surfactants, namely PEG 6000 and Tween 80 (T80), to enhance the biodegradation process and hydrogen yield (HY). The results showed that increasing the concentration of T80 from 0.25 to 1.75% v/v significantly ( p < 0.001) increased HY from 1.7 ± 0.02 to 2.6 ± 0.01 mmol/gCOD initial (where COD is chemical oxygen demand), respectively. However, with further increase in the concentration of T80 up to 2.5%, the HY dropped to 2 ± 0.04 mmol/gCOD initial . This was mainly due to a higher propionate (HPr) production. Similar trends were observed for PEG, where the maximum HY of 2.8 ± 0.02 mmol/gCOD initial was achieved at a concentration of 0.75 mg/L, which deteriorated at higher and lower concentrations of PEG. Fermentative hydrogen of 700 m 3 /day of PMW could support about 16.4% of total primary energy consumption of the factory." @default.
- W2077886315 created "2016-06-24" @default.
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- W2077886315 date "2015-04-02" @default.
- W2077886315 modified "2023-10-16" @default.
- W2077886315 title "Surfactant-supplemented mixed bacterial cultures to produce hydrogen from paperboard mill wastewater" @default.
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- W2077886315 doi "https://doi.org/10.1002/elsc.201400099" @default.
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