Hydrolase Production via Food Waste Fermentation and Its Application to Enhance Anaerobic Digestion of Sewage Sludge
نویسندگان
چکیده
In the present study, a novel strategy for effective production of hydrolase via fermentation food waste was developed to improve methane from anaerobic digestion activated sludge (WAS). Via pre-fermentation waste, could be efficiently enriched and then directly used enhance hydrolysis with no need extraction purification enzymes. The results this study indicate that activities predominant hydrolase, mainly including protease amylase in pre-fermented reach 4861.10 U/g 3909.14 mg/(mL·min), respectively. elevated hydrolases evidently enhanced by more than 50% addition 15 g fermented per 200 sludge. released organic matter presented much better biodegradability, which BOD5/COD (B/C) increased 0.33 raw WAS 0.41 pretreated Moreover, substantially improved 2140 mL 7187 adding 30 into sludge, about 24.3% contributed hydrolase. preliminary economic assessments net profit 7.99 USD/m3 is likely harvested applying strategy. Furthermore, provide another innovative route further optimize conventional co-digestion process WAS.
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ژورنال
عنوان ژورنال: Fermentation
سال: 2023
ISSN: ['2311-5637']
DOI: https://doi.org/10.3390/fermentation9060526