New insights into the enhancement of biochemical degradation potential from waste activated sludge with low organic content by Potassium Monopersulfate treatment.
作者： Baodan Jin , Jintao Niu , Jingwen Dai , Nuonan Li , Ping Zhou
DOI: 10.1016/J.BIORTECH.2018.05.032
关键词:
摘要: Abstract Waste activated sludge with low organic content (WAS-LOC) always led to the failure of anaerobic fermentation. A potentially practical technology based on SO4−, i.e. Potassium Monopersulfate (PMS) was used into WAS-LOC fermentation system and had been presented greatly improve both intracellular extracellular constituents, which improved biological enzyme activity produced a mass short-chain fatty acids (SCFAs). Results showed that maximal SCFAs production 716.72 mg chemical oxygen demand (COD)/L (0.08 mg PMS/mg SS), increased 43.70 times comparing 0.00 mg PMS/mg SS level (16.40 mgCOD/L). The activities enzymes 1.42 for protease, 4.38 α-glucosidase, 2.1 alkaline phosphatase, 1.70 acidic phosphatase 1.37 dehydrogenase respectively natural system, but coenzyme 420 restrained prominently. PMS positively enriched abundance microbial community responsible hydrolysis production.
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