ArticleEnvironmental science and pollution research international2020
Effect of initial pH on the sludge fermentation performance enhanced by aged refuse at low temperature of 10 °C.
Article in Environmental science and pollution research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Understanding the mechanism of polybrominated diphenyl ethers reducing the anaerobic co-digestion efficiency of excess sludge and kitchen waste.Environmental science and pollution research international · 2022Article
- Improvement of anaerobic co-digestion of plant waste and excess sludge using calcium peroxide.Environmental science and pollution research international · 2021Article
- Mechanisms of emerging pollutant Dechlorane Plus on the production of short-chain fatty acids from sludge anaerobic fermentation.Environmental science and pollution research international · 2021Article
- Nitrification characteristics of long-term idle aerobic activated sludge during domestication.Environmental science and pollution research international · 2021Article
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8 authors.
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Abstract
The efficiency of anaerobic fermentation of waste activated sludge (WAS) under low-temperature condition is usually low. This work reported a new strategy to enhance the low-temperature fermentation of WAS by using aged refuse (AR), and explored the effect of initial pH 4 till pH 12 on the production of short-chain fatty acid (SCFA) from AR-enhanced sludge fermentation. The results showed that AR improved WAS fermentation under low-temperature condition (10 °C), and the maximum accumulation of SCFA was 75.6 ± 3.5 mg/g, which was significantly higher than that of the blank (without AR). In addition, when the initial pH was 7, the maximum yield of methane was 102.2 ± 4.8 mL/g, whereas when the initial pH was 11, the maximum yield of SCFA was 85.6 ± 2.8 mg/g. Weak acid or alkali pH benefited hydrolysis and acidification of WAS, but inhibited methanogenesis. The release of NH
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