Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/29215
ชื่อเรื่อง: High biogas evolution of distillery wastewater under potassium toxicity in a three-stage upflow anaerobic sludge blanket
ผู้แต่ง: Srisuwanno W.
Pornmai K.
Seneesrisakul K.
Jiraprasertwong A.
Leethochawalit M.
Rangsunvijit P.
Chavadej S.
Keywords: Distillery wastewater
Granular sludge
Methane production
Potassium toxicity
Three-stage upflow anaerobic sludge blanket (UASB) system
วันที่เผยแพร่: 2023
สำนักพิมพ์: Elsevier Ltd
บทคัดย่อ: This investigation aimed to enhance the methanogenic activity of distillery wastewater containing high potassium (K) content in a mesophilic three-stage upflow anaerobic sludge blanket (UASB). The three-stage UASB could not function at a chemical oxygen demand (COD) loading rate greater than 3 kg/m3d due to the K toxicity, causing system failure. The K concentration in the distillery wastewater was 9000–10,000 mg/L, close to the severe inhibitory range for anaerobes (> 12,000 mg/L). Hence, the wastewater was diluted to reach moderate K toxicity. Surprisingly, the three-stage UASB could function effectively, providing high optimum and maximum COD loading rates (20 and 40 kg/m3d, respectively). This was because the three-stage UASB was regulated under a slow stepwise increase in the COD loading rate to achieve fully adapted anaerobe communities for each COD loading rate. This then led to the high ability to withstand the moderate inhibition of K via the successive development of sludge granules. © 2023
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162831094&doi=10.1016%2fj.jece.2023.110205&partnerID=40&md5=5b5adc52cc9105620b7f7f0eb5212cf3
https://ir.swu.ac.th/jspui/handle/123456789/29215
Appears in Collections:Scopus 2023

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