Effects of sulfate concentration on anaerobic treatment of wastewater containing monoethanolamine using an up-flow anaerobic sludge blanket reactor

Autor: Yasuyuki Takemura, Masataka Aoki, Tsuyoshi Danshita, Akinori Iguchi, Shoji Ikeda, Yuma Miyaoka, Haruhiko Sumino, Kazuaki Syutsubo
Rok vydání: 2022
Předmět:
Zdroj: Journal of hazardous materials. 440
ISSN: 1873-3336
Popis: Monoethanolamine (MEA), a toxic organic chemical, is widely used in industries and is found in their wastewater. Anaerobic MEA degradation is an appropriate strategy to reduce energy and cost for treatment. Industry wastewaters also contain sulfate, but information on the effects of sulfate on MEA degradation is limited. Here, an up-flow anaerobic sludge blanket (UASB) for MEA-containing wastewater treatment was operated under psychrophilic conditions (18-20 ºC) to investigate the effects of sulfate on the microbial characteristics of the retained sludge. To acclimatize the sludge, the proportion of MEA in the influent (containing sucrose, acetate, and propionate) was increased from 15% to 100% of total COD (1500 mg L
Databáze: OpenAIRE