The Continuous Anaerobic Treatment of Pulping Wastewaters

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概要

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• The anaerobic treatability of thermomechanical pulping (TMP) effluents and soda pulping liquors was evaluated in this study. Continuous experiments were conducted in laboratory scale UASB reactors inoculated with anaerobic granular sludge at 30±2℃. TMP wastewaters were found highly suitable for anaerobic treatment. The application of high orginic loadings (31 g COD.l^<-1>.d^<-1>) was feasible by the end of the continuous experiment with TMP wastewaters, with 68 and 98%, total COD and biodegradable COD elimination efficiencies, respectively. Unlike TMP effluents, soda pulping wastewaters were highly inhibitory to methanogenic bacteria and they contained importnat fractions of recalcitrant organic matter. Wood resin constituents were shown to be respondible for most of the methanogenic inhibition in these wastewaters. Nonetheless, anaerobic wastewater treatment was feasible for removing the biodegradable substrate in soda pulping wastewaters if the wastewaters were diluted to subtoxic levels or detoxified by pretreatment with the adsorbent Amberlite XAD-2 prior to biological treatment. Low COD removal efficiencies were observed during the continuous experiment (45 to 50%) with soda pulping liquors, due to the high amounts of recalcitran lignin in these wastewaters. The elimination of UV280 absorbance (15 to 20%) indicated partial lemoval of some lignin components by anaerobic treatment. The lignic removed or biotransformed anaerobicaly corresponded to low molecular weight lignin derivatives as confirmed by gel chromatography results.

• 公益社団法人日本生物工学会の論文
• 1990-08-25

著者

• Lettinga Gatze

  Department Of Environmental Technology Wageningen Agricultural University

• KORTEKAAS SJON

  Department of Environmental Technology, Wageningen Agricultural University

• Kortekaas S

  Wangeningen Agricultural Univ. Wangeningen Nld

• Kortekaas Sjon

  Department Of Environmental Technology Wageningen Agricultural University

• SIERRA-ALVAREZ REYES

  Department of Environmental Technology, Wageningen Agricultural University

• HARBRECHT JOLAN

  Department of Environmental Technology, Wageningen Agricultural University

• Lettinga Gatze

  Deparment Of Environmental Technology Wageningen Agricultural University

• Harbrecht Jolan

  Department Of Environmental Technology Wageningen Agricultural University

• Sierra-alvarez Reyes

  Department Of Environmental Technology Wageningen Agricultural University

関連論文

• Anaerobic-Aerobic Treatment of Toxic Pulping Black Liquor with Upfront Effluent Recirculation
• High-Rate Anaerobic Treatment of Wastewater under Psychrophilic Conditions
• Effect of Cobalt on the Anaerobic Degradation of Methanol
• Treatment of Low Strength Soluble Wastewaters in UASB Reactors
• The Continuous Anaerobic Treatment of Pulping Wastewaters
• Thermo-Tolerant Anaerobic Degradation of Volatile Fatty Acids by Digested Organic Fraction of Municipal Solid Waste
• Measurement of Low Molecular Weight Tannins : Indicators of Methanogenic Toxic Tannins

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