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Methane and hydrogen production from cotton waste by dark fermentation under anaerobic and micro-aerobic conditions

机译：在厌氧和微氧体条件下深入发酵的甲烷和氢气产生

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摘要

The dark fermentation (DF) of organic textile (e.g. cotton) wastes is discussed in this paper. The influence of micro-aeration on hydrogen and methane production is studied. Fermentation was carried out under the following conditions: load 5 g VSS/L (Volatile Suspended Solids), the pH was varied in the range from 6.23 to 7.8; oxygen was added in small quantities. The oxygen flow rates (OFRs) were varied between 1 and 4.6 mL/h. The highest yields of methane (0.78 L/g VSS) were obtained under anaerobic conditions and neutral pH (7.54), while the production of hydrogen (1.1 mL/g VSS) peaked under an oxygen flow rate of 4.6 mL/h and a pH value of 6.4. Hydrogen and methane yield and the peak days of their production from various substrates (such as cotton waste, sour cabbage, wheat straw, and potato wastes) were compared and discussed. Cotton waste is a potential source of methane, but is substantially less efficient than potato waste.
机译：本文讨论了有机纺织品（例如棉花）废物的黑暗发酵（DF）。研究了微通气对氢气和甲烷产生的影响。在下列条件下进行发酵：负载5g Vss / L（挥发悬浮固体），pH值在6.23至7.8的范围内变化;氧气以少量加入。氧气流量（OFR）在1至4.6ml / h之间变化。在厌氧条件和中性pH（7.54）下获得最高产率（0.78L / g VSS），而氢气（1.1ml / g Vss）的产生在4.6ml / h的氧流速和pH下价值6.4。比较和讨论氢气和甲烷产率和它们从各种基材的生产高峰天（如棉垃圾，酸白菜，小麦秸秆和马铃薯废物）。棉垃圾是甲烷的潜在来源，但比马铃薯废物的效率大得多。

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  • 来源
    《Biomass & bioenergy》 |2020年第7期|105576.1-105576.9|共9页
  • 作者

    Gawel Solowski; Izabela Konkol; Adam Cenian;

  • 作者单位

    Institute of Fluid Flow Machinery Polish Academy of Sciences Physical Aspects of Eco-Energy Department Fiszera 14 Street 80-231 Gdansk Poland;

    Institute of Fluid Flow Machinery Polish Academy of Sciences Physical Aspects of Eco-Energy Department Fiszera 14 Street 80-231 Gdansk Poland;

    Institute of Fluid Flow Machinery Polish Academy of Sciences Physical Aspects of Eco-Energy Department Fiszera 14 Street 80-231 Gdansk Poland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Dark fermentation; Anaerobic and microaerobic conditions; Cotton waste; Hydrogen; Methane;

    机译：黑暗发酵;厌氧和微生物条件;棉花垃圾;氢;甲烷;

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