生态与农村环境学报 ›› 2007, Vol. 23 ›› Issue (4): 63-66.doi:

• 论文 • 上一篇    下一篇

堆沤处理对稻草厌氧消化产气的影响

方文杰, 刘广青;, 康佳丽, 刘研萍, 李秀金   

  1. 北京化工大学环境工程系
  • 收稿日期:2007-01-25 出版日期:2007-10-25 发布日期:2011-07-06
  • 通讯作者: 李秀金 北京化工大学环境工程系
  • 作者简介:方文杰(1982-),女,浙江诸暨人,硕士生,主要研究方向为固体废物处理与资源化。
  • 基金资助:

    农业部可再生能源专项基金(0302)

Effect of Retting on Biogas Generation of Rice Straws Under Anaerobic Digestion

FANG  Wen-Jie, LIU  Guang-Qing-;, KANG  Jia-Li, LIU  Yan-Ping, LI  Xiu-Jin   

  1. Department of Environmental Engineering,Beijing University of Chemical Technology
  • Received:2007-01-25 Online:2007-10-25 Published:2011-07-06
  • Contact: LI Xiu-Jin Department of Environmental Engineering,Beijing University of Chemical Technology

摘要: 采用厌氧消化后的消化液对稻草进行堆沤预处理,设计正交试验L9(34),考察温度、含水率、混合液悬浮固体(MLSS)及时间对厌氧消化产气量的影响,并对堆沤处理前后的稻草进行了不同有机负荷率下的产气试验。结果表明,堆沤处理后稻草总产气量比未处理提高了3%~49.5%,最优条件组合为温度30℃、含水率900 g.kg-1、时间10 d、MLSS 1 500 mg.L-1。在此最优条件下,处理后稻草消化的单位挥发性固体产气量为804.8 mL.g-1,与未处理稻草相比提高51.2%,产气高峰提前10 d左右。

关键词: 堆沤, 稻草, 正交试验, 厌氧消化, 产气量

Abstract: Effluent from anaerobic digestion was used in this experiment to ret rice straws.An orthogonal experiment program was carried out to determine effects of temperature,moisture,time and MLSS(mixed liquid suspended solid) on biogas generation during anaerobic digestion and compare retted rice straws with un-retted ones in biogas generation under different loadings of organic substances.Results show that the total biogas yield of retted rice straws was about 3%-49.5% higher than the untreated one.The optimal conditions for biogas generation were 30 ℃ in temperature,900 g·kg-1 in moisture,10 days in time and MLSS at 1 500 mg·L-1 in volume.Under such conditions,the biogas yield of retted rice straws reached 804.8 mL·g-1 VS(volatile solid),51.2% higher than that of untreated ones and the yield peaked 10 days earlier.

Key words: retting, rice straw, orthogonal experiment program, anaerobic digestion, biogas production

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