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厌氧发酵液回流降解含重金属水稻秸秆

徐文轩 郭朝晖 肖细元 彭驰 辛立庆 陶鸣鸣 韩亮亮

徐文轩, 郭朝晖, 肖细元, 彭驰, 辛立庆, 陶鸣鸣, 韩亮亮. 厌氧发酵液回流降解含重金属水稻秸秆[J]. 环境工程, 2021, 39(1): 123-129. doi: 10.13205/j.hjgc.202101019
引用本文: 徐文轩, 郭朝晖, 肖细元, 彭驰, 辛立庆, 陶鸣鸣, 韩亮亮. 厌氧发酵液回流降解含重金属水稻秸秆[J]. 环境工程, 2021, 39(1): 123-129. doi: 10.13205/j.hjgc.202101019
XU Wen-xuan, GUO Zhao-hui, XIAO Xi-yuan, PENG Chi, XIN Li-qing, TAO Ming-ming, HAN Liang-liang. ANAEROBIC FERMENTATION SLURRY RECYCLED FOR DEGRADATION OF HEAVY METAL-CONTAINING RICE STRAW[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 123-129. doi: 10.13205/j.hjgc.202101019
Citation: XU Wen-xuan, GUO Zhao-hui, XIAO Xi-yuan, PENG Chi, XIN Li-qing, TAO Ming-ming, HAN Liang-liang. ANAEROBIC FERMENTATION SLURRY RECYCLED FOR DEGRADATION OF HEAVY METAL-CONTAINING RICE STRAW[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(1): 123-129. doi: 10.13205/j.hjgc.202101019

厌氧发酵液回流降解含重金属水稻秸秆

doi: 10.13205/j.hjgc.202101019
基金项目: 

国家自然科学基金项目(21577176)。

详细信息
    作者简介:

    徐文轩(1995-),男,硕士研究生,主要研究方向为固体废物无害化与资源化。yhyxwx@csu.edu.cn

    通讯作者:

    郭朝晖(1971-),男,博士,教授,主要研究方向为土壤重金属污染控制与修复、固体废物无害化与资源化。zhguo@csu.edu.cn

ANAEROBIC FERMENTATION SLURRY RECYCLED FOR DEGRADATION OF HEAVY METAL-CONTAINING RICE STRAW

  • 摘要: 针对含重金属水稻秸秆厌氧发酵过程产生的含重金属发酵液的处置问题,将其作为接种物对水稻秸秆进行回流,探究其反复回用以处理含重金属水稻秸秆的可能性。研究结果表明:厌氧发酵液回流可降解含重金属水稻秸秆,接种厌氧发酵液有助于降解水稻秸秆中木质素和半纤维素,水稻秸秆厌氧发酵释放的重金属对其厌氧发酵过程未产生明显抑制作用。在固液比为3.3%条件下,接种发酵液后含重金属水稻秸秆总甲烷产量和总产气量分别达到121.2,282.6 mL/g VS。秸秆中Cu、Cd、Pb和Zn的释放率分别达到94.22%、54.21%、72.67%和98.55%,沼渣中重金属含量达到GB 8172—87《城镇垃圾农用控制标准》要求,可实现还田利用。发酵结束后,发酵液中Cu、Cd、Pb和Zn浓度分别为0.30,0.073,0.10,2.57 mg/L。结果表明,接种厌氧发酵液可以促进水稻秸秆中重金属释放,进而实现含重金属秸秆和发酵液的联合处置。
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出版历程
  • 收稿日期:  2020-01-19
  • 网络出版日期:  2021-04-23

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