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花生粕和淘米水联合发酵产酸的协同效应

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黄定武, 方茜, 吉诗敏, 黄周玥, 曾蕴仪, 肖英豪. 花生粕和淘米水联合发酵产酸的协同效应[J]. 环境工程学报, 2019, 13(2): 465-473. doi: 10.12030/j.cjee.201808077
引用本文: 黄定武, 方茜, 吉诗敏, 黄周玥, 曾蕴仪, 肖英豪. 花生粕和淘米水联合发酵产酸的协同效应[J]. 环境工程学报, 2019, 13(2): 465-473. doi: 10.12030/j.cjee.201808077
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HUANG Dingwu, FANG Qian, JI Shimin, HUANG Zhouyue, ZENG Yunyi, XIAO Yinghao. Synergistic effects of acid production by combined fermentation of peanut meal and rice washing water[J]. Chinese Journal of Environmental Engineering, 2019, 13(2): 465-473. doi: 10.12030/j.cjee.201808077
Citation: HUANG Dingwu, FANG Qian, JI Shimin, HUANG Zhouyue, ZENG Yunyi, XIAO Yinghao. Synergistic effects of acid production by combined fermentation of peanut meal and rice washing water[J]. Chinese Journal of Environmental Engineering, 2019, 13(2): 465-473. doi: 10.12030/j.cjee.201808077
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花生粕和淘米水联合发酵产酸的协同效应

  • 1.

    广州大学土木工程学院市政工程系，广州 510006

  • 基金项目:

    广东省自然科学基金资助项目2017A030313273广东省自然科学基金资助项目(2017A030313273)

Synergistic effects of acid production by combined fermentation of peanut meal and rice washing water

  • 1.

    Department of Municipal Engineering，College of Civil Engineering，Guangzhou University, Guangzhou 510006, China

  • Fund Project:

  • 摘要: 为了研究2种典型有机废物花生粕和淘米水联合发酵产挥发性脂肪酸(VFAs)的协同效应。根据不同配比设计了6组C/N，采用批式厌氧发酵工艺，考查各组的VFAs产量及组成、pH、氨氮和溶解性糖原的变化。结果表明：通过 与花生粕空白组和淘米水空白组对比，C/N=15∶1和25∶1协同效应均显著，VFAs最高浓度分别为11 939.95 mg·L-1和 17 228.06 mg·L-1；利用响应曲面法分析预测在C/N=26.24，发酵时间为10.54 d时，产VFAs效果最优；C/N=69∶1协同效应均显著、C/N=156∶1协同效应均不存在。C/N=15∶1和25∶1的VFAs产量与pH均呈显著正相关、与氨氮均呈极显著正相关、与溶解性糖原均呈极显著负相关。由此可知，C/N=15∶1和25∶1产VFAs效果较好。
    Abstract: In order to investigate the synergistic effects of the combined fermentation of two typical organic wastes (peanut meal and rice washing water) to produce volatile fatty acids (VFAs), the batch anaerobic fermentation tests with six different C/N ratios of peanut meal and rice washing water were conducted. Under each C/N ratio, the changes of VFAs yield and composition, pH, ammonia nitrogen and dissolved glycogen during the fermentation process were studied accordingly. The results showed that the significant synergistic effects occurred at C/N ratios of 15∶1 and 25∶1 in comparison with the blank groups of peanut meal and the rice washing water, and the highest VFAs concentrations were 11 939.95 mg·L-1 and 17 228.06 mg·L-1, respectively. The response surface methodology (RSM) was used to predict the optimum VFAs yield, which occurred at C/N ratio of 26.24 and 10.54 fermentation days. In addition, a significant synergistic effect also happened at C/N ratio of 69∶1, while this effect didn’t happen at C/N ratio of 156∶1. Moreover, a significant positive correlation was determined between the VFAs yields at C/N ratios of 15∶1 and 25∶1 and pH, an extremely significant positive correlation happened between them and ammonia nitrogen, while an extremely significant negatively correlation appeared between them and soluble glycogen. Thus, better VFAs yields occurred at C/N ratios of 15∶1 and 25∶1 than others.
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  • 刊出日期:  2019-02-02

花生粕和淘米水联合发酵产酸的协同效应

  • 1. 广州大学土木工程学院市政工程系，广州 510006
基金项目:

广东省自然科学基金资助项目2017A030313273广东省自然科学基金资助项目(2017A030313273)

摘要: 为了研究2种典型有机废物花生粕和淘米水联合发酵产挥发性脂肪酸(VFAs)的协同效应。根据不同配比设计了6组C/N，采用批式厌氧发酵工艺，考查各组的VFAs产量及组成、pH、氨氮和溶解性糖原的变化。结果表明：通过 与花生粕空白组和淘米水空白组对比，C/N=15∶1和25∶1协同效应均显著，VFAs最高浓度分别为11 939.95 mg·L-1和 17 228.06 mg·L-1；利用响应曲面法分析预测在C/N=26.24，发酵时间为10.54 d时，产VFAs效果最优；C/N=69∶1协同效应均显著、C/N=156∶1协同效应均不存在。C/N=15∶1和25∶1的VFAs产量与pH均呈显著正相关、与氨氮均呈极显著正相关、与溶解性糖原均呈极显著负相关。由此可知，C/N=15∶1和25∶1产VFAs效果较好。

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