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基质组分对厨余与污泥共发酵动力学特性的影响

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许曼娟, 李倩, 张念瑞, 陈荣. 基质组分对厨余与污泥共发酵动力学特性的影响[J]. 环境工程学报, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
引用本文: 许曼娟, 李倩, 张念瑞, 陈荣. 基质组分对厨余与污泥共发酵动力学特性的影响[J]. 环境工程学报, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
shu
XU Manjuan, LI Qian, ZHANG Nianrui, CHEN Rong. Effects of substrates components on kinetic characterization of co-digestion of food waste and waste activated sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
Citation: XU Manjuan, LI Qian, ZHANG Nianrui, CHEN Rong. Effects of substrates components on kinetic characterization of co-digestion of food waste and waste activated sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
shu

基质组分对厨余与污泥共发酵动力学特性的影响

  • 1.

    西安建筑科技大学环境与市政工程学院,西安 710055

  • 基金项目:

    国家自然科学基金资助项目(51608430)

    中国博士后科学基金资助项目(2016M602781)

Effects of substrates components on kinetic characterization of co-digestion of food waste and waste activated sludge

  • 1.

    School of Environmental & Municipal Engineering, Xi′an University of Architecture & Technology, Xi′an 710055,China

  • Fund Project:

摘要

  • 摘要: 通过厌氧发酵4阶段动力学实验、产甲烷抑制实验及单一VFA的产甲烷动力学实验,探明了厨余和污泥共发酵过程中,典型组分对其潜在的酸积累类型以及甲烷化过程的影响。结果表明,不同基质组分在厌氧发酵过程中的VFA组成比例以及单一VFA的产甲烷化动力学特性,对其产甲烷潜能及速率有着决定性影响。乙酸的甲烷化速率高达44.80 mL·d-1,丁酸略慢于乙酸,而丙酸和戊酸的甲烷化速率不足乙酸的1/2,其中丙酸的延滞期长达1.76 d。因此,产酸类型以乙酸为主的污泥、菜类在产甲烷阶段不存在延滞期；而蛋肉类及油的产甲烷速率受到丙酸、戊酸动力学特性的影响相对较慢。通过调整共发酵基质配比不仅能够提高发酵潜能,还能够优化VFA组成比例,实现较高的甲烷产率及甲烷化速率。
    Abstract: The effects of substrate components on VFA accumulation and methane production during the co-digestion of food waste (FW) and waste activated sludge (WAS) were investigated by batch tests involving kinetic test of 4 stages of anaerobic digestion, methanogenesis inhibition test and kinetic test of methane production from individual VFA. Results showed that the composition of VFA which generated during anaerobic digestion of different substrate fraction and the kinetic characteristics of methanogensis of individual VFA affected the methane production potential and rate significantly. The methanogenesis rate of acetic acid was 44.80 mL·d-1, while, the methanogenesis rate of butyric acid was slightly lower than that of acetic acid. However, the methanogenesis rates of propionic acid and valeric acid were lower than half of that of acetic acid, and the lag time of propionic acid was as long as 1.76 d. Therefore, the methane production from WAS and vegetable of which acetate accounted for a large proportion showed no lag time. While, the methane production rate of the egg, meat and oil was affected by the kinetic characteristics of methanogenesis of propionic acid and velaric acid, thus it was relatively low. Co-digestion of FW and WAS could promote the potential of methane production, and achieve higher methane yield and production rate by optimizing the composition of generated VFA.
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    参考文献

    1. YANG G, ZHANG G M, WANG H C.Current state of sludge production, management, treatment and disposal in China[J].Water Research,2015,78:60-73. [CrossRef]
    2. MCCARTY P L, MCKINNEY R E. Salt toxicity in anaerobic digestion[J].Journal of Water Pollution Control Federation,1961,33(4):399-415. [CrossRef]
    3. CHEN Y, CHEN J J, CREAMER K S.Inhibition of anaerobic digestion process:A review[J].Bioresource Technology,2008,99(10):4044-4064. [CrossRef]
    4. IACOVIDOU E, OHANDJA D G, VOULVOULIS N.Food waste co-digestion with sewage sludge:Realising its potential in the UK[J].Journal of Environmental Management,2012,112(24):267-274. [CrossRef]
    5. 段妮娜,董滨,李江华,等.污泥和厨余垃圾联合干法中温厌氧发酵性能研究[J].环境科学,2013,34(1):321-327.
    6. YANG Y, CHEN Q, GUO J L.Kinetics and methane gas yields of selected C1 to C5 organic acids in anaerobic digestion[J].Water Research,2015,87:112-118. [CrossRef]
    7. LI Q, QIAO W, WANG X C, et al.Kinetic characterization of thermophilic and mesophilic anaerobic digestion for coffee grounds and waste activated sludge[J].Waste Management,2015,36:77-85. [CrossRef]
    8. HANAKI K, HIRUNMASUWAN S, MATSUO T.Protection of methanogenic bacteria from low pH and toxic materials by immobilization using polyvinyl alcohol[J].Water Research,1994,28(4):877-885. [CrossRef]
    9. 许之扬,赵明星,阮文权,等.VFA抑制厨余垃圾厌氧发酵过程及代谢途径的研究[C]//中国沼气安全.2012年中国沼气学会学术年会论文集,2012:33-36.
    10. LI Q, LI Y Y, QIAO W, et al.Sulfate addition as an effective method to improve methane fermentation performance and propionate degradation in thermophilic anaerobic co-digestion of coffee grounds, milk and waste activated sludge with AnMBR[J].Bioresource Technology,2015,185:308-315. [CrossRef]
    11. 张玉静,蒋建国,王佳明,等.pH值对餐厨垃圾厌氧发酵产挥发性脂肪酸的影响[J].中国环境科学,2013,33(4):680-684. [CrossRef]
    12. ISA M H, FAROOQI I H, SIDDIQI R H. Methanogenic activity test for study of anaerobic processes[J].Indian Journal of Environmental Health,1993,35(1):1-8. [CrossRef]
    13. CHINGSHYUNG H, DONLON B, LETTINGA G.Comparative toxicity of long-chain fatty acid to anaerobic sludges from various origins[J].Water Science and Technology,1996,34(5/6):351-358. [CrossRef]
    14. MCINERNEY M J. Anaerobic hydrolysis and fermentation of fats and proteins[M]//ZEHNDERA J B. Biology of Anaerobic Microorganisms. New York: John Wiley & Sons,1988:378-415.
  • [1] YANG G,ZHANG G M,WANG H C.Current state of sludge production,management, treatment and disposal in China[J].Water Research,2015,78:60-73
    [2] MCCARTY P L, MCKINNEY R E.Salt toxicity in anaerobic digestion[J].Journal of Water Pollution Control Federation,1961,33(4):399-415
    [3] CHEN Y,CHEN J J,CREAMER K S.Inhibition of anaerobic digestion process:A review[J].Bioresource Technology,2008,99(10):4044-4064
    [4] IACOVIDOU E,OHANDJA D G,VOULVOULIS N.Food waste co-digestion with sewage sludge:Realising its potential in the UK[J].Journal of Environmental Management,2012,112(24):267-274
    [5] 段妮娜,董滨,李江华,等.污泥和厨余垃圾联合干法中温厌氧发酵性能研究[J].环境科学,2013,34(1):321-327
    [6] YANG Y, CHEN Q, GUO J L.Kinetics and methane gas yields of selected C1 to C5 organic acids in anaerobic digestion[J].Water Research,2015,87:112-118
    [7] LI Q,QIAO W,WANG X C,et al.Kinetic characterization of thermophilic and mesophilic anaerobic digestion for coffee grounds and waste activated sludge[J].Waste Management,2015,36:77-85
    [8] HANAKI K,HIRUNMASUWAN S,MATSUO T.Protection of methanogenic bacteria from low pH and toxic materials by immobilization using polyvinyl alcohol[J].Water Research,1994,28(4):877-885
    [9] 许之扬,赵明星,阮文权,等.VFA抑制厨余垃圾厌氧发酵过程及代谢途径的研究[C]//中国沼气安全.2012年中国沼气学会学术年会论文集,2012:33-36
    [10] LI Q, LI Y Y, QIAO W,et al.Sulfate addition as an effective method to improve methane fermentation performance and propionate degradation in thermophilic anaerobic co-digestion of coffee grounds, milk and waste activated sludge with AnMBR[J].Bioresource Technology,2015,185:308-315
    [11] 张玉静,蒋建国,王佳明,等.pH 值对餐厨垃圾厌氧发酵产挥发性脂肪酸的影响[J].中国环境科学,2013,33(4):680-684
    [12] ISA M H, FAROOQI I H, SIDDIQI R H.Methanogenic activity test for study of anaerobic processes[J].Indian Journal of Environmental Health,1993,35(1):1-8
    [13] CHINGSHYUNG H,DONLON B,LETTINGA G.Comparative toxicity of long-chain fatty acid to anaerobic sludges from various origins[J].Water Science and Technology,1996,34(5/6):351-358
    [14] MCINERNEY M J.Anaerobic hydrolysis and fermentation of fats and proteins[M]//ZEHNDERA J B.Biology of Anaerobic Microorganisms.New York:John Wiley & Sons,1988:378-415

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许曼娟, 李倩, 张念瑞, 陈荣. 基质组分对厨余与污泥共发酵动力学特性的影响[J]. 环境工程学报, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
引用本文: 许曼娟, 李倩, 张念瑞, 陈荣. 基质组分对厨余与污泥共发酵动力学特性的影响[J]. 环境工程学报, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
shu
XU Manjuan, LI Qian, ZHANG Nianrui, CHEN Rong. Effects of substrates components on kinetic characterization of co-digestion of food waste and waste activated sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
Citation: XU Manjuan, LI Qian, ZHANG Nianrui, CHEN Rong. Effects of substrates components on kinetic characterization of co-digestion of food waste and waste activated sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 278-285. doi: 10.12030/j.cjee.201705086
shu

基质组分对厨余与污泥共发酵动力学特性的影响

  • 1. 西安建筑科技大学环境与市政工程学院,西安 710055
基金项目:

国家自然科学基金资助项目(51608430)

中国博士后科学基金资助项目(2016M602781)

摘要: 通过厌氧发酵4阶段动力学实验、产甲烷抑制实验及单一VFA的产甲烷动力学实验,探明了厨余和污泥共发酵过程中,典型组分对其潜在的酸积累类型以及甲烷化过程的影响。结果表明,不同基质组分在厌氧发酵过程中的VFA组成比例以及单一VFA的产甲烷化动力学特性,对其产甲烷潜能及速率有着决定性影响。乙酸的甲烷化速率高达44.80 mL·d-1,丁酸略慢于乙酸,而丙酸和戊酸的甲烷化速率不足乙酸的1/2,其中丙酸的延滞期长达1.76 d。因此,产酸类型以乙酸为主的污泥、菜类在产甲烷阶段不存在延滞期；而蛋肉类及油的产甲烷速率受到丙酸、戊酸动力学特性的影响相对较慢。通过调整共发酵基质配比不仅能够提高发酵潜能,还能够优化VFA组成比例,实现较高的甲烷产率及甲烷化速率。

English Abstract

参考文献 (14)

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