Food and Fermentation Industries >

2023 , Vol. 49 >Issue 9: 135 - 141

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.032694

Effects of microbial agents on treating liquid digestate with different concentrations

  • LOU Yu ,
  • LI Yan ,
  • JIANG Lingwei ,
  • LI Mingxin ,
  • WANG Qizhang ,
  • MA Jitao ,
  • LIN Cong ,
  • DUAN Na
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  • 1(College of Water Resources & Civil Engineering, China Agricultural University, Beijing 100083, China)
    2(Key Laboratory of Agricultural Engineering in Structure and Environment of MOARA, Beijing 100083, China)
    3(Sanhe Yingsheng Bioenergy Technology Co. Ltd., Langfang 065000, China)

Received date: 2022-06-16

  Revised date: 2022-07-20

  Online published: 2023-06-05

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Abstract

With the development of biogas plant, the treatment and utilization of liquid digestate has become the bottleneck for sustainable development of biogas plant. In this study, microbial agents by different methods were adopted to explore the treatment effect on liquid digestate with different chemical oxygen demand (COD) concentrations. The results showed that the sensory and physicochemical properties of liquid digestate changed significantly by adding microbial agents. For the low concentration liquid digestate (COD of 500-2 000 mg/L), liquid digestate and microbial agents was added at the same time, the organic matter and suspended matter in liquid digestate were greatly reduced, the pH changed from alkaline to acidic, and the maximum COD removal rate was 67.6 %. For the high concentration liquid digestate (COD of 5 000-30 000 mg/L), microbial agents were added by one-time and liquid digestate was continuously added during 9 d. The pH of liquid digestate became weak acidic, and the content of organic matter and suspended matter decreased, but the overall change under high concentration was not as obvious as that under low concentration. For different concentrations of liquid digestate, different methods for adding microbial agents can be used to achieve considerable purification effect, which can provide reference for treatment and utilization of liquid digestate.

Key words： microbial agent; liquid digestate; inoculation method; physicochemical properties

Cite this article

LOU Yu , LI Yan , JIANG Lingwei , LI Mingxin , WANG Qizhang , MA Jitao , LIN Cong , DUAN Na . Effects of microbial agents on treating liquid digestate with different concentrations[J]. Food and Fermentation Industries, 2023 , 49(9) : 135 -141 . DOI: 10.13995/j.cnki.11-1802/ts.032694

References

[1] SANZ C, CASADO M, NAVARRO-MARTIN L, et al.Implications of the use of organic fertilizers for antibiotic resistance gene distribution in agricultural soils and fresh food products.A plot-scale study[J].The Science of the Total Environment, 2022, 815:151973.
[2] DONG F Q, LU J B.Using solar energy to enhance biogas production from livestock residue:A case study of the Tongren biogas engineering pig farm in South China[J].Energy, 2013, 57:759-765.
[3] 张晓川, 周磊.沼气工程产品高值化利用科学技术普及模式研究[J].农业科技管理, 2021, 40(5):59-62.
ZHANG X C, ZHOU L.Studies on spreading mode of high value utilization technology of marsh gas engineering products.[J].Management of Agricultural Science and Technology, 2021, 40(5):59-62.
[4] 牛希成, 董泰丽, 刘静.畜禽粪污沼液的综合利用及处理方式研究综述[J].安徽农业科学, 2016, 44(29):26-29.
NIU X C, DONG T L, LIU J.Summary of the multipurpose use and dealing ways about poultry manure bio-slurry[J].Journal of Anhui Agricultural Sciences, 2016, 44(29):26-29.
[5] 方亚曼. 复合微生物菌剂的研制及其在堆肥上的应用研究[D].上海:上海师范大学, 2011.
FANG Y M.Development of compound microbial inoculum and its application in composting[D].Shanghai:Shanghai Normal University, 2011.
[6] 周万海, 魏琴, 王涛, 等.微生物菌剂在醋渣堆肥中的应用[J].食品与发酵工业, 2014, 40(10):11-15.
ZHOU W H, WEI Q, WANG T, et al.Effect of inoculating microbes on composting of vinegar dregs[J].Food and Fermentation Industries, 2014, 40(10):11-15.
[7] 王旭辉, 徐鑫, 宝哲, 等.高通量测序分析玉米秸秆与牛粪联合发酵阶段微生物多样性变化[J].食品与发酵工业, 2019, 45(3):47-55.
WANG X H, XU X, BAO Z, et al.High-throughput sequencing analysis of microbial diversity in the combined fermentation stages of cow dung and corn straw[J].Food and Fermentation Industries, 2019, 45(3):47-55.
[8] 文晓娥. 我国微生物肥料的研发及其在农业生产中的应用[J].新农业, 2021(4):92-93.
WEN X E.Research and development of microbial fertilizer in China and its application in agricultural production[J].Modern Agriculture, 2021(4):92-93.
[9] 秦立金, 尹慧来, 王塔娜, 等.复合微生物菌剂与生物有机肥复配对甜瓜增产提质抗病的研究[J].赤峰学院学报(自然科学版), 2021, 37(12):40-44.
QIN L J, YIN H L, WANG T N, et al.Study on the combination of compound microbial inoculum and bio-organic fertilizer to increase yield, improve quality and disease resistance of melon[J].Journal of Chifeng University (Natural Science Edition), 2021, 37(12):40-44.
[10] 张正球, 刘晓梅, 胡曙鋆, 等.微生物菌剂对保护地草莓产量和效益的影响[J].安徽农业科学, 2020, 48(24):147-149.
ZHANG Z Q, LIU X M, HU S Y, et al.Effects of microbial agents on yield and economic benefits of strawberry in perotected field[J].Journal of Anhui Agricultural Sciences, 2020, 48(24):147-149.
[11] 张丽娟, 郭振兴, 张贞.微生物肥料在果树生产中的应用[J].果农之友, 2020(8):31-32.
ZHANG L J, GUO Z X, ZHANG Z.Application of microbial fertilizer in fruit tree production[J].Fruit Growers’ Friend, 2020(8):31-32.
[12] 赵希彦, 张力飞, 于红茹, 等.微生物菌剂处理猪场沼液应用技术规程[J].辽宁农业职业技术学院学报, 2016, 18(3):4-5.
ZHAO X Y, ZHANG L F, YU H R, et al.Technical specification for application of microbial inoculants in treatment of pig farm biogas slurry[J].Journal of Liaoning Agricultural Technical College, 2016, 18(3):4-5.
[13] 李刚, 杨克, 许方程, 等.微生物菌剂处理规模化养猪场粪污水的研究进展[J].浙江农业科学, 2018, 59(11):2 115-2 117.
LI G, YANG K, XU F C, et al.Research progress of microbial agents in the treatment of swine wastewater from large-scale piggery[J].Journal of Zhejiang Agricultural Sciences, 2018, 59(11):2 115-2 117.
[14] 仝倩倩, 祝英, 崔得领, 等.我国微生物肥料发展现状及在蔬菜生产中的应用[J].中国土壤与肥料, 2022(4):259-266.
TONG Q Q, ZHU Y, CUI D L, et al.The development status of microbial fertilizer in China and its application in vegetable planting[J].Soil and Fertilizer Sciences in China, 2022(4):259-266.
[15] 邓夏婕. 生活垃圾生物反应器微生物菌剂对发酵产物的作用影响[D].重庆:重庆大学, 2017.
DENG X J.The effect of microbiological agents on fermentation products in MSW bioreactor[D].Chongqing:Chongqing University, 2017.
[16] 黄婧, 肖艳春, 陈彪.净化剂对猪场沼液中COD的去除及其应用条件的响应面优化[J].环境工程学报, 2015, 9(11):5 439-5 446.
HUANG J, XIAO Y C, CHEN B.Eliminating COD in biogas slurry by scavenging agent and optimizing application with response surface assess[J].Chinese Journal of Environmental Engineering, 2015, 9(11):5 439-5 446.
[17] 张恺, 张玉钧, 殷高方, 等.综合散射法与透射法测量水浊度的研究[J].大气与环境光学学报, 2011, 6(2):100-105.
ZHANG K, ZHANG Y J, YIN G F, et al.Measurement of water turbidity combined with scattering and transmission method[J].Journal of Atmospheric and Environmental Optics, 2011, 6(2):100-105.
[18] 梁红敏, 郭亚芸, 史红梅.不同乳酸菌发酵葡萄酵素过程中代谢产物及其抗氧化特性分析[J].食品研究与开发, 2021, 42(24):170-176.
LIANG H M, GUO Y Y, SHI H M.Analysis of the metabolic components and antioxidant properties of different lactic acid bacteria during grape fermentation[J].Food Research and Development, 2021, 42(24):170-176.
[19] 张成林, 钱怡霖, 刘尊英.酵母菌代谢产物对植物乳杆菌AB-1生产苯乳酸的影响[J].食品研究与开发, 2021, 42(11):145-151.
ZHANG C L, QIAN Y L, LIU Z Y.Effect of yeast metabolites on the production of phenyllactic acid by Lactobacillus plantarum AB-1[J].Food Research and Development, 2021, 42(11):145-151.
[20] 邵子昕. 蔬菜废弃物厌氧发酵产沼气及其残留物的应用研究[D].昆明:昆明理工大学, 2020.
SHAO Z X.Biogas production from vegetable waste by anaerobic fermentation and its residue application[D].Kunming:Kunming University of Science and Technology, 2020.
[21] 黄俊霖, 莫创荣, 龙菲妃, 等.小球藻对絮凝预处理沼液的适应性及净化效果[J].水处理技术, 2021, 47(12):81-86.
HUANG J L, MO C R, LONG F F, et al.The adaptability and purification effect of Chlorella to flocculation biogas slurry[J].Technology of Water Treatment, 2021, 47(12):81-86.
[22] 黄丹丹, 罗皓杰, 应洪仓, 等.沼液贮存中甲烷和氨气排放规律实验[J].农业机械学报, 2012, 43(S1):190-193.
HUANG D D, LUO H J, YING H C, et al.Methane and ammonia emissions patterns during digested slurry storage[J].Transactions of the Chinese Society for Agricultural Machinery, 2012, 43(S1):190-193.
[23] 彭智平, 李文英, 杨少海, 等.微生物菌剂处理猪场沼液效果研究[J].中国农学通报, 2011, 27(1):366-369.
PENG Z P, LI W Y, YANG S H, et al.Study on treatment of piggery biogas slurry with microorganism preparation[J].Chinese Agricultural Science Bulletin, 2011, 27(1):366-369.
[24] 王波. 畜禽养殖废水资源化处理相关功能微生物的筛选与应用研究[D].西安:西安建筑科技大学, 2019.
WANG B.Screening and application of functional microorganisms related to reclamation of aquaculture wastewater[D].Xi’an:Xi’an University of Architecture and Technology, 2019.
[25] ZHAO Y J, GUO G Y, SUN S Q, et al.Co-pelletization of microalgae and fungi for efficient nutrient purification and biogas upgrading[J].Bioresource Technology, 2019, 289:121656.
[26] GAO S M, HU C W, SUN S Q, et al.Performance of piggery wastewater treatment and biogas upgrading by three microalgal cultivation technologies under different initial COD concentration[J].Energy, 2018, 165:360-369.
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