Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
권호 표지
DOI QR코드

DOI QR Code

Biochemical Methane Potential Analysis of Mushroom Waste Medium

버섯 폐배지의 생화학적 메탄퍼텐셜 분석

  • 김창규 (한경대학교 바이오가스연구센터) ;
  • 이준형 (한경대학교 바이오가스연구센터) ;
  • 윤영만 (한경대학교 바이오가스연구센터)
  • Received : 2021.12.01
  • Accepted : 2021.12.22
  • Published : 2022.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

Mushroom waste medium refers to the waste biomass generated after mushroom cultivating. And, the burden of treatment on mushroom farmhouse is increasing due to the absence of appropriate treatment method and increase of treatment costs of the mushroom waste medium. In this study, in order to assess the energy value of mushroom waste medium by an anaerobic digestion, methane potential and anaerobic organic matter decomposition characteristics were investigated. The theoretical methane potential(Bth) of mushroom medium(MM) was 0.481 Nm3-CH4/kg-VSadded, and the Bth of mushroom waste medium(MWM) was 0.451 Nm3-CH4/kg-VSadded. The biochemical methane potential(Bu-exp) of MWM was increased by 18% from 0.155 for MM to 0.183 Nm3-CH4/kg-VSadded for MWM. In the reaction kinetics analysis by the Modified Gompertz model, the maximum methane production rate(Rm) was increased from 4.59 for MM to 7.21 mL/day for MWM and the lag growth phase time(λ) was decreased from 2.78 for MM to 1.96 days for MWM. In the reaction kinetics analysis by the parallel first order kinetics model, the easily degradable organic matter(VSe) content was increased by 5.89% and the persistently degradable organic matter(VSp) content was 2.03% in MWM, and the non-degradable organic matter(VSNB) content was decreased by 7.85%. Therefore, it was evaluated that the anaerobic digestion efficiency of MWM was increased. The anaerobic digestion efficiency of MWM was assessed to be more improved than that of MM.

버섯 폐배지는 버섯의 수확 후 발생하는 폐기물계 바이오매스로서 적정처리 방법의 부재와 위탁처리 비용의 상승으로 버섯재배 농가의 처리 부담을 증가시키고 있다. 본 연구에서는 버섯 폐배지의 적정처리를 위한 방법으로 혐기소화를 통한 바이오에너지화 방안을 검토하기 위하여 버섯재배 사용 전 배지(Mushroom medium; MM)와 사용 후 폐배지(Mushroom waste medium; MWM)의 메탄퍼텐셜을 분석하고 혐기소화 과정에서의 유기물의 분해특성을 파악하고자 하였다. 버섯재배 전과 후, MM과 MWM의 이론적 메탄퍼텐셜(Bth)은 0.481, 0.451 Nm3-CH4/kg-VSadded으로 MWM에서 6.2% 낮았으나, 생화학적 메탄퍼셜은 0.155, 0.183 Nm3-CH4/kg-VSadded으로 MWM에서 18% 증가하였다. Modified Gompertz model에 의한 반응속도 분석에서 MM과 MWM의 최대메탄생산량(Rm)은 각각 4.59, 7.21 mL/day이었으며, 지체성장기시간(λ)는 각각 2.78, 1.96 day으로 MWM에서 혐기소화 속도가 증가하였다. Parallel first order kinetics model에 의한 반응속도 분석에서 MM과 비교하여 MWM에서 이분해성 유기물(VSe) 함량이 5.89%, 분해저항성 유기물(VSp) 함량이 2.03% 높았으며, 난분해성 유기물(VSNB) 함량은 7.85%가 낮았다. 따라서, 버섯재배 사용 전 배지보다 폐배지의 혐기소화 특성이 더 우수하였다.

Keywords

Acknowledgement

본 연구는 농림축산식품부 2025 축산현안대응 산업화기술개발사업(과제번호: 321093-2)의 연구비 지원을 받아 수행되었습니다.

References

  1. Main statistics of the Ministry of Ministry of Agriculture, "Food and Rural Affairs". (2020).
  2. Williams, B. C., Mcmullan, J. T. and Mccahey, S., "An initial assessment of spent mushroom compost as a potential energy feedstock", Bioresource Technology, 79, 227~230. (2001). https://doi.org/10.1016/S0960-8524(01)00073-6
  3. Kim, Y. I., Bae, J. S., Huh, J. W. and Kwak, S. W., "Monitoring of feed-nutritional components, toxic heavy metals and pesticide residues in mushroom substrates according to bottle type and vinyl bag type cultivation", Journal of Animal Science and Technology, 49(1), pp. 67~78. (2007). https://doi.org/10.5187/JAST.2007.49.1.067
  4. Chang, S. T., "Microbial biotechnology-Integrated studies on utilization of solid organic wastes", Resources and Conservation, 13, pp. 75~82. (1987). https://doi.org/10.1016/0166-3097(87)90051-4
  5. Bisara, R., Madan, M. and Vasudewan, P., "Utilization of agro-residues as animal feed through bioconversion", Bioresource Technology, 59, pp. 5~8. (1997). https://doi.org/10.1016/S0960-8524(96)00140-X
  6. Lin, Y., Ge, X. and Li, Y., "Solid-state anaerobic co-digestion of spent mushroom substrate with yard trimmings and wheat straw for biogas production", Bioresource Technology, 169, pp. 468~474. (2014). https://doi.org/10.1016/j.biortech.2014.07.020
  7. Luo, X., Yuan, X., Wang, S., Sun, F., Hou, Z., Hu, Q., Zhai, L., Cui, Z. and Zou, Y., "Methane production and characteristics of the microbial community in the co-digestion of spent mushroom substrate with dairy manure", Bioresource Technology, 250, pp. 611~620. (2018). https://doi.org/10.1016/j.biortech.2017.11.088
  8. Lee, S. M., Kim, Y. I. and Kwak, W. S., "Effect of by-product mixing silage feeding on the eating and ruminating behavior of Hanwoo steer", Journal of The Korean Society of Grassland Science, 30(2), pp. 159~168. (2010). https://doi.org/10.5333/KGFS.2010.30.2.159
  9. Kim, Y. I., Seok, J. S. and Kwak, W. S., "Evaluation of microbially ensiled spent mushroom (Pleurotus osteratus) substrates (Bed-type cultivation) as a roughage for ruminants", Journal of Animal Science and Technology, 52(2), pp. 117~124. (2010). https://doi.org/10.5187/JAST.2010.52.2.117
  10. Bae, D. H., Effects "Chemical compositions and digestibilites of the bulking agents as a moisture control and fermentation methods food waste", Journal of Korea Society of Waste Management, 8(4), pp. 100~110. (2000).
  11. Boyle, W. C., "Energy recovery from sanitary landfills a reviewe", In H. G. Schlegel and J. Barnea (Eds.), Microbial Energy Conversion, Pergamon Press Oxford UK, pp. 119~138. (1976).
  12. Oh, S. Y. and Yoon, Y. M., "Assesment of methane potential in hydro-thermal carbonization reaction of organic sludge using parallel first order kinetics", Korean Journal of Environmental Agriculture, 35, pp. 128~136. (2016). https://doi.org/10.5338/KJEA.2016.35.2.13
  13. Lay, J. J., Li, Y. Y. and Noike, T., "Mathematical model for methane production from landfill bioreactor", J. Environ. Eng., 124(8), pp. 730~736. (1998). https://doi.org/10.1061/(ASCE)0733-9372(1998)124:8(730)
  14. Rao, M. S., Singh, S. P., Singh, A. K. and Sodha, M. S., "Bioenergy conversion studies of organic fraction of MSW: Assessment of ultimate bioenergy production of municipal garbage", Applied Energy, 66, pp. 75~87. (2000). https://doi.org/10.1016/S0306-2619(99)00056-2
  15. Luna-delRisco, M., Normak, A. and Orupold, K., "Biochemical methane potential of different organic wastes and energy crops from Estonia", Agronomy Research, 9(1-2), pp. 331~342. (2011).
  16. Shin, K. S., "Factor analysis of methane production potential from crop and livestock biomass", Ph.D. Thesis, Hankyong National University, Anseong, Korea. (2013).
  17. Sorensen, A. H., Winther-Nielsen, M. and Ahring, B. K., "Kinetics of lactate, acetate and propionate in unadapted and lactate-adapted thermophilic, anaerobic sewage sludge: The influence of sludge adaptation for start-up of thermophilic UASB reactors", Applied Microbiology and Biotechnology, 34(6), pp. 823~827. (1991). https://doi.org/10.1007/BF00169358
  18. Rongoei, P. J. K. and Outa, N. O., Standard methods for the examination of water and wastewater, 20th ed., APHA (American Pubilic Health Association). (1998).
  19. Shirkavand, E., Baroutian, S., Gapes, D. J. and Young, B R., "Combination of fungal and physicochemical processes for lignocellulosic biomass pretreatment - A review", Renewable and Sustainable Energy Review, 54, pp. 217~234. (2016). https://doi.org/10.1016/j.rser.2015.10.003
  20. Shim, C. K., Kim, M. J., Jee, H. J., Park, J. H., Hong, S. J., Han, E. J. and Kim, S. C., "Estimation of the chitinolytic and antifungal activity of streptomyces sp. CA-23 and AA-65 isolates isolated from waste mushroom media", The Korean Journal of Pesticide Science, 19(4), pp. 402~410. (2015). https://doi.org/10.7585/kjps.2015.19.4.402