DOI QR코드

DOI QR Code

The Long-term Growth Characteristics of Vegetation Base Materials Include Spent Coffee Ground

커피박이 포함된 식생기반재의 장기생육특성

  • Received : 2016.08.03
  • Accepted : 2016.09.21
  • Published : 2016.10.01

Abstract

At present, coffee consumption amount is annually on the rise in Korea, which results in about 0.27 million tons of coffee waste annually. They are mostly classified as food waste and deserted with moisture contained, being a serious environmental issue. Existing slope greening techniques, which are vegetation based soil-media hydroseeding measures, have problems such as lack of coherence, dryness or lack of organic matters. Therefore in order to assess usability of Spent Coffee Ground (SCG), medium-to long-term growth test was conducted under the indoor and outdoor conditions. According to the result of growth test, when SCG was mixed with existing base materials, moisturizing power increased and organic matter content was reinforced, promoting germination and growth in a medium term. Among others, under the condition when supply of water was discontinued, withering rate was lower than existing base materials and diverse phenomena resulting from lack of nutrition decreased. Therefore, SCG as a waste organic matter with abundant nitrogen has the characteristic of inhibiting early growth but was found to have a quality favorable to long-term growth resulting from water containing ability and the supply of organic mater and is judged to be a material to replace or complement existing base materials.

현재 우리나라의 커피 소비량은 매년 증가하는 추세에 있으며 이에 따라 연간 약 27만 톤의 커피폐기물이 발생되고 있으며, 대부분 음식물쓰레기로 분리되어 수분이 함유된 채로 버려져 심각한 환경적 이슈가 되고 있는 현실이다. 또한 기존의 비탈면녹화공법인 식생기반재취부공법은 결합력의 부족이나 건조화, 유기물의 부족 등의 문제점들을 보이고 있다. 따라서 본 연구에서는 또한 커피박(SCG)의 활용 가능성을 평가하기 위해 중장기 생육실험을 실내와 실외조건하에서 수행하였다. 생육실험결과, 기존의 기반재에 커피박을 혼합하는 경우 보습력의 증가와 유기물함량의 보강으로 초기 발아나 초기 생육은 기존 기반재에 비해 저조하나 중기적으로 발아와 성장이 촉진되는 현상을 보이며 특히, 관수중단 등의 상황에서 기존 기반재에 비해 고사율이 낮고 양분의 부족으로 인한 여러 현상이 줄어들고 있는 것으로 확인되었다. 따라서 커피박은 질소성분이 풍부한 폐유기물로 초기 성장을 저해하는 특성이 있으나 보습능력과 유기물의 공급으로 장기생장에 유리한 성질을 가지고 있는 것으로 확인되어 기존의 기반재를 대체하거나 보완할 수 있는 재료인 것으로 판단된다.

Keywords

References

  1. Choi, J. W., Shin, D. I. and Park, H. S. (2013), Enhancement of growth and bioactivity of pleurotus eryngii mycelia by spent coffee ground, Journal of Agriculture & Life Science, Vol. 46, No. 6, pp. 157-163 (in Korean).
  2. Kim, C. G. and Shin, H. G. (2005), A study on removal of heavy metal in wastewater using exhausted coffee, The Proceeding of Korea Organic Resource Recycling Association, pp. 205-209 (in Korean).
  3. Kim, H. S. (2012), Using environmentally friendly composting coffee by product, Master's thesis, Kwangwoon University, pp. 1-44 (in Korean).
  4. Kim, J. H. (2005), Effects of plant mixtures and tackifibers on the slope vegetation, Master's thesis, Chongju University, pp. 1-52 (in Korean).
  5. Kim, Y. J. (2008), Study on sawdust using re-cycle revegetation measures, Master's thesis, Kangwon National University, pp. 1-43 (in Korean).
  6. Park, K. S., Hwang, I. S. and Bae, W. S. (2015), A study on utilization of waste organic matter for slope protection, Journal of Korean Geo-Environmental Society, Vol. 16, No. 4, pp. 41-48 (in Korean).
  7. Seong, S. Y. and Shin, E. C. (2015), Evaluation of erosion resistance capability with adhesive soil seeding media, Journal of Korean Geosynthetics Society, Vol. 14, No. 2, pp. 71-79 (in Korean). https://doi.org/10.12814/jkgss.2015.14.2.071
  8. Zhang, X. X. (2013), Growth responses of native and foreign berry species in the artificial soils mixed with composted coffee ground, Master's Thesis, Sungkyunkwan University, pp. 1-39 (in Korean).

Cited by

  1. Antioxidant and anti-inflammatory activity on sea tangle (Laminaria japonica) adding vinegar vol.26, pp.2, 2016, https://doi.org/10.11002/kjfp.2019.26.2.211