The coffee grounds generated during the coffee extraction process contain several resources, but the technology for their recycling has not been commercialized yet, causing various environmental problems. Due to the recent increase in coffee consumption worldwide, the amount of coffee grounds produced has been continuously increasing, reaching more than 750 million tons. In Korea, about 120,000 tons of coffee waste are annually generated; however, most of them are landfilled or incinerated. Although there is still a shortage of coffee waste recycling technologies compared to the amount of coffee grounds produced, various recycling approaches are being actuated in many countries including Korea. In this study, the generation of coffee grounds at home and abroad, the status of coffee grounds recycling, and the associated technology development trends were investigated. The coffee grounds recycling has been studied in the fields of energy, adsorbent, construction, agriculture, and bio-foods. Research is most active in the energy and biotechnology areas; in particular, since the oil in the coffee grounds is valuable as a feedstock for biomass energy, the technology related to energy recovery is currently under development worldwide. Removed because confusing and unnecessary.

Abstract
 I. 서 론
 II. 커피 추출 폐기물 발생 현황
  1. 국내 커피 생산량, 수입량 및 소비량 현황
  2. 글로벌 커피 생산량 및 소비량 현황
  3. 커피 추출 폐기물 발생과 처리 현황
 III. 커피 추출 폐기물 재활용 기술개발 현황
  1. 커피 추출 폐기물 재활용 기술개발 현황
  2. 기술개발 사례 분석
 IV. 결 론
 References

• 홍현선(성신여자대학교 청정융합에너지공학과) | Hyun Seon Hong (Department of Environment & Energy Engineering, Sungshin Women’s University) Corresponding author
• 김율이(성신여자대학교 청정융합에너지공학과) | Yuli Kim (Department of Environment & Energy Engineering, Sungshin Women’s University)
• 오민주(성신여자대학교 청정융합에너지공학과) | Min Joo Oh (Department of Environment & Energy Engineering, Sungshin Women’s University)
• 이유미(성신여자대학교 청정융합에너지공학과) | Yu Mi Lee (Department of Environment & Energy Engineering, Sungshin Women’s University)
• 이혜지(성신여자대학교 청정융합에너지공학과) | Hye Ji Lee (Department of Environment & Energy Engineering, Sungshin Women’s University)
• 차은서(성신여자대학교 청정융합에너지공학과) | Eun Seo Cha (Department of Environment & Energy Engineering, Sungshin Women’s University)