골프장 잔디예지물을 이용한 액비제조 (Manufacturing Liquid Fertilizer using Turfgrass Clippings from the Golf Courses)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 30권 / 8호 / 804 ~ 812페이지
· 저자명 : 김종대, 권병훈, 노희명, 김상준, 전승우, 서상국, 김길용, 이건형, 정병곤

초록

It was investigated for the feasibility of recycling lawn waste from a golf course to use liquid fertilizer. Turfgrassclippings, microbial agent, waste molasses and synthetic culture medium were used as a raw material of liquid fertilizer, and those were fermented anaerobically to investigate the optimum mixing ratio and fermentation period. The sanitary safety of liquid fertilizer was evaluated as well. When the turfgrass clippings and waste molasses were used as a raw material of liquid fertilizer, increase of the amount of waste molasses resulted in the decrease of decomposition rate of organic matter. When the high concentration of the organic wastes were decomposed, the organic acids were accumulated by the predominant acid forming stage resulted in inefficient anaerobic digestion. The optimum mixing ratios for 1 gram of grass waste were 2.4 to 3.6 mL for sugar and 1.6 to 2.4 mL for EM (Effective Microorganism), respectively. It was also found that optimum fermentation period was about 15 days. The concentration of heavy metals from the manufactured liquid fertilizer was less than the standards guideline. The microorganisms were observed by SEM (Scanning Electron Microscopy) and spherical and rod shaped microorganisms were predominated. The sizes of spherical and rod shaped microorganisms were 0.7 ~ 0.8 μm and 0.7 × 1.3 μm, respectively. The population density of microorganisms was increased rapidly after the 15 days.

영어초록

It was investigated for the feasibility of recycling lawn waste from a golf course to use liquid fertilizer. Turfgrassclippings, microbial agent, waste molasses and synthetic culture medium were used as a raw material of liquid fertilizer, and those were fermented anaerobically to investigate the optimum mixing ratio and fermentation period. The sanitary safety of liquid fertilizer was evaluated as well. When the turfgrass clippings and waste molasses were used as a raw material of liquid fertilizer, increase of the amount of waste molasses resulted in the decrease of decomposition rate of organic matter. When the high concentration of the organic wastes were decomposed, the organic acids were accumulated by the predominant acid forming stage resulted in inefficient anaerobic digestion. The optimum mixing ratios for 1 gram of grass waste were 2.4 to 3.6 mL for sugar and 1.6 to 2.4 mL for EM (Effective Microorganism), respectively. It was also found that optimum fermentation period was about 15 days. The concentration of heavy metals from the manufactured liquid fertilizer was less than the standards guideline. The microorganisms were observed by SEM (Scanning Electron Microscopy) and spherical and rod shaped microorganisms were predominated. The sizes of spherical and rod shaped microorganisms were 0.7 ~ 0.8 μm and 0.7 × 1.3 μm, respectively. The population density of microorganisms was increased rapidly after the 15 days.

참고자료

· 없음