생체모방형 토양개량제를 이용한 산성토양 안정화 적용성 평가
Evaluation of Acid Soil Stabilization Applicability by using Biomimetic Soil Improvement Agents
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초록
생체모방형 토양개량제인 생광물화균 Myxococcus xanthus와 토착미생물을 활용하여 국내에 산재되어 있는 휴･폐광산의산성토양에서 중화실험을 수행하였다. 토양에서의 중화능력 확인 실험 결과 M. xanthus와 산성 토양에서 추출한 토착미생물에서 중화능력이 확인되었다. 미생물 투입비와 영양배지의 배합비는 M. xanthus 100 ml + NB배지 120 ml, 토착미생물 80 ml + NB배지 80 ml 로 산정하였다. 미생물을 처리한 토양의 배양온도를 4°C로 조절한 실험에서는 미생물의 생장이 진행되지 못해 토양의 중화가 확인되지 않았다.
Abstract
Neutralization experiments for acid soil near mining area were conducted using indigenous microorganism and biomineralization microorganism named Myxococcus xanthus, M. xanthus and indigenous microorganism extracted from acidic soil showed neutralization ability through the experiment. Optimum microorganism input and nutrient broth ratio was determined as M. xanthus 100 ml + nutrient broth 120 ml, indigenous microorganism 80 ml + nutrient broth 80 ml. The experiment conducted in 4°C showed no neutralization effect which implies that, application of microorganism should be cautious to field temperature.
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