CAJ | 학술논문

煤炭地下气化具有经济、能开采难接近煤层和环境友好等优点，再度成为能源转化与利用技术而兴起．综述了煤炭地下气化技术发展状况及经济和环境效益，煤炭地下气化可能对地下水造成的有机和无机污染，以及污染地下水的修复技术；提出大面积煤炭地下气化时污染物是否会在地下水中聚集、地下水及围岩系统是否能够完全消除污染物等有待进一步研究的课题．
매탄지하기화구유경제、능개채난접근매층화배경우호등우점，재도성위능원전화여이용기술이흥기．종술료매탄지하기화기술발전상황급경제화배경효익，매탄지하기화가능대지하수조성적유궤화무궤오염，이급오염지하수적수복기술；제출대면적매탄지하기화시오염물시부회재지하수중취집、지하수급위암계통시부능구완전소제오염물등유대진일보연구적과제．
Underground coal gasification (UCG)has re-emerged as an energy technology for coal conversion and utilization because of its advantages such as attractive economics, ability to access inaccessible coals and envi- ronmental friendly. The development status and economic and environmental benefits of UCG are introduced, and the organic and inorganic pollution of groundwater caused by UCG and remediation of polluted groundwater are also analyzed. Based on the analysis above it has been posed that problems, whether the pollutants will be gathered in groundwater or eliminated fully by the system composed of groundwater and surrounding rock when the coal seams are gasified in a large area.