II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
2.3 Methods used for restoration
Firstly, a water purification system using gravel contact oxidation process was installed to clean the water. The system located in Young-dong 2 gyo was the first to utilize the gravel contact oxidation process in Korea. It uses a media like gravel and artificially maximize the natural purification process like precipitation, absorption and decomposition by
적합한 식물종
- 정수식물: 갈대, 줄, 애기부들, 미나리, 창포, 노랑꽃 창포 - 침수식물: 검정말, 이삭물수세미
- 부엽식물: 수련, 마름
- 부유식물: 개구리밥, 좀개구리밥
지속적으로 안정적인 정화효율을 유지하기 위해서
지역 특성에 적합한 토종식물을 발굴하고 적용하는 노력 필요
(만초천은
Ⅰ. 서론
우리나라와 일본 사이에는 새로운 어업협정이 체결되기 이전에 이미 어업협정이 있었으며, 중국과 일본 사이에도 정부간 어업협정이 체결되어 있었다. 그러나 우리나라와 중국간에는 1992년 8월 수교전에는 물론 그 이후에도 어업협정이 없었다. 이렇게 양국간 어업을 규율할 법적인 틀이 없
Protection from Injuries
Adequate physical activity
Access to an improved water supply and sanitation has in general increased across Europe, resulting in an 80% decrease in diarrheal disease in young children from 1995 to 2005.
Nevertheless 120 million people do not have access to safe drinking-water now in the European Region.
Especially, more than 50% of the rural populatio