‘Green issues’ is still a very wide and rather vague overarching term for a broad range of topics
‘Sustainability’ means developing and managing attractions which are as environmentally friendly, socially equitable and economically viable as possible
How Consumers & Organizations Can Become Greener
Symbolic action in relation to the day-to-day operation of the organization, such as th
irony here for sympathetic rather than detractive purposes. In line 3 the boy, too young to articulate clearly, is calling out his trade in the streets--sweep, sweep, sweep, sweep but the poet is telling us that we should weep over his pitiful plight. In lines 7-8 the innocent boy is genuinely trying to comfort his friend and does not recognize, as the poet does, the ironic discrepancy between th
1. 서론
휴‧ 폐광산 환경오염문제 중 가장 대표적인 것이 폐갱구 및 광산폐기물에서 유출되는 산성광산폐수(Acid Mine Drainage, AMD)이다. 광산폐수는 낮은 pH(2.5~5.0)를 보이며 고농도의 황산염과 중금속을 함유한 폐수이나 휴‧폐광된 관계로 아무런 정화과정 없이 그대로 주변 수계나 토양 및 지
Acquisition of a 24.5% stake
Worth USD162mn/KRW 194.6bn
Starts production from 2014,
expected to secure 9.8mn tons
of ores per year
Iron ore self-supply ratio:
18% 34%
Holds a significant part in
POSCO’s strategy
Include both iron ore mine
development and infrastructure
POSCO look to obtain more
than 600mn tons of iron ore reserv
iron산화물을 가졌다)이다. 이러한 저급의 금속을 상업적으로 이용가능하게 만들고 고급의 금속이 고갈되었을 때 철강산업을 유지할 수 있는 방안을 모색하던 과정에서 reserve사가 설립되었다.
저급 금속을 이용해 보고자 하는 첫 시도는 Minnesota대학 Mines Experiment Station의 Davis 에 의해 만들어진 금속의 upg