http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 황대규 (검색결과 91 건)
- 무료
- 기관 내 무료
- 유료
-
황대규 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
For over two decades, the landfill policy of early industrialized countries has been based on two key approaches: close/remediate dump sites and build lined sanitary landfills. For developing countries, this traditional approach is too expensive to solve landfill problems on a national scale. This paper presents an alternative landfill policy and corresponding landfill design concept practical for developing countries. It is universal to design sanitary landfills with a bottom liner system. Although bottom-lined landfills are protective, its cost is too high for general application in developing countries. A systematic application of vertical wall containment with enhanced leachate drain system offers dramatic cost saving as well as equivalent performance. This concept, called Submerged Counterflow Sink (SCS), may be adapted to various site conditions, affording sanitary landfills for 50 to 80% of the lined landfill cost. The most effective application of the SCS in developing countries is for conversion of large dump sites to sanitary landfills. In this application, the SCS can achieve all project objectives for only 30% to 50% of the traditional approach involving closure of the dump, remediation of the polluted area and construction of a new landfill. The major impediment to application of the SCS is regulatory, because most countries have rules requiring the bottom liner system for landfills. Fortunately, some countries such as the US, Japan, and Korea have “performance-based” design rule allowing other methods with performance equivalent to the bottom liner system. To enhance the environmental quality associated with land disposal of wastes quickly, the developing countries should consider two approaches, conversion of dump sites to sanitary landfills and adoption of the performance-based design rule.
-
-
-
-
-
-
-
-
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
