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( Masataka Hanashima ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
개방형 매립지와 밀폐형 매립지는 각 지역 위치와 각 도시가 처한 상황에 따라 다양하게 건설될 것이다. 최종처분지의 저장형태는 재활용의 향상시키는 방향으로 요구되어지며, 지역 주민의 요구에 응하여, 부적절한 매립지는 많은 생산품을 증가시키는 것으로 수정될 것이다. 지역 주민이 용납할 수 있을 만큼 적절한 매립지는 순환형 사회 제도의 효과적인 발전의 기틀을 제공하게 될 것으로 판단된다.
INVESTIGATION ON LEACHING OF ORGANIC SUBSTANCES AND INORGANIC SALTS FROM WASHED AND UNWASHED ASH
( Fumihiko Misumi ),( Masataka Hanashima ),( Sotaro Higuchi ),( Noboru Katsukura ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
Pretreatment systems of Solid-Waste prior to landfilling are currently proposed for acceleration of landfill-site stabilization. In this study, landfill simulation experiments have been carried out, to describe the landfill behavior of incineration residues after water- pretreatment. As result, both organic contents and salt contents in leachate from pretreated residues were found to be sufficiently lower than from untreated.
중국, 한국, 일본의 도시고형폐기물 매립지에서의 침출수 관리 시스템
( Sotaro Higuchi ),( Masataka Hanashima ),( Jisheng Long ),( Yukihisa Sakata ),( Nam-hoon Lee ),( Wenlong Xu ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
본 연구의 목적은 아시아의 기후와 매립되는 폐기물의 성상 따른 적절한 매립지 관리방법을 건설하기 위한 것이다. 이 연구의 시작부분에서 매립지, 폐기물 관리 및 매립지 관리와 같은 매립지의 특성을 아시아 국가와 유럽국가 비교를 실시했다. 각각의 국가들은 매립지 관리에 대한 각국의 기본적인 개념을 가지고 있어, 매립지 liner구조물들은 다르게 건설되었다. 아시아의 고형폐기물 소각율이 높아짐에 따라, 강우량 등과 같은 여러 기후조건이 비슷한 중국, 일본, 한국 같은 아시아 국가들은 특히 기술 교환으로 각 국가와 함께 협력을 해야 할 것이다. The objective of this study is to construct a suitable landfill management method for Asian climate and quality of landfilled waste. In the beginning of this study, comparison of the Asian countries and European countries in their characteristics such as land, waste management and landfill management. Each country has own basic concept on the landfill management, therefore liner structures of the landfill differ from each other. With solid waste incineration rate rising in Asia, it could be concluded that Asian countries such as China, Korea and Japan, which have similar climate in precipitation amount and so on, should corporate each other especially in technical exchange.
세척 및 미세척 재로부터 유기물질 및 무기염류의 용출에 관한 조사
( Fumihiko Misumi ),( Masataka Hanashima ),( Sotaro Higuchi ),( Noboru Katsukura ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
매립지의 조기 안정화를 위하여 매립에 앞서 폐기물을 전처리하는 시스템이 최근 제안되고 있다. 본 연구에서는 수처리 후 소각재의 매립거동을 나타내기 위하여 매립지 모사 실험이 행해졌다. 그 결과, 전처리된 잔재물의 침출수 중의 유기물 함량과 염류 함량은 처리되지 않은 것 보다 훨씬 더 낮은 것으로 나타났다. Pretreatment systems of Solid-Waste prior to landfilling are currently proposed for acceleration of landfill-site stabilization. In this study, landfill simulation experiments have been carried out, to describe the landfill behavior of incineration residues after water-pretreatment. As result, both organic contents and salt contents in leachate from pretreated residues were found to be sufficiently lower than from untreated.
LEACHATE MANAGEMENT SYSTEM ON MSW LANDFILL SITE IN CHINA, KOREA AND JAPAN
( Sotaro Higuchi ),( Masataka Hanashima ),( Jisheng Long ),( Yukihisa Sakata ),( Nam-hoon Lee ),( Wenlong Xu ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
The objective of this study is to construct a suitable landfill management method for Asian climate and quality of landfilled waste. In the beginning of this study, comparison of the Asian countries and European countries in their characteristics such as land, waste management and landfill management. Each country has own basic concept on the landfill management, therefore liner structures of the landfill differ from each other. With solid waste incineration rate rising in Asia, it could be concluded that Asian countries such as China, Korea and Japan, which have similar climate in precipitation amount and so on, should corporate each other especially in technical exchange.
INFLUENCE OF LANDFILLED CHEMICALY-TREATED FLY ASH ON LEACHATE QUALITY
( Kentaro Miyawaki ),( Takayuki Shimaoka ),( Masataka Hanashima ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
In recent times in Japan, most municipal solid waste has been incinerated. Therefore, most landfill waste is incinerator residue and incombustible crushed waste. Incinerator residue can be classified as either incinerator bottom ash or fly ash. As fly ash contains considerable amounts of heavy metals, it is landfilled after the legally-required stabilizing treatment. As a result, heavy metal leaching from treated fly ash is inhibited. However, it is not known what influence the co-disposal (mixed disposal) of bottom ash, crushed waste and fly ash has on the leachate. In this study, we have continued to experiment with two types of chemically stabilized fly ash using a large-scale lysimeter that simulates landfill co-disposal, and measured leachate quality, temperature and gas composition over several years. In this experiment, we used untreated fly ash, and both organic and inorganic chemically-stabilized fly ash. Mixed waste was made from bottom ash, fly ash, crushed waste and compost. Leachate quality from the lysimeter with the untreated fly ash (Lysimeter A), the lysimeter with organic chemically-stabilized fly ash (Lysimeter B) and the lysimeter with inorganic chemically-stabilized fly ash (Lysimeter C) were measured. Experimental results show that the extent of heavy metal leaching depends on pH, ORP, and salt concentrations. Heavy metal effluence abounds in the early periods of landfilling and that the rate of effluence was small.