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RISS 인기검색어
- 검색키워드
- 저자 : ( Suthanthararajan R ) (검색결과 2 건)
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중소형 사업장에서 발생한 유해/비유해 고형폐기물 관리와 처분
( Rajamani S ),( Suthanthararajan R ),( Ramasami T ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
유해한 범주로 분류된 가죽 분야를 포함하여, 중소형 사업장으로부터의 고형폐기물 처분에 대해서 관심이 증가되고 있다. 200개의 Effluent Treatment Plants (ETPs)와17개의 Common Effluent Treatment Plants (CETPs) 로부터 발생한 유해범주에 속한 탈수 슬러지 200,000ton 의 처분은 인도에서는 중요한 문제 중에 하나이다. 전통적으로 크롬의 50-60%만이 가죽공장 크롬염료 제혁법에 적용되어지며, 그 나머지는 폐수로 배출되어진다. 남 아시아 제혁법은 BCS(Basic Chromium Sulfate)의 형태로 200,000 ton의 크롬이 해마다 사용되며, 약 그 중 80,000 ton의 크롬염은 폐수형태로 배출되어진다. 슬러지 처분문제를 최소화 하는 관점에서, 인도와 다른 남아시아 국가에서는 적절-간단하게 운영되는 크롬 회수 및 재사용 시스템을 개발 및 추진되어졌다. 크롬의 농도가 2-3%인 농도에서 0.5%(Cr)이하로 감소함에 따라, 그 슬러지는 환경부와 산림부 (MoEF) 분류에 의하여 비유해물질로 분류 되어진다. 본 논문은 인도에서 비유해물질 뷴류인 슬러지 및 고형폐기물 뿐만이 아니라 유해범주에 속한 물질에 대해서 commercial scale의 간단하고 자립 가능한 매립처분 방법을 개발 및 채택되는 것에 다루었다. Solid waste disposal from small and medium scale industries including leather sector, which are classified under hazardous category, has become a matter of increasing concern. The disposal of 200,000 tons of dewatered hazardous category sludge generated annually from 200 Effluent Treatment Plants (ETPs) and 17 Common Effluent Treatment Plants (CETPs) is one of the serious problems in India. More than 80% of the tanneries adopt chrome-tanning practice. In traditional chrome tanning practice only 50-60% of the chromium applied is taken by the leather and the balance is discharged as waste. South Asian tanneries use annually 200,000 tons of chromium in the form of Basic Chromium Sulfate (BCS) and out of this about 80,000 tons of chromium salts are discharged as waste. With a view to minimize the disposal problem of sludge, an appropriate, simple and fully operational commercial scale chrome recovery and reuse system was developed and promoted in India and other South Asian countries. Due to the reduction in chromium concentration from the level of 2 to 3% to less than 0.5% as Cr, the sludge is classified as non-hazardous category as per the Ministry of Environment & Forests (MoEF). This paper deals with the simple and viable land disposal methods developed and adopted in India at commercial scale for hazardous category as well as for non-hazardous category sludge and solid wastes.
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( Rajamani S ),( Suthanthararajan R ),( Ramasami T ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
Solid waste disposal from small and medium scale industries including leather sector, which are classified under hazardous category, has become a matter of increasing concern. The disposal of 200,000 tons of dewatered hazardous category sludge generated annually from 200 Effluent Treatment Plants (ETPs) and 17 Common Effluent Treatment Plants (CETPs) is one of the serious problems in India. More than 80% of the tanneries adopt chrome-tanning practice. In traditional chrome tanning practice only 50-60% of the chromium applied is taken by the leather and the balance is discharged as waste. South Asian tanneries use annually 200,000 tons of chromium in the form of Basic Chromium Sulfate (BCS) and out of this about 80,000 tons of chromium salts are discharged as waste. With a view to minimize the disposal problem of sludge, an appropriate, simple and fully operational commercial scale chrome recovery and reuse system was developed and promoted in India and other South Asian countries. Due to the reduction in chromium concentration from the level of 2 to 3% to less than 0.5% as Cr, the sludge is classified as non-hazardous category as per the Ministry of Environment & Forests (MoEF). This paper deals with the simple and viable land disposal methods developed and adopted in India at commercial scale for hazardous category as well as for non-hazardous category sludge and solid wastes.
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