• 가정과삶의질연구
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• 제16권4호
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• pp.197-220
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• 1998

This study is conducted to examine the ways to reduce the garbage amount by effective recycling food wastes in the cooking. The data is collected from 864 housewives who live in Seoul/Sungnam/Choongju by using questionnaires from 24 November 1997 to 5 January 1998. The results are as follows; The level of their needs of reusing food wastes in the cooking is high but the level of their participation and its satisfaction to reuse housewives is low. Especially they take part in reusing the garbage in pre-treatment less than edibile plate wastes. These factors result from lacking of their consciousness and knowledge of methods to reuse food wastes. Therefore it is said that consumer should make an effort themselves to participate in reusing food waste researcher should search the way to efficiently reuse the food waste and government should found the policy to provide information and education program for reusing food waste. The more seriously they perceive food waste reuse the mo e they want the way to accelerate food waste reuse by consumer researcher and government.

• 무역학회지
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• 제46권5호
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• pp.213-230
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• 2021

China's e-waste enterprises can decompose 150 million sets of e-waste every year, but in fact, only about 50% of the e-waste goes into formal recycling due to the informal recycling of individual small businesses. The purpose of this paper is to put forward the method for users to improve the reuse times through regular e-waste recycling enterprises. This paper constructs the evaluation factors of reuse logistics service through prior research. Exogenous variables are mainly composed of the management system, economics, resources, policies, social perspectives, and service quality. In addition, the authors choose intention to reuse as an endogenous variable. A total of 335 questionnaires were collected to conduct the research with the structural equation modeling. The results reject the hypothesis that economics, resources, and social perspectives have a positive impact on reuse. On the contrary, management systems, policies, and service quality have a positive impact on reuse. Implications were suggested in the last part of the research.

• 한국물환경학회지
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• 제22권2호
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• pp.308-313
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• 2006

Charicteristics of piggery waste and treatment processing sludges for reuse were investigated. If it was thoroughly regulated in disinfectants, antibiotic substances and heavy metals, raw piggery waste can be gratified in criteria for fermentative compost (liquid) for flowers cultivation. Also, Because it is satisfied with various criteria of heavy metals and fertilizer contents for reuse except water content, primary pre-treatment sludge is very good material for composting. If provated goods on heavy metals are used in coagulation & dewatering process, coagulation & dewatering sludges are suitable for criteria of special waste regulation and by-product compost. This study proves that, if they are accomplished with suitable composting and mature process, piggery waste and processing sludges are free from microbiological problems as well as criteria of composting.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회
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• pp.1245-1252
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• 2010

Many industrialized countries are confronted with a difficulty about reuse of closed waste landfill. facilities. Especially, the demand of closed waste landfill maintenance and reuse nearby urban area has been increased, because of the shortage of usable land and extend of urban area. For the safe reuse of closed waste landfill, the most important check point is the effect of waste landfill on environment abound them. However, the non-sanitary closed waste landfill generally have no leachate lining system, therefore, the in-situ lining system such as sheet-pile, and vertical slurry wall etc. was needed to prevent the leachate outgoing from the waste landfill. In this paper present the case history of performance evaluation of vertical slurry wall by tracer tests.

• 전기학회논문지P
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• 제56권2호
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• pp.65-73
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• 2007

In this study, the pulse charger and voltage regulator are proposed that can reuse the waste lead acid battery. The first we develop the voltage regulator that can reuse the waste lead battery. And the pulse current is applied to the terminal of the waste lead acid battery. The voltage regulator is available principle of the pulse current which can reduce the sulfate to incipient material such as Pb and PbO2. Therefore the internal resistance of the lead acid battery is decreased, the performance of the lead acid battery is improved and the durability is prolonged. The second we develop the pulse charger using the voltage regulator. The pulse charger uses the switch mode of the forward convert method. The pulse charger maintain the constant voltage in state removing the lead acid battery and when it connected the pulse charger, it is converted the charge mode of the constant current immediately. It continues the rapid charge until the full state of the lead acid battery. After that the pulse charger is converted to the charge mode of constant voltage automatically, and then it continues the normal charge. The experiment results show that the effectiveness of the voltage regulator and pulse charger such as the good performance and the prolonged durability in lead acid battery of the small and large capacity.

• 한국지반환경공학회 논문집
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• 제2권1호
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• pp.15-22
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• 2001

고형화 폐기물의 처분에 대한 환경 위해성 평가의 핵심은 화학적 용출특성을 파악 후, 현장의 환경조건하에서 유해물질이 얼마나 주변환경으로 유출되는가를 예측하여 그 위해도를 산정하고, 그 위해도가 환경적으로 허용가능한 지를 판단하는 데 있다. 본 논문에서는 고형화폐기물을 매립지에 처분하거나 재활용시 다양한 현장조건하에서의 환경위해성을 평가하는 체계를 용출의 두 가지 극한적 경우에 입각하여 수립하였다. 수립된 위해성평가체계의 각 경우에 따른 폐기물 특성변수를 결정할 수 있는 두 종류의 특성평가기법을 개발하고, 시멘트 고화 처리된 도시쓰레기 소각재의 매립처분 현장에 적용하여 검증하였다.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2017년도 춘계학술논문요약집
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• pp.348-349
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• 2017

• 유기물자원화
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• 제11권2호
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• pp.74-85
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• 2003

본 연구는 폐가전제품의 회수 및 처리 현황을 파악하고 이를 통해 재이용 및 재활용 활성화를 위한 기초 자료를 제공하는데 목적이 있다. 대형폐기물중 가전제품의 배출량은 냉장고가 30.7%, TV가 37.8%, 세탁기가 22.9%, 에어컨이 8.5%이며 품목별 회수량은 냉장고가 38.7%, TV가 14.3%. 세탁기가 36.8%, 에어컨이 0.3%로 나타났다. 회수주체별 회수량은 지자체가 46.2%, 생산자대리점 및 물류센타가 49.7%, 재활용센터가 4.1%이며, 폐가전제품의 처리 현황은 재이용이 17%, 유가물 회수가 65%, 매립 및 소각이 18%로 밝혀졌다. 대형폐기물중 폐가전제품의 재활용을 촉진시키기 위해서는 먼저 재이용을 민간 재이용 및 재활용 조직을 활성화 할 수 있는 제도를 확립하는 것이 중요하다고 본다. 또한, 생산자에게 생산단계에서의 제품에 대한 책임을 강화 및 폐가전제품에 대한 회수 체계의 확립이 필요하다. 가전제품의 재활용 혹은 적절한 처리에 필요한 재원으로 활용될 수 있는 폐기물예치금제도의 개선이 필요하며, 제품의 내구연한 연장을 유도할 수 있도록 내구연한의 범위를 정해서 융통성있게 운영함이 필요하다. 마지막으로 폐기물 발생억제 측면에서의 소비패턴을 유도할 수 있도록 소비자를 대상으로 한 교육 홍보가 지속적으로 이루어져야 하고, 대형폐기물의 회수와 처리장소 및 처리 비용의 일부는 자치단체가 부담하고 민간대형업체가 파쇄 재활용처리하는 방식의 도입이 필요하다.

• 한국환경농학회지
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• 제30권2호
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• pp.125-131
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• 2011

BACKGROUND: Reuse of waste nutrient solution for the cultivation of crops could lead to considerable conservation of water resources, plant nutrients, and water quality. Therefore, this study was conducted to evaluate the potential for reducing the use of chemical fertilizer in Chinese cabbage cultivation via the reuse of waste nutrient solution as an alternative irrigation resource. METHODS AND RESULTS: The nutrients supplied in the waste nutrient solution consisted of 1474.5, 1285.1, 991.6, and 872.6 mg/L for $K+$, ${NO_3}^-$, $Ca^{2+}$ and ${SO_4}^{2-}$, respectively. At 56 days after transplanting (DAT), the leaf length of Chinese cabbage plants irrigated with the waste nutrient solution treatment was significantly higher than that of plants irrigated using a conventional groundwater treatment. Additionally, the leaf width, fresh weight and dry weight of the plants irrigated with the waste nutrient solution were similar or greater than that of plants irrigated with a conventional treatment. Furthermore, the growth of plants treated with the waste nutrient solution +25% fertilizer was the highest among all tested treatments. CONCLUSION(s): These results indicate that the waste nutrient solution can be used as an alternate water resource for crop cultivation. In addition, it can contribute to reduce the fertilizer and to obtain the higher crop yield of Chinese cabbage.

• 방사성폐기물학회지
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• 제15권2호
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• pp.181-189
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• 2017

방사성금속폐기물의 관리 옵션들을 안전성, 경제성, 작업자 피폭, 부피 감용 등의 선별 기준을 적용하여 비교 평가하였다. 원전 해체로부터 발생하는 금속폐기물의 관리 옵션에는 무구속 방출, 제한적 재사용, 그리고 직접 처분이 있다. 고려된 각각의 옵션들은 금속폐기물의 절단과 용융에 의한 부피감용을 수반한다. AHP기법을 적용하여 각 옵션들의 순위를 부여하였다. 방사성금속폐기물을 용융하여 금속 잉곳을 제조한 후 제한적 재이용 또는 무구속 방출하는 방안이 가장 효율적인 옵션으로 도출되었다.