• Title, Summary, Keyword: 생활쓰레기

Search Result 143, Processing Time 0.051 seconds

A Study on Recycling of Waste Polyethylene Film (폐폴리에틸렌 필름의 재활용에 관한 연구)

  • Lee, Hwan-Kwang
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.9 no.1
    • /
    • pp.182-188
    • /
    • 2008
  • The compounds of recycled polyethylene(PE) and fly-ashes were prepared. Polymers used were sorted PE from mixed plastics of household waste and Low Density Polyethylene(LDPE) and Linear Low Density Polyethylene(LLDPE) recycled from the scrap of packaging film plants. Fly-ashes were from the power plant and from the household waste incinerator. The tensile strength of recycled LDPE and LLDPE compounds decreased and the flexural modulus increased with greater amount of the power plant fly-ash. Anthracite fly-ash gave rise to slightly higher tensile and flexural strength of the LLDPE mixtures than bituminous coal fly-ash presumably due to higher content of unburned carbon. The incinerator fly-ash introduced to household waste PE enhanced both tensile strength and flexural modulus of the compounds. When LDPE and household waste PE were used together, the synergistic effect of incinerator fly-ash to household waste PE was offset by reduced crystallization of LDPE due to the filler particle. The compounds of household waste PE and incinerator fly-ash might be applied to structural materials for such as sewage pipe, which reduces the waste treatment cost and conserve the environment and resources.

The Impact of Unit Pricing System on the Demand for Solid Waste Disposal, Food Waste Disposal, and Recyclables (종량제 가격이 생활폐기물, 음식물쓰레기, 재활용품 수거서비스 수요에 미치는 영향)

  • Hong, Seonghoon
    • Environmental and Resource Economics Review
    • /
    • v.24 no.4
    • /
    • pp.747-761
    • /
    • 2015
  • This paper investigates the impact of an increase in unit price of solid waste collection on demand for alternative solid waste disposal types. I control for other variables affecting the demand and employ both community and time fixed effects models in the estimation of each reduced-form demand functions. Estimation results show that an increase in unit price reduces the demand for garbage bag collection services of non-food solid wastes while it increases the demand for food wastes and source-separated recyclables. These results imply that reduction in the demand for non-food solid wastes collection is mainly achieved by increasing the amount of recyclables and food wastes collected. However, it appears that an increase in unit price increases the total amount of solid wastes generated. This suggests that price incentive effects are offset by the decrease in source-reduction efforts because of feedback effects resulting from the increase in recycling, food waste separation, and illegal disposal of wastes.

An Analysis of Food Waste Generation of Residents and Food Waste Resources in Multifamily Housing (음식물쓰레기 자원화를 위한 공동주택 거주자의 음식물쓰레기 배출량 및 자원화 의향에 관한 분석)

  • Oh, Jeong-Ik;Lee, Hyun-Jeong;Seok, Hee-Jean
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.32 no.10
    • /
    • pp.905-915
    • /
    • 2010
  • With rising food waste, the management activities have gained growing attention, and the disposal options, particularly utilization of food waste for energy recovery, become central. This research examines the factors affecting food waste generation and the tendency to resource food waste. The self-administered questionnaire survey was conducted in newly built multifamily housing estates to collect data, and 300 responses were analyzed. The statistical analysis showed that most of the respondents purchased food materials in largely franchised grocery stores and discarded food that had been too long refrigerated to edible. The lifecycle of food consumption was divided into three states - food purchase plan, cooking and food waste collection. Regression analysis was employed to find out the relationships between three stages and food waste generation or tendency to resource food waste. The results described that food waste generation being affected by the stage of food purchase plan (food waste removal conditions) was statistically significant while it's statistically significant that the stage of cooking (prepurchase considerations) influenced the attitude toward food waste resource. The research findings indicated that food is overconsumed, and further many viewed food waste resources as a proactive and integrative mode in the global wave of sustainability.

The Study of Physico-chemcal Characteristics of Municipal Solid Waste (MSW) in Gangwon Area (강원지역 도시폐기물의 물리·화학적 특성 연구)

  • Lee, Keon-Joo
    • Journal of the Korea Organic Resources Recycling Association
    • /
    • v.17 no.2
    • /
    • pp.101-111
    • /
    • 2009
  • In this study, the physico-chemical characteristics of municipal solid waste (MWS) which was treated in gangwon area were investigated. It is necessary to measure the characteristics of municipal solid waste for build a waste treatment and RDF facility and for data-base and total managing of the landfill. It was found that the average density of solid wastes is in the range of $101.8{\sim}199.8kg/m^3$. This MSW was composed of 30.7% of food wastes, 36.3% of papers, 15.8% of plastics & vinyls, 1.9% of textiles, 3.2% of wood and 1.5% of rubber & leathers respectively. Most of MSW are composed of food, paper and plastic waste and the combustible waste is more than 90%. For three components, moisture is 44.6%, combustible component is 47.7% and ash is 7.7% respectively. The chemical elements are carbon, oxygen, and hydrogen on the dry basis of wastes. The low heating value of the MSW measured by calorimeter was obtained as 2,631 kcal/kg, and the high heating value of the MSW was obtained as 3,310 kcal/kg.

  • PDF

The study of the Composition and Physico-chemcal Characteristics of MSW in urban and gangwon area (수도권 및 강원지역 도시고형폐기물의 조성과 물리·화학적 특성연구)

  • Lee, Keon-Joo
    • Journal of the Korea Organic Resources Recycling Association
    • /
    • v.16 no.3
    • /
    • pp.65-74
    • /
    • 2008
  • In this study, the composition and physico-chemical characteristics of municipal solid waste (MWS) which was treated in four different area were investigated. It is necessary to measure the characteristics of MSW to build a waste treatment and Refuse Derived Fuel (RDF) facility, the data-base and total managing of the landfill. It was found that the average density of solid wastes is in the range of $78.15-199.8kg/m^3$. This MSW was composed of 8.87% of food wastes, 38.8% of papers, 34.12% of plastics & vinyls, 7.16% of textiles, 0.96% of wood, 1.3% of rubber & leathers and others, respectively. Most of MSW are composed of food, paper and plastic waste and more than 94% was combustible waste. For three components, moisture is 17.38%, combustible component is 69.03% and ash is 6.24%. The chemical element has the high order of carbon, oxygen, hydrogen on the dry basis of wastes. And the low heating value of the MSW which is measured by calorimeter is calculated as 2973.8 kcal/kg and high heating value of the MSW is calculated as 5209.94 kcal/kg.

  • PDF

집단주거단지의 음식물 쓰레기 감량화 설비 무용지물로 변해

  • 대한설비건설협회
    • 월간 기계설비
    • /
    • /
    • pp.89-101
    • /
    • 2000
  • 정부의 쓰레기 분리수거 자원화 및 재활용 정책에 적극 대처하고 쾌적한 생활환경과 음식물 쓰레기 수거방식 개선의 일환으로 도입된 집단주거단지의 음식물 쓰레기 감량화 설비(일명 고속발효기)가 애초의 취지와는 악취유발, 과다한 관리비 부과, 관리미숙 등의 부작용으로 무용지물이 되고 있어 국가적인 낭비를 초래하고 있다.

  • PDF

A Study on Feasibility and Applicability of Pneumatic Waste Collection System (쓰레기 수송관로 방식의 적용사례 및 실용에 관한 연구)

  • 민병균;이재영;최상일
    • Journal of Korea Soil Environment Society
    • /
    • v.2 no.1
    • /
    • pp.109-117
    • /
    • 1997
  • The dust chute was a part of equipment in apartment which have been settled down as new residential style in this country since 1960s. However, the dust chute was destructed by results of social discussion, and it ended up old remains which cannot be found in new towns. Nowadays, chute was substituted a collecting system from extra collecting sites which were prepared near residential area. This phenomenon was caused by the poor separating collection. Since the early part of 1995, the whole vocal operating the volume-base charge system has been placed as the institution capable of recycling and separating collection of residential wastes in this country. People pursue the residential quality which is suitable to the Greenround period. Such a diverse effort corresponding to the social change can be also accomplished in the field of waste collecting transportation. In this paper, the local heating system and waste combustion site and hollow are already applied to the new residential area in the form of housing development. After investigating of the waste collecting transportation method in other countries related to such facilities, this paper represents the feasibility and applicability of pneumatic waste collection system which is used practically in the new housing complex and large facilities in other countries.

  • PDF

A Study on the Perception and Attitude towards Food Waste Reduction by the Elementary School Pupils (부산지역 초등학생들의 음식물쓰레기 감량에 대한 인식 및 태도 연구)

  • 김소희;류은순
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.31 no.6
    • /
    • pp.1155-1162
    • /
    • 2002
  • Food waste in school foodservices is an important factor in managing expense or evaluating the acceptance of served meals and a serious environmental hazard factor in all countries. In this study, the perception and attitude towards food waste reduction and the recognition of environmental pollution of students from elementary school foodservices in Busan, Korea were investigated. The questionnaire was responded by 519 students (boy: 255, girl: 264) in the third and sixth grades. School lunch programs were proved to contribute to the improvement of students' food intake habits. The perception and attitude towards food waste reduction of the third grade students (3.61/3.73) were significantly higher than those of the sixth grade students (3.46/3.59) (P<0.01). Food waste education made a significant impact on the perception and attitude on food waste (p<0.01). When dislike food was supplied the students having the higher perception and attitude towards food waste reduction ate it more than those having the lower perception and attitude. The major reason for plate waste was shown to be influenced by the taste and amount of foods supplied in school lunch programs. Most of students recognized that food waste pollution (4.22) was one of the severest problems among the environmental pollutions, followed by air (4.13), tap water (4.09) soil (3.78), noise (3.55) pollution. The students separated the garbage in the house (72.6%) better than in school and the outside (55.2%). The perception of food waste was positively correlated with the attitude toward reduction of food waste and the recognition of environmental pollution (p<0.01). The attitude toward reduction of food waste was also positively correlated with meal quantity taken (p<0.01).

기획특집-쓰레기 자동집하시설 시스템

  • Korea Mechanical Construction Contractors Association
    • 월간 기계설비
    • /
    • no.6
    • /
    • pp.36-48
    • /
    • 2006
  • 인구증가와 급속한 산업화에 따른 대량생산, 다량소비로 인해 쓰레기의 발생량은 지속적으로 증가하고 있으며 생활수준의 향상으로 쓰레기의 질적 특성도 변화되고 있다. 정부는 분리수거로 쓰레기 감량화 유도를 위해 지난 ’95년부터 쓰레기 종량제를 전국적으로 실시하고 있으나 수거∙운반단계에서 발생하는 문제는 크게 개선되지 못하고 있다. 따라서 쓰레기 방치에 따른 악취, 미관저해 등의 환경 위생적인 측면과 교통 안전 등의 문제를 해결할 수 있는 새로운 개념의 수거∙운반방식 도입의 필요성이 대두되고 있다. 쓰레기 자동집하시설은 지하관로를 통해 쓰레기를 수거하는 방식의 최첨단 시스템으로 지상에서 쓰레기를 볼 수 없는 쾌적한 주거환경 조성 및 기존의 수거∙운반 단계의 단점을 해결한 쓰레기 수거 시스템이다. 이미 유럽 및 일본 등에서 도입되어 운영되고 있는 쓰레기 자동집하시스템은 삶의 질 향상과 함께 에서 운영비 절감 등 경제적인 면에서 우수성이 검증된 바있다. 국내에 쓰레기 자동집하시설이 도입된지 10여년이 지났으나 그동안 주상복합 및 병원, 오피스텔 등에만 적용될 정도로 시장이 매우 미미했었다. 최근들어 쾌적한 주거환경에 대한 관심이 높아짐에 따라 지자체 및 발주처가 확대적용할 예정이어서 새로운 시장으로 떠오르고 있다. 최근 토지 공사가 성남 판교 집하시설과 용인흥덕지구 집하시설 입찰에 들어갔고, 주공도 광명소하지구 집하시설을 입찰에 붙였는데 건설업계의 관심이 집중되었다. 이와 관련 본지는 쓰레기자동집하시설 도입 필요성 및 원리, 국내 적용 현황 등에 관해 자세히 알아보고, 우양기건(주)(대표 강석대)가 인천광역시 도시개발공사로부터 분리발주 받은 송도4공구 1, 2단지 쓰레기관로수송설비공사의 시공사례를 알아본다. 향후 쓰레기 관로수송설비공사는 주택 단지 형성시 반드시 필요한 공사중의 하나이며 지자체로부터 분리발주될 가능성이 높은 공사 중의 하나이므로 우리 설비건설업계가 관심을 가져야할 분야이다.

  • PDF