• Title, Summary, Keyword: Municipal Solid Waste(MSW)

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A Treatment and Construction Use of Municipal Solid Waste Ash (도시고형 폐기물 소각재의 무해화 처리와 응용)

  • Lee, Jae-Jang;Shin, Hee-Duck;Park, Chong-Lyuck
    • Journal of Industrial Technology
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    • v.21 no.B
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    • pp.45-49
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    • 2001
  • Many cities and provinces are rapidly depleting landfill spaces. As the result, some municities have adopted to incinerate their municipal solid waste(MSW). The motive behind the choice is that incineration significantly reduces the volume of solid waste in need of disposal, destroys the harmful organic compounds that are present in MSW, and provides an attractive source of alternative energy. Conclusively, the generation of MSW ash is expected to increse in the furture. However, disposing the MSW ash in landfills may not always be an environmentally or an economically feasible solution. This paper addresses the various issues associated with MSW ash and its possible use in construction applications.

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The review of municipal solid waste management in Nigeria: the current trends

  • Iorhemen, Oliver T.;Alfa, Meshach I.;Onoja, Sam B.
    • Advances in environmental research
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    • v.5 no.4
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    • pp.237-249
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    • 2016
  • The management of municipal solid waste (MSW) is essential for every community; and, it is currently a major challenge in Nigeria. This paper provides an overview of the current MSW management trends in Nigeria and proposes new sustainable MSW management systems. Across Nigerian cities, MSW management is characterized by inefficient collection and transportation to disposal sites. Collection services do not reach some unplanned areas and slums due to poor street network. Even some planned areas are not reached by collection services. The informal sector contributes to waste collection, resource recovery and recycling; however, their activities are not recognized by the governments. Markets exist for recovered materials but more efforts need to be geared towards intensive recovery of materials and expansion of these markets. Despite the high proportion of putrescible matter in MSW, the only form of treatment commonly used currently is open burning for volume reduction. The high organic fraction presents a great opportunity for composting and anaerobic digestion. Ultimate disposal is currently done in open dumpsites. This needs to be upgraded to engineered landfills that are properly sited and adequately operated by well trained personnel. There is an emerging waste stream of concern, electronic-waste (e-waste), that requires urgent sustainable management as e-waste are currently co-disposed with other waste streams or burnt in the open posing detrimental health impacts.

Prediction of greenhouse gas emission from municipal solid waste for South Korea

  • Popli, Kanchan;Lim, Jeejae;Kim, Hyeon Kyeong;Kim, Young Min;Tuu, Nguyen Thanh;Kim, Seungdo
    • Environmental Engineering Research
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    • v.25 no.4
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    • pp.462-469
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    • 2020
  • This study is proposing a System Dynamics Model for estimating Greenhouse Gas (GHG) emission from treating Municipal Solid Waste (MSW) in South Korea for years 2000 to 2030. The government of country decided to decrease the total GHG emission from waste sector in 2030 as per Business-as-usual level. In context, four scenarios are generated to predict GHG emission from treating the MSW with three processes i.e., landfill, incineration and recycling. For prior step, MSW generation rate is projected for present and future case using population and waste generation per capita data. It is found that population and total MSW are directly correlated. The total population will increase to 56.27 million and total MSW will be 21.59 million tons in 2030. The methods for estimating GHG emission from landfill, incineration and recycling are adopted from IPCC, 2006 guidelines. The study indicates that Scenario 2 is best to adopt for decreasing the total GHG emission in future where recycling waste is increased to 75% and landfill waste is decreased to 7.6%. Lastly, it is concluded that choosing proper method for treating the MSW in country can result into savings of GHG emission.

Modeling the socio-economic waste generation factors: A case study of Faridabad (Haryana State, India)

  • Satija, Ajay;Singh, Dipti;Singh, Vinai Kumar
    • Proceedings of the Jangjeon Mathematical Society
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    • v.21 no.4
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    • pp.689-701
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    • 2018
  • Municipal Solid Waste Management is an extremely complex task especially in Metropolitan cities. An accurate planning is required for its sustainable development. Such planning requires waste generated data as well as waste collected data. A number of socioeconomic factors are responsible for its generation. The aim of present research is to establish various significant correlations between socioeconomic factors such as population, urban population, literacy rate, per capita income and municipal solid waste (MSW) by regression analysis. The study is based on waste collected data of fastest growing metropolitan city Faridabad (Haryana State, India). The significant correlations between socioeconomic factors and MSW have been validated by p-value (< 0.05), high value of adjusted $R^2$ and minimum values of root mean square error (RMSE). Further the time series analysis has been performed to forecast the waste (collection) up to year 2019. The present study would be extremely beneficial for waste management authorities as well as policy makers of Municipal Corporation of Faridabad (MCF).

A Study on the Regionalization of the Municipal Solid Waste Management System Using a Mathematical Programming Model (수리계획모형을 활용한 대도시 폐기물 관리 시스템의 광역화 운영 계획에 관한 연구)

  • 김재희;김승권;이용대
    • Korean Management Science Review
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    • v.20 no.1
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    • pp.65-76
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    • 2003
  • The increased environmental concerns and the emphasis on recycling are gradually shifting the orientation of municipal solid waste (MSW) management. This paper is designed to evaluate regionalization programs for MSW management system. We developed a mixed intiger network programming (MIP) model to identify environment-friendly, cost-effective expansion plans for regionalization scenarios considered. The MIP model is a dynamic capacity expansion model based on the network flow model that depicts the MSW management cycle. In particular, our model is designed to determine the optimal form of regionalization using binary variables. We apply this model to assess the regionalization program of Seoul Metropolitan City, which includes three scenarios such as 1) districting, 2) regionalization with neighboring self-governing districts, and 3) g1obalization with all districts. We demonstrate how our model can be used to plan the MSW system. The results indicate that optimal regionalization with nearby self-governing districts can eliminate unnecessary landfills and expansions if jurisdictional obstacles are removed.

Estimation of Greenhouse Gas Reduction by Resource and Energy Recovery of Municipal Solid Waste (MSW) (생활폐기물의 재활용과 에너지화에 따른 온실가스 감축량 산정)

  • Kwon, Yuree;Chang, Yoon;Jang, Yong-Chul
    • Journal of Korea Society of Waste Management
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    • v.35 no.6
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    • pp.525-532
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    • 2018
  • This study examined the potentials for greenhouse gas reduction by material recovery and energy recovery from municipal solid waste between 2017 and 2026 in Daejeon Metropolitan City (DMC), which is trying to establish a material-cycle society by constructing a waste-to-energy town by 2018. The town consists of energy recovery facilities such as a mechanical treatment facility for fluff-type solid refuse fuel (SRF) with a power generation plant and anaerobic digestion of food waste for biogas recovery. Such recycling and waste-to-energy facilities will not only reduce GHGs, but will also substitute raw materials for energy consumption. The emissions and reduction rate of GHGs from MSW management options were calculated by the IPCC guideline and EU Prognos method. This study found that in DMC, the decrease of the amount of MSW landfilled and the increase of recycling and waste-to-energy flow reduced GHGs emissions from $167,332tonCO_2\;eq/yr$ in 2017 to $123,123tonCO_2\;eq/yr$ in 2026. Material recycling had the highest rate of GHG reduction ($-228,561tonCO_2\;eq/yr$ in 2026), followed by the solid refuse fuels ($-29,146tonCO_2\;eq/yr$ in 2026) and biogas treatment of food waste ($-3,421tonCO_2\;eq/yr$ in 2026). This study also shows that net GHG emission was found to be $-30,505tonCO_2\;eq$ in 2017 and $-105,428tonCO_2\;eq$, indicating a great and positive impact on future $CO_2$ emission. Improved MSW management with increased recycling and energy recovery of material waste streams can positively contribute to GHGs reduction and energy savings. The results of this study would help waste management decision-makers clarify the effectiveness of recycling MSW, and their corresponding energy recovery potentials, as well as to understand GHG reduction by the conversion.

RDF(Refuse Derived Fuel) Generation using MSW(Municipal Solid Waste) (생활폐기물을 이용한 RDF(Refuse Derived Fuel) 발전)

  • Jang, Jik-Sun;Jo, Jae-Beom
    • 한국신재생에너지학회:학술대회논문집
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    • pp.448-451
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    • 2008
  • For resource Recycle society, the Ministry of Environment is recently propeling the introduction of MSW(Municipal Solid Waste) pretreatment facilities(MBT) from advanced country such as Germany. On the basis of this, The Ministry of Environment plans to expand all over the country after the adaption of wide area style(Sudokwon landfill : 200 ton/day), urban communities style(Bucheon City : 90 ton/day), Semi-urban(Gangreung City : 150 tons/a day), farm village style (Buan : 30 ton/day).

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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
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    • v.17 no.2
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    • pp.101-111
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    • 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.

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Characterization of household solid waste and current status of municipal waste management in Rishikesh, Uttarakhand

  • Rawat, Suman;Daverey, Achlesh
    • Environmental Engineering Research
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    • v.23 no.3
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    • pp.323-329
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    • 2018
  • The municipal solid waste (MSW) management system in one of the Class II Indian cities i.e. Rishikesh was studied and analysed to identify the key issues in solid waste management in the city. A total of 329 solid waste samples from 47 households were collected to characterize the household solid waste (HSW). The average (HSW) generation rate was 0.26 kg/c/d and it was composed of organic waste (57.3%), plastics (14%), paper (10.9%), and glass and ceramic (1.3%) and other materials (16.5%). There was an inverse relationship between household waste generation rate and family size (p < 0.05). The MSW management system practiced in Rishikesh is unsound. There is no waste segregation at source, no provisions of composting and no recycling by formal sector. The collection and transportation of waste is inadequate and inappropriate. Collected waste is dumped in open dumping site without scientific management. Following are some recommendations for developing a sustainable solid waste management system in Rishikesh city: (1) sensitize people for segregation at source; (2) promote reduction, reuse and recycling of wastes; (3) promote community based composting; (4) provision for 100% door to door collection and; (5) formalize the informal sectors such as rag pickers and recycling industries.

The Effect of the MSW-RDF Power Generation and Tipping Fee Sharing in RDF Project (RDF발전효과와 사업비 분담방안)

  • Choe, Gap-Seok;Choe, Yeon-Seok;Kim, Seok-Jun;Gwon, Yeong-Bae
    • 연구논문집
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    • pp.5-13
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    • 2002
  • This paper deals with the result of an analysis on the effect of the power generation by municipal solid waste(MSW)-refuse derived fuel(RDF) and the introduction of tipping fee sharing between RDF manufacturing and power generation project. As a model case for the MSW generated at small and medium cities in our country, an analysis of the RDF power generation and Tipping fee sharing shows that 1) MSW amount of 7,800* $10^3 $t/y could produce 1,950*$10^3$t/y of RDF 2) Electric power generated by MSW-RDF could supply 290,000 households/year and 98,548 C-t/y of $CO_2$ could be reduced. 3) Tipping Fee should be shared by the considering of the contents of project of both side between RDF Production and power generation.

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