• Title/Summary/Keyword: Municipal solid waste

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Drying methods for municipal solid waste quality improvement in the developed and developing countries: A review

  • Tun, Maw Maw;Juchelkova, Dagmar
    • Environmental Engineering Research
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    • v.24 no.4
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    • pp.529-542
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    • 2019
  • Nowadays, drying methods for municipal solid waste quality improvement have been adopted in the developed and developing countries to valorize wastes for a renewable energy source, reduce dependency on fossil fuel and keep safer disposal at landfills. Among them, biodrying, biostabilization, thermal drying and solar drying are the most common. Drying of municipal solid waste could offer several environmental and economic benefits. Therefore, this review highlighted the drying methods for municipal solid waste quality improvement around the world and compared them based on the reduction of moisture, weight and volume of municipal solid wastes against drying temperature and time by using statistical analysis. It was observed that the drying temperature of different drying methods accounted for 115 ± 40℃ for thermal drying, 59 ± 37℃ for solar drying, 55 ± 15℃ for biodrying and 58 ± 11℃ for biostabilization. Among the drying methods, thermal drying provided the shortest drying time. The moisture reduction, weight reduction, volume reduction and heating value increase of municipal solid waste could vary with drying temperature and time. Finally, the benefits and drawbacks of different drying methods were specified, and recommendations were made for the future efficient drying.

Systematic investigation of heavy metals from MSWI fly ash and bottom ash samples

  • Ramakrishna., CH;Thriveni., T;Ahn, Ji Whan
    • Journal of Energy Engineering
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    • v.26 no.4
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    • pp.35-44
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    • 2017
  • Disposal of municipal solid waste has become a major problem in many countries around the world. As landfill space for the disposal of ash from Municipal Solid Waste Incineration (MSWI) becomes scarce, numerous reports and researches address the various environmental issues about the municipal solid waste incineration waste management and other particulate matters with the range of 10 ~ 2.5. Although in many developing and industrialization countries landfill with the disposal of municipal solid waste, open incineration has become a common practice. Large municipal waste incinerators are major industrial facilities and have the potential to be significant sources of environmental pollution. Despite the significant volume reduction from incineration, waste recycling is important to ensuring the future welfare of mankind. The main goal of the present work is the physical and chemical characterization of the local incineration bottom ash towards its eventual re-utilization. In this paper, we reported the studies on physical and chemical characteristics of municipal solid waste incineration (MSWI) fly ash and bottom ash containing particulate matter whose particulate sizes are lower than $PM_{10}$, $PM_{2.5}$ and heavy metal were investigated.

Application of Paper and Paperboard Packaging for the Environmental Issues in U.S.A and E.U (환경을 고려한 선진국의 지.판지 포장재 적용 추세)

  • Kim, Jae-Neung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.3 no.2
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    • pp.33-42
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    • 1996
  • The portion of the recycled paper and paper board packaging material has been the highest in recycled municipal solid waste since 1960 but still the portion of the discarded paper and paper board packaging material is the highest (32.3%) in whole discarded municipal solid waste in USA. In order to reduce more the discarded paper and paper board, the common municipal solid waste treatments were compared and recycling treatment was still recommended for the the discarded paper and paper board rather than of the waste treatments, landfill, incineration, and source reduction. In this paper, the obstacled of recycling treatment of the paper and paper board in municipal solid waste and new application of recycled paper and paper board packaging material are discussed.

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Municipal solid waste management in Aba, Nigeria: Challenges and prospects

  • Ezechi, Ezerie Henry;Nwabuko, Chima George;Enyinnaya, Ogbonna Chidi;Babington, Chibunna John
    • Environmental Engineering Research
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    • v.22 no.3
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    • pp.231-236
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    • 2017
  • Solid waste disposal and management is a critical problem in Nigeria. Annually, a huge quantity of municipal solid waste is generated in Aba. Municipal solid waste disposal in Aba poses severe challenge to environmental safety, public health and welfare of citizens. The situation is made worse by the indiscriminate dumping of refuse at roadsides, streets, waterways and empty lands. The impact of this waste management practice in Aba is environmental deterioration. Efforts to improve waste management in Aba have not recorded significant success. This paper therefore aims to highlight the challenges facing the waste management sector in Aba and proffer solutions on how to improve the sector.

Current Status and Prospect on the Recycling of Municipal Solid Waste in the United States (미국(美國)의 도시생활(都市生活)쓰레기 재활용(再活用) 현황(現況)과 전망(展望))

  • Song, Young-Jun;Lee, Gye-Seung;Shin, Kang-Ho;Kim, Youn-Che;Seo, Bong-Won
    • Resources Recycling
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    • v.20 no.5
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    • pp.3-15
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    • 2011
  • This study describes the national municipal solid waste stream of the United States based on data collected and published by EPA for 1960 through 2009. This paper characterizes the municipal solid waste stream of the nation as a whole, and can be useful for understanding the nationwide stream of America. Among the various materials contained in MSW, recycling status of the major materials of paper and paperboard, glass, metals, plastics, food scraps and yard trimmings are discussed somewhat more minutely.

Appropriate Technologies for Municipal Solid Waste Management in Bantayan Island, Philippines

  • Yu, Kwang Sun;Thriveni, Thenepalli;Jang, Changsun;Whan, Ahn Ji
    • Journal of Energy Engineering
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    • v.26 no.1
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    • pp.54-61
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    • 2017
  • In general, solid waste arises from lots of human activities such as domestic, agricultural, industrial, commercial, waste water treatment, construction, and mining activities etc. If the waste is not properly disposal and treated, it will have a negative impact to the environment, and hygienic conditions in urban areas and pollute the air with greenhouse gases (GHG), ground water, as well as the soil and crops. In this paper, the Carbon Resources Recycling Appropriate Technology Center feasibility studies are reported at Bantayan Island, Philippines on the municipal solid waste management. The present objective of our study is to characterize the municipal solid waste incineration (MSWI) bottom ash and case study of MSWI production status in Bantayan, Philippines. Currently, wide variety of smart technologies available for MSWI management in developed countries. Recycling is the other major alternative process for MSWI landfill issues. In this paper, the feasibility studies of applied appropriate technologies for the municipal solid waste generation in Bantayan Island, Philippines are reported.

Application of food waste leachate to a municipal solid waste incinerator for reduction of NOx emission and ammonia water consumption

  • Park, Jong Jin;Kim, Daegi;Lee, Kwanyong;Lee, Kyung Tae;Park, Ki Young
    • Environmental Engineering Research
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    • v.20 no.2
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    • pp.171-174
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    • 2015
  • This study investigates the possibility of applying food waste leachate to a municipal solid waste incinerator in order to effectively dispose of the material and to reduce the environmental impact. The spray positions and the quantity of the food waste leachate in municipal solid waste incinerator were adjusted to examine the stability of the process and the environmental effect. The rear of the first combustion chamber was found to be the desirable location for an environmental perspective in this study. At a food waste leachate injection rate of $2m^3/h$, the concentration of the emitted NOx decreased from 130 ppm to 40 ppm. The consumption of ammonia water was reduced by about 36% after adding the food waste leachate. The inclusion of the food waste leachate to the municipal incinerator also increased the amount of steam that was produced. The results of this research indicated that a positive outcome can be expected in terms of diversifying the treatment options for food waste leachate. The results also provide guidance for institutional framework to manage the incineration of the food waste leachate.

An Study on Compressive Strength Properties of Mortar with Municipal Solid Waste Incineration Ash Melted Slag Powder (쓰레기 소각재 용융슬래그 미분말을 혼입한 모르타르의 압축강도 특성에 대한 연구)

  • Lee, Yong-Moo;Kim, Young-Su
    • Journal of the Korea Institute of Building Construction
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    • v.16 no.1
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    • pp.53-58
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    • 2016
  • In order to investigate the feasibility of municipal solid waste incineration ash melted slag powder as admixture, an experimental study was performed on cement mortar with municipal solid waste incineration ash melted slag powder. Fresh mortar properties and strength properties with various municipal solid waste incineration ash melted slag powder replacement ratios were estimated. There replacement ratio adopted in this study was 0, 10, 20, 30, 40, 50%. After then flow properties was considered as properties of fresh mortar. And compressive strength was determined 3, 7, 14, 28, 56 days for the hardened mortar specimens. According to the test results, the flow of mortar was increased with in replacement amount of municipal solid waste incineration ash melted slag powder. Furthermore, compressive strength at early age was decreased, whereas the compressive strength at the age of 28, 56day was increased.

Methane emission from municipal solid waste dumpsites: A case study of Chennai city in India

  • Srinivasan, Pavithrapriya;Andimuthu, Ramachandran;S.N., Ahamed Ibrahim;Ramachandran, Prasannavenkatesh;Rajkumar, Easwari;Kandasamy, Palanivelu
    • Advances in environmental research
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    • v.9 no.2
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    • pp.97-107
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    • 2020
  • The indiscriminate growth in global population poses a threat to the world in handling and disposal of Municipal solid waste. Rapid urban growth increases the production, consumption and generation of Municipal solid waste which leads to a drastic change in the environment. The methane produced from the Municipal Solid waste accounts for up to 11% global anthropogenic emissions, which is a major cause for global warming. This study reports the methane emission estimation using IPCC default, TNO, LandGEM, EPER and close flux chamber from open dump yards at Perungudi and Kodungaiyur in Chennai, India. The result reveals that the methane emission using close flux chamber was in the range of 8.8 Gg/yr-11.3 Gg/yr and 6.1Gg/yr to 9.1 Gg/yr at Kodungaiyur and Perungudi dump yard respectively. The per capita waste generation was estimated based on waste generation and population. The waste generation potential was projected using linear regression model for the period 2017-2050. The trend of CH4 emission in the actual field measurement were increased every year, similarly the emission trend also increased in IPCC default method (mass balance approach), EPER Germany (zero order decay model) where as TNO and Land GEM (first order decay model) were decreased. The present study reveals that Kodungaiyur dump yard is more vulnerable to methane emission compared to Perungudi dump yard and has more potential in waste to energy conversion mechanisms than compare to Perungudi dump yard.

Municipal Solid Waste Management: Challenges and Opportunities in Nepal

  • Gurung, Anup;Oh, Sang-Eun
    • Korean Journal of Soil Science and Fertilizer
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    • v.45 no.3
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    • pp.421-427
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    • 2012
  • Nepal is one of the least urbanized countries in the world where more than 80% of the total population live in rural areas. In recent years, the rate of urbanization became rampant which ultimately accelerated immense pressure on municipal services, especially on managing the ever increasing amount of wastes. Due to lack of technology, infrastructure and financial capacity management of increasing amount of solid waste has become a major challenge in municipalities of Nepal. The indiscriminate dumping of solid wastes already affected the urban environment by creating a serious occupational health and environmental hazard to the vicinity of the dumping sites. However, there is great possibility of recovering methane from the landfill sites since the typical Nepalese municipal solid waste contains more than 65% of organic wastes. Despite having enormous potential of generating electricity from hydropower, Nepal is facing acute shortage of energy. Therefore, comprehensive scientific research and development is necessary for making solid waste to environmentally friendly by converting waste to the energy.