Research of Stratified Compaction Process of Municipal Solid Waste

2012 ◽  
Vol 599 ◽  
pp. 640-646
Author(s):  
Yu Kun Wang ◽  
Ju Ping Yang ◽  
Xu Ya Peng
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Positive Influence ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Layer By Layer ◽  
Operational Cost ◽  
Safe Operation ◽  
Compaction Process ◽  
Garbage Dump

The density of municipal solid waste is lower. In order to increase the density of garbage dump, guarantee safe operation, save operational cost and extend the lifetime of landfill site it is very important to compact garbage layer by layer. Through the analysis of mechanical property and systematically study of the engineering experiment of Changshengqiao Sanitary Landfill which is the first standardized landfill site in Chongqing we conclude that there is no positive influence of compacting effect caused by moisture content of garbage dump, and the best compacting effect is resulted from 3 times compacting of each garbage layer of which the thickness is about 0.6m by special compactor.

Landfill siting based on optimisation, multiple decision analysis, and geographic information system analyses

2018 ◽  
Vol 36 (7) ◽  
pp. 606-615 ◽  
Author(s):  
Luciana MG Spigolon ◽  
Mariana Giannotti ◽  
Ana P Larocca ◽  
Mario AT Russo ◽  
Natália da C Souza
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Decision Analysis ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Geographic Information ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Sanitary Landfills ◽  
The Cost

Sanitary landfill remains the most common methodology for final treatment and disposal of municipal solid waste worldwide, the cost per tonne depends on its scale. The bigger the landfill, the cheaper the cost of treatment, so the consortium of municipalities is the solution to achieve an economic scale. However, the growth of waste production introduces pressure for adequate solutions and therefore has been increasing sanitary landfill site selection studies. This study proposes a methodology for siting sanitary landfills and optimising the transport of municipal solid waste for a locality in the state of São Paulo, Brazil. Environmental, social, and economic criteria were established. Their correlated attributes were categorised into suitability levels and weighted according to multiple decision analysis. The data were organised and mapped within a geographic information system. Considering sites where landfills are prohibited, two scenarios were generated. The Mixed-Integer Quadratic Programming mathematical model is used to minimise the costs of transporting municipal solid waste and operating sanitary landfills. In Scenario 1, the results indicated that 64% of the area was suitable as a potential sanitary landfill site, 9% of the area exhibited medium suitability, and 27% of the area was classified as restricted. In Scenario 2, the results indicated that 25% of the area was suitable as a potential sanitary landfill site, 4% of the area had medium suitability, and 71% of the area was classified as restricted. The optimal solutions for Scenario 1 and Scenario 2 enabled sites to be determined for five landfills and four landfills, respectively.

scholarly journals A Techno-Economic Evaluation of Municipal Solid Waste (MSW) Conversion to Energy in Indonesia

2021 ◽  
Vol 13 (13) ◽  
pp. 7232
Author(s):  
Muhammad Mufti Azis ◽  
Jonas Kristanto ◽  
Chandra Wahyu Purnomo
Keyword(s):  
Economic Evaluation ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Recovery ◽  
Capital Investment ◽  
Electricity Price ◽  
Waste To Energy ◽  
Operational Cost ◽  
Internal Rate Of Return ◽  
Sensitive Factor

Municipal solid waste (MSW) processing is still problematic in Indonesia. From the hierarchy of waste management, it is clear that energy recovery from waste could be an option after prevention and the 5R (rethink, refuse, reduce, reuse, recycle) processes. The Presidential Regulation No 35/2018 mandated the acceleration of waste-to-energy (WtE) plant adoption in Indonesia. The present study aimed to demonstrate a techno-economic evaluation of a commercial WtE plant in Indonesia by processing 1000 tons of waste/day to produce ca. 19.7 MW of electricity. The WtE electricity price is set at USD 13.35 cent/kWh, which is already higher than the average household price at USD 9.76 cent/kWh. The capital investment is estimated at USD 102.2 million. The annual operational cost is estimated at USD 12.1 million and the annual revenue at USD 41.6 million. At this value, the internal rate of return (IRR) for the WtE plant is 25.32% with a payout time (PoT) of 3.47 years. In addition, this study also takes into account electricity price sales, tipping fee, and pretreatment cost of waste. The result of a sensitivity analysis showed that the electricity price was the most sensitive factor. This study reveals that it is important to maintain a regulated electricity price to ensure the sustainability of the WtE plant in Indonesia.

Influence of Codisposal of Municipal Solid Waste and Olive Vegetation Water on the Anaerobic Digestion of a Sanitary Landfill

1993 ◽  
Vol 27 (2) ◽  
pp. 261-271 ◽  
Author(s):  
R. Cossu ◽  
N. Blakey ◽  
P. Cannas
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Research Study ◽  
Inhibitory Effect ◽  
Organic Load ◽  
Sanitary Landfill ◽  
Inhibitory Influence ◽  
Vegetation Water ◽  
Waste Degradation ◽  
Very High

A research study was carried out aiming to investigate the possibility of treatment of vegetation water in a anaerobic digester like a sanitary landfill. This vegetation water originates from olive oil production. The results, obtained from lysimeters filled with Municipal Solid Waste, show very high gasification and reduction of the organic load of vegetation water, with no inhibitory effect on waste degradation processes providing the vegetation water is added to an active methanogenic system or buffering the landfill system during the acid phase. The inhibitory influence of compounds, like polyphenols, which can be present in vegetation water in large amounts, has been studied.

Municipal solid waste landfill site selection: a geotechnical and geoenvironmental-based geospatial approach

2020 ◽  
Vol 79 (10) ◽  
Author(s):  
Imoleayo O. Fatoyinbo ◽  
Akinola A. Bello ◽  
Olabanji O. Olajire ◽  
Olaoluwa E. Oluwaniyi ◽  
Oluwaseun F. Olabode ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Site Selection ◽  
Landfill Site ◽  
Landfill Site Selection ◽  
Municipal Solid Waste Landfill ◽  
Waste Landfill

Filth flies associated with municipal solid waste and impact of delay in cover soil application on adult filth fly emergence in a sanitary landfill in Pulau Pinang, Malaysia

2013 ◽  
Vol 103 (3) ◽  
pp. 296-302 ◽  
Author(s):  
A.T. Nurita ◽  
A. Abu Hassan
Keyword(s):  
Species Composition ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Musca Domestica ◽  
Field Conditions ◽  
Lucilia Cuprina ◽  
Sanitary Landfill ◽  
Cover Soil ◽  
Fortnightly Interval ◽  
Study Species

AbstractTwo types of municipal solid waste (MSW), newly arrived and 2 weeks old, were sampled from a sanitary landfill in Pulau Pinang, Malaysia at a fortnightly interval and kept under field conditions for 2 weeks. A total of 480 kg of each type of MSW was sampled to study species composition and impact of delays in cover soil applications on filth fly emergence. Out of 960 kg of MSW sampled, 9.2 ± 0.5 flies emerged per kilogram. Weekly adult fly emergence rates of newly arrived and 2-week-old waste did not differ significantly and MSW remained suitable for fly breeding for up to 1 month. Eight species of flies emerged from the MSW: namely, Musca domestica, Musca sorbens, Synthesiomyia nudiseta, Hydrotaea chalcogaster, Chrysomya megacephala, Lucilia cuprina, Hemipyrellia ligurriens and Sarcophaga sp. Newly arrived waste was determined to be the main source for M. domestica, C. megacephala and L. cuprina in the landfill owing to significantly higher mean emergence compared with 2-week-old waste. Musca sorbens was found in newly arrived waste but not in 2-week-old waste, suggesting that the species was able to survive transportation to landfill but unable to survive landfill conditions. Hemipyrellia ligurriens, H. chalcogaster and S. nudiseta were not imported into the landfill with MSW and pre-existing flies in and around the landfill itself may be their source. The results show that landfills can be a major source of fly breeding if cover soil or temporary cover is not applied daily or on a regular schedule.

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