scholarly journals Aproveitamento energético e ações consorciadas no contexto dos resíduos sólidos urbanos

Revista DAE ◽  
2019 ◽  
Vol 221 (68) ◽  
pp. 60-70
Author(s):  
Flávio Aguiar Folletto ◽  
Luciana Paulo Gomes ◽  
Marcelo Oliveira Caetano
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
River Basin ◽  
Energy Recovery ◽  
Solid Wastes ◽  
Energy Utilization ◽  
Operating Costs ◽  
Symbiotic Relationship ◽  
Economic Aspects ◽  
Energy Assessment

Resumo Entre as etapas que integram o gerenciamento de Resíduos Sólidos Urbanos (RSU), a destinação final em aterros sanitários tem recebido menor atenção na gestão dos processos, quando comparados à coleta e ao transporte de resíduos. A associatividade entre municípios ou consórcios públicos tem se mostrado uma alternativa emer- gente, não só para com os aspectos econômicos, mas também visando a possibilidade de aproveitamento ener- gético. Este estudo buscou avaliar alternativas para a valoração energética no escopo dos RSU, abordando uma relação simbiótica com os geradores, localizados na Bacia Hidrográfica do Rio dos Sinos. Os arranjos intermu- nicipais possibilitaram vislumbrar a possibilidade de gerir consorciadamente quatro ordenamentos, reduzindo os custos de instalação e operação de aterros sanitários, além da expectativa favorável ao reaproveitamento energético, a partir do biogás gerado nesses sistemas. Palavras-chave: Resíduos Sólidos Urbanos. Aproveitamento energético. Arranjos intermunicipais. Abstract Among the steps that integrate the management of Municipal Solid Waste (MSW), the disposal in landfills has received less attention in the management of processes, when compared to the collection and transportation of waste. The associativity between municipalities or public consortia has shown to be an emerging alternative, not only to the economic aspects, but also, aiming at the possibility of energy utilization. This study search to evaluate alternatives to energy assessment within the RSU, addressing a symbiotic relationship with the generators, located in the Rio dos Sinos River Basin. Intercity arrangements made it possible to glimpse the possibility of managing consortium four systems, reducing installation and operating costs of landfills, as well as favorable expectations to reuse energy from the biogas, generated in these systems. Keywords: Urban solid wastes. Energy recovery. Intercity arrangements.

CLEAN UTILIZATION OF MUNICIPAL SOLID WASTES AND ALTERNATIVE FUELS DERIVED FROM IT

2020 ◽  
Vol 5 (4) ◽  
pp. 202-209
Author(s):  
Alexander Topal ◽  
◽  
Iryna Holenko ◽  
Luidmyla Haponych ◽  
◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Alternative Fuels ◽  
Solid Wastes ◽  
Municipal Solid Wastes ◽  
Local Conditions ◽  
Ecological Requirements ◽  
Clean Technologies

For the municipal solid waste (MSW) to be used in a proper way, it is necessary to implement clean technologies capable of thermal treatment of MSW and RDF in order to produce heat and electricity while meeting current ecological requirements. Nowadays, a number of technologies for MSW/RDF thermal treating are being used worldwide. Among them, the most proven technologies, applicable for industrial introduction, have been considered while analyzing their advantages/ disadvantages accounting for local conditions of Ukraine.

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.

Environmental and energy performances of the Italian municipal solid waste incineration system in a life cycle perspective

2021 ◽  
pp. 0734242X2110039
Author(s):  
Federico Sisani ◽  
Amani Maalouf ◽  
Francesco Di Maria
Keyword(s):  
Life Cycle ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Recovery ◽  
Waste Incineration ◽  
Primary Energy ◽  
Municipal Solid Waste Incineration ◽  
Recovery Scheme ◽  
Assessment Approach ◽  
Average Quantity

The environmental and energy performances of the Italian municipal solid waste incineration (MSWI) system was investigated by a life cycle assessment approach. On average the 39 MSWIs operating in Italy in 2018 treated about 6,000,000 Mg of residual municipal solid waste (RMSW) recovering on average from 448 kWh Mg−1 RMSW to 762 kWh Mg−1 RMSW of electricity and from 732 kWh Mg−1 RMSW to 1102 kWh Mg−1 RMSW of heat. The average quantity of CO2eq Mg−1 RMSW emitted ranged from about 800 up to about 1000 depending on the size and on the energy recovery scheme of the facility. Avoided impacts (i.e., negative values) were detected for the kg PM2,5eq Mg−1 RMSW and for human health (disability-adjusted life year Mg−1 RMSW). The determination of the hybrid primary energy index (MJ Mg−1 RMSW) indicated that mainly large size facilities and those operating according to a power and heat energy recovery scheme are effectively able to replace other primary energies by the exploitation of the lower heating values of the RMSW.

scholarly journals Municipal Solid Waste Characterization and Landfill Gas Generation in Kakia Landfill, Makkah

2021 ◽  
Vol 13 (3) ◽  
pp. 1462
Author(s):  
Faisal A. Osra ◽  
Huseyin Kurtulus Ozcan ◽  
Jaber S. Alzahrani ◽  
Mohammad S. Alsoufi
Keyword(s):  
Solid Waste ◽  
Energy Recovery ◽  
Solid Waste Management ◽  
Landfill Gas ◽  
Drainage System ◽  
Solid Wastes ◽  
Generation Model ◽  
Gas Generation ◽  
Municipal Solid Wastes ◽  
Makkah City

In many countries, open dumping is considered the simplest, cheapest, and most cost-effective way of managing solid wastes. Thus, in underdeveloped economies, Municipal Solid Wastes (MSW) are openly dumped. Improper waste disposal causes air, water, and soil pollution, impairing soil permeability and blockage of the drainage system. Solid Waste Management (SWM) can be enhanced by operating a well-engineered site with the capacity to reduce, reuse, and recover MSW. Makkah city is one of the holiest cities in the world. It harbors a dozen of holy places. Millions of people across the globe visit the place every year to perform Hajj, Umrah, and tourism. In the present study, MSW characterization and energy recovery from MSW of Makkah was determined. The average composition of solid waste in Makkah city is organic matter (48%), plastics (25%), paper and cardboard (20%), metals (4%), glass (2%), textiles (1%), and wood (1%). In order to evaluate energy recovery potential from solid waste in Kakia open dumpsite landfill, the Gas Generation Model (LandGEM) was used. According to LandGEM results, landfill gas (methane and carbon dioxide) generation potential and capacity were determined. Kakia open dump has a methane potential of 83.52 m3 per ton of waste.

Evaluation of two different alternatives of energy recovery from municipal solid waste in Brazil

2017 ◽  
Vol 35 (11) ◽  
pp. 1137-1148 ◽  
Author(s):  
Ana Carolina Medina Jimenez ◽  
Guilherme Henrique Nordi ◽  
Milagros Cecilia Palacios Bereche ◽  
Reynaldo Palacios Bereche ◽  
Antonio Garrido Gallego ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Recovery
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