scholarly journals Conversion Technologies: Evaluation of Economic Performance and Environmental Impact Analysis for Municipal Solid Waste in Malaysia

Processes ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 752 ◽  
Author(s):  
Rabiatul Adawiyah Ali ◽  
Nik Nor Liyana Nik Ibrahim ◽  
Hon Loong Lam
Keyword(s):  
Environmental Impact ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Economic Performance ◽  
Impact Analysis ◽  
Greenhouse Gas Emission ◽  
Thermal Conversion ◽  
Network Synthesis ◽  
Minimal Environmental Impact ◽  
Conversion Technologies

The generation of municipal solid waste (MSW) is increasing globally every year, including in Malaysia. Approaching the year 2020, Malaysia still has MSW disposal issues since most waste goes to landfills rather than being utilized as energy. Process network synthesis (PNS) is a tool to optimize the conversion technologies of MSW. This study optimizes MSW conversion technologies using a PNS tool, the “process graph” (P-graph). The four highest compositions (i.e., food waste, agriculture waste, paper, and plastics) of MSW generated in Malaysia were optimized using a P-graph. Two types of conversion technologies were considered, biological conversion (anaerobic digestion) and thermal conversion (pyrolysis and incinerator), since limited data were available for use as optimization input. All these conversion technologies were compared with the standard method used: landfilling. One hundred feasible structure were generated using a P-graph. Two feasible structures were selected from nine, based on the maximum economic performance and minimal environmental impact. Feasible structure 9 was appointed as the design with the maximum economic performance (MYR 6.65 billion per annum) and feasible structure 7 as the design with the minimal environmental impact (89,600 m3/year of greenhouse gas emission).

ANALYSIS OF THE SYSTEM OF MUNICIPAL SOLID WASTE MANAGEMENT IN IVANO-FRANKIVSK REGION (UKRAINE)

2019 ◽  
Vol 33 (2) ◽  
pp. 39-47
Author(s):  
Maksym Karpash ◽  
◽  
Artur Voronych ◽  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Thermal Conversion ◽  
City Council ◽  
Border Region ◽  
Municipal Solid Waste Management ◽  
Msw Management ◽  
Cross Border ◽  
Conversion Technologies

In the course of the implementation of the project funded by Hungary-Slovakia-Romania-Ukraine ENI Cross border Cooperation Program 2014-2020: Energy Recovery from Municipal Solid Waste by Thermal Conversion Technologies in Cross-border Region HUSKROUA / 1702 / 6.1 / 0015 the analysis of the system of MSW management in Ivano-Frankivsk region and the city of Ivano-Frankivsk was carried out. The volumes of formation and morphological composition of solid waste at the MSW landfill in the village of Rybne, which receives municipal solid waste from the settlements of Ivano-Frankivsk City Council, settlements of Tysmenytsia, Nadvirna, Kosiv, Kolomyia districts have been defined. The main directions of improving the current situation in the field of MSW management have been identified on the example of Ivano-Frankivsk region.

ENERGY RECOVERY FROM MUNICIPAL SOLID WASTE BY THERMAL CONVERSION TECHNOLOGIES IN CROSS-BORDER REGION – PRINCIPLES AND METHODS OF STUDY

2019 ◽  
Vol 33 (2) ◽  
pp. 7-11
Author(s):  
Miorița Ungureanu ◽  
◽  
Anamaria Dăscălescu ◽  
Jozsef Juhasz ◽  
◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Recovery ◽  
Thermal Conversion ◽  
Border Region ◽  
Treatment Methods ◽  
Cross Border ◽  
Conversion Technologies

The paper presents the objectives of the project "Energy Recovery from Municipal Solid Waste by Thermal Conversion Technologies in Cross-border Region " funded by Hungary - Slovakia - Romania - Ukraine ENI CBC Programme 2014-2020. Through collaboration of the three researchers groups from Romania, Ukraine and Slovakia will be elaborate technical proposals for the thermal treatment methods of MSW and strategies of MSW thermal treatment for the all 3 regions (Maramures, Ivano-Frankivsk, Prešovský).

Environmental impact assessment of organic fraction of municipal solid waste treatment by anaerobic digestion in Sri Lanka

2021 ◽  
pp. 0734242X2110134
Author(s):  
Rasangika Thathsaranee Weligama Thuppahige ◽  
Sandhya Babel
Keyword(s):  
Anaerobic Digestion ◽  
Sri Lanka ◽  
Environmental Impact ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Resource Scarcity ◽  
Policy Formation ◽  
Ozone Formation ◽  
Organic Fraction ◽  
Management Options

The management of organic fraction of municipal solid waste (OFMSW) has continued to be a significant challenge in Sri Lanka. Anaerobic digestion is one of the management options of OFMSW. However, it generates unavoidable environmental impacts that should be addressed. The present study focuses to assess the environmental impact of a full-scale anaerobic digestion plant in Sri Lanka from a life cycle perspective. The inventory data were obtained from direct interviews and field measurements. Environmental burdens were found to be in terms of global warming potential (230 kg CO2 eq) ozone formation on human health (6.15 × 10−6 kg NO x eq), freshwater eutrophication (2.92 × 10−3 kg P eq), freshwater ecotoxicity (9.27 × 10−5 kg 1,4 DCB eq), human carcinogenic toxicity (3.98 × 10−4 kg 1,4 DCB eq), land use (1.32 × 10−4 m2 a crop eq) and water consumption (2.23 × 10−2 m3). The stratospheric ozone depletion, fine particulate matter formation, ozone formation on terrestrial ecosystems, terrestrial acidification, marine eutrophication, ecotoxicity (terrestrial and marine), human non-carcinogenic toxicity, mineral resource scarcity and fossil resource scarcity, were avoided due to electricity production. Results show that the direct gaseous emissions and digestate generation should be addressed in order to reduce the burdens from the anaerobic digestion plant. Finally, the results of the study could help in policy formation and decision-making in selecting future waste management systems in Sri Lanka.

scholarly journals Regional Distance Routes Estimation for Municipal Solid Waste Disposal, Case Study São Paulo State, Brazil

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3964
Author(s):  
Laryssa Morais ◽  
Victor Nascimento ◽  
Silvio Simões ◽  
Jean Ometto
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Greenhouse Gas Emission ◽  
Regional Scale ◽  
Sao Paulo ◽  
Environmental Cost ◽  
Population Increase ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

The urban population increase in the world, the economic expansion, and the rise in living standards associated with society’s habits and lifestyles accelerated the municipal solid waste (MSW) generation in undeveloped countries, such as in Brazil, in which the generation increased by 25% from 2012 to 2017. In the same period, the São Paulo state, the richest Brazilian state, increased its municipal solid waste generation by 51%. All this MSW needed to be collected and transported, and this process has a high economic and environmental cost. Therefore, this study aims to identify, using spatial analysis, the routes used by MSW trucks to estimate the distances traveled to dispose of the MSW on a regional scale considering all municipalities in the São Paulo state. The findings showed that the landfill numbers decrease, mainly individual ones, which receive MSW only from the city where it is located. Otherwise, the consortium landfills number is increasing, as well as the number of municipalities that share the same disposal site. Consequently, the distances to transport MSW from urban areas to final disposal sites increased by about 55% from 2012 to 2017, reaching 613 million kilometers during this period. This total distance is sufficient to make more than 12,806 laps on Earth and contribute to high fuel consumption and greenhouse gas emission.

Sign in / Sign up

Export Citation Format

Share Document