Search results for " Waste Management"

ELECTRE III and IV Decision Aids in an Environmental Problem

1997

This paper gives a description and analysis of the use of ELECTRE III and IV decision aids in the context of choosing a solid waste management system in two different real applications in Finland. Both methods fit this context well in general, since the problem involves many criteria and many ‘decision makers’. The available data are imprecise, which also favours the use of outranking methods. In addition to the real applications, we also study the choice behaviour offered for decision makers in connection with these methods by looking at some test results obtained from randomly generated problems. In general, the results of ELECTRE III and IV do not differ substantially from those from the…

Evaluating and prioritizing municipal solid waste management-related factors in Romania using fuzzy AHP and TOPSIS

2020

Integrated Methods for Establishing the Sustainability of Urban Policies: Applying Ecological Footprint to the Municipal Solid Waste Management

2018

The Ecological Footprint (EF) method is applied here to assess alternative policies regarding the Municipal Solid Waste (MSW) management. This approach arises from two considerations. First, the MSW management certainly requires a great attention by politicians and technicians, due to its importance for effectively administrating and environmentally controlling urban contexts. On the other hand, the EF method, thanks to its holistic structure of analysis, supposedly provides a synthetic and effective measure of the sustainability of waste management systems, so allowing public administrations to prioritizing policies aimed at implementing environmental actions. Here the EF method is used fo…

Municipal waste management issues

2018

Municipal Solid Waste Management in the Accra Metropolitan Area, Ghana

2003

Municipal solid waste management in Accra, Ghana, is at present delivered in an unsustainable manner. Due to uncontrolled urbanisation, large quantities of waste are generated daily in Accra, and this exerts much pressure on an over strained solid waste management system. Coupled with weak institutional capacity, and lack of resources, both human and capital, the city authorities face difficulties in ensuring that all the waste generated in the city is collected for disposal. Home collection of waste is limited to high and, some middle income areas while the poor are left to contend with the problem on their own. This leads to indiscriminate disposal of waste in surface drains, canals and s…

Environmental assessment of the Sibiu County, Romania: proposal for sewage sludge and OFMSW management

2017

The aim of the work is to assess current solid waste management (SWM) and wastewater treatment (WWT) in the county of Sibiu, Romania. Sibiu is a region where industrialization and tourism are spreading constantly, while pollution monitoring and the introduction of circular economy (CE) principles are still lacking. The environmental issues are mostly due to the absence of reliable sanitation systems, in particular for what concerns sewage sludge treatment. Moreover, Organic fraction from selective collection of municipal solid waste is still missing, since it is disposed of directly to landfill, increasing environmental pollution and contributing considerably to global warming. As a result,…

Economic and Environmental Assessment of Biomass Power Plants in Southern Italy

2022

In 2019, Europe adopted the New Green Deal as a strategic plan to become a competitive, resource-efficient, and driven economy by reducing its gas emissions and carbon footprint. Due the COVID-19 pandemic, this strategic plan was recently updated to expedite the green transition of European industries. Therefore, the present paper deals with the problem of deciding an appropriate size for a biomass plant that directly produces electric energy by means of two different conversion processes: combustion and gasification. After an initial estimation of the energy potential in western Sicily, GIS data of biomass growth were used to identify the appropriate size for the power plants under investi…

Managing Municipal Solid Waste: Energetic and Environmetal Comparison among different options

2001

Goal. This research aims to assess the environmental effects of integrated strategies in a municipal waste management system. In particular, analysis is focused on a waste stream in Palermo, where landfill involves the prompt disposal of the most waste after collection. The current local management system is compared with two integrated waste management alternatives. Both the options comply with Italian regulations, but each one predicts adopting the available technologies in different ways. Methods and objectives. Energetic and environmental balances are carried out in each management system referring to local waste composition in order to quantify energy consumption, the recovery of mater…

Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

2016

The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The r…

A technological approach towards integrated solid waste management in developing countries

2017

This research is grounded in the planning concept of Integrated Solid Waste Management (ISWM). ISWM was developed to promote sustainability in the waste management for developing countries. Waste managers and policy makers in developing countries have been adopting the principles of ISWM into their waste strategies for several decades. But despite their many efforts, still important problems remain, as is the case of low collection coverage, lack of proper treatment of the different waste types, high dependency on final disposal sites and even in some cities uncontrolled dumping is still accepted as the only way to handle the waste. For that reason, waste management in developing countries …