Multi-criteria Analysis of the Waste Management System in a Metropolitan Area

Abstract

Selection of a waste management strategy for a region is a difficult decision that must take into account various frequently contradictory targets and tasks. This article presents the use of a multi-criteria analysis for estimating and selecting the most profitable selection of a regional-metropolitan waste management system. The final solution should take ecological, economic and social aspects into consideration. It was established that the solutions chosen needed to ensure the following: waste stream reduction, social acceptance, and a profitable economic efficiency index.

Economic efficiency of biogas generation from food product waste

“…Biogas derived from biomass can be sold at gas stations for the needs of cars and agricultural machinery, or users of the gas network. According to the Law of Ukraine "On Electric Power", enterprises that produce electricity from alternative fuels can sell it, and the state must implement green tariffs purchasing the energy, which is 2.6 times more than wholesale tariffs [7,[20][21][22].…”

Application of multi-criterial analysis to evaluation of method of utilization of sludge from small wastewater treatment plants with sustainable development of rural areas

“…Multi-criterial analysis is a mathematical tool used for solving decision-making problems [7][8][9]. To define such problems, one must define the variants that will be analyzed as well as criteria of evaluation.…”

“…The criteria form a measure of how well the tasks would be achieved in each variant and should be expressed in a number. In this decision-making study the evaluated solutions are the methods of treatment and disposal utilization of sludge from small wastewater treatment plants [8,10,11]. Evaluation criteria were chosen in accordance with the principles of sustainable development.…”

“…In evaluation of sludge treatment and disposal from small wastewater treatment, the following should be considered [8][9][10]:…”

Human health risk assessment of heavy metals in road dust collected in Cracow

“…Dust on urban impervious surface which also contain heavy metals, has become one of the most important issues in urban environmental management and it's considered as toxic [1][2][3]. It can be easily re-suspended under certain outside dynamic condition, pollutants adsorbed on them enter human body by the pathways of respiratory inhalation and direct skin contact [1,4,5].…”