Abstract
Integrated solid waste management (ISWM) involves approaching solid waste in a comprehensive manner with careful selection of appropriate technology. The aim of good waste management is to push waste up the hierarchy with landfill as a last resort. However given the current sorting technology, heterogeneous residues called Fines are created, they are considered at the present time as non-sortable and non-recoverable sent to second class landfills. A previous conducted study has revealed that fines contain several problematic substances for an inert classification. This article summarizes the most important problematic substances in fines for their acceptance inert landfills. These substances were identified by analyzing several samples collected from a siting of non-hazardous solid waste in the region of Rhône-Alpes in France. Eluate Analysis and fines analysis were conducted in order to identify the presence of any component that could prevent the classification of fines in an inert landfill. The obtained results were compared with the limit values for waste acceptance in an inert landfill. The study concluded that the six top-ranking problematic substances are Copper, Mercury, Antimony, Chloride, Fluoride and Sulfates, this study gives additional information on the origins of these substances that deserves particular attention to better limit their presence in the input of fines stream.
Highlights
According to the waste management hierarchy, landfilling is the least preferable option and should be limited to the necessary minimum [1]
Given the current sorting technology, heterogeneous residues called Fines are created, they are considered at the present time as non-sortable and non-recoverable sent to second class landfills
The results have shown the presence of several elements in the mixture of fines that prevent their classification for IWL
Summary
According to the waste management hierarchy, landfilling is the least preferable option and should be limited to the necessary minimum [1]. The average price to landfill a ton of ISW in France is 3 - 5 € HT/t for inert waste, 50 - 100 € HT/t for non-hazardous waste and reach prices higher than 500 €/t for hazardous waste storage facilities These are orders of magnitude because the costs vary according to the nature of the waste and any pollutant cause additional costs of stabilization. Fines typically consists of two different categories, firstly 38% of organic materials that include foam, paper/cardboard and wood and 40% of inert materials (Glass, rubble). This means that the organic part of the fines mixture should be evaluated with the TOC indicator and verified if it is not problematic for inert classification. This study focuses on the substance characterization of fines, which has a great importance in gathering useful, accurate, and appropriate information on the nature of the suitable landfill site
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