Feasibility analysis of pre-treatment actions and separation methods for CDW fractions

Abstract

The global increase in construction and demolition waste (CDW) and escalating stormwater contamination present significant environmental challenges. Utilizing CDW as a filtration medium offers a sustainable solution, simultaneously reducing waste and improving stormwater quality through effective contaminant removal. This study investigates pretreatment actions and separation methods for CDW fractions to enhance their suitability for stormwater filtration systems. A comprehensive literature review provides insights into current technologies, methods, theories, and practices. Additionally, the economic and sustainability aspects are analyzed to assess their feasibility and environmental impact. Empirical analyses of samples from two companies, Kuusakoski and Purkupiha, were conducted to evaluate the effectiveness of existing separation methods, with Kuusakoski yielding promising results. Testing included composition, moisture content, density, and particle size analyses. In conclusion, this thesis explores the development of two distinct stormwater filter designs using CDW.