Laboratory investigation of compaction characteristics of fresh and degraded municipal solid waste
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Laboratory investigation of compaction characteristics of fresh and degraded municipal solid waste Mahesh Endait1 · Swati Patil1 Received: 29 March 2020 / Revised: 13 August 2020 / Accepted: 21 August 2020 © Zhejiang University Press 2020
Abstract Compaction characteristics of municipal solid waste (MSW) are the important parameters in the landfill design. Well compacted MSW increases the placement efficiency and thus reduces the space requirement for landfills. The composition of MSW, degradation, and compactive efforts are the key factors that control the compaction characteristics of MSW. This paper presents the laboratory investigation of compaction characteristics of fresh and aged MSW at a wide range of compactive efforts. Fresh MSW (S1), Windrows sample (S2) of an age of 2 months, 5-year-old MSW (S3), 10-year-old MSW (S4), and 15-year-old MSW (S5) were collected from the working phase of the solid waste management site, Vilholi Nasik, (MH) India. Compaction was carried in 1000 mL capacity mold under four different energy levels, i.e., 552 (E1), 1125 (E2), 2682 (E3), and 5364 (E4) kJ/m3. The results showed that the maximum dry density (γdmax) was observed less in the S1 sample at the standard compactive effort. As the age of the sample increase from fresh to 5 years, γdmax was more with lesser optimum moisture content (wopt) because of the completion of the biodegradation process. No further change in compaction characteristics was observed once the biodegradation process was finished. The study shows that the particle size of MSW gets reduced as the age of the sample increased. This reduces the particle size of MSW is one of the contributing factors to increasing γdmax. When compactive energy is changed from E1 to E4 the γdmax increased and wopt decreased for all the samples. A normalized wopt and compaction energy correlation is proposed in this study. The correlation can get compaction characteristics of fresh and aged MSW at any compactive effort. Keywords Compaction · Municipal solid waste · Degradation · Compaction efforts
Introduction Because of rapid urbanization and industrialization, India is producing an enormous quantity of municipal solid waste (MSW). The quantity of solid waste generated in India varies from 0.12 kg to 0.60 kg per capita per day [1]. During the years 2016–2017, it was 0.1 million tons per day (TPD), which has been forecast to rise to 33% in the next 15 years. Despite the efforts taken to reduce waste and recycling as an option, the amount of waste generated and disposed of in landfills is increasing. In this scenario, optimizing the landfill capacity is best suited rather identify the new landfill site. * Mahesh Endait [email protected] Swati Patil [email protected] 1
Department of Civil Engineering, School of Engineering and Technology, Sandip University, Nashik, India
Optimization of existing landfills can be possible through the scientific way of compaction of MSW. Well compacted MSW not only gives stability but also incr
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