Scholarlink

<p>This study presents a comprehensive environmental and economic evaluation of a composting-based Mechanical Biological Treatment (MBT) plant treating mixed Municipal Solid Waste (MSW). The MBT plant consists of four trommel screens for separating waste fractions by particle size and a composting plant for stabilizing biodegradable waste. The MBT plant produces 93.51 tonnes of Solid Recovered Fuel (SRF)/Segregated Combustible Fraction (SCF), 0.82 tonnes of recyclables, and 3.53 tonnes of compost out of 148.82 tonnes of mixed MSW. The environmental impacts of the five-unit processes on various impact categories were evaluated using Life Cycle Assessment (LCA). Among the five mechanical and biological treatment processes, screening of mixed waste has the greatest impact (46.51–50.32%) across all impact categories. The effect of Mechanical Biological Treatment of MSW on climate change is 127.68&#xa0;kg CO₂ eq per tonne of compost production. The findings highlight that optimizing screening and composting processes can significantly mitigate the adverse environmental impacts of waste treatment. The revenue generated per tonne of waste processed equals 0.65 US$. The MBT plant’s net Operation &amp; Maintenance (O &amp; M) expenses are 7.53 US$/tonne of waste, below the net O &amp; M expenses reported in previous studies or within the range reported in the literature. The study suggests that municipalities in India should increase the share of funds allocated to waste treatment in the waste management system. Additionally, this study underscores the need for integrated policies aimed at reducing the life-cycle impacts of MSW management, contributing to circular economy (CE) goals and climate resilience.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Environmental and Economic Performance of Waste Resource Recovery Systems: Circular Economy and Decarbonization Pathways in Emerging Economies

  • 期刊论文

  • 发表日期：

    2026年3月24日

查看全文
  • Dhananjay Singh Shyamal,
  • Cheela Venkata Ravi Sankar,
  • Absar Ahmad Kazmi,
  • Brajesh Kumar Dubey

摘要

This study presents a comprehensive environmental and economic evaluation of a composting-based Mechanical Biological Treatment (MBT) plant treating mixed Municipal Solid Waste (MSW). The MBT plant consists of four trommel screens for separating waste fractions by particle size and a composting plant for stabilizing biodegradable waste. The MBT plant produces 93.51 tonnes of Solid Recovered Fuel (SRF)/Segregated Combustible Fraction (SCF), 0.82 tonnes of recyclables, and 3.53 tonnes of compost out of 148.82 tonnes of mixed MSW. The environmental impacts of the five-unit processes on various impact categories were evaluated using Life Cycle Assessment (LCA). Among the five mechanical and biological treatment processes, screening of mixed waste has the greatest impact (46.51–50.32%) across all impact categories. The effect of Mechanical Biological Treatment of MSW on climate change is 127.68 kg CO₂ eq per tonne of compost production. The findings highlight that optimizing screening and composting processes can significantly mitigate the adverse environmental impacts of waste treatment. The revenue generated per tonne of waste processed equals 0.65 US$. The MBT plant’s net Operation & Maintenance (O & M) expenses are 7.53 US$/tonne of waste, below the net O & M expenses reported in previous studies or within the range reported in the literature. The study suggests that municipalities in India should increase the share of funds allocated to waste treatment in the waste management system. Additionally, this study underscores the need for integrated policies aimed at reducing the life-cycle impacts of MSW management, contributing to circular economy (CE) goals and climate resilience.