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<p>This study explores the composting of unsorted biodegradable waste using, alluvial soil, black cotton soil and red clayey soil, combined with fly ash, cow dung, and sludge as amendments. Composting was performed in layered setups within baskets, and key parameters such as pH, moisture content, carbon-to-nitrogen (C/N) ratio, and nutrient levels (potassium and phosphorus) were monitored throughout the process. Results indicated that red clayey soil promoted the fastest decomposition; final C/N ratio was 18.24, phosphorous concentration of 0.311%, and potassium concentration of 0.62%. The analysis gave balanced results with a C/N ratio of 21.2, phosphorus content of 0.521%, potassium content of 0.88%. When the soil was black cotton soil, the nutrient rich compost produced with a higher potassium concentration (1.21%) and slower decomposition rate had a final C/N ratio of 24.62. Moisture content as well as pH stabilized in the optimal range of 45–50% and 5.56 to 7.52 for microbial activity. These findings suggest that soil-based composting systems can provide an effective means of sustainable waste management and agricultural enhancement.</p>

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Comparative analysis of soil types and amendments in composting biodegradable waste: black cotton, alluvial, and red clayey soils

  • 期刊论文

  • 发表日期：

    2025年10月27日

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  • Vaibhav A Bokade,
  • Aditi Harde,
  • Aniket Chavan,
  • Dilip H Lataye

摘要

This study explores the composting of unsorted biodegradable waste using, alluvial soil, black cotton soil and red clayey soil, combined with fly ash, cow dung, and sludge as amendments. Composting was performed in layered setups within baskets, and key parameters such as pH, moisture content, carbon-to-nitrogen (C/N) ratio, and nutrient levels (potassium and phosphorus) were monitored throughout the process. Results indicated that red clayey soil promoted the fastest decomposition; final C/N ratio was 18.24, phosphorous concentration of 0.311%, and potassium concentration of 0.62%. The analysis gave balanced results with a C/N ratio of 21.2, phosphorus content of 0.521%, potassium content of 0.88%. When the soil was black cotton soil, the nutrient rich compost produced with a higher potassium concentration (1.21%) and slower decomposition rate had a final C/N ratio of 24.62. Moisture content as well as pH stabilized in the optimal range of 45–50% and 5.56 to 7.52 for microbial activity. These findings suggest that soil-based composting systems can provide an effective means of sustainable waste management and agricultural enhancement.