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<p>Despite the efforts exerted to improve solid waste management in Palestine, waste disposal is still not fully regulated and some random dumpsites are still active, which increase the risk of potential soil, air and groundwater contamination. This study aimed to assess potential compost mining from old abandoned dumpsites focusing only on heavy metals concentrations due to its high toxicity. The case study is conducted on the largest dumpsite in southern part of the West Bank, which locally called “Yatta dumpsite”. In total, 14 soil like samples were selected from different zones within the dumpsite and analyzed for Lead (Pb), Zinc (Zn), Nickel (Ni), Cadmium (Cd), Chromium (Cr) and Copper (Cu). The results showed that the heavy metals concentrations in descending order were Zn &gt; Cu &gt; Pb &gt; Cr &gt; Ni &gt; Cd with average values of 1927.14, 576.14, 489.07, 342.93, 131.93, and 6.00&#xa0;mg/kg, respectively. Four samples met the PSI compost threshold limits, while other samples exceeded these limits. Although compost mining from the zones where the heavy metals comply with the PSI compost standards can be used for agricultural applications, the absence of accurate information about the operational practices and complexity of mining activities make compost mining for agricultural use nonviable option. The simulation results of co-composting with other waste fraction showed that mixing ratio of around 60% of landfill mining with 40% of organic waste stream, based on average concentrations, can produce compost quality in compliance with the regulatory standards.</p>

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Is Compost Mining from Old Dumpsites Possible? A Case Study from Palestine Focusing on Heavy Metals Contamination

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Majed I. Al-Sari’

摘要

Despite the efforts exerted to improve solid waste management in Palestine, waste disposal is still not fully regulated and some random dumpsites are still active, which increase the risk of potential soil, air and groundwater contamination. This study aimed to assess potential compost mining from old abandoned dumpsites focusing only on heavy metals concentrations due to its high toxicity. The case study is conducted on the largest dumpsite in southern part of the West Bank, which locally called “Yatta dumpsite”. In total, 14 soil like samples were selected from different zones within the dumpsite and analyzed for Lead (Pb), Zinc (Zn), Nickel (Ni), Cadmium (Cd), Chromium (Cr) and Copper (Cu). The results showed that the heavy metals concentrations in descending order were Zn > Cu > Pb > Cr > Ni > Cd with average values of 1927.14, 576.14, 489.07, 342.93, 131.93, and 6.00 mg/kg, respectively. Four samples met the PSI compost threshold limits, while other samples exceeded these limits. Although compost mining from the zones where the heavy metals comply with the PSI compost standards can be used for agricultural applications, the absence of accurate information about the operational practices and complexity of mining activities make compost mining for agricultural use nonviable option. The simulation results of co-composting with other waste fraction showed that mixing ratio of around 60% of landfill mining with 40% of organic waste stream, based on average concentrations, can produce compost quality in compliance with the regulatory standards.