Comparative analysis of phytotoxicity and compost quality in industrial composting facilities processing different organic wastes
Comparative analysis of phytotoxicity and compost quality in industrial composting facilities processing different organic wastes
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DOI：
10.1016/j.jclepro.2019.119820
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发表时间：
2020-04-10
影响因子：
11.1
通讯作者：
Moreno, Joaquin
中科院分区：
文献类型：
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作者：
Siles-Castellano, Ana B.;Lopez, Maria J.;Moreno, Joaquin
比较分析了工业堆肥设施处理植物残留物、污水污泥、城市固体废物、农业食品废物或橄榄厂废物。通过测定发芽指数，分析了堆肥过程中植物毒性的演变过程。对最终产品的理化参数（pH、电导率、有机质、还原糖、酚类化合物、腐殖质物质、可溶性有机碳、N-NH4+和N-NO3-）和重金属含量进行了评价。该材料在冷却阶段或在处理橄榄厂废物、污水污泥和农业食品废物的设施中堆肥结束时变得无植物毒性。在处理城市固体废物和植物残留物的设施中，材料从未失去植物毒性。除城市固体废物外，所有堆肥均符合西班牙法律对重金属含量的要求。植物毒性与植物残渣堆肥的高电导率和pH值以及城市生活垃圾堆肥的重金属含量有关。发芽指数被推荐用于跟踪工业堆肥的性能。这项工作为在工业规模上更好地管理堆肥提供了新的见解。(C) 2019 Elsevier Ltd.版权所有。
A comparative analysis of industrial composting facilities processing Vegetal Residues, Sewage Sludge, Municipal Solid Waste, Agri-food Waste or Olive Mill Waste was performed. The evolution of phytotoxicity during composting was analyzed by measuring the germination index. Physico-chemical parameters (pH, electrical conductivity, organic matter, reducing sugars, phenolic compounds, humic substances, soluble organic carbon, N-NH4+ and N-NO3-) and heavy metals content were evaluated in final products. The material became non-phytotoxic at the cooling phase or at the end of composting in facilities processing Olive Mill Waste, Sewage Sludge, and Agri-food Waste. In facilities processing Municipal Solid Waste and Vegetal Residues, the material never lost phytotoxicity. All composts, except Municipal Solid Waste, fulfill requirements of the Spanish legislation for heavy metals content. Phytotoxicity was attributed to the high electrical conductivity and pH of the Vegetal Residues compost and heavy metal content of the Municipal Solid Waste compost. Germination index is recommended to track the performance of industrial composting. This work provides new insights for the better management of composting at the industrial scale. (C) 2019 Elsevier Ltd. All rights reserved.