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首页> 外文期刊>Journal of Solid Waste Technology and Management >AGRONOMIC PROPERTIES AND HEAVY METALS CONTENT IN SOIL RECLAIMED FROM MUNICIPAL SOLID WASTE LANDFILL DEVELOPMENT OF A KNOWLEDGE-BASED SYSTEM FOR FOUNDRY WASTE RECYCLING
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AGRONOMIC PROPERTIES AND HEAVY METALS CONTENT IN SOIL RECLAIMED FROM MUNICIPAL SOLID WASTE LANDFILL DEVELOPMENT OF A KNOWLEDGE-BASED SYSTEM FOR FOUNDRY WASTE RECYCLING

机译：基于知识的基础废物回收系统开发的城市固体废物填埋场回收的土壤中的农艺性质和重金属含量

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Landfill soils reclaimed from municipal solid waste landfill were characterized for agronomic properties and heavy metals. The samples were collected from Khon Kaen Municipality engineered landfill, Khon Kaen, Thailand, approximately aged 10-15 years, and screened with a 6.3-mm sieve. Chemical properties analysis was undertaken by appropriate procedure, and heavy metals were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS). The landfill soil characteristics measured include pH, electrical conductivity (EC), cation exchange capacity (CEC), organic matter (OM), total N, available P, K, Mg and Ca; results obtained were 8.1, 4.2 dS/m, 4.4 cmol/kg, 4.9%, 0.27%, 23.2 mg/kg, 1.24 g/kg, 10.5 g/kg and 0.43 g/kg, respectively. The heavy metal contents in landfill soil included 2.0 As, 3.25 Cd, 3.3 Co, 38.0 Cr, 166.0 Cu, 1533.0 Fe, 0.72 Hg, 412 Mn, 22.0 Ni, 157.0 Pb, 1.0 Se, 44.0 Sn and 662 Zn mg/kg, respectively. These heavy metal concentrations were within permissible limits for land application described by Thailand and US EPA. This result indicated that municipal solid waste landfill had potential for recovery soil, and its use for soil amendment.
机译：从市政固体垃圾填埋场中回收的填埋土壤具有农艺特性和重金属的特征。样品是从泰国孔敬市孔敬市政府设计的垃圾填埋场收集的，大约10到15岁，并用6.3毫米的筛子进行筛分。通过适当的程序进行化学性质分析，并通过电感耦合等离子体发射光谱法（ICP-OES）和电感耦合等离子体质谱法（ICP-MS）分析重金属。测得的垃圾填埋场土壤特性包括pH，电导率（EC），阳离子交换容量（CEC），有机质（OM），总氮，有效磷，钾，镁和钙；获得的结果分别为8.1、4.2 dS / m，4.4 cmol / kg，4.9％，0.27％，23.2 mg / kg，1.24 g / kg，10.5 g / kg和0.43 g / kg。垃圾填埋场土壤中的重金属含量包括2.0 As，3.25 Cd，3.3 Co，38.0 Cr，166.0 Cu，1533.0 Fe，0.72 Hg，412 Mn，22.0 Ni，157.0 Pb，1.0 Se，44.0 Sn和662 Zn mg / kg，分别。这些重金属的浓度在泰国和美国EPA规定的土地使用许可范围内。该结果表明，城市固体垃圾填埋场具有回收土壤的潜力，并且可以用于土壤改良。

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