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首页> 外文期刊>Fresenius Environmental Bulletin >INFLUENCE OF TREATED SEWAGE SLUDGE APPLICATIONS ON TOTAL AND AVAILABLE HEAVY METAL CONCENTRATION OF SANDY LOAM SOIL
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INFLUENCE OF TREATED SEWAGE SLUDGE APPLICATIONS ON TOTAL AND AVAILABLE HEAVY METAL CONCENTRATION OF SANDY LOAM SOIL

机译：污水处理污泥对砂壤土总量和有效重金属含量的影响。

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The objective of this study is to determine influence of treated sewage sludge (TSS) rates on total and available heavy metal concentrations in a sandy loam soil. The experiment was conducted in the experimental fields of Ege Agricultural Research Institute during 2011-2012 in Menemen-Izmir. Study area is in the Western Anatolia region of Turkey (38 degrees 56'87.96"-38 degrees 56'91.02"N; 27 degrees 03'57.52"-27 degrees 03'58.61"E). The field study was conducted in 20 plots in a randomized-block design with four replications and five different applications including control, mineral fertilizer, treated sewage sludge 12.5 Mg.ha(-1); 25.0 Mg.ha(-1); 37.5 Mg.ha(-1) as dry matter. The plots dimensions were 3 m width and 3 m length. Corn (Zea mays) was planted as the first crop. On the other hand, wheat (Triticum vulgare) was planted as the second crop. During the experiment, soil samples were taken five times in two years. Increasing TSS applications to this soil resulted in significantly increased concentrations of total Zn in soil as average of 5 sampling periods. However, concentrations of total Cu, Cd, Cr, Ni and Pb in soil did not significantly change. Total heavy metal concentrations in soil were found under threshold values for all sampling periods in this study. Increasing treated sewage sludge aplications were significiantly increased available (diethylenetriaminepentaacetate-DTPA-extractable) Cu, Ni and Zn concentrations in soil as average of 5 sampling periods when compared with control. However, available Cd, Cr and Pb concentrations in soil did not change significantly.
机译：这项研究的目的是确定处理的污水污泥（TSS）速率对砂壤土中总重金属和有效重金属浓度的影响。该实验于2011年至2012年在Menemen-Izmir的Ege农业研究所的实验领域中进行。研究区域位于土耳其的安纳托利亚西部地区（北纬38度56'87.96“-北纬38度56'91.02”；东经27度03'57.52“ -27度03'58.61”）。该田间研究在20个地块中以随机区组设计进行，具有四次重复和五种不同的应用，包括控制，矿物肥料，处理过的污泥12.5 Mg.ha（-1）； 25.0 Mg.ha（-1）; 37.5 Mg.ha（-1）作为干物质。地块尺寸为3 m宽度和3 m长度。玉米（Zea mays）是第一批作物。另一方面，小麦（Triticum vulgare）被种植为第二作物。在实验过程中，两年内对土壤样品进行了五次采样。在这种土壤上增加的TSS施用量导致平均5个采样期土壤中总Zn浓度显着增加。但是，土壤中的总铜，镉，铬，镍和铅的浓度没有显着变化。在本研究的所有采样期间，土壤中的总重金属浓度均低于阈值。与对照相比，平均5个采样期，处理过的污水污泥处理量的增加显着增加了土壤中可利用的（二亚乙基三胺五乙酸酯-DTPA提取物）铜，镍和锌的浓度。但是，土壤中有效的Cd，Cr和Pb浓度没有显着变化。

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