Rinklebe Jörg, Shaheen Sabry M
University of Wuppertal, Department D, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
University of Wuppertal, Department D, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516 Kafr El-Sheikh, Egypt.
Ecotoxicol Environ Saf. 2015 Sep;119:58-65. doi: 10.1016/j.ecoenv.2015.04.046. Epub 2015 May 14.
The problem of copper (Cu) pollution in riverine ecosystems is world-wide and has significant environmental, eco-toxicological, and agricultural relevance. We assessed the suitability and effectiveness of application rate of 1% of activated charcoal, bentonite, biochar, cement kiln dust, chitosan, coal fly ash, limestone, nano-hydroxyapatite, organo-clay, sugar beet factory lime, and zeolite as soil amendments together with rapeseed as bioenergy crop as a possible remediation option for a heavily Cu polluted floodplain soil (total Cu=3041.9mgkg(-1)) that has a very high proportion of sorbed/carbonate fraction (484.6mgkg(-1)) and potential mobile fraction of Cu (1611.9mgkg(-1)). Application changed distribution of Cu among geochemical fractions: alkaline materials lead to increased carbonate bounded fraction and the acid rhizosphere zone might cause release of this Cu. Thus, mobilization of Cu and uptake of Cu by rapeseed were increased compared to the control (except for organo-clay) under the prevailing conditions.
河流生态系统中的铜（Cu）污染问题在全球范围内存在，并且具有重大的环境、生态毒理学和农业相关性。我们评估了将1%的活性炭、膨润土、生物炭、水泥窑灰、壳聚糖、粉煤灰、石灰石、纳米羟基磷灰石、有机粘土、甜菜制糖厂石灰和沸石作为土壤改良剂，以及将油菜作为生物能源作物一起应用，作为对铜污染严重的河漫滩土壤（总铜含量=3041.9mg/kg(-1)）进行修复的一种可能选择的适用性和有效性，该土壤具有非常高比例的吸附/碳酸盐部分（484.6mg/kg(-1)）和潜在的铜可移动部分（1611.9mg/kg(-1)）。施用改变了铜在地球化学组分中的分布：碱性物质导致碳酸盐结合部分增加，而酸性根际区可能导致这种铜的释放。因此，在当前条件下，与对照相比（有机粘土除外），油菜对铜的活化和吸收增加。
