在向闭环经济转变的背景下,来自垃圾填埋场的类似土壤的部分越来越被视为潜在的原材料。污染,包括潜在有毒元素(PTE),限制了类似土壤的部分的使用。研究目的是在分位数分析的基础上,使用间隔方法评估PTEs的污染水平和垃圾填埋场土壤样部分的生态风险。分位数分析允许使用数据的累积分布函数基于统计原理对数据进行可视化和解释。分位数按概率将整个数据集分成相等的部分,它们表示值小于或等于给定分位数的观测值的比例。在伏尔加格勒的一个垃圾填埋场进行了一项研究。Cd的含量,Ni,Pb,Hg,Cu,和Zn在类似土壤的部分中进行了研究。汞的含量,Pb,锌含量较低,对环境没有任何风险。Cd,Ni,和Cu是污染类土壤部分的主要原因。分位数分析表明,类似土壤的部分受到不均匀的污染,并通过几种污染水平来描述。类土壤部分中PTEs的污染水平较低,概率为27-31%。土壤样部分的另一部分的污染水平从中等到非常高。类土壤部分的环境风险与Cd和Ni有关。概率为23.5%,类似土壤的部分是高度环境风险,需要负责任的态度和措施来确保环境安全。概率分别为29.4%和47.1%,类似土壤的部分的复杂潜在环境风险是低而中等的,分别。位于2.5m以上深度的类土壤部分污染水平低,环境风险低。有可能,土壤样部分的这一部分可以被隔离,戒毒后,used.这项研究的意义在于提供一种新颖的方法来评估垃圾填埋场土壤样部分的生态风险,这可以为垃圾填埋场采矿中更有效的可持续废物利用实践提供信息。
In the context of the shift toward a closed-loop economy, soil-like fractions from landfills are increasingly seen as a potential raw material. Pollution, including potentially toxic elements (PTEs), limits the use of soil-like fractions. The study objective was to assess the level of contamination with PTEs and the ecological risk of the soil-like fraction from a landfill using an interval method on the basis of a quantile analysis. Quantile analysis allows visualization and interpretation of data based on statistical principles using a cumulative distribution function for the data. Quantiles divide the entire dataset into equal parts by probability, and they indicate the proportion of observations that have a value less than or equal to a given quantile. A study was conducted at a landfill in Volgograd. The contents of Cd, Ni, Pb, Hg, Cu, and Zn were studied in a soil-like fraction. The contents of Hg, Pb, and Zn were low and did not pose any risks to the environment. Cd, Ni, and Cu were the main reasons for the contamination of the soil-like fraction. Quantile analysis has shown that the soil-like fraction is polluted unevenly and is described by several contamination levels. The pollution level with PTEs in the soil-like fraction is low, with a probability of 27-31%. The other part of the soil-like fraction has a pollution level ranging from moderate to very high. The environmental risk of a soil-like fraction is associated with Cd and Ni. With a probability of 23.5%, a soil-like fraction is a high environmental risk and requires a responsible attitude and measures to ensure environmental safety. With probabilities of 29.4% and 47.1%, the complex potential environmental risks of a soil-like fraction are low and moderate, respectively. The soil-like fraction located at a depth of more than 2.5 m has a low level of pollution and a low environmental risk. Potentially, this part of a soil-like fraction can be isolated and, after detoxification, used. The significance of this research lies in providing a novel approach to evaluate the ecological risk of soil-like fractions from landfills, which can inform more effective sustainable waste utilization practices in landfill mining.