当前位置: X-MOL 学术J. Environ. Qual. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Potential for phytoremediation of nonylphenol from sewage sludge
Journal of Environmental Quality ( IF 2.4 ) Pub Date : 2020-03-01 , DOI: 10.1002/jeq2.20048
Qingyun Liu 1, 2 , Zhihong Zhou 3 , Shujie Zhou 3 , Yutao Lei 1 , Kunrong Zhao 1 , Tao Zhao 1 , Qitang Wu 4 , Jinrong Qiu 1
Affiliation  

Nonylphenol (NP) is considered a major contaminant that must be removed to enable safe and environmentally friendly land application of sewage sludge. Phytoremediation is a technology in which plants are used to remove and/or stabilize organic and inorganic contaminants present in the soil, municipal wastewater, and sewage sludge. In this study, a 391-d large pot experiment was conducted to remove NP from sewage sludge by phytoremediation using Zea mays L. 'Yunshi-5', Lolium perenne L., and co-cropping of the two plants. The fate of NP in the soil under the sewage sludge was assessed at the same time. At the end of the experiment, the NP levels in sludge from the various treatments were as follows: control (38.60%) > L. perenne (31.27%) > Z. mays (16.25%) > co-cropping (15.28%). Degradation followed an availability-adjusted first-order kinetics with a decreasing order of half-lives as follows: control (88.2 d) > L. perenne (87.3 d) > co-cropping (66.2 d) > Z. mays (59.1 d). The results indicated that Z. mays and co-cropping could both degrade NP. The concentrations of NP in tissues of different plants differed significantly. The mean bioconcentration factors for Z. mays and L. perenne were 0.16 and 3.69, respectively. Direct removal of NP from sewage sludge by plant uptake was negligible, as was downward movement of NP in the system. Moreover, NP was not detected in soils in any treatments at harvest.

中文翻译:

植物修复污水污泥中壬基酚的潜力

壬基苯酚 (NP) 被认为是一种主要污染物,必须将其去除以实现污水污泥的安全和环保土地应用。植物修复是一种利用植物去除和/或稳定土壤、市政废水和污水污泥中存在的有机和无机污染物的技术。在这项研究中,进行了一个 391 天的大盆实验,通过使用 Zea mays L. 'Yunshi-5', Lolium perenne L. 和两种植物共同种植的植物修复去除污水污泥中的 NP。同时评估了污水污泥下土壤中NP的归宿。在实验结束时,来自各种处理的污泥中 NP 水平如下:对照 (38.60%) > 多年生草 (31.27%) > 玉米 (16.25%) > 共作 (15.28%)。降解遵循可用性调整的一级动力学,半衰期递减顺序如下:对照(88.2 天)> 多年生黑麦草(87.3 天)> 共作(66.2 天)> 玉米(59.1 天) . 结果表明,玉米和共作都可以降解NP。不同植物组织中NP的浓度存在显着差异。Z. mays 和 L. perenne 的平均生物浓度因子分别为 0.16 和 3.69。通过植物吸收直接从污水污泥中去除 NP 可以忽略不计,系统中 NP 的向下移动也是如此。此外,收获时在任何处理的土壤中均未检测到 NP。mays 和共同种植都可以降解 NP。不同植物组织中NP的浓度存在显着差异。Z. mays 和 L. perenne 的平均生物浓度因子分别为 0.16 和 3.69。通过植物吸收直接从污水污泥中去除 NP 可以忽略不计,系统中 NP 的向下移动也是如此。此外,收获时在任何处理的土壤中均未检测到 NP。mays 和共同种植都可以降解 NP。不同植物组织中NP的浓度存在显着差异。Z. mays 和 L. perenne 的平均生物浓度因子分别为 0.16 和 3.69。通过植物吸收直接从污水污泥中去除 NP 可以忽略不计,系统中 NP 的向下移动也是如此。此外,收获时在任何处理的土壤中均未检测到 NP。
更新日期:2020-03-01
down
wechat
bug