Factors affecting the concentrations of pharmaceutical compounds in river and groundwaters: efficiency of riverbank filtration (Mosina-Krajkowo well field, Poland)

IF 0.9 4区 地球科学 Q3 GEOLOGY
Roksana Kruć-Fijałkowska, K. Dragon, D. Drożdżyński
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引用次数: 0

Abstract

Pharmaceutical compounds were investigated in river and riverbank filtration (RBF) water at the Mosina-Krajkowo site (Poland), in 6 sampling campaigns between November 2019 and June 2020. All of the ten pharmaceutical compounds tested for were detected in the water. Carbamazepine, fluconazole, tramadol, sulphamethoxazole and sulphapyridine were the most frequently found, the highest concentrations being observed in surface water. There was a reduction in their levels in the horizontal well (HW) with drains located below the river bottom, averaging 17%. Significantly higher reductions (53–71%) were observed in vertical wells (VWs). Mixing, sorption and biodegradation were distinguished as processes conditioning the reduction of pharmaceutical compounds along flow paths from the river to the wells. Their reduction in the HW occurs due to sorption onto fine sediments with high organic matter content and aerobic biodegradation, while in the VWs it is the effect of aerobic biodegradation and water mixing with unpolluted groundwater. Sorption on riverbed fine sediments can also occur, especially during low water levels in the river. Biodegradation develops in oxic conditions with aerobic bacteria. VWs located at similar distances from the river yielded different concentrations of pharmaceutical compounds, because of differences in geological structure, hydrogeological conditions and well operation parameters.
影响河流和地下水中药物化合物浓度的因素:河岸过滤效率(波兰Mosina Krajkowo井场)
在2019年11月至2020年6月的6次采样活动中,对莫西纳-克拉伊科沃(波兰)的河流和河岸过滤(RBF)水中的药物化合物进行了调查。所有被检测的10种药物化合物都在水中检测到。卡马西平、氟康唑、曲马多、磺胺甲恶唑和磺胺吡啶是最常见的,在地表水中观察到的浓度最高。在排水管位于河底以下的水平井(HW)中,它们的水平平均降低了17%。直井(vw)的降幅更大(53-71%)。混合、吸附和生物降解被区分为调节从河流到水井的流动路径上药物化合物的减少的过程。它们在HW中的减少是由于被高有机质含量的细沉积物吸附和好氧生物降解,而在vw中则是好氧生物降解和水与未污染的地下水混合的结果。河床细沉积物的吸附也会发生,特别是在河流水位低的时候。生物降解在有氧条件下与好氧细菌一起进行。由于地质构造、水文地质条件和井作业参数的差异,距离河流相似的车辆产生的药物化合物浓度不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geological Quarterly
Geological Quarterly 地学-地质学
CiteScore
2.20
自引率
0.00%
发文量
19
审稿时长
>12 weeks
期刊介绍: The policy of the Geological Quarterly is to publish significant contributions of information and geological insight relevant to an international readership. The journal has been issued since 1957 at the Polish Geological Institute - National Research Institute and, at present, is the leading Earth sciences journal in Poland. All aspects of Earth and related sciences, and universal and broad regional rather than locally oriented topics are covered. The journal is intended to be an international forum for the exchange of information and ideas, particularly on important geological topics of Central Europe.
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