Sources and behavior of ammonium during riverbank filtration

被引：49

作者：

Covatti, Gustavo ^{[1
]}

Grischek, Thomas ^{[1
]}

机构：

[1] Dresden Univ Appl Sci, Friedrich List Pl 1, D-01069 Dresden, Germany

来源：

WATER RESEARCH | 2021年 / 191卷

关键词：

Riverbank filtration; Ammonium; Water quality; Well management; Hyporheic zone; Nitrate; DISSIMILATORY NITRATE REDUCTION; FACTORS AFFECTING DENITRIFICATION; WATER-QUALITY CHANGES; LAKE BANK FILTRATION; HYPORHEIC ZONE; NITROGEN TRANSFORMATIONS; SURFACE-WATER; BIOGEOCHEMICAL PROCESSES; ISOTOPE FRACTIONATIONS; PORE-WATER;

D O I：

10.1016/j.watres.2020.116788

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ammonium is an undesirable substance in the abstracted water of riverbank filtration (RBF) schemes, due mainly to the complications it causes during post-treatment. Based on the investigation of case studies from 40 sites around the world, an overview of the sources and behavior of ammonium during RBF is given. Typical concentrations of ammonium in the bank filtrate (BF) are between 0.1 and 1.7 mg/l. The most common source of ammonium in BF is the mineralization of organic nitrogen occurring in the riverbed, while the most common sink of ammonium is nitrification in the riverbed. Ammonium surface water concentrations do not directly translate to abstracted concentrations. Transformations in the riverbed play a critical role in determining ammonium concentrations, whereby riverbeds with high amounts of organic material will have more electron donor competitors for oxygen, thus limiting ammonium attenuation via nitrification. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：18

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