Recent advances in the source identification and remediation techniques of nitrate contaminated groundwater: A review

被引:47
作者
Richa, Amina [1 ]
Touil, Sami [1 ]
Fizir, Meriem [2 ]
机构
[1] Univ Djilali Bounaama, Khemis Miliana, Algeria
[2] Univ Djilali Bounaama, Lab Valorisat Subst Naturelles, Khemis Miliana, Algeria
关键词
Groundwater; Nitrate; Pollution; Remediation; Nitrate isotopes; Denitrification; PERMEABLE REACTIVE BARRIER; COMPOSITE CARBON ELECTRODE; MEMBRANE BIOFILM REACTOR; ZERO-VALENT MAGNESIUM; SIMULTANEOUS REMOVAL; AUTOTROPHIC DENITRIFICATION; CAPACITIVE DEIONIZATION; HETEROTROPHIC DENITRIFICATION; SELECTIVE REMOVAL; ISOTOPIC APPROACH;
D O I
10.1016/j.jenvman.2022.115265
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Researchers have long been committed to identify nitrate sources in groundwater and to develop an advanced technique for its remediation because better apply remediation solution and management of water quality is highly dependent on the identification of the NO3- sources contamination in water. In this review, we systematically introduce nitrate source tracking tools used over the past ten years including dual isotope and multi isotope techniques, water chemistry profile, Bayesian mixing model, microbial tracers and land use/cover data. These techniques can be combined and exploited to track the source of NO3- as mineral or organic fertilizer, sewage, or atmospheric deposition. These available data have significant implications for making an appropriate measures and decisions by water managers. A continuous remediation strategy of groundwater was among the main management strategies that need to be applied in the contaminated area. Nitrate removal from groundwater can be accomplished using either separation or reduction based process. The application of these processes to nitrate removal is discussed in this review and some novel methods were presented for the first time. Moreover, the advantages and limitations of each approach are critically summarized and based on our own understanding of the subject some solutions to overcomes their drawbacks are recommended. Advanced techniques are capable to attain significantly higher nitrate and other co-contaminants removal from groundwater. However, the challenges of by-products generation and high energy consumption need to be addressed in implementing these technologies for groundwater remediation for potable use.
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页数:23
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