Effect of climate change on humic substances and associated impacts on the quality of surface water and groundwater: A review

Lipczyńska-Kochany, Ewa

doi:10.1016/j.scitotenv.2018.05.376

Cited by 165 publications

(65 citation statements)

References 336 publications

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“…This could substantially increase the treatment costs to remove DOC from groundwater in many locations. Our results indicate that climate change and urban land cover will not only impact the quantity of the groundwater resource 23 , but can also decrease groundwater quality and increase water treatment costs.…”

Section: Resultsmentioning

confidence: 86%

“…This drives availability of vegetation and its decomposition to DOC 21,22 . Changed precipitation, increasing temperatures and evaporation rates and patterns under future climate change scenarios are expected to alter biomass, impact surface water quantity 23 , and subsequently increase domestic and agricultural reliance on groundwater resources. Increasing reliance on groundwater due to climate change impacts may be compounded by urbanization and global population growth which may increase contamination 24 .…”

mentioning

confidence: 99%

“…Increasing reliance on groundwater due to climate change impacts may be compounded by urbanization and global population growth which may increase contamination 24 . Recent research has focused on how climate change and urbanization will change groundwater quantities 25,26 , however understanding the impact of climate change and urbanization on the quality of freshwater resources is also important 23,27 . Establishing links between climate change and groundwater quality requires large datasets to produce meaningful global estimates.…”

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confidence: 99%

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Changes in global groundwater organic carbon driven by climate change and urbanization

et al. 2020

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Climate change and urbanization can increase pressures on groundwater resources, but little is known about how groundwater quality will change. Here, we use a global synthesis (n = 9,404) to reveal the drivers of dissolved organic carbon (DOC), which is an important component of water chemistry and substrate for microorganisms that control biogeochemical reactions. Dissolved inorganic chemistry, local climate and land use explained~31% of observed variability in groundwater DOC, whilst aquifer age explained an additional 16%. We identify a 19% increase in DOC associated with urban land cover. We predict major groundwater DOC increases following changes in precipitation and temperature in key areas relying on groundwater. Climate change and conversion of natural or agricultural areas to urban areas will decrease groundwater quality and increase water treatment costs, compounding existing constraints on groundwater resources.

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Section: Resultsmentioning

confidence: 86%

mentioning

confidence: 99%

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confidence: 99%

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Changes in global groundwater organic carbon driven by climate change and urbanization

et al. 2020

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“…Humic acid (mixture of weak aliphatic and aromatic organic acids with MW range of approximately 10,000 to 100,000) is soluble at pH > 2 and fulvic acid (mixture of weak aliphatic and aromatic organic acids with MW range of approximately 1,000 to 10,000) is soluble at all pH. Fulvic and humic acids are ubiquitous in water systems, and constitute about 10e30% of dissolved NOM in seawater, 70e90% dissolved NOM in wetland water, 40e90% of dissolved NOM in streams and about 50% of dissolved NOM in lake waters, depending on hardness (Xue and Sigg, 1999;Thurman, 2012;Lipczynska-Kochany, 2018a). This is because the presence of hardness cations apparently suppresses the solubility of high molecular weight fulvic acids (Aiken and Malcolm, 1987;Breault et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…Even though underground waters are less sensitive to climate change than surface waters, its quality is also expected to deteriorate due to its exchanges (recharge and discharge) with surface waters (Kjøller et al, 2004) which would have grave consequences on drinking water production and may increase treatment cost. The browning of surface waters by NOM reduces the disinfection capacity as it shield pathogens by absorbing of UV rays (Williamson et al, 2017;Lipczynska-Kochany, 2018a). The formation of disinfection by products (DBPs) in drinking water is expected to rise as well as the release of trace metals into the environment (Lipczynska-Kochany, 2018a).…”

Section: Introductionmentioning

confidence: 99%

Natural organic matter-cations complexation and its impact on water treatment: A critical review

et al. 2019

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a b s t r a c tThe quality and quantity of natural organic matter (NOM) has been observed to evolve which poses challenges to water treatment facilities. Even though NOM may not be toxic itself, its presence in water has aesthetic effects, enhances biological growth in distribution networks, binds with pollutants and controls the bioavailability of trace metals. Even though NOM has heterogeneous functional groups, the predominant ones are the carboxyl and the phenolic groups, which have high affinities for metals depending on the pH. The properties of both the NOM and the trace elements influence the binding kinetics and preferences. Ca 2þ prefers to bind with the carboxylic groups especially at a low pH while Zn 2þ prefers the amine groups though practically, most cations bind to several functions groups. The nature of the chemical environment (neighboring ligands) the ligand finds itself equally influences its preference for a cation. The presence of NOM, cations or a complex of NOM-cations may have significant impact on the efficiency of water processes such as coagulation, adsorption, ion exchange resin and membrane filtration. In coagulation, the complexation between the coagulant salts and NOM helps to remove NOM from solution. This positive influence can further be enhanced by the addition of Ca 2þ . A negative influence is however, observed in lime-softening method as NOM complexes with Ca 2þ . A negative influence is also seen in membrane filtration where divalent cations partially neutralize the carboxyl functional groups of NOM thereby reducing the repulsion effect on NOM and increasing membrane fouling. The formation of disinfection by-products could either be increased or reduced during chlorination, the speciation of products formed is modified with generally the enhancement of haloacetic acid formation observed in presence of metal cations. This current work, presents in details the interactions of cations and NOM in the environment, the preference of cations for each functional group and the possible competition between cations for binding sites, as well as the possible impacts of the presence of cations, NOM, or their complex on water treatment processes.

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Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

Warner

Bekele

Nathanail

et al. 2023

Remediation Journal

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The process of designing a remedy for contaminated groundwater historically has not commonly included climate‐future, hydrologic, and biogeochemical aquifer characteristics. From experience, the remedy design process also has not consistently nor directly integrated or projected future hydrologic and biogeochemical effects of the human‐induced or developed environment—aka the anthropogenic influence—on potential remedy performance. The apparent practice of (1) not regularly assessing anthro‐influenced hydrological (termed here as anthrohydrology) or biogeochemical characteristics (collectively hydrobiogeochemistry) of a site and (2) rarely accounting for future climatic shifts as design factors in remedy design may be due, in part, to the general practice‐level view that groundwater remediation systems (whether in situ or ex situ) have seldom been anticipated to last more than a few years (or one or two decades at the most). Second, methods to reliably and quantitatively estimate site‐specific, climate‐future shifts in groundwater conditions using global and/or regional climate models and the resultant impacts on contaminant plume characteristics have not been readily available. The authors here suggest that while the concept of remedy design resilience and durability, within an envelope of climate change and anthropogenic influence, has been discussed in some technical circles as a component of “sustainable remediation,” we have found that direct application of these technical concepts in quantifiable terms remains rare. By incorporating the potential influence of future hydrobiogeochemical scenarios into remedy design, however, the design process could account for reasonable climate‐induced influence on the groundwater system for a given site. These scenarios could then be applied within the remedy selection process to assess performance durability under potentially changing hydrologic, biological, and chemical conditions.

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Effect of climate change on humic substances and associated impacts on the quality of surface water and groundwater: A review

Cited by 165 publications

References 336 publications

Changes in global groundwater organic carbon driven by climate change and urbanization

Changes in global groundwater organic carbon driven by climate change and urbanization

Natural organic matter-cations complexation and its impact on water treatment: A critical review

Climate‐influenced hydrobiogeochemistry and groundwater remedy design: A review

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