Accumulation of vanadium and arsenic by cast iron pipe scales under drinking water conditions: A batch study

He, Nan; Tian, Yuan; Liu, Chuntong; Zhao, Weigao; Liu, Ran; Huang, Jianjun

doi:10.1016/j.chemosphere.2020.129396

Cited by 18 publications

(6 citation statements)

References 64 publications

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“…The metal accumulation in corrosion scale represents a threat to the population's health. A maximum accumulation rate of 3.94 mg vanadium/g of scale and 3.90 mg arsenic/g of scale, respectively, was found by He et al (2021) on scales from cast iron pipe (20 years operation time) [132]. The accumulation rate depends on various factors, such as pH and temperature.…”

Section: Ironmentioning

confidence: 93%

“…Corrosion scales formed on the surface of pipes consist mainly of lepidocrocite (γ-FeOOH), magnetite (Fe3O4), goethite The solid corrosion products that build up thick corrosion scale are responsible for pipe blockage, leakage, and red water formation [128,129]. Corrosion scales formed on the surface of pipes consist mainly of lepidocrocite (γ-FeOOH), magnetite (Fe 3 O 4 ), goethite (α-FeOOH), hematite (Fe 2 O 3 ), and ferrihydrite [130][131][132]. All these minerals have strong affinities to adsorb heavy metals (lead > vanadium > chromium > copper > arsenic > zinc > cadmium > nickel > uranium) [130].…”

Section: Ironmentioning

confidence: 99%

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The Behavior of Polymeric Pipes in Drinking Water Distribution System—Comparison with Other Pipe Materials

Stefan,

Bosomoiu,

Teodorescu

2023

Polymers

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The inner walls of the drinking water distribution system (DWDS) are expected to be clean to ensure a safe quality of drinking water. Complex physical, chemical, and biological processes take place when water comes into contact with the pipe surface. This paper describes the impact of leaching different compounds from the water supply pipes into drinking water and subsequent risks. Among these compounds, there are heavy metals. It is necessary to prevent these metals from getting into the DWDS. Those compounds are susceptible to impacting the quality of the water delivered to the population either by leaching dangerous chemicals into water or by enhancing the development of microorganism growth on the pipe surface. The corrosion process of different pipe materials, scale formation mechanisms, and the impact of bacteria formed in corrosion layers are discussed. Water treatment processes and the pipe materials also affect the water composition. Pipe materials act differently in the flowing and stagnation conditions. Moreover, they age differently (e.g., metal-based pipes are subjected to corrosion while polymer-based pipes have a decreased mechanical resistance) and are susceptible to enhanced bacterial film formation. Water distribution pipes are a dynamic environment, therefore, the models that are used must consider the changes that occur over time. Mathematical modeling of the leaching process is complex and includes the description of corrosion development over time, correlated with a model for the biofilm formation and the disinfectants–corrosion products and disinfectants–biofilm interactions. The models used for these processes range from simple longitudinal dispersion models to Monte Carlo simulations and 3D modeling. This review helps to clarify what are the possible sources of compounds responsible for drinking water quality degradation. Additionally, it gives guidance on the measures that are needed to maintain stable and safe drinking water quality.

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Section: Ironmentioning

confidence: 93%

Section: Ironmentioning

confidence: 99%

The Behavior of Polymeric Pipes in Drinking Water Distribution System—Comparison with Other Pipe Materials

Stefan,

Bosomoiu,

Teodorescu

2023

Polymers

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“…Needle-like structures in scales containing As(V) have been observed previously. 35 Samples from pipe 2 were morphologically more homogenous but exhibited varying degrees of agglomeration (Fig. 2b).…”

Section: Physicochemical Characterization Of Scalesmorphology Element...mentioning

confidence: 98%

“…Similar phases have been identified in corrosion scales analyzed in the literature. 32,35,37,49 Iron oxides including magnetite, goethite and lepidocrocite have strong affinities for trace metals whilst still being stable in WDSs. 50 As previously mentioned, WDS-2 was fed with a surface water which typically contains high Cl and SO 4 concentrations.…”

Section: S2b †) a Limited Proportion Of Morphologically Flat Particle...mentioning

confidence: 99%

“…The scientific literature contains a range of detailed information on pipe scale characteristics, which is vital given their potential impact upon water quality for the consumer. 8,[31][32][33][34][35] However, it is equally important to determine how these pipe scales behave under different conditions and their potential to release harmful components into the water supply network. Indeed, release experiments are critical for determining the behavior of Fe, Mn, Al, As and other metals under differing/changing water conditions.…”

Section: Introductionmentioning

confidence: 99%

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Heavy metal, organic matter, and disinfection byproduct release from drinking water pipe scales under stagnant conditions

Kurajica

Bošnjak

Kinsela

et al. 2023

Environ. Sci.: Water Res. Technol.

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Cr release after Cr(III) and Cr(VI) enrichment from different layers of cast iron corrosion scales in drinking water distribution systems: the impact of pH, temperature, sulfate, and chloride

Tian

Shen

et al. 2021

Environ Sci Pollut Res

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Accumulation of vanadium and arsenic by cast iron pipe scales under drinking water conditions: A batch study

Cited by 18 publications

References 64 publications

The Behavior of Polymeric Pipes in Drinking Water Distribution System—Comparison with Other Pipe Materials

The Behavior of Polymeric Pipes in Drinking Water Distribution System—Comparison with Other Pipe Materials

Heavy metal, organic matter, and disinfection byproduct release from drinking water pipe scales under stagnant conditions

Cr release after Cr(III) and Cr(VI) enrichment from different layers of cast iron corrosion scales in drinking water distribution systems: the impact of pH, temperature, sulfate, and chloride

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