Mixed versus layered multi-media filter for simultaneous removal of nutrients and heavy metals from urban stormwater runoff

Reddy, Krishna R.; Dastgheibi, Sara; Cameselle, Claudio

doi:10.1007/s11356-020-11120-4

Cited by 13 publications

(6 citation statements)

References 44 publications

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“…Environmental pollution is mainly due to anthropogenic reasons, such as the intensive production of household necessities or dense traffic generating toxic emissions, as shown in Figure 1 [ 12 ]. This figure presents the emission sources of different classes of pollutant as well as the types of water that may be affected.…”

Section: Source Of Water Pollutionmentioning

confidence: 99%

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Bio-Based Adsorption as Ecofriendly Method for Wastewater Decontamination: A Review

Vievard

Alem

Pantet

et al. 2023

Toxics

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Intense human activities have for years contributed to the pollution of the environment by many dangerous pollutants such as heavy metals, pesticides, or polycyclic aromatic hydrocarbons. There are many conventional methods used to control pollution, with practical and/or financial drawbacks. Therefore, in recent years, an innovative, easy-to-implement and inexpensive adsorption method has been developed to recover waste and clean up water from micropollutants. Firstly, this article aims to summarize the issues related to water remediation and to understand the advantages and disadvantages of the methods classically used to purify water. In particular, this review aims to provide a recent update of the bio-based adsorbents and their use. Differently from the majority of the reviews related to wastewater treatment, in this article several classes of pollutants are considered. Then, a discussion about the adsorption process and interactions involved is provided. Finally, perspectives are suggested about the future work to be done in this field.

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Section: Source Of Water Pollutionmentioning

confidence: 99%

“…where q e (mg/g) is the amount of pollutant adsorbed per mass of adsorbent at equilibrium, q max (mg/g) is the maximum adsorption capacity, K L (L/mg) is the adsorbent/adsorbate interaction constant, and C e (mg/L) is the concentration of pollutant at equilibrium. The resulting linear form is Equation (12):…”

Section: Single Pollutantmentioning

confidence: 99%

Bio-Based Adsorption as Ecofriendly Method for Wastewater Decontamination: A Review

Vievard

Alem

Pantet

et al. 2023

Toxics

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“…Over the decades, the technology of filtering polluted water through porous beds filled with adsorbents has been established in many areas of environmental engineering, including drinking water provision [11,56,57], mine water treatment [58][59][60], and stormwater treatment [61][62][63]. A common feature for all filtration systems is clogging (permeability loss) resulting from the accumulation of colloids, contaminants, and suspended particles [36,[64][65][66]. Fe 0 filters are characterized by the in situ generation of colloids [31], meaning that, even without any inflow of contaminants and suspended particles, Fe 0 filters may clog, depending on the (kinetics and) extent of Fe 0 corrosion by water [67][68][69].…”

Section: Historical and Fundamental Aspectsmentioning

confidence: 99%

The Suitability of Hybrid Fe0/Aggregate Filtration Systems for Water Treatment

Tao

Yang

Cui

et al. 2022

Water

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Metallic iron (Fe0) corrosion under immersed conditions (Fe0/H2O system) has been used for water treatment for the past 170 years. Fe0 generates solid iron corrosion products (FeCPs) which are known to in situ coat the surface of aggregates, including granular activated carbon (GAC), gravel, lapillus, manganese oxide (MnO2), pyrite (FeS2), and sand. While admixing Fe0 and reactive aggregates to build hybrid systems (e.g., Fe0/FeS2, Fe0/MnO2, Fe0/sand) for water treatment, it has been largely overlooked that these materials would experience reactivity loss upon coating. This communication clarifies the relationships between aggregate addition and the sustainability of Fe0/H2O filtration systems. It is shown that any enhanced contaminant removal efficiency in Fe0/aggregate/H2O systems relative to the Fe0/H2O system is related to the avoidance/delay of particle cementation by virtue of the non-expansive nature of the aggregates. The argument that aggregate addition sustains any reductive transformation of contaminants mediated by electrons from Fe0 is disproved by the evidence that Fe0/sand systems are equally more efficient than pure Fe0 systems. This demonstration corroborates the concept that aqueous contaminant removal in iron/water systems is not a process mediated by electrons from Fe0. This communication reiterates that only hybrid Fe0/H2O filtration systems are sustainable.

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“…Furthermore, the consequences of climate change and global warming could lead to long dry periods (Müller et al 2020), and ADDs complicate the analysis of urban runoff quality (Kim et al 2018). Heavy metals are one of the most important pollutants in urban runoff (Reddy et al 2021). Trace elements, such as copper (Cu), zinc (Zn), and lead (Pb), are common compounds in runoff (Zhao et al 2019).…”

Section: Introductionmentioning

confidence: 99%

The effect of land-use type and climatic conditions on heavy metal pollutants in urban runoff in a semi-arid region

Soltaninia

Taghavi

Hosseini

et al. 2022

Journal of Water Reuse and Desalination

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This study examined the effects of land-use changes on heavy metal pollution in runoff in a catchment of Tehran, Iran. Urban runoff samples were collected from six stations, including five various land uses and mixed land uses. The event mean concentration (EMC) was applied to determine heavy metals, including mercury (Hg), arsenic (As), cadmium (Cd), zinc (Zn), lead (Pb), and copper (Cu), in five land uses. Sampling was done during six events with different antecedent dry days (ADDs) during 2019–2020. The result revealed higher heavy metal concentrations in runoff in the industrial land use compared to other land-use types in the catchment. The calculated EMC rates were as follows: EMC Zn > EMC Pb > EMC Cu > EM As > EMC Hg > EMC Cd. This study also found that the maximum and minimum EMCs of heavy metals were associated with rainfall events with 115 and 1 dry days, respectively. In comparison to other heavy metals, mercury and arsenic were at a higher level in runoff as determined by EMC data analysis. In order to minimize the risk of heavy metal contamination of runoff, the relocation of industrial land uses from urban environments to non-urban areas is recommended.

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Mixed versus layered multi-media filter for simultaneous removal of nutrients and heavy metals from urban stormwater runoff

Cited by 13 publications

References 44 publications

Bio-Based Adsorption as Ecofriendly Method for Wastewater Decontamination: A Review

Bio-Based Adsorption as Ecofriendly Method for Wastewater Decontamination: A Review

The Suitability of Hybrid Fe0/Aggregate Filtration Systems for Water Treatment

The effect of land-use type and climatic conditions on heavy metal pollutants in urban runoff in a semi-arid region

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