Performance study of vertical flow constructed wetlands for phosphorus removal with water quenched slag as a substrate

Li, Haibo; Li, Yinghua; Gong, Zongqiang; Li, Xiaodong

doi:10.1016/j.ecoleng.2013.01.011

Cited by 45 publications

(14 citation statements)

References 29 publications

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“…Adsorbents that are used in passive (bio)remediation systems (e.g., constructed wetlands or permeable reactive barriers) act as: (i) natural filters (barriers) retaining heavy metals by physico-chemical sorption, and (ii) carriers for microorganisms involved in water treatment (Li et al, 2013 ; Meng et al, 2014 ; Hua et al, 2015 ). Therefore, the effectiveness of PbRS is determined by the quality of the (ad)sorbents, which should be selected based on their range of applications and stability under various environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Granulated Bog Iron Ores as Sorbents in Passive (Bio)Remediation Systems for Arsenic Removal

et al. 2018

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The main element of PbRS (passive (bio)remediation systems) are sorbents, which act as natural filters retaining heavy metals and carriers of microorganisms involved in water treatment. Thus, the effectiveness of PbRS is determined by the quality of the (ad)sorbents, which should be stable under various environmental conditions, have a wide range of applications and be non-toxic to (micro)organisms used in these systems. Our previous studies showed that bog iron ores (BIOs) meet these requirements. However, further investigation of the physical and chemical parameters of BIOs under environmental conditions is required before their large-scale application in PbRS. The aim of this study was (i) to investigate the ability of granulated BIOs (gBIOs) to remove arsenic from various types of contaminated waters, and (ii) to estimate the application potential of gBIOs in technologies dedicated to water treatment. These studies were conducted on synthetic solutions of arsenic and environmental samples of arsenic contaminated water using a set of adsorption columns filled with gBIOs. The experiments performed in a static system revealed that gBIOs are appropriate arsenic and zinc adsorbent. Dynamic adsorption studies confirmed these results and showed, that the actual sorption efficiency of gBIOs depends on the adsorbate concentration and is directly proportional to them. Desorption analysis showed that As-loaded gBIOs are characterized by high chemical stability and they may be reused for the (ad)sorption of other elements, i.e., zinc. It was also shown that gBIOs may be used for remediation of both highly oxygenated waters and groundwater or settling ponds, where the oxygen level is low, as both forms of inorganic arsenic (arsenate and arsenite) were effectively removed. Arsenic concentration after treatment was <100 μg/L, which is below the limit for industrial water.

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Section: Introductionmentioning

confidence: 99%

Granulated Bog Iron Ores as Sorbents in Passive (Bio)Remediation Systems for Arsenic Removal

et al. 2018

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“…Currently, it has been proven that CWs can serve as a cost-effective and promising alternative to conventional wastewater treatment methods for removing or reducing a wide variety of contaminant such as nitrogen, phosphorous, and chemical oxygen demand (COD) (Lin et al, 2002;Hu et al, 2012b;Li et al, 2013;Wang et al, 2013), and even antibiotics (Hijosa-Valsero et al, 2011;Liu et al, 2013b;Berglund et al, 2014;Chen et al, 2014) and ARGs (Liu et al, 2013b;Chen et al, 2014). However, most of the previous studies focus on the single removal of nitrogen, or phosphorous, or antibiotics by CWs.…”

Section: Introductionmentioning

confidence: 99%

Removal of antibiotics and antibiotic resistance genes from domestic sewage by constructed wetlands: Optimization of wetland substrates and hydraulic loading

Chen

Wei

Liu

et al. 2016

Science of The Total Environment

246

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“…Previous studies demonstrated that CWs are capable of removing a majority of environmental pollutants including nitrogen, phosphorous, chemical oxygen demand (COD) (Lin et al, 2002a;Hu et al, 2012;Li et al, 2013;Wang et al, 2013), and emerging contaminants such as antibiotics (Hijosa-Valsero et al, 2011;Berglund et al, 2014;Chen et al, 2015) and ARGs Chen et al, 2015). Their performance depends on the design parameters such as plant species, flow types, substrates, hydraulic loading rates, hydraulic retention time and applied pollutants loadings (Hijosa-Valsero et al, 2010;Hijosa-Valsero et al, 2011;Saeed and Sun, 2012;Weerakoon et al, 2013;Wu et al, 2014;Wu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Removal of antibiotics and antibiotic resistance genes from domestic sewage by constructed wetlands: Effect of flow configuration and plant species

Chen

Ying

Wei

et al. 2016

Science of The Total Environment

179

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Performance study of vertical flow constructed wetlands for phosphorus removal with water quenched slag as a substrate

Cited by 45 publications

References 29 publications

Granulated Bog Iron Ores as Sorbents in Passive (Bio)Remediation Systems for Arsenic Removal

Granulated Bog Iron Ores as Sorbents in Passive (Bio)Remediation Systems for Arsenic Removal

Removal of antibiotics and antibiotic resistance genes from domestic sewage by constructed wetlands: Optimization of wetland substrates and hydraulic loading

Removal of antibiotics and antibiotic resistance genes from domestic sewage by constructed wetlands: Effect of flow configuration and plant species

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