Sequential extraction of heavy metals from sorptive filter media and sediments trapped in stormwater quality improvement devices for road runoff

AbstractCurrent knowledge about the microbial communities inhabiting the stormwater quality improvement devices (SQIDs) for road runoff is scarce. However, as a bioactive compound of these systems, microbes can facilitate water quality improvement through the biodegradation or precipitation of dissolved contaminants. On the other hand, these contaminants may select for stress resistant opportunistic microbial strains, which are discharged into surface waters or groundwater. In this study, the microbial community of two SQIDs with different design were analyzed to determine the microbial load, retention, composition, and mobile resistance genes in the filter media and the microbial composition in the treated runoff. The bacterial abundance of the SQIDs was relatively stable over time in effluent water samples. Although the microbes were replaced by new taxa in the effluent, there was no major retention of cells or microbial genera. The communities were influenced both by seasonality and by the SQID design. The heavy metal content of the SQIDs was correlated to intl1 and distinct microbial groups. The filter media led to an enrichment and subsequent discharge of Intl1 gene cassettes carrying several heavy metal and multidrug resistance genes (e.g. czrA, czcA, silP, mexW and mexI). Overall, the results suggest that different engineering designs affect the bacterial communities of the SQIDs, and subsequently influence the microbial community and the genes released with the treated water.

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A REVIEW ON THE APPLICATION OF GRANULAR FILTER MEDIA AND THE UTILIZATION OF AGRO-INDUSTRIAL WASTES FOR STORMWATER QUALITY IMPROVEMENT

Jurnal Teknologi ◽

10.11113/jurnalteknologi.v83.15159 ◽

2021 ◽

Vol 83 (4) ◽

pp. 75-90

Author(s):

Awang Nasrizal Awang Ali ◽

Nurmin Bolong ◽

Nazaruddin Abdul Taha

Keyword(s):

Quality Improvement ◽

Best Management Practices ◽

Stormwater Management ◽

Management Practices ◽

Industrial Wastes ◽

Stormwater Quality ◽

Filter Media ◽

Granular Filter ◽

The Impact ◽

Granular Filter Media

The stormwater management practices have changed from conveyance-oriented to storage-oriented, as part of the Best Management Practices (BMPs). Still, uncontrolled development increases potential pollutants in the stormwater, which conveys into a water body or river. Continuous improvements in the filtration mechanism would complement stormwater management. For the past decades, there is progress in applying granular filter media for stormwater quality improvement. However, the reports were not systematically reviewed. In this paper, the recent five years research that utilizes granular filter media for improving stormwater quality was retrieved and reviewed. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was referred to, where Scopus and Web of Sciences, two primary journal databases, were used. Initially, keywords searching strings have resulted in 467 articles, which were further screened. Four themes have been formed: stormwater management, stormwater characteristics, separation mechanisms, and future perspectives. Next, two sub-themes and two sub-sub-themes were further established. Then, 65 articles were included manually to complement the themes developed to explore the potential agro-industrial wastes as sustainable filter media. Therefore, this review has proven that the relatively inexpensive and renewable resources from the agro-industrial wastes can remove pollutants efficiently from the stormwater. Four main criteria affecting filter media performances are also highlighted, including the grain sizes of the media, media bed configuration, hydraulic loading rate, and the suspended solids concentration. Further study on these variables can be beneficial to explore the impact of utilizing agro-based media in stormwater filtration.

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Microbial retention and resistances in stormwater quality improvement devices treating road runoff

FEMS Microbes ◽

10.1093/femsmc/xtab008 ◽

2021 ◽

Author(s):

Renato Liguori ◽

Steffen H Rommel ◽

Johan Bengtsson-Palme ◽

Brigitte Helmreich ◽

Christian Wurzbacher

Keyword(s):

Heavy Metal ◽

Quality Improvement ◽

Microbial Community ◽

Microbial Communities ◽

Resistance Genes ◽

Current Knowledge ◽

Hot Spot ◽

Road Runoff ◽

Stormwater Quality ◽

Dissolved Heavy Metals

Abstract Current knowledge about the microbial communities that occur in in urban road runoff is scarce. Road runoff of trafficked roads can be heavily polluted and is treated by stormwater quality improvement devices (SQIDs). However, microbes may influence the treatment process of these devices or could lead to stress resistant opportunistic microbial strains. In this study, the microbial community in the influent, effluent and the filter materials for the removal of dissolved heavy metals of two different SQIDs were analyzed to determine the microbial load, retention, composition, and mobile resistance genes. Although the microbes were replaced by new taxa in the effluent, there was no major retention of microbial genera. Further, the bacterial abundance of the SQIDs effluent was relatively stable over time. The heavy metal content correlated with intl1 and with microbial genera. The filter media itself was enriched with Intl1 gene cassettes, carrying several heavy metal and multidrug resistance genes (e.g. czrA, czcA, silP, mexW and mexI), indicating that this is a hot spot for horizontal gene transfer. Overall, the results shed light on road runoff microbial communities, and pointed to distinct bacterial communities within the SQIDs, which subsequently influence the microbial community and the genes released with the treated water.

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An Assessment of Heavy Metal Contamination in the Nakdong River Around the Weir

Water ◽

10.3390/w13050684 ◽

2021 ◽

Vol 13 (5) ◽

pp. 684

Author(s):

Hee Won Son ◽

Sun Hee Shim ◽

Haeseong Oh ◽

Jung Hyun Choi

Keyword(s):

Heavy Metals ◽

Sequential Extraction ◽

Environmental Protection Agency ◽

Heavy Metal Contamination ◽

Environmental Research ◽

Residual Fraction ◽

Nakdong River ◽

Risk Assessment Code ◽

The Nakdong River ◽

Reducible Fraction

In this study, the concentrations and characteristics of copper (Cu), zinc (Zn), and lead (Pb) contamination in sediment samples were investigated using aqua regia extraction and Tessier’s five-step sequential extraction. Based on the concentration of metals, the influence of the Hapcheon-Changnyeong weir on sediments in the Nakdong River was assessed. The origins of the contaminants, their bioavailability, and their mobility were determined using sequential extraction. Greater concentrations of heavy metals were found in samples collected closer to the weir. The largest proportion of Cu was identified in the residual fraction based on sequential extraction, whereas Zn was predominantly found in the reducible fraction. Iron-manganese in the reducible fraction of Zn has the potential to leach back to the water body. In addition, the combined concentration of fractions 1 and 2 of Cu comprised more than 20% of total amount that still has potential to affect the water quality. The results of this study were compared with existing sediment standards set out by the NIER (National Institute of Environmental Research), Canada, and US EPA (United States Environmental Protection Agency) guidelines, as well as the risk assessment code (RAC). The concentrations of heavy metals exceeded the standards set by the Canadian guideline by up to four times in particular samples, highlighting the need for continual monitoring.

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Research on the Morphological of Lead and Zinc in the Smelting Slag

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1088.200 ◽

2015 ◽

Vol 1088 ◽

pp. 200-205

Author(s):

Lin Yu ◽

Dong Wei Li

Keyword(s):

Heavy Metals ◽

Sequential Extraction ◽

Ecological Risk ◽

Total Content ◽

Residual Fraction ◽

Bcr Sequential Extraction ◽

Lead And Zinc ◽

Smelting Slag ◽

Reducible Fraction

In this paper analysed the forms of heavy metals (Zn Pb Cd and As) of the Smelting Slag for Lead and Zinc,using BCR sequential extraction. Different chemical morphological of heavy metals have different activity and harmfulness. Migration and Utilization of heavy metals were decided by the existent form of heavy metals in the soil,which influenced Bioactivity and Toxicity. The results show that the main forms of Zn and Cd are Oxidizable and Residual fraction, and Pb mainly occurred in Oxidizable and Reducible fraction. however, As mainly occurred in Residual fraction, which the percentage of reachs 99.56%. According to the percentage of fractions extracted in total content (As is 0.44%, Zn is 14.7%, Pb is 85.98%, Cd is 48.86%),the latent ecological risk of heavy metals varied in the descending order of,Pb Cd Zn and As.

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Sequential extraction analysis of heavy metals using a chelating agent (NTA) to counteract resorption

Environmental Pollution ◽

10.1016/0269-7491(95)00023-k ◽

1996 ◽

Vol 91 (1) ◽

pp. 89-96 ◽

Cited By ~ 43

Author(s):

Jeffrey L. Howard ◽

Jianing Shu

Keyword(s):

Heavy Metals ◽

Sequential Extraction ◽

Chelating Agent ◽

Sequential Extraction Analysis

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Sequential extraction of heavy metals in soils from a copper mine: Distribution in geochemical fractions

Geoderma ◽

10.1016/j.geoderma.2014.04.011 ◽

2014 ◽

Vol 230-231 ◽

pp. 108-118 ◽

Cited By ~ 73

Author(s):

D. Arenas-Lago ◽

M.L. Andrade ◽

M. Lago-Vila ◽

A. Rodríguez-Seijo ◽

F.A. Vega

Keyword(s):

Heavy Metals ◽

Sequential Extraction ◽

Copper Mine ◽

Geochemical Fractions ◽

Heavy Metals In Soils

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Sequential extraction of anaerobic digestate sludge for the determination of partitioning of heavy metals

Ecotoxicology and Environmental Safety ◽

10.1016/j.ecoenv.2013.12.033 ◽

2014 ◽

Vol 102 ◽

pp. 18-24 ◽

Cited By ~ 43

Author(s):

Neng-min Zhu ◽

Qiang-Li ◽

Xu-jing Guo ◽

Hui-Zhang ◽

Yu-Deng

Keyword(s):

Heavy Metals ◽

Sequential Extraction ◽

Anaerobic Digestate

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Understanding the factors influencing the removal of heavy metals in urban stormwater runoff

Water Science & Technology ◽

10.2166/wst.2016.153 ◽

2016 ◽

Vol 73 (12) ◽

pp. 2921-2928 ◽

Cited By ~ 3

Author(s):

Marla C. Maniquiz-Redillas ◽

Lee-Hyung Kim

Keyword(s):

Heavy Metals ◽

Fine Particles ◽

Metal Removal ◽

Low Impact Development ◽

Heavy Metal Removal ◽

Stormwater Runoff ◽

Winter Season ◽

Filter Media ◽

Factors Influencing ◽

Removal Of Heavy Metals

Abstract In this research, an infiltration trench equipped with an extensive pretreatment and filter bed consisting of woodchip, sand and gravel was utilized as a low impact development technique to manage stormwater runoff from a highly impervious road with particular emphasis on heavy metal removal. Findings revealed that the major factors influencing the removal of heavy metals were the concentration of the particulate matters and heavy metals in runoff, runoff volume and flow rates. The reduction of heavy metals was enhanced by sedimentation of particulates through pretreatment. Fine particles (<2 mm) had the most significant amount of heavy metals, thus, enhanced adsorption and filtration using various filter media were important design considerations. Sediment was most highly attached on the surface area of woodchip than to other filter media like sand, gravel and geotextile. It is suggested that maintenance must be performed after the end of the winter season wherein high sediment rate was observed to maintain the efficiency of the treatment system.

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