Priority pollutants in urban stormwater: Part 1 – Case of separate storm sewers

Zgheib, S.; Moilleron, Régis; Chebbo, Ghassan

doi:10.1016/j.watres.2011.12.012

Cited by 258 publications

(156 citation statements)

References 27 publications

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“…Recent studies have shown that many organic contaminants are found in urban runoff at levels exceeding national and international water quality standards (Bj€ orklund et al, 2009(Bj€ orklund et al, , 2011Bressy et al, 2012;Zgheib et al, 2012Zgheib et al, , 2011. The most frequently detected organic pollutants in urban runoff include polycyclic aromatic hydrocarbons (PAHs) e emitted by combustion and petroleum sources (Howsam and Jones, 1998); phthalates e released mainly from plastics such as PVC, where the compounds are used as plasticizers (Bj€ orklund, 2010); and alkylphenols e additives in lubricants, polymers, tire rubber, adhesives etc.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of low-cost materials for sorption of hydrophobic organic pollutants in stormwater

Björklund

2015

Journal of Environmental Management

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Conventional stormwater treatment techniques such as sedimentation and filtration are inefficient for removing the dissolved and colloidal phases of hydrophobic organic compounds (HOCs) present in stormwater. Adsorption could be a promising technique for removing colloidal and dissolved pollutants. Five low-cost sorbent materials were investigated in this project, including two minerals – vermiculite and perlite – and three waste products – two pine barks and a sawdust – as potential adsorbents for removal of polycyclic aromatic hydrocarbons (PAHs), alkylphenols and phthalates; HOCs commonly found in stormwater. Adsorption capacity and kinetics were studied through batch adsorption tests using synthetic stormwater spiked with a mixture of HOCs. Vermiculite and perlite exhibited insignificant removal of the organic contaminants. The three wood-based materials retained >80% of the initial HOC concentration (10-300 μg/L). The two barks exhibited slightly higher adsorption capacities of HOCs than the sawdust. For all compounds tested, maximum adsorption onto the wood-based media was reached in <10 min. The highest adsorption capacity was found for PAHs (up to 45 μg/g), followed by alkylphenols and phthalates. No correlation was found between adsorption capacity and physical-chemical parameters such as solubility and partition coefficients (log K(ow)). Agreement between empirical data and the pseudo-second order kinetic model suggest chemisorption of HOCs onto a monolayer on wood-based media. This could lead to early saturation of the materials and should be investigated in future studies through repeated adsorption of HOCs, for example in column studies.

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Section: Introductionmentioning

confidence: 99%

Evaluation of low-cost materials for sorption of hydrophobic organic pollutants in stormwater

Björklund

2015

Journal of Environmental Management

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“…(Birch et al 2011, Zgheib et al 2012). Treatment of highly-contaminated stormwater may require considerable pollutant removal to achieve water quality standards before release into receiving waters.…”

Section: Production and Application Of Sbacmentioning

confidence: 99%

“…Organic contaminants receive particular attention, as there are currently few data on the use of adsorption to remove them from stormwater. Selected organic compounds -four PAHs (fluorene, anthracene, pyrene and benzo[e]pyrene), two phthalates (dibutyl and di(2-ethylhexyl) phthalate), as well as two alkylphenols (4-t-octyl-and 4-nonylphenol) -were chosen according to reported stormwater detection frequency (Björklund et al 2011, Bressy et al 2012, Zgheib et al 2012, Zgheib et al 2011 and contrasting characteristics such as hydrophobicity and functional groups (Table S1, Supplementary Material).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of organic stormwater pollutants onto activated carbon from sewage sludge

Björklund

2017

Journal of Environmental Management

128

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Adsorption filters have the potential to retain suspended pollutants physically, as well as attracting and chemically attaching dissolved compounds onto the adsorbent. This study investigated the adsorption of eight hydrophobic organic compounds (HOCs) frequently detected in stormwater -including four polycyclic aromatic hydrocarbons (PAHs), two phthalates and two alkylphenols -onto activated carbon produced from domestic sewage sludge. Adsorption was studied using batch tests. Kinetic studies indicated that bulk adsorption of HOCs occurred within 10 min. Sludge-based activated carbon was as efficient as tested commercial carbons for adsorbing HOCs; adsorption capacities ranged from 70 to 2800 µg/g (Cinitial=10-300 µg/L; 15 mg SBAC in 150 mL solution; 24 h contact time) for each HOC. In the batch tests, the adsorption capacity was generally negatively correlated to the compounds' hydrophobicity (log Kow) and positively associated with decreasing molecule size, suggesting that molecular sieving limited adsorption. However, in repeated adsorption tests, where competition between HOCs was more likely to occur, adsorbed pollutant loads exhibited strong positive correlation with log Kow. Sewage sludge as a carbon source for activated carbon has great potential as a sustainable alternative for sludge waste management practices and production of a high-capacity adsorption material.

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“…The most common contaminants, other than sediment, reported in surface and shallow ground waters are metals (see Kang et al, 2009;Kang et al, 2010;Naito et al, 2010;Plauborg et al, 2010;Zgheib et al, 2012). The USA nationwide urban runoff programme found as early as 1983 that heavy metals (including copper, zinc and lead) were the most prevalent priority pollutants in urban runoff within the country; with some metals present often enough, and in signficant enough concentrations, to potentially threaten beneficial uses (USEPA, 1983).…”

Section: Introductionmentioning

confidence: 99%

Associations between stormwater retention pond parameters and pollutant (suspended solids and metals) removal efficiencies

Brink

Kamish²

2018

WSA

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Presented in this paper are the results of correlational analyses and logistic regression between metal substances (Cd, Cu, Pb, Zn), as well as suspended solids removal, and physical pond parameters of 19 stormwater retention pond case studies obtained from the International Stormwater BMP database. Included are cross-correlations between metals and solids in pond influent, effluent and removals. The findings provide insights fundamental to further development of improved models and design guidelines for stormwater ponds. Indications were that (i) pond efficiencies differed between high and low influent concentrations and masses, (ii) concentration was an invalid indicator of correlations between substances in pond influent and effluent as well as the fractions of substances removed within ponds, (iii) total cadmium, copper, lead, zinc and total suspended solids (TSS) were associated in surface runoff and similarly removed within ponds, (iv) statistically significant correlations were often only found in data groups either above or below a specific statistic (quartile value, median) for specific pond parameters, indicating that removals may have been differently influenced by pond parameters over different data ranges, and (v) the volume within the permanent pool was of greater importance to pond efficiencies than the volume captured during storm events.

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Priority pollutants in urban stormwater: Part 1 – Case of separate storm sewers

Cited by 258 publications

References 27 publications

Evaluation of low-cost materials for sorption of hydrophobic organic pollutants in stormwater

Evaluation of low-cost materials for sorption of hydrophobic organic pollutants in stormwater

Adsorption of organic stormwater pollutants onto activated carbon from sewage sludge

Associations between stormwater retention pond parameters and pollutant (suspended solids and metals) removal efficiencies

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