Adsorption of mixtures of nutrients and heavy metals in simulated urban stormwater by different filter materials

Reddy, Krishna R.; Xie, Tao; Dastgheibi, Sara

doi:10.1080/10934529.2014.859030

Cited by 41 publications

(12 citation statements)

References 54 publications

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“…However, it is believed that clayey soils, and those containing Iron oxides like Ultisols from Tamansari, can immobilize metals, requiring higher amounts of dolomite or other limes compared to sandy and loamy soils (Suda & Makino, 2016). Similar findings were revealed by Reddy et al (2014). They studied the efficiency of Zeolite and lime on the removal of Cd from wastewater.…”

Section: Incubation Immobilization and Extraction Of Cadmium In Soilssupporting

confidence: 63%

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et al. 2017

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The soil is an important resource, which sustains life on the planet. However, its contamination with Cadmium (Cd) may represent a huge threat to all the chain of living beings. Efforts have been done to minimize soil pollution with trace metals, as well as to amend those soils that are already polluted. This study was conducted aiming to determine the efficiency of three binding agents on the immobilization of Cd in three soil types collected from Karanganyar. Soil samples were collected from the topsoil (30 cm) and analyzed in the laboratory for pH, SOM, CTC, soil texture and initial Cd content before treatment. The experimental design was Completely Randomized (3 soil types; 3 adsorbents; 3 replications), and incubated for 24 days in the laboratory. After incubation, pH and Cd content were measured and ANOVA and Tukey's test were performed. The results showed that Dolomite was the best binding agent on immobilization of Cd (95.45%) in each soil, followed by organic fertilizer (92.64%) and charcoal (91.53%). However, in general, all the binding agents showed remarkable efficiency on Cd immobilization in the three soil types. To sum up, this research may positively boost agricultural systems, which is determinant for sustainable development, in particular in developing countries worldwide. In addition, the outcomes may have a great impact on the reduction of soil pollution with agrochemicals and heavy metals. On the other hand, there is a potential to keep and restore ecological sustainability. Apart from this, also could minimize to some extent, climate change and global warming issues through multi-planting strategies, while significantly contributing to achieving food security and economic stability, as well as addressing poverty issues in rural areas.

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Section: Incubation Immobilization and Extraction Of Cadmium In Soilssupporting

confidence: 63%

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et al. 2017

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“…Compared with conventional sand filters that primarily remove particulates and particulate‐bound contaminants, IESFs are designed to use sorption to enhance dissolved phosphorus removal (Erickson et al ). Phosphorus may outcompete metals, although both phosphate and metals would outcompete trace organics for IESF sorption sites, based on typical relative stormwater concentrations, charge/polarity, and pertinent electrochemical interactions (Reddy et al ). Thus, the apparent toxicological similarity of IESF‐treated versus IESF‐untreated stormwater samples could be attributable to the persistence of dissolved, bioavailable contaminant fractions through IESFs, although total (dissolved and particulate) contaminant removal was strong.…”

Section: Discussionmentioning

confidence: 99%

Effects of urban stormwater and iron‐enhanced sand filtration on Daphnia magna and Pimephales promelas

Westerhoff

Fairbairn

Ferrey

et al. 2018

Enviro Toxic and Chemistry

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Urban stormwater is an important but incompletely characterized contributor to surface-water toxicity. The present study used 5 bioassays of 2 model organisms (Daphnia magna and fathead minnow, Pimephales promelas) to investigate stormwater toxicity and mitigation by full-scale iron-enhanced sand filters (IESFs). Stormwater samples were collected from major stormwater conveyances and full-scale IESFs during 4 seasonal events (winter snowmelt and spring, early summer, and late summer rainfalls) and analyzed for a diverse range of contaminants of emerging concern including pharmaceuticals, personal care products, industrial chemicals, and pesticides. Concurrently, stormwater samples were collected for toxicity testing. Seasonality appeared more influential and consistent than site type for most bioassays. Typically, biological consequences were least in early summer and greatest in late summer and winter. In contrast with the unimproved and occasionally reduced biological outcomes in IESF-treated and late summer samples, water chemistry indicated that numbers and total concentrations of detected organic chemicals, metals, and nutrients were reduced in late summer and in IESF-treated stormwater samples. Some potent toxicants showed more specific seasonality (e.g., high concentrations of polycyclic aromatic hydrocarbons and industrial compounds in winter, pesticides in early summer and spring, flame retardants in late summer), which may have influenced outcomes. Potential explanations for insignificant or unexpected stormwater treatment outcomes include confounding effects of complex stormwater matrices, IESF nutrient removal, and, less likely, unmonitored toxicants. Environ Toxicol Chem 2018;37:2645-2659. © 2018 SETAC.

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“…Nutrient leaching may be reduced by using less nutrient-dense compost (higher C:N ratio), using lower amounts of compost (Wardynski and Hunt 2012), adding sorbents for phosphorus (P) (Chang, Hossain, and Wanielista 2010;Grebel et al 2013;Hunt, Davis, and Traver 2012;LeFevre et al 2015;Reddy, Xie and Dastgheibi 2014), or layering compost over the engineered media rather than mixing with the plant growth media (Hsieh and Davis 2005). Enough nutrients must still be present to maintain plant growth.…”

Section: Introductionmentioning

confidence: 99%

Nutrient Leaching When Compost Is Part of Plant Growth Media

Logsdon

Sauer

2016

Compost Science & Utilization

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Engineered plant growth media must support plant growth while minimizing environmental impact. The objective of this research was to determine how different growth media influence nutrient leaching. Plant growth media contained varied amounts of soil, sand, compost that did or did not contain manure, and possible sorbents for phosphorus. If the plant growth media included compost derived partly from manure, leaching losses of nutrients were excessive due to the high nutrient load in the compost. Layering compost over the plant media mix resulted in lower nitrate concentrations in effluent (87 mg L ¡1 ) compared with mixing compost into the media (343 mg L ¡1 ); however, growth of prairie grasses was reduced because of dense media below the compost blanket (0.09 versus 0.31 g). Using lower amounts of compost that did not contain manure resulted in lower mean nitrate concentrations in effluent (101 versus 468 mg L ¡1 ). Media that had no soil (13.3 mg L ¡1 ) had greater loss of phosphorus after harvest for unsaturated drainage than media with soil (1.8 mg L ¡1 ). To reduce nitrate leaching, only small amounts of low-nutrient compost (higher C:N ratio) should be incorporated into the media. If compost is applied as a surface blanket without incorporation, then soil should be added to the sand to reduce density of the media and increase plant growth.

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Adsorption of mixtures of nutrients and heavy metals in simulated urban stormwater by different filter materials

Cited by 41 publications

References 54 publications

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Effects of urban stormwater and iron‐enhanced sand filtration on Daphnia magna and Pimephales promelas

Nutrient Leaching When Compost Is Part of Plant Growth Media

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