Assessment of a particle size fractionation as a technology for reducing heavy metal, salinity and impurities from compost produced by municipal solid waste

Sharifi, Zahed; Renella, Giancarlo

doi:10.1016/j.wasman.2015.01.018

Cited by 47 publications

(20 citation statements)

References 28 publications

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“…Conversely, the metal content of Cu, Ni, As, and Cr was much larger in the nano-biosolid (F5) and the smallest macro-biosolid (F4) fractions as compared to all other macro-biosolid (F0, F1, F2, and F3) fractions (Table 3). Our results are consistent with Sharifi and Renella [11] who found no significant differences in the values of pH and macro nutrients among seven size fractions (from 2 to 0.1 mm) of municipal solid waste, and only slight increase in EC and metal content with decreasing of particle size.…”

Section: Macro-and Nano-biosolid Propertiessupporting

confidence: 93%

“…After 48 h of interaction with 2 mg L −1 contaminants solution, nano-biosolid showed greater stability as compared to its corresponding macro-biosolid fractions [8]. Therefore, size fractionation can help to increase the efficiency of biosolid as a soil amendment and minimize any detrimental impacts on soil and groundwater resources [11].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Macro- and Nano-Biosolid Fractions on Sorption Affinity and Transport of Pb in a Loamy Sand Soil

Alghamdi

Ibrahim

2019

Sustainability

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Applications of large amounts of biosolid to agricultural lands have raised the concern over its potential impact on co-transport of metal contaminants. In this study, bulk biosolid was fractioned into six macro- and nano-biosolid fraction sizes. We investigated variations in the physicochemical properties of the different biosolid fraction sizes, and assessed sorption affinity and transport of Pb in a loamy sand soil. Decreasing biosolid fraction size from macro to nano resulted in consistent increases in surface area, surface charge, and a decrease in pore size. Biosolid particles >1000 µm showed similar surface properties that differ from biosolid particles < 1000 µm. Sorption affinity for Pb was larger on nano-biosolid as compared to all macro-biosolid fraction sizes. This is mainly attributed to the larger surface area and zeta potential of nano-biosolid, leading to increased surface reactivity and greater stability. Total amount eluted of Pb was increased in the presence of macro- and nano-biosolid by 21.3% and 45.6%, respectively. Our findings suggest that the application of the >1000 µm biosolid fractions can help to minimize adverse effects of biosolid applied in areas susceptible to potential environmental risk of contamination by heavy metals. Further assessment of potential mobility of nano-biosolid at the field scale is needed before the recommendation of including such approach during land application of biosolid.

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Section: Macro-and Nano-biosolid Propertiessupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of Macro- and Nano-Biosolid Fractions on Sorption Affinity and Transport of Pb in a Loamy Sand Soil

Alghamdi

Ibrahim

2019

Sustainability

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“…The major nutrients release from municipal compost through leaching in terms of nitrogen and potassium is comparable to this of commercial fertilizers [18]. Sharif and Renella [19] have also stressed the risks related to salinity and heavy metal release after municipal compost use in environmental and agricultural applications. Courtney and Mullen [20] showed an approximate increase in 38% in exchangeable potassium in silty sand soil amended with compost.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Effect of zeolite application on potassium release in sandy soils amended with municipal compost

Moraetis

Papagiannidou

Pratikakis

et al. 2016

Desalination and Water Treatment

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A B S T R A C TThe use of compost in enhancing organic carbon content and aggregation in soil has been widely studied in the last decades. Recently, compost is used in new environmental applications for the remediation of both contaminated groundwater and soil. However, compost addition increases by 10 orders of magnitude the soil electrical conductivity and the nutrient content such as potassium. Subsequently, nutrient leaching in groundwater may increase water salinity. The present study investigates the effect of zeolite application on potassium release in sandy soils amended with municipal compost. Kinetic experiments show that zeolite addition in soil-compost mixtures have no effect on potassium desorption rate while it results in an 18-fold increase in bio-available potassium. Column tests show that zeolite application results up to six times decrease in total potassium leaching. Experimental results show high potassium affinity for the mixture soil-compost-zeolite in pH > 7, which is of paramount importance, considering that soils in southern Europe (Italy, Spain, south France, Albania and Greece) exhibit slightly alkaline pH in most cases. The findings of this study may be also used to predict the potential of groundwater contamination in agricultural areas as well as during the implementation of preventive measures.

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“…Human activity has often had detrimental effects on soil as it relates to human health. Heavy metals have been introduced to soil through agricultural management, such as the addition of composts (Sharifi & Renella, 2015), fertilizers (Chen et al, 2014) and pesticides (Morgan, 2013), industrial activities (Gottesfeld et al, 2018;Khaledian, Pereira, Brevik, Pundyte & Paliulis, 2017), mining (Mbila & Thompson, 2004), poorly regulated or illegal recycling of electronic wastes or e-wastes (Wu et al, 2015) and the construction of structures using treated timber or lumber (Gardner, Weindorf & Flynn, 2013). The petroleum industry can negatively affect soil near oil or water production and spill sites or near waste disposal locations with a wide range of organic chemicals, heavy metals (Laffon, Pásaro & Valdiglesias, 2016), salts (Lauer, Harkness & Vengosh, 2016) and naturally occurring radioactive materials (NORM) (Zielinski & Otton, 1999).…”

Section: Highlightsmentioning

confidence: 99%

Connecting the public with soil to improve human health

Brevik

Steffan

Rodrigo‐Comino

et al. 2019

European J Soil Science

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Despite the definite links between soil and human health, it is likely that most people do not think about soil when considering human health. There is a disconnect between most people in our modern society and soil, and when people notice soil it is often in a negative context. People care for things that matter to them, and creating a more positive public image of soil could improve human health by leading to better treatment and understanding of the soil resource. There are a number of concepts that may be able to connect people to the soil, including terroir, soil health and soil security. While terroir originally established a connection between those who appreciate wine and the soils that produce those wines, the concept has been expanded to many additional products. It might be possible to provide a terroir link to human health benefits if they can be shown to be characteristic of a given soil environment. The concept of soil health has caught on with many farmers, policymakers, scientists and the general public, thus providing another possible approach to improve peoples’ connection with soil. Soil security is a recent concept that has been advanced as a way to take advantage of the connection that concepts such as energy, food and water security have made with policymakers. Therefore, we advocate a concerted effort to investigate terroir, soil health and soil security as concepts to improve overall human health. Soil health and soil security might have the most promise, and some social marketing campaigns that include soil health are ongoing. Highlights Soil is important to human health. A disconnect exists between the urban population and soil. Education about soil can rebuild these connections. Concepts such as terroir, soil health or soil security might help make connections.

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Assessment of a particle size fractionation as a technology for reducing heavy metal, salinity and impurities from compost produced by municipal solid waste

Cited by 47 publications

References 28 publications

Effect of Macro- and Nano-Biosolid Fractions on Sorption Affinity and Transport of Pb in a Loamy Sand Soil

Effect of Macro- and Nano-Biosolid Fractions on Sorption Affinity and Transport of Pb in a Loamy Sand Soil

Effect of zeolite application on potassium release in sandy soils amended with municipal compost

Connecting the public with soil to improve human health

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