Cumulative effect of sewage sludge application on soil adsorption complex and nutrient balance: a field study in semi-arid region (Oued Souhil, Tunisia)

Hechmi, Sarra; Zoghlami, Rahma Inès; Khelil, Mohamed Naceur; Mokni‐Tlili, Sonia; Kallel, Amjad; Trabelsi, Ismaîl; Jedidi, Naceur

doi:10.1007/s12517-021-09369-1

Arab J Geosci

2021

DOI: 10.1007/s12517-021-09369-1

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Cumulative effect of sewage sludge application on soil adsorption complex and nutrient balance: a field study in semi-arid region (Oued Souhil, Tunisia)

Sarra Hechmi

Rahma Inès Zoghlami

Mohamed Naceur Khelil

et al.

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Cited by 7 publications

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Assessing metal contamination and speciation in sewage sludge: implications for soil application and environmental risk

Feng,

Burke,

Chen

et al. 2023

Rev Environ Sci Biotechnol

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Based on the most recently published data, we definitively estimated that the annual global production of sewage sludge may rise from ~ 53 million tons dry solids currently to ~ 160 million tons if global wastewater were to be treated to a similar level as in the 27 European Union countries/UK. It is widely accepted that the agricultural application is a beneficial way to recycle the abundant organic matter and plant nutrients in sewage sludge. However, land application may need to be limited due to the presence of metals. This work presents a meticulous and systematic review of the sources, concentrations, partitioning, and speciation of metals in sewage sludge in order to determine the impacts of sludge application on metal behavior in soils. It identifies that industrial wastewater, domestic wastewater and urban runoff are main sources of metals in sludge. It shows conventional treatment processes generally result in the partitioning of over 70% of metals from wastewater into primary and secondary sludge. Typically, the order of metal concentrations in sewage sludge is Zn > Cu > Cr ≈ Pb ≈ Ni > Cd. The proportion of these metals that are easily mobilised is highest for Zn and Ni, followed by Cd and Cu, then Pb and Cr. Sludge application to land will lead to elevated metal concentrations, and potentially to short-term changes to the dominant metal species in soils. However, the speciation of sludge-associated metals will change over time due to interactions with plant roots and soil minerals and as organic matter is mineralised by rhizo-microbiome.

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Assessing metal contamination and speciation in sewage sludge: implications for soil application and environmental risk

Feng,

Burke,

Chen

et al. 2023

Rev Environ Sci Biotechnol

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show abstract

The potential use of lignite-based wastes (LBW) derived from humic acid extraction as an organic amendment to improve soil properties and barley growth

et al. 2023

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Short-term effects of Sulla residues and farmyard manure amendments on soil properties: cation exchange capacity (CEC), base cations (BC), and percentage base saturation (PBS)

Bouajila,

Hechmi,

Mechri

et al. 2023

Arab J Geosci

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Cumulative effect of sewage sludge application on soil adsorption complex and nutrient balance: a field study in semi-arid region (Oued Souhil, Tunisia)

Cited by 7 publications

References 46 publications

Assessing metal contamination and speciation in sewage sludge: implications for soil application and environmental risk

Assessing metal contamination and speciation in sewage sludge: implications for soil application and environmental risk

The potential use of lignite-based wastes (LBW) derived from humic acid extraction as an organic amendment to improve soil properties and barley growth

Short-term effects of Sulla residues and farmyard manure amendments on soil properties: cation exchange capacity (CEC), base cations (BC), and percentage base saturation (PBS)

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