Analysis of potentially toxic metal constraints to apply sewage sludge in Portuguese agricultural soils

Gomes, Luciano A.; Gabriel, Nuno; Gando-Ferreira, Licínio M.; Góis, José C.; Quina, Margarida J.

doi:10.1007/s11356-019-05796-6

Cited by 16 publications

(4 citation statements)

References 59 publications

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“…The content of trace elements in SS is one of the limiting factors for using SS as a soil amendment. The limits for Cd, Cr, Cu, Ni, Pb, and Zn have been established by European legislation (EU Directive 86/278/EEC) and represent the maximum permitted concentrations in SS for agricultural use [58]. Table 4 shows that the concentrations of trace metals in the SS samples are below EU threshold limits.…”

Section: Characteristics Of the Soil And Sludgementioning

confidence: 99%

Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

et al. 2021

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Sewage sludge is an effective fertilizer in many soil types. When applied as an amendment, sludge introduces, in addition to organic matter, plant nutrients into the soil. When applied for cropland as a fertilizer, the mass loading of sewage sludge is customarily determined by inputs of N and/or P required to support optimal plant growth and a successful harvest. This study aims to examine the changes in organic matter contents and nitrogen forms in sludge-amended soils, as well as the growth of corn and faba bean plants. The main results indicated that there were higher responses to the corn and faba bean yields when sludge was added. Levels of organic carbon in soil were higher after maize harvest and decreased significantly after harvesting of beans, and were higher in sludge amended soils than unmodified soils, indicating the residual effect of sludge in soil. NO3−-N concentrations were generally higher in the soil after maize harvest than during the plant growth period, but this trend was not apparent in bean soil. The amounts of NH4+-N were close in the soil during the growth period or after the maize harvest, while they were higher in the soil after the bean harvest than they were during the growth period. Total nitrogen amounts were statistically higher in the soil during the growth period than those collected after the corn harvest, while they were approximately close in the bean soil. The total nitrogen amount in corn and bean leaves increased significantly in plants grown on modified sludge soil. There were no significant differences in the total nitrogen levels of the maize and beans planted on the treated soil.

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Section: Characteristics Of the Soil And Sludgementioning

confidence: 99%

Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

et al. 2021

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“…Recycling is, depending on the alternatives, always an interesting way to manage waste [81] from a sustainable perspective [82], as is reuse [83]. However, in these streams there are still some aspects that need more assessments [84] to make waste management and human health preservation compatible [85]. This is true across many dimensions of circular economy [86].…”

Section: Resources and Wastementioning

confidence: 99%

Circular Economy and Economic Development in the European Union: A Review and Bibliometric Analysis

Martinho

Mourão

2020

Sustainability

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Increased changes in the climate and ecosystems call for a sustainable economic development, where economic growth should be compatible with the environment goals. In order to do this, it is urgent to find new ways of life and new production systems that make our ecological footprint compatible with global sustainability. The concept of the circular economy has brought relevant contributions to this problem. The central objective of the study presented here is to highlight the main insights presented through scientific literature about the concept of the circular economy within the European Union. In practice, the intention is to show what has already been done about this topic and what can/should be implemented in the future. To achieve these objectives, 144 articles were considered from the Web of Science (Core Collection) for the topics “circular economy” and “European Union”. These documents were, firstly, analysed through a proper literature review and later explored through bibliometric analysis, considering bibliographic data and the VOSviewer software. As the main findings have revealed, the increased importance of this concept within the European Union is recognized. However, this paper also identifies several challenges in the literature, namely the concentration of the identified publications in certain countries, organizations, and authors.

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“…The most common disposal processes are burning, agricultural valorization of waste, and engineered landfilling, although disposal methods vary greatly from location to location, influenced by a variety of intrinsic characteristics [4] . The agricultural utilization of sludge is mostly prevalent in Holland, China, Belgium, and Sudan while 50% of sludge is produced for agricultural utilization in Germany, Lebanon, Egypt, France, and Portugal [5] , [6] . Worldwide, sludge production rates vary significantly, with developing countries producing 100–1000 liters per capita annually, contrasting with 10,000–13,000 liters in developed nations [7] .…”

Section: Introductionmentioning

confidence: 99%

Human and ecotoxicological risk assessment of heavy metals in polymer post treatment sludge from Barekese Drinking Water Treatment Plant, Kumasi

Ashong,

Ababio,

Kwaansa-Ansah

et al. 2024

Toxicology Reports

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Analysis of potentially toxic metal constraints to apply sewage sludge in Portuguese agricultural soils

Cited by 16 publications

References 59 publications

Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

Effect of Sewage Sludge Compost Usage on Corn and Faba Bean Growth, Carbon and Nitrogen Forms in Plants and Soil

Circular Economy and Economic Development in the European Union: A Review and Bibliometric Analysis

Human and ecotoxicological risk assessment of heavy metals in polymer post treatment sludge from Barekese Drinking Water Treatment Plant, Kumasi

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