Influence of Dissolved Organic Matter on the Solubility of Heavy Metals in Sewage‐Sludge‐Amended Soils

Ashworth, Daniel J.; Alloway, B. J.

doi:10.1080/00103620701826787

Cited by 100 publications

(50 citation statements)

References 18 publications

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“…Cadmium showed the lowest solubility in soil by the high pH and high solubility of dissolve organic carbon. These results indicated that pH showed a strong relationship (negative) with Cd concentrations in soil (Ashworth and Alloway, 2008). But the inconsistent results were found in respect of Pd concentration in soil.…”

Section: Discussionmentioning

confidence: 52%

Effects of organic and inorganic fertilizers on lettuce (Lactuca sativa L.) and soil properties

Hossain

Ryu

2018

SAARC J Agric

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A Greenhouse experiment was conducted to identify the suitable dose of organic fertilizer for lettuce production. Different doses of organic fertilizer (6.5, 13 and 26 t ha -1) and the recommended dose of chemical fertilizer (RDCF) as standard were selected for this experiment. Application of 13 t ha -1 organic fertilizer significantly increased leaf size (length and breadth) of lettuce. This treatment also increased 14, 25, 21, 32, 24, 27, 36 and 168% fresh weight, dry weight, N, P, K, Ca, Mg & Na uptake over RDCF, respectively. Organic matter content was increased of 17.79, 43.82 and 89.89% in 6.5, 13 and 26 t ha -1 organic fertilizer treated plots respectively over recommended dose of chemical fertilizers. Data also indicated that organic fertilizer @ 26 t ha -1 resulted in significant increase in pH, total nitrogen (24%), organic matter (90%) and Zn (29%) compared to RDCF and decreased electrical conductivity, mineral nitrogen (NH 4 + -N & NO 3 --N) and cadmium and lead (Cd & Pb) in soil. Positive and significant correlation was observed on yield and yield attributes of lettuce and soil nitrogen, organic matter with pH, total nitrogen with mineral nitrogen and negative correlation was found with applied organic fertilizer with cadmium and lead. Based on these results, organic fertilizer @ 13 t ha -1 without chemical fertilizer could be recommended to increase lettuce yield as well as mitigate heavy metals in soil.

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Section: Discussionmentioning

confidence: 52%

Effects of organic and inorganic fertilizers on lettuce (Lactuca sativa L.) and soil properties

Hossain

Ryu

2018

SAARC J Agric

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“…The lower MPAC values in the soil subjected to the application of PM1 may be attributed to the history of P application, which favored the occupation of P adsorption sites, especially those located in inorganic reactive soil particles (Berwanger et al, 2008). However, it should be emphasized that the lowest value of MPAC found in the 20-30 cm layer in the PM1 treatment may also be related to a greater adsorption of organic ligands at the P adsorption sites derived from the decomposition of the applied organic residues (Jara et al, 2006;Ashworth & Alloway, 2008;Zhang & Zhang., 2010).…”

Section: Resultsmentioning

confidence: 83%

Phosphorus accumulation and pollution potential in a hapludult fertilized with pig manure

Guardini¹,

Comin

Santos

et al. 2012

Rev. Bras. Ciênc. Solo

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SUMMARYSuccessive applications of pig litter to the soil surface can increase the phosphorus (P) content and alter its adsorption, promoting P transfer to surface or subsurface waters. The purpose of this study was to evaluate P accumulation and the pollution potential of a soil after application of pig litter. In March 2010, eight years after the installation of an experiment in Braço do Norte, Santa Catarina, SC, Brazil, on a Typic Hapludult, soil was sampled (layers 0-2.5, 2.5-5, 5-10, 10-15, 15- 0-2,5; 2,5-5; 5-10; 10-15; 15-20; e 20-30 RESUMO: ACÚMULO E POTENCIAL CONTAMINANTE DO FÓSFORO EM UM ARGISSOLO COM APLICAÇÃO DE DEJETOS DE SUÍNOS As aplicações sucessivas de dejetos de suínos na superfície do solo podem aumentar o teor de fósforo (P) e alterar a sua adsorção, potencializando a transferência para as águas superficiais ou subsuperficiais. O presente trabalho objetivou avaliar o acúmulo e o potencial contaminante do P em um solo com aplicação de dejetos de suínos. Em março de 2010, após oito anos da instalação de um experimento localizado no município de Braço do Norte, Santa Catarina (SC), sobre um Argissolo Vermelho, foram coletadas amostras de solo nas camadas de

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“…In the publication, there is a lot of information stating that the solubility of metal sorbent depends primarily on the soil, pH, the concentration of the inorganic ligands and soluble humic acids in soil solution. The solubility of the metals depends mainly on the metal loading over soil sorbents, pH, and the concentration of inorganic ligands and dissolved organic matter (DOM) in the soil solution (Krosshavn et al 1993;Dube et al 2001;Weng et al 2002;Ashworth and Alloway 2008). The contamination coefficient (CF) allowed for the classification of the examined soils to the appropriate group, depending on the geochemical background factor.…”

Section: Content Of the Selected Heavy Metals In Soilmentioning

confidence: 99%

Assessment of the content of heavy metals and potential pathogenic microorganisms in soil under illegal dumping sites

2016

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The aim of the study was the assessment of the environmental contamination of soil by heavy metals and microorganisms within the uncontrolled landfill dumps and the impact of anthropogenic sources on the activity of selected soil surface horizons. Some physicochemical properties were determined according to commonly used procedures in soil science laboratories. The total of heavy metals concentration was assessed according to Crock and Severson and forms available according to Lindsay and Norvell. The total contents and mobile forms were determined by atomic absorption spectrophotometry. As part of the microbiological tests, potentially pathogenic evidence of bacteria was found indicating fecal contamination of the soil (E. coli and other coliform bacilli, Salmonella spp., and Enterococcus spp.). Quantitative analyses were carried out based on the calculation of the most probable number of microorganisms (MPN method). The activity of selected redox and hydrolases enzymes: the activity of dehydrogenases with the Thalmann method, catalase with the Johnson and Temple method, alkaline and acid phosphatase with the method of Tabatabai and Bremner. It was concluded that depending on the composition of the dump, the physicochemical properties of the soil were changed, too. Uncontrolled landfills significantly affected the increase or decrease in the pH of the tested soil and the organic content of the tested soil. The waste stored at the site affected the contamination of the soil by heavy metals to varying degrees. The results show that the most dangerous bacteria exist in the soil under the C landfill and this is where the greatest risk of soil contamination exists. The highest amount of selected enzymes activity was observed in soils under illegal C dumping sites. In the soil sourced from A and B landfills, the enzyme inhibition occurred which was linked to the lowering of the organic carbon. The results of the principal component analysis demonstrated that the content of heavy metals and the activity of enzymes are the indicators of anthropogenic pollution, whereas granulometric composition (sand and silt) is mainly associated with the natural environment.

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Influence of Dissolved Organic Matter on the Solubility of Heavy Metals in Sewage‐Sludge‐Amended Soils

Cited by 100 publications

References 18 publications

Effects of organic and inorganic fertilizers on lettuce (Lactuca sativa L.) and soil properties

Effects of organic and inorganic fertilizers on lettuce (Lactuca sativa L.) and soil properties

Phosphorus accumulation and pollution potential in a hapludult fertilized with pig manure

Assessment of the content of heavy metals and potential pathogenic microorganisms in soil under illegal dumping sites

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