Fertiliser characterisation: Major, trace and rare earth elements

Otero, Neus; Vitòria, Laura; Soler, Albert; Canals, Àngels

doi:10.1016/j.apgeochem.2005.04.002

Cited by 214 publications

(84 citation statements)

References 16 publications

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“…Soils originated from igneous rocks, schists, and sandstone tend to contain more REE when compared to those originated from other materials [41]. Increased REE contents in areas affected by anthropogenic alterations are usually a result of the application of agricultural fertilizers [49,52,53,56,69,70]. However, environmental factors such as rain, snow, and wind transport can contribute to these contents, mainly in areas close to large industrial sites [47].…”

Section: Soil Reference Concentrationsmentioning

confidence: 99%

Rare Earth Elements in the Soil Environment

et al. 2016

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Rare earth elements (REE) are a homogenous group of 17 chemical elements in the periodic table that are key to many modern industries including chemicals, consumer electronics, clean energy, transportation, health care, aviation, and defense. Moreover, in recent years, they have been used in agriculture. One of the consequences of their worldwide use is the possible increase of their levels in various environmental compartments. This review addresses major topics concerning the study of REE in the soil environment, with special attention to the latest research findings. The main sources of REE to soils, the contents of REE in soils worldwide, and relevant information on the effects of REE to plants were explored. Ecological and human health risk issues related to the presence of REE in soils were also discussed. Although several findings reported positive effects of REE on plant growth, many questions about their biological role remain unanswered. Therefore, studies concerning the actual mechanism of action of these elements on cellular and physiological processes should be further refined. Even more urgent is to unveil their chemical behavior in soils and the ecological and human health risks that might be associated with the widespread use of REE in our modern society.

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Section: Soil Reference Concentrationsmentioning

confidence: 99%

Rare Earth Elements in the Soil Environment

et al. 2016

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“…However, they were mostly higher than those measured in the upper reaches of the clutha River and the pristine Manuherikia River, and Lake Mahinerangi, a deep water reservoir in a catchment with less intensive agricultural use and settlements (Tables 3, 4). The latter finding could reflect greater anthropogenic influences in the Lake Hayes catchment, as B, cd, Mo, and Zn are among elements that are enriched in phosphate fertilisers (Martin 2005;Otero et al 2005). cu and Zn concentrations that we measured in Lake Hayes were higher than in 1997 (Reid et al 1999), which could indicate changes in in-lake concentration but may also result because of differences in sampling depth and methodology.…”

Section: Trace Element Concentrationsmentioning

confidence: 39%

Investigation of nutrient limitation status and nutrient pathways in Lake Hayes, Otago, New Zealand: A case study for integrated lake assessment

Bayer

Schallenberg

Martin

2008

New Zealand Journal of Marine and Freshwater Research

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We present a case study illustrating an integrated approach to lake water quality assessment, for Lake Hayes, Otago, New Zealand. This approach improved understanding of the biological importance of several macro-and micronutrients and their major pathways (including groundwater), and, coupled with trophic state monitoring, could be the basis for more effective management of lakes exhibiting algal blooms. A nutrient enrichment bioassay experiment found that additions of zinc and nitrogen stimulated productivity, indicating that phytoplankton growth in the lake may have been limited by these nutrients. Nutrient data confirmed the potential for nitrogen limitation at times. The main source of nutrients to the lake was the surface inflow, but almost 30% of the nitrate input entered the lake via a groundwater-fed spring, highlighting the importance of nutrients in groundwater as a potential driver of algal proliferation. A recent shift in phytoplankton community structure from dominance of cyanobacteria and desmids to dominance of mobile, mixotrophic dinoflagellates indicates that the dominant phytoplankter may no longer be restricted to using only epilimnetic and inorganic forms of nutrients. This integrated assessment of Lake Hayes also suggested strong internal phosphorus cycling, which could explain why phytoplankton blooms continue despite improved catchment nutrient management.

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“…The value of enthalpy ∆H o and entropy ∆S o were calculated from the slope and intercept of the plot lnK D against 1/T as given in equation (7). The value of free energy ∆G o , enthalpy∆H o and entropy ∆S o are listed in Table 2.…”

Section: Biosorption Thermodynamicsmentioning

confidence: 99%

“…To protect the public health and environment the removal of these metals from wastewater is important 2 . Copper, zinc and lead have been introduced in the environment from a variety of sources like storage battery 3 , paints and pigments 4 , electronics 5 fertilisers 6,7 and electroplating 8,9 . High concentration of copper leads to severe gastrointestinal irritation and possible necrotic changes in the liver and kidney in human 10 .…”

Section: Introductionmentioning

confidence: 99%

Equilibrium and Thermodynamic Studies of Pb(II), Cu(II) and Zn(II) Adsorption onto Dicliptera bupleuroides Leaves

2017

Chem Sci Trans

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Biosorption of Cu(II), Zn(II) and Pb(II) ions onto Dicliptera bupleuroides leaves (DBL) in a batch system with respect to adsorbent dose, contact time, temperature, pH and initial metal ion concentration was investigated. Langmuir, Freundlich and Temkin isotherm model were applied to describe the equilibrium data. Langmuir isotherm model provided a better fit to the experimental data than the Freundlich and Temkin isotherm. The adsorption capacity is 2.55 mg/g, 1.06 mg/g, and 1.76 mg/g for Cu(II), Zn(II) and Pb(II) respectively. The optimum adsorption conditions obtained were at contact time 75 min, pH 5, initial metal ion concentration 10 mg/L, temperature 45 o C for Cu(II) and 30 o C for Zn(II) and Pb(II) and adsorbent dose 2.5 g. Thermodynamic parameters indicated that the adsorption reactions were spontaneous (∆G 0 <0), feasible and exothermic (∆H 0 <0) .

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Fertiliser characterisation: Major, trace and rare earth elements

Cited by 214 publications

References 16 publications

Rare Earth Elements in the Soil Environment

Rare Earth Elements in the Soil Environment

Investigation of nutrient limitation status and nutrient pathways in Lake Hayes, Otago, New Zealand: A case study for integrated lake assessment

Equilibrium and Thermodynamic Studies of Pb(II), Cu(II) and Zn(II) Adsorption onto Dicliptera bupleuroides Leaves

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