Lipid Increase Induced by Lead Accumulation in Tilapia Oreochromis niloticus

Paulino, Alexandre Tadeu; Tessari, J. A.; Nogami, Eurica M.; Lenzi, Ervim; Nozaki, Jorge

doi:10.1007/s00128-005-0716-x

Cited by 19 publications

(17 citation statements)

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“…Inorganic lead causes disturbance in the central nervous system by changing the characteristics of the early organism [3,4]. According to WHO, the maximum permissible limit (MPL) of lead in drinking water is 0.1 mg/L [5].…”

Section: Introductionmentioning

confidence: 99%

Removal of lead(II) ions from aqueous solutions using activated carbon from Militia ferruginea plant leaves

Mengistie

Rao

Singanan

2008

Bull. Chem. Soc. Eth.

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ABSTRACT. The adsorption of lead(II) on to activated carbon developed from an indigenous Ethiopian medicinal plant leaves namely Birbira (Militia ferruginea) was investigated to assess the possible use of this adsorbent. The influences of contact time, adsorbent dose, Pb(II) concentration, pH and temperature on adsorption were investigated. The maximum adsorption took place at 3 h. at a dose of 4.0 g of adsorbent, and 97.3 % of Pb . The percentage of adsorption had increased with the increasing temperature. The positive value of ∆H indicated that the adsorption of lead ions on the adsorbent was an endothermic process. The values of free energy (∆G) were negative as expected for a spontaneous process. The decrease in ∆G value with increasing temperature revealed that adsorption of the ion on the adsorbent became favorable at a higher temperature. The calculated value of ∆H was 25.05 kJ mol -1 , ∆S was 135.48 JK -1 mol -1 and ∆G was also calculated for each temperature. The two theoretical adsorption isotherms, namely, Langmuir and Freundlich were used to describe the experimental results. The Freundlich adsorption isotherm best fits and adsorption capacity was calculated to be 3.3 mg of Pb(II) per g of adsorbent. The adsorption followed the first order kinetics and was found to be pH dependent being maximum at pH 4.0. The pH effect and desorption studies showed that ion exchange mechanism might be involved in the adsorption process. Reuse of the desorbed bio-adsorbent is possible. The effect of foreign ions on the removal of Pb(II) has been investigated. The removal of Pb(II) from industrial wastewater sample was also tested and showed that more than 97 % removal was possible. The results showed that activated carbon prepared from Birbira (Militia ferruginea) leaves could be used for the removal of Pb(II) from wastewater.

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Section: Introductionmentioning

confidence: 99%

Removal of lead(II) ions from aqueous solutions using activated carbon from Militia ferruginea plant leaves

Mengistie

Rao

Singanan

2008

Bull. Chem. Soc. Eth.

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“…Lead can enter the environment naturally through volcanic emissions and weathering (Mather, 2015). This metal is a neurotoxin that accumulates in muscular tissue, bone and viscera, damaging the central nervous system and causing brain disorders in animals (Paulino et al, 2005). Lead concentrations higher than that ISSN 2164-7682 2017 considered acceptable by international regulations were found in all water samples studied.…”

Section: Metal Concentrationsmentioning

confidence: 93%

Environmental Characteristics and Water Quality of a Drainage Basin Impacted by Human Activities

Oliveira

Becegato

Barcarolli

et al. 2017

EMSD

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The aim of the present study was to determine the environmental characteristics and water quality of a drainage basin impacted by human activities in order to obtain quantitative information for helping the development of environmental management politics of soils, lakes, rivers and water resources. Physicochemical properties and concentrations of metals were determined in different water samples. Dissolved oxygen, pH, turbidity, color, ammonia, phosphorus, phenol, copper, silver, lead, cadmium and iron differed from levels considered acceptable by international regulations, indicating potential environmental pollution due to land occupation and the improper disposal of domestic, industrial and agricultural waste. The leaching of pollutants from the soil to bodies of water was also found. Total dissolved solids, salinity, suspended solids, nitrate, nitrite and zinc levels were lower than the limits imposed by international regulations, but have been increasing over time. Urbanization, industrialization and agricultural processes in drainage basins significantly affect the natural characteristics of the environment, leading to an increase in the concentrations of pollutants and a reduction in the quality of water, plants and soils. As pollutants in drainage basins generally enter into soils, rivers, lakes and ocean, it is necessary to obtain quantitative information about the human impacts in the water quality for developing environmental management politics aiming to preserve the water resources.

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“…In this methodology, the organic matter was completely oxidized. 1 . Thus, the tilapia samples prepared were used without previous treatment.…”

Section: Preparation Of Tilapia Samplementioning

confidence: 99%

“…1 Heavy metals are available all over the word in either natural or synthetic form. 2 Ni 2+ (nickel) is a toxic element; it is the 24th most abundant element on the earth crust, and it makes up 6% of center crust.…”

Section: Introductionmentioning

confidence: 99%

“…10 Nowadays, considerable efforts are made to develop methods to determine trace heavy metals in biological and soil samples. 1 Modified solid microelectrodes with mercury thin film and mercury drop electrodes allow the direct determination of some metals with high sensitivity. However, metals like Al 3+ need a complexing agent because their high oxidation potential and secondary currents affect the observation of the reduction peak.…”

Section: Introductionmentioning

confidence: 99%

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Square Wave Voltammetry in the Determination of Ni2+ and Al3+ in Biological Samples

et al. 2008

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In this contribution, the amounts of Ni (nickel) and Al (aluminum) in tilapias (Oreochromis niloticus) were determined using square wave voltammetry (SWV) with glassy carbon working microelectrode with a mercury thin film, platinum counter electrode, and Ag/AgCl reference electrode. Ni was studied through the formation of the dimethylglyoxime-Ni (Ni-DMG) complex, while Al was studied through the formation of the Alizarin R-Al complex. The detection limit found for Ni-DMG and Alizarin R-Al complexes were 1.70 ¥ 10 -7 and 1.0 ¥ 10 -8 mol L -1 , respectively. The voltammetric anodic curves for the Alizarin R-Al complex were recorded over the potential range from -0.8 to -0.05 V while the voltammetric cathodic curve for the Ni-DMG complex was recorded over the potential range from -0.7 to -1.2 V. These methods detected low concentrations of Ni and Al in biological samples efficiently.

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Lipid Increase Induced by Lead Accumulation in Tilapia Oreochromis niloticus

Cited by 19 publications

References 0 publications

<b>Removal of lead(II) ions from aqueous solutions using activated carbon from <i>Militia ferruginea</i> plant leaves</b>

<b>Removal of lead(II) ions from aqueous solutions using activated carbon from <i>Militia ferruginea</i> plant leaves</b>

Environmental Characteristics and Water Quality of a Drainage Basin Impacted by Human Activities

Square Wave Voltammetry in the Determination of Ni2+ and Al3+ in Biological Samples

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