Nickel pollution

Toxic metals in water systems pose a global health risk. Thus, multifunctional water monitoring and treatment materials are indispensable. Nickel ions, a frequent heavy metal pollutant, affect ecosystem function. This study investigates the utilization of Al2O3@g-C3N4 (AlCN) nanosorbent for adsorbing Ni (II) ions from aqueous solutions.

9p visergeyne 18-06-2024 0 0   Download

In this study, we synthesized magnetic activated carbon (MAC) derived from Litsea glutinosa seeds, which was applied to eliminate methylene blue and nickel ions in the aeration tank of the biological treatment system. Structural characteristics and adsorption properties of MAC were studied. The obtained results revealed that the removal efficiency of these pollutants significantly improved as a combination of MAC and activated sludge, especially in the case of nickel ions removal.

7p dianmotminh02 03-05-2024 2 1   Download

Heavy metals are hazardous pollutants for humans, animals and plants, when their threshold concentration exceeds. Tobacco can accumulate higher concentrations of heavy metals, and the genotypic differences of tobacco in heavy metal uptake and their growth responses have not been clearly examined. In this study, the effects of nickel (Ni) and lead (Pb) on phytoremediation capabilities were tested in four local Oriental tobacco cultivars (Basma, Akhisar, Sarıbağlar and Dibek).

12p hanthienngao 30-11-2021 11 0   Download

A review of the studies dealing with the removal of chromium, cadmium, and nickel ions with different adsorbents published in the literature between 2014 and 2018 is given in tabular form, along with the adsorption conditions, adsorption isotherm, and kinetic models applied by the authors to model the experimental data and adsorption capacities. The review focuses on the efficiency of ion removal.

25p tudichquannguyet 29-11-2021 8 1   Download

The aim of this research work was to study the effect of deposition current density on microstructure and surface morphology of electrodeposited nickel coatings. For this purpose, nickel deposits have been synthesized by direct current from Watts bath without additive, to limit the incorporation of pollutants resulting from surface adsorption or electro-activity of these compounds. Nickel deposits have been investigated by scanning electron microscopy and X-ray diffraction. Cyclic voltammetry was also used to gain information on the general behavior of the deposition.

10p tudichquannguyet 29-11-2021 8 0   Download

The present study is a preliminary investigation regarding an attempt to provide low cost, efficient and an emerging eco-friendly technology for the removal of nickel from the nickel polluted environment by the use of wild type Chlorella Sp.

11p dayhoctainha 10-09-2020 18 1   Download

Heavy metals like cadmium, nickel, lead, chromium, mercury etc are important environmental pollutants in areas with anthropogenic pressure. Their presence in the atmosphere, soil and water, even in traces can cause serious problems to all organisms. Heavy metal accumulation in soils is of great concern in agricultural production due to the adverse effects on food quality, crop growth (Ma et al., 1994) and environmental health. Heavy metal bioaccumulation in the food chain can be especially highly dangerous to human health.

12p angicungduoc5 12-06-2020 15 1   Download

Activated carbon (AC) has been proven to be an effective adsorbent for the removal of a variety of pollutants. AC is extensively used for adsorption because its high surface area is welldeveloped internal micro porosity. The objective of this study is to determine the optimal condition of the surface modification process of activated carbon from rice husk (ACRH) using HNO3.

8p cumeo3000 01-08-2018 37 1   Download

The two maquiladoras in our sample were selected on the basis of two criteria: (i) each is reputed to be a leading industrial source of air pollution, and (ii) the detailed technical data needed to estimate their emissions are available. Some brief additional explanation may be helpful. We began the process of selecting maquiladoras for this study with a list of Paso del Norte’s leading industrial sources of air pollution, compiled from informal information provided by local stakeholders. We used U.S.

0p doipassword 01-02-2013 51 4   Download

Liquid waste from Nong Son uranium ore processing is treated with concentrated acid, agglomerated, leached, run through ion exchange and then treated with H2O2 to precipitate yellowcake. The liquid radioactive waste has a pH of 1.86 and a high content of radioactive elements, such as: [U] = 143.898 ppm and [Th] = 7.967 ppm. In addition, this waste contains many polluted chemical elements with high content, such as arsenic, mercury, aluminum, iron, zinc, magnesium, manganese and nickel. The application of the triditional method as one stage...

8p dem_thanh 22-12-2012 50 3   Download