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The biomagnification forms of heavy metals, such as lead (Pb), copper (Co), and chromium (Cr), have a great impact on most organisms including humans. Pb from various sources has a destructive impact on sea and land biota Table 1.
Due to the high risks associated with chromium contamination in potable water, researchers have focused on developing effective removal strategies. Among these strategies, biosorption has emerged as a promising, cost-effective, and energy-efficient method for eliminating toxic metals, especially chromium.
Due to simple operation, broad applicability, high removal rate, and affordable reusability, adsorption has become the most promising and widely investigated technology for removing chromium from wastewater.
Cr (III) is converted into more toxic Cr (VI) by oxidation under natural conditions or chlorination disinfection during drinking water treatment. Chromium is widely used in industrial production, such as in the electroplating, tanning, and dyeing industries, mining, coal production, batteries, pulp, and papers , as shown in Figure 1.
Chromium is prevalent in all parts of domain i.e., soil, water, and air. Bioaccumulation of Cr (VI) leads to carcinogenesis and mutagenesis. Chromium remediation can be achieved via physical, chemical, and bioremediation. Recent advancement in the remediation of chromium has been discussed.
Lead is the most harmful heavy metal in every ecosystem which affects the health of humans and various other organisms. There is also a hidden perspective given that intake of various plant species can reduce lead accumulation and toxicity in the human body. This toxic metal is actively absorbed by humans.
The effects of pH, contact time, and dosage of wash solution on chromium (Cr +6) removal efficiency (RE) were investigated and optimized using response surface methodology (RSM). The projected Cr +6 RE under these …
The sulfuric acid in a lead acid battery is highly corrosive and is potentially more harmful than acids used in other battery systems cool the affected tissues and to prevent secondary damage.
The current LCA study assesses the potential effects of EC for simultaneously removal of lead, cadmium and chromium. The impact associates with iron electrode …
The current LCA study assesses the potential effects of EC for …
Heavy metal contamination of agricultural lands poses serious threat to food security. Lead …
Strong acid cation or weak acid cation or anion resins are used for lead removal. For example, the positively charged ions in cationic resins such as hydrogen and sodium ions …
While the trivalent chromium ion is generally stable, other oxidation states of chromium can undergo reactions and transformations depending on specific conditions and …
Sources of Pb are house paints, gasoline, lead bullets, pewter pitchers, batteries, faucets, plumbing pipes, and toys. In plants, Pb is capable of damaging chlorophyll, instability …
Difficulties are higher nowadays due to the metal concentration and their adverse effect worldwide. The biomagnification forms of heavy metals, such as lead (Pb), copper (Co), …
Numerous studies have investigated the removal of chromium from aqueous solutions by biosorption utilizing various adsorbents, with benefits including reduced sludge …
The LCA results show a favourable sustainability profile of the chromium waste recovery via a …
The effects of pH, contact time, and dosage of wash solution on chromium (Cr +6) removal efficiency (RE) were investigated and optimized using response surface …
Although this paper is aimed at the power lead–acid battery, the research method is also of significance for the power lithium-ion battery, and we will conduct relevant …
The LCA results show a favourable sustainability profile of the chromium waste recovery via a MFC with a GWP impact of −0.44 kg CO 2-eq. (∼0.8 kg CO 2-eq. (using the ReCiPe …
Every day, the lead acid battery industries release 120,000 L of wastewater. The presence of lead in this wastewater can range from 3 to 9 mg/L, whereas the permissible limit …
Purpose This paper will give an overview of LCA studies on lead metal production and use recently conducted by the International Lead Association. Methods The …
Present research was conducted to remove lead, chromium and cadmium simultaneously from synthetic water by electrocoagulation (EC) process using iron electrodes.
Although this paper is aimed at the power lead–acid battery, the research method is also of significance for the power lithium-ion battery, and we will conduct relevant research on the ...
The main functioning materials in lead–acid batteries are lead dioxide (PbO 2) at the electrode with a positive charge and lead (Pb) at the electrode with a negative charge …
Lead is a harmful heavy metal Lead is a naturally occurring metal. Its chemical and physical characteristics, such as its malleability, low melting point and resistance to corrosion, make it …
Performance evaluation of electrocoagulation process for removal of chromium (VI) from …
Heavy metal contamination of agricultural lands poses serious threat to food security. Lead (Pb) and Chromium (Cr) are among the most toxic heavy metals reported but least studied. Their …
Difficulties are higher nowadays due to the metal concentration and their …
Performance evaluation of electrocoagulation process for removal of chromium (VI) from synthetic chromium solutions using iron and aluminum electrodes. Turkish J Eng Environ Sci. …
Numerous studies have investigated the removal of chromium from aqueous …
Spent electrolyte from lead-acid battery contains high concentrations of sulfate acid and heavy metals; therefore without proper handling, they might cause severe …
Spent automobile batteries are one of the most significant secondary sources of harmful heavy metals for the environment. After being incorporated into the aquatic ecosystems, these metals ...
The industrial activities of the last century have caused massive increases in human exposure to heavy metals. Mercury, lead, chromium, cadmium, and arsenic have been the most common heavy metals ...