Abstract
The adsorption of chromate on octacalcium phosphate (OCP) was investigated as a function of contact time, surface coverage, and solution pH [...]
Highlights
The hexavalent chromium Cr (VI) generated from various industrial processes, such as metallurgy, dyes, paints, inks, and plastics, is a major global concern, due to its harmful effects on humans and nature [1].As a result, the presence of this metal cation in nature is well controlled
The combined effect of both pH and contact time on the adsorption mechanism requires more investigation (Figure 1). Taking these considerations into account, the present study aims to investigate the complexation of hexavalent chromium with low-crystallized octacalcium phosphate (OCP)
The maximum adsorption efficiencies were found to increase with the amount of adsorbent (m)
Summary
The hexavalent chromium Cr (VI) generated from various industrial processes, such as metallurgy, dyes, paints, inks, and plastics, is a major global concern, due to its harmful effects on humans and nature [1]. The presence of this metal cation in nature is well controlled. The maximal concentration level of Cr (VI) allowed in drinking water, as determined by the US-Environmental. Protection Agency (EPA), is 0.05 mg/L [2]. Compliance with the EPA’s chromium rule requires additional industrial monitoring. Designing a treatment process which reduces the number of.
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