Hybrid Adsorbent for Removal of Cd(II), Cu(II), Pb(II) and Zn(II) from Waters Using Submersible Device
Journal Title: Chemical Science International Journal - Year 2017, Vol 20, Issue 3
Abstract
Mesoporous carbon and humic acid - native and oxidized with 5% or 15% hydrogen peroxide - were used to obtain hybrid adsorbents MC-HA, MC-HA5, and MC-HA15, respectively, for removing certain metal ions from water. Fine particles of the hybrid adsorbents were characterized by various methods. The concentration of the functional groups capable of binding metal cations in the hybrid adsorbent increased from 1.2 mmol/g in MC-HA to 1.8 mmol/g in MC-HA5 and MC-HA15. The adsorption capacity depends on pH, and at pH 6.0, it has the following order (mmol/g): Cu(II) (1.0) > Pb(II) (0.65) > Zn(II) (0.46) > Cd(II) (0.38). The adsorption process is fast and reaches the equilibrium at low concentration. The Langmuir isotherm fits the experimental adsorption data better than the Freundlich model. Prepared adsorbents were fixed on a highly porous matrix to obtain a material suitable for simple submersible devices. A high efficiency of multi-metal removal (96.1-100%) and recovery (83.5-100%) by MC-HA5 remained in at least five consecutive adsorption-desorption cycles of model wastewater treatment. The possibility of its use for the remediation of contaminated reservoirs is also shown in a full-scale experiment.
Authors and Affiliations
Boris S. Smolyakov, Alexey K. Sagidullin
Keywords
Related Articles
- EP ID EP319718
- DOI 10.9734/CSJI/2017/36823
- Views 87
- Downloads 0
Comparative Alpha-amylase Inhibitory Properties of the Leaf Extracts of Petiveria alliacea L.
Aims: The study was designed to determine the phytochemical contents and the inhibitory effects of the leaf extracts of Petiveria alliacea L. on alpha-amylase enzyme. Study Design: Phytochemical Screening and in-vitro e...
Simulation of Kinetic Model for Anaerobic Digestion of Pharmaceutical Wastewater
This work presents the treatment of the pharmaceutical wastewater using anaerobic digestion was carried out in this work. The results obtained showed that most of the wastewater parameters were reduced to acceptable leve...
Analysis of Nitrates and Phosphates in Drinking Water Samples Collected from Tea Growing Community, Nandi Hills, Kenya
Nitrates and phosphates are among the major inorganic pollutants in the environment, primarily contributed by nitrogenous and phosphate fertilizers, organic manures, human and animal wastes, and industrial effluents thro...
Study of the Influence of Alkyl Chain Cation Solvent Interactions on the Slope of ϕv v/s √C Curves in 1, 3-Butanediol-DMF Solvent Mixtures by Apparent Molar Volume Measurements
The concept of Frank’s hypothesis (that is the effect of large tetra alkyl ammonium iodides on the solvent structure, especially in the ion – ion and ion – solvent interactions) was found to be not applicable when water...
Heavy Metals Presence in Some Vegetables and Crops Harvested From Farms in Ebocha, Egbeda and Igbo-Etche in Rivers State, Nigeria
Studies of the presence of heavy metals were carried out on some vegetables and crops harvested from farms in Ebocha, Egbeda and Igbo-Etche in Rivers State, Nigeria. These farms are located in communities where oil explo...