Chemistry Africa
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Removal of Turbidity from Domestic Wastewater Using Electrocoagulation: Optimization with Response Surface Methodology
Chemistry Africa - Tập 5 - Trang 123-134 - 2022
Turbidity is one part of the physical characteristics of wastewater that is
highly observed in domestic wastewater. The electrocoagulation process is an
effective method by applying only electric current with sacrificial electrodes
for the removal of turbidity from domestic wastewater under the consideration of
different operating parameters. In this study, current (0.03–0.09 A), pH (3–9),
and rea...
MgAl-Layered Double Hydroxide: An Efficient Material for Adsorptive Removal of Methyl Orange from Aqueous Solutions
Chemistry Africa - Tập 6 - Trang 323-333 - 2022
There is an ever-growing global concern of water pollution and water scarcity.
Numerous strategies are investigated within a holistic approach that includes
water treatment using inorganic and composite adsorbents. In this context,
MgAlCO3-layered double hydroxide (LDH) was synthesized by co-precipitation at pH
10 and characterized by XRD, FTIR, TGA, N2-adsorption–desorption and XPS.
MgAlCO3-LDH w...
Optimization of Tunisian Olive Pomace Oil Esterification Using Response Surface Methodology
Chemistry Africa - Tập 2 Số 3 - Trang 497-506 - 2019
Experimental Design Methodology Applied to the Degradation of a Cytostatic Agent the Imatinib Mesylate Using Fenton Process
Chemistry Africa - Tập 2 Số 1 - Trang 103-111 - 2019
Enhancing the Thermo-Mechanical Properties of Thermoplastic Starch Films Using Rice Straw Fibers as Reinforcement
Chemistry Africa - Tập 6 - Trang 2321-2329 - 2023
Nowadays, the need for biodegradable plastics is increasing because they are
environmentally friendly and can replace petroleum-based non-degradable plastics
that pollute the environment. Starch-based bio-plastics have huge potential to
replace synthetic polymer-based plastics due to their economic and environmental
advantages. However, the poor thermo-mechanical properties and high moisture
sensi...
A Review on Ion-exchange Membranes Fouling and Antifouling During Electrodialysis Used in Food Industry: Cleanings and Strategies of Prevention
Chemistry Africa - Tập 3 - Trang 609-633 - 2020
During the last decades, the interest of using ion-exchange membranes (IEMs) in
electrodialysis (ED) technologies has emerged in wastewater treatment, drinking
water and process water production as well as food industry and more recently in
processes of energy conversion and storage. Like in all membrane technologies,
the problem of fouling is one of the limitative phenomena of IEM efficiency and
...
A Computational Exploration of Ammonia Adsorption on the Kaolinite Clay Surface
Chemistry Africa - Tập 4 - Trang 905-914 - 2021
The adsorption mode of ammonia on the (001) surface of kaolinite was explored
using the periodic DFT/PBE-D3 method. The thermodynamics and electronic
properties such as adsorption energy, bond lengths and density of states were
calculated to investigate the adsorption mechanism. Calculated adsorption
energies were negative for ammonia-kaolinite complexes indicating a favorable
exothermic process. ...
A Simple and Green Preparation Route of Waste Textile Based Photocatalytic Biochars for Pollution Removal
Chemistry Africa - Tập 6 - Trang 629-642 - 2023
The waste recycling is one of the smart methods to control the increasing demand
for raw materials and environmental pollution. Photocatalytic biochars were
prepared by carbonization of waste textiles that would not be reused in the
industry. Virgin and FeCl2, H2SO4, H3PO4 impregnated waste samples were
carbonized at 300–400 °C for varying times. The functional groups and crystal
structure of bioc...
Assessment of Corrosion Resistance Potentials of Welded and Tempered UNS G10400 Carbon Steel in a Seawater Environment
Chemistry Africa - - 2024
Welded joints sometimes exhibit poor corrosion resistance due to variations in
chemical composition at the weld surface, or heat-affected zone (HAZ) caused by
induced stress, and microstructural changes. There is need to enhance weld
corrosion resistance and the microstructural properties of such joints through
post-weld tempering (PWT). In this study, the effect of PWT on the corrosion
resistance...
Ferrocene–Functionalized Carbon Nanotubes: An Adsorbent for Rhodamine B
Chemistry Africa - Tập 2 - Trang 113-122 - 2018
It is well-known that direct discharges of dye-contaminated wastewaters
generated from various industries (i.e., textile, cosmetics and food
industries,…) cause severe effects on both aquatic environment and human health.
Decontamination of dye-containing wastewaters using nanomaterials-based
adsorbents such as carbon nanotubes is regarded as an interesting field of
investigation to control these ...
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