Research Articles [MEWES]: Recent submissions
Now showing items 361-380 of 503
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Alternative tanning technologies and their suitability in curbing environmental pollution from the leather industry: A comprehensive review.
(Elsevier Ltd., 2020-04-18)Chrome tanning remains the most favourite technology in the leather industry worldwide due to its ability to produce leather with attributes desirable for high-quality leather such as excellent hydrothermal stability, ... -
Analysis of spatio-temporal climate variability of a shallow lake catchment in Tanzania
(IWA Publishing, 2020-04-06)This study analyzed the trends and spatio-temporal variability in rainfall and temperature, and the length of the rainy season (LRS) in the Lake Manyara catchment, Tanzania, covering a period between 1988 and 2018 using ... -
Manufacturing of Functionally Graded Porous Products by Selective Laser Sintering
(Scientific.Net, 2009-10)Selective laser sintering (SLS) is a rapid prototyping technique which is used to manufacture plastic and metal models. The porosity of the final product obtained by SLS can be controlled by changing the energy density ... -
Predicting the lowest effluent concentration in capacitive deionization
(Elsevier B.V., 2013-08-30)Capacitive deionization (CDI) is a promising technology for desalination of brackish water with different applications such as in the pharmaceutical industry, semiconductor manufacturing, and domestic use. The CDI cell ... -
Ultrapure water from seawater using integrated reverse osmosis-capacitive deionization system
(Taylor & Francis Online, 2013-12-19)The use of water for particular application depends on its purity level. In accordance with the world health organization, water with total dissolved salts (TDS) less than 500 ppm can be considered good for human consumption. ... -
Integrating reverse electrodialysis with constant current operating capacitive deionization
(Elsevier Ltd., 2014-12-15)The presence of a salinity gradient between saline water streams may result in the production of electricity via either reverse electrodialysis (RED) or forward osmosis. While the former system generates electricity because ... -
Production of graded porous polyamide structures and polyamide-epoxy composites via selective laser sintering
(SAGE Publications, 2014-02-07)Selective laser sintering was used for producing uniformly porous and graded porous polyamide structures. The porous structures were infiltrated with epoxy to produce composites. The porous and composite specimens were ... -
Combined reverse osmosis and constant-current operated capacitive deionization system for seawater desalination
(Elsevier B.V., 2014-07-01)There is an increase in the use of water purification technologies to produce the purified water from saline water. The desalination process may either involve the use of a single desalination technology, or may include ... -
Hybrid Reverse Osmosis‐Capacitive Deionization versus Two‐Stage Reverse Osmosis: A Comparative Analysis
(John Wiley & Sons, Inc., 2014-06-06)Reverse osmosis (RO) is a high‐pressure single‐phase desalination process used to obtain freshwater from seawater/brackish water. The RO system shows high energy consumption for a given unit volume of pure water produced. ... -
Desalination using capacitive deionization at constant current
(Elsevier B.V., 2013-11-15)Capacitive deionization (CDI) is an emerging technology of desalinating brackish/seawater to attain freshwater. The process involves polarization of the two electrodes electrically using direct current; thus the cations ... -
Modeling the capacitive deionization batch mode operation for desalination
(Elsevier, 2014-09-25)Capacitive deionization (CDI) is an emerging desalination technology in which saline water flows through a pair of polarized/biased electrodes. The cations and anions are attracted towards the negative and positive electrodes, ... -
Energy minimization in monoethanolamine‐based CO2 capture using capacitive deionization
(John Wiley & Sons, Ltd., 2014-01-07)Post‐combustion CO2 capture using monoethanolamine (MEA) is a mature technology; however, the high energy input requirements for solvent regeneration are still a challenge for MEA‐based CO2 capture. In this paper, a novel ... -
Hybrid CV-CC operation of capacitive deionization in comparison with constant current and constant voltage
(Taylor & Francis Online, 2016-02-24)Capacitive deionization (CDI) is a technique used to desalinate saline water by means of electrical potential applied to the electrode along both sides of a spacer channel through which water flows. CDI operates either at ... -
Fish Swim Bladder-Derived Porous Carbon for Defluoridation at Potable Water pH
(Scientific Research Publishing Inc, 2016-10-25)The levels of fluoride in various ground water sources in East Africa are above the World Health Organization upper limit of 1.5 mg/L. Research on diverse defluoridation technologies has proven that adsorption stands out ... -
Status of Biomass Derived Carbon Materials for Supercapacitor Application
(Hindawi, 2017-01-31)Environmental concerns and energy security uncertainties associated with fossil fuels have driven the world to shift to renewable energy sources. However, most renewable energy sources with exception of hydropower are ... -
Biogas-slurry derived mesoporous carbon for supercapacitor applications
(Elsevier Ltd., 2017-09)This study reports on the transformation of biogas slurry into mesoporous carbon for supercapacitor electrodes. Pore structures have been modified by altering activation time, temperature and KOH/carbon mass ratio. The ... -
Crustacean derived calcium phosphate systems: Application in defluoridation of drinking water in East African rift valley
(Elsevier B.V., 2018-04-05)Calcium phosphate adsorbents, derived from prawns and crabs shell biomass wastes have been developed using wet chemistry and low temperature treatment. The adsorbents were characterized by X-ray diffractometry and Fourier ... -
Performance optimization of integrated electrochemical capacitive deionization and reverse electrodialysis model through a series pass desorption process
(Elsevier, 2017-06-15)A capacitive deionization (CDI) system is one of the emerging desalination technologies used to purify brackish water. It is an electrochemical technology that uses electrically charged porous electrodes to remove salt ... -
Fish bladder-based activated carbon/Co3O4/TiO2 composite electrodes for supercapacitors
(Elsevier B.V., 2019-06-15)Cobalt oxide/titanium dioxide/activated carbon (Co3O4/TiO2/Ac) composite was synthesized using simple sol-gel method before annealing at 300 °C. Fish bladder derived porous carbon used for the composite was synthesized by ... -
Biomass-based carbon electrode materials for capacitive deionization: a review
(Springer Nature Switzerland AG., 2019-06-27)Capacitive deionization (CDI) is a promising water purification technology which works by removing salt ions or charged species from aqueous solutions. Currently, most of the research on CDI focuses on the desalination of ...
