Research Articles [MEWES]: Recent submissions
Now showing items 421-440 of 474
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Synthesis of mesoporous silica with superior properties suitable for green tire
(Elsevier, 2012-09-25)In this article we report synthesis of mesoporous silica with superior properties for application in green tire (environmentally friendly tire) as filler. The synthesis was done using a newly innovated apparatus which ... -
Enhancement of porosity of sodium silicate and titanium oxychloride based TiO2–SiO2 systems synthesized by sol–gel process and their photocatalytic activity
(Elsevier, 2013-09-15)The textural properties of TiO2–SiO2 composites (TSCs) were successively enhanced using three approaches; (1) washing the hydrogels with different solvents, (2) using surfactant and (3) forming the TiO2 sol in ethanol ... -
Avoiding the Use of Exhausted DrinkingWater Filters: A Filter-Clock Based on Rusting Iron
(MDPI, 2018-05-02)Efficient but affordable water treatment technologies are currently sought to solve the prevalent shortage of safe drinking water. Adsorption-based technologies are in the front-line of these efforts. Upon proper design, ... -
Land-Use and Land Cover Changes on the Slopes of Mount Meru-Tanzania
(Current World Environment, 2018-12)Environmental transitions analysis was done in part of the land on the slopes of the foothills of Mount Meru in thirty (30) years’ time from 1986 to 2016 using satellite-derived land use/cover maps and a Cellular Automata ... -
Fluoride Variations in Rivers on the Slopes of Mount Meru in Tanzania
(Hindawi, 2018-01-23)This study reports the variations of fluoride ions in rivers on the slopes of Mount Meru in the northern part of Tanzania. More than 318 water samples were collected from Temi, Nduruma, Tengeru, andMaji ya Chai Rivers in ... -
Contamination of groundwater sources in emerging African towns: the case of Babati town, Tanzania
(Water Practice & Technology, 2018)Assessment of groundwater contamination potential was carried out in Babati, Manyara, Tanzania. Diazotization, cadmium reduction, ascorbic acid, ion selective electrode and membrane filtration analytical methods were used, ... -
Measurement of Pozzolanic Activity Index of Scoria, Pumice, and Rice Husk Ash as Potential Supplementary Cementitious Materials for Portland Cement
(Hindawi, 2017-08-06)This work investigated the properties of scoria and pumice as supplementary cementitious materials (SCMs) for Portland cement and compared to those of rice husk ash (RHA). X-ray fluorescence, X-ray diffraction, and ... -
Metallic iron for water treatment: leaving the valley of confusion
(Springer, 2017-07-31)Researchers on metallic iron (Fe0) for environmental remediation and water treatment are walking in a valley of confusion for 25 years. This valley is characterized by the propagation of different beliefs that have resulted ... -
Performance of constructed wetland integrated with sand filters for treating high turbid water for drinking
(IWA Publishing, 2017-03)The feasibility of constructed wetland integrated with sand filters (CW-SFs) for treating high turbid water for drinking was investigated. Turbid water of .1,000 NTU from Nadosaito dam in Monduli District, Tanzania was ... -
Seasonal water chemistry variability in the Pangani River basin, Tanzania
(Springer, 2017-09-17)The stable isotopes of δ18O, δ2H, and 87Sr/86Sr and dissolved major ions were used to assess spatial and seasonal water chemistry variability, chemical weathering, and hydrological cycle in the Pangani River Basin (PRB), ... -
Nutrients’ distribution and their impact on Pangani River Basin’s ecosystem – Tanzania
(Taylor & Francis Group, 2017-05-05)Surface and groundwater from Pangani River Basin (PRB) were sampled in dry and wet seasons, analysed for dissolved organic and inorganic nutrients (N, P, Si and Urea). There was spatial and seasonal nutrients’ variability, ... -
Hydrogeochemical characteristics and spatial distribution of groundwater quality in Arusha well fields, Northern Tanzania
(Springer, 2018-07-09)Arusha aquifers have been exploited intensively serving as the main source of domestic water supply in the city. But the quality of groundwater is not clearly documented for future planning and management. Hydrogeochemical ... -
Experimental analysis of air flow patterns in perfomance of flat plate solar collectors
(African Journal of Agricultural Research, 2015-02-05)Solar drying is one of the promising methods of reducing post-harvest losses in rural areas. Studies have shown that, heat transfer mechanisms in a solar collector influences the performance of solar dryers. This study ... -
Operating Conditions of A Locally Made Fixed-Bed Incinerator, a Case Study of Bagamoyo – Tanzania
(Science Publishing Group, 2015-03-18)To minimize the pollution from municipal solid waste incinerators, the study of operating conditions is imperative. The local design incinerators can be used for high performance combustion and minimize pollutions. The ... -
Mass And Energy Balance For Fixed Bed Incinerators
(Journal of Multidisciplinary Engineering Science and Technology (JMEST), 2015-09)An estimation of mass and energy balance of an incinerator is an important consideration toward the design and operation of the incineration process. This paper is aimed to study the mass and energy balance of a locally ... -
A review of the challenges and opportunities for water reuse in irrigation with a focus on its prospects in Tanzania
(Int. J. Environmental Engineering, 2015)Water reuse is one of the potential ways to complement the existing portable water sources. Its adoption is becoming of interest due to water shortages in many parts of the world. Its implementation is supported by several ... -
Energy Recovery from Municipal Solid Waste
(Regional Collaboration Conference, 2014-07)Energy flow analysis and thermal degradation of municipal solid waste was carried out using differential scanning calorimetry and thermo-gravimetric analyzer at heating rates of 10 K/min, 20 K/min, 30 K/min and 40 K/min ... -
The influence of stereochemistry of the active compounds on fluoride adsorption efficiency of the plant biomass
(Science Publishing Group, 2014-08-20)Several studies have reported various defluoridation capabilities of plant biomasses. The resultant variations in fluoride removal capacities are associated with the presence of different types of active functional groups ... -
Water hardness removal by coconut shell activated carbon
(Science Publishing Group, 2014-08-30)The present study reports the water softening by adsorption of hardness ions onto Coconut Shell Activated Carbons (CSAC). Characterization of CSAC was identified by FT-IR and SEM techniques. Batch experiments were ... -
Wastewater Treatment and other Research Initiatives with Vetiver Grass
(University of Dar es Salaam, 2003)This paper described the role of substrate (soil) with respect to the type of macrophytes (plants) planted in the wastewater treatment in Horizontal Subsurface Flow (HSSF) Constructed wetlands (CWs). Wastewater parameters ...