Browsing Materials, Energy, Water and Environmental Sciences by Title
Now showing items 186-205 of 579
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An Evaluation of Sustainability Potential of Existing Septic Systems: A Fuzzy-Based Indexing Approach
(MDPI, 2022-05-05)In this study, a fuzzy-based indexing approach (FIA) is developed based on a conceptual framework regarding social, environmental, economic, and technical dimensions to evaluate the overall sustainability potential of ... -
Evaluation of the Oxidation Stability of Biodiesel Produced from Moringa oleifera Oil
(ACS Publications, 2011-10-19)Biodiesel is considered as an alternative fuel to petroleum-based conventional diesel fuel. Dependent upon the raw material, biodiesel can contain more or less unsaturated fatty acids in its composition, which are susceptible ... -
Evidence of climate change impacts on water, food and energy resources around Kilimanjaro, Tanzania
(Springer Nature Switzerland AG., 2019-11-08)This review presents research evidence of climate change and anthropogenic impacts on the slopes of Mt. Kilimanjaro and its implications on water, food and energy production (WFE nexus). While there exist divided scholarly ... -
The Exergy Analysis for the Air Gasification in a Hybrid Fixed Bed Gasifier
(Current Journal of Applied Science and Technology, 2021-07-31)Municipal solid waste (MSW) is becoming a concern as population in urban area is increasing. Several disposal methods (landfill and biochemical) have been used. However, waste to energy (WTE) particularly gasification ... -
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 ... -
Experimental Investigation of Soapstone and Granite Rocks as Energy-Storage Materials for Concentrated Solar Power Generation and Solar Drying Technology
(ACS Omega, 2023)The intermittence of solar energy resource in concentrated solar power (CSP) generation and solar drying applications can be mitigated by employing thermal energy storage materials. Natural rocks are well recommended thermal ... -
Experimental investigation of the variation in the potential of selected natural rocks as thermal energy storage materials
(NM-AIST, 2023-08)Fossil fuels cause greenhouse gas emissions and are perceived to deplete, hence the use of renewable energy is considered crucial. These renewables include the use of solar thermal energy in concentrated solar power (CSP) ... -
Experimental Investigations of Oxidation Stability of Biodiesel Produced from Manketti Seeds Oil (Schinziophyton rautanenii)
(ACS Publications, 2011-04-12)In this study, biodiesel from Manketti seeds oil (Schinziophyton rautanenii) was investigated to determine its suitability for use as a petrodiesel substitute. The fuel-related properties of Manketti oil methyl ester (MOME) ... -
Experimental Study of a Lab Scale Hybrid Fixed Bed Gasifier
(Science Publishing Group, 2020-02-04)Thermo-chemical conversion technologies (incineration, gasification and pyrolysis) have emerged as potential technologies for municipal solid waste management (MSWM). This is happening due to the increase of the need for ... -
Exploring the future impacts of urbanization and climate change on groundwater in Arusha, Tanzania
(Taylor & Francis Online, 2020-06-22)We combine satellite imagery, urban growth modelling, groundwater modelling and hydrogeological field expeditions to estimate the potential impacts in 2050 of rapid urbanization and climate change on groundwater in Arusha, ... -
Extracts from field margin weeds provide economically viable and environmentally benign pest control compared to synthetic pesticides
(Public Library of Science, 2015-11-23)Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but most progress has been shown in the laboratory. Consequently, research on pesticidal plants is failing to address gaps ... -
Extrapolations on the Use of Rhizobium Inoculants Supplemented with Phosphorus (P) and Potassium (K) on Growth and Nutrition of Legumes
(Scientific Research Publishing, 2014-10-22)Land scarcity and poor farming management practices has resulted in to intensive agriculture which rendered most of the soil in sub Saharan Africa depleted in essential plant nutrients. High prices of chemical fertilizer ... -
Fabrication of porous carbon nanofiber webs from polyacrylonitrile and cellulose acetate for NaCl removal from water using capacitive deionization
(IWA Publishing, 2024-01-01)Capacitive deionization (CDI) has shown potential in addressing freshwater scarcity. CDI's electrode design is a key to better performance as it determines the extent of water purification. For carbon electrodes, the pore ... -
Facile biosynthesis of Ag–ZnO nanocomposites using Launaea cornuta leaf extract and their antimicrobial activity
(NM-AIST, 2013-11-14)The quest to synthesize safe, non-hazardous Ag–ZnO nanoomposites (NCs) with improved physical and chemical prop- erties has necessitated green synthesis approaches. In this research, Launaea cornuta leaf extract was ... -
Factors influencing solid waste generation and composition in urban areas of Tanzania: The case of Dar-es -Salaam
(Science Publishing Group, 2014-07-30)Solid waste characterisation study was carried in Dar-es-Salaam to quantify the waste generation rates and composition. By studying solid waste generation trends for three socioeconomic statuses, it was found that the ... -
Farmer's appropriation of system of rice intensification practices in water-scarce irrigation schemes in Northern Tanzania
(Springer Nature Switzerland AG., 2021-02-08)The system of rice intensification (SRI), advocates new ways of rice cultivation which challenges farmers’ knowledge and skills to the extent that they are required to learn, experiment and integrate new principles to suit ... -
Fast Rate Production of Biodiesel from Neem Seed Oil Using a Catalyst Made from Banana Peel Ash Loaded with Metal Oxide (Li-CaO/Fe2 (SO4)3)
(Hindawi, 2020-08-27)Biodiesel is a possible remedy to the present toxic, finite sources and ever-diminishing crude fuels. Nonedible and locally available (Azadirachta indica) neem seed oil (NSO) as a second-generation feedstock was transformed ... -
Fe0-Supported Anaerobic Digestion for Organics and Nutrients Removal from Domestic Sewage
(MDPI, 2022-08-15)esults from different research suggest that metallic iron (Fe0) materials enhance anaerobic digestion (AD) systems to remove organics (chemical oxygen demand (COD)), phosphorus and nitrogen from polluted water. However, ... -
Fenton-mediated solar-driven photocatalysis of industrial dye effluent with polyaniline impregnated with activated TiO2-Nps
(Elsevier, 2024)Various integrated technologies have been investigated for the remediation of heavily polluted industrial dye effluent. Also, more than 70 % of these dyes are known to be solely azo dyes used in the textile industry ... -
Fertility management for maize cultivation in some soils of Western Kenya
(Elsevier, 2011-12-01)Soil fertility loss in Western Kenya is exacerbated by inadequate nutrient management and causes reduced maize yields. Given the diversity of soil types, cropping seasons, and the resource endowment of farmers, the magnitude ...