Materials, Energy, Water and Environmental Sciences: Recent submissions
Now showing items 401-420 of 665
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Seasonal and spatial variation of surface current in the Pemba Channel, Tanzania
(PLOS ONE, 2019-01-07)The surface current speeds within the Pemba channel were examined using 24 years of drifter data received from the Global Drifter Program. This study aimed to uncover varying surface current in the Pemba Channel in different ... -
Coastal upwelling and seasonal variation in phytoplankton biomass in the Pemba Channel
(African Journals Online, 2021-02-11)This study was conducted in the Pemba Channel off Tanga Region in northern Tanzania to investigate physical and chemical factors that drive changes in phytoplankton biomass. Three transects off Mwaboza, Vyeru and Sahare ... -
A comparison of aquatic macroinvertebrate and large branchiopod community composition between temporary pans of a conservation area and surrounding communal area in South Africa
(Taylor & Francis Online, 2020-03-08)Although temporary wetlands are often biodiversity hotspots that deliver multiple ecosystem services, they are also threatened by human exploitation. We conducted a comparative field study to investigate the impact of ... -
Where does land use matter most? Contrasting land use effects on river quality at different spatial scales
(Elsevier B.V., 2020-05-01)Understanding the influence of land-use activities on river quality has been a key focus of river monitoring programs worldwide. However, defining which land-use spatial scale is relevant remains elusive. In this study, ... -
Current status of textile wastewater management practices and effluent characteristics in Tanzania
(IWA Publishing, 2021-04-05)Textile wastewater from wet processing units is a major environmental problem. Most chemicals, including dyes, are only partly consumed, resulting in highly colored wastewater containing a variety of chemicals released ... -
Guanidinium tin halide perovskites: structural, electronic, and thermodynamic properties by quantum chemical study
(Springer Nature Switzerland AG., 2021-04-17)The orthorhombic phase of guanidinium tin halide perovskites C(NH2)3SnX3, X = Cl, Br, I has been studied by quantum chemical method. The lattice parameters are optimized to obtain the minimum energy using the density ... -
Assessment of fluoride removal in a batch electrocoagulation process: A case study in the Mount Meru Enclave
(Elsevier B.V., 2021-03-04)The presence of excessive amounts of fluoride than prescribed standards has been reported in various sources of domestic water supply around the slopes of Mount Meru and other parts in Tanzania. Efforts to remove the ... -
Clustering and Fuzzy Logic-Based Demand-Side Management for Solar Microgrid Operation: Case Study of Ngurudoto Microgrid, Arusha, Tanzania
(Hindawi, 2021-02-15)Permanent electricity availability should not be taken for granted since grid sustainability and reliability are at stake when there is no balance between supply and demand. This paper employs a load balancing demand-side ... -
Distribution of fluoride in beans and maize grown along the slope of Mount Meru, Tanzania
(Journal of Biodiversity and Environmental Sciences, 2019-11-30)This study assessed the uptake and distribution of fluoride in maize and beans grown in fluoride contaminated soils, (Ngarenanyuki) around Mount Meru in Northern Tanzania during the rainy season. The study revealed that ... -
Integrated constructed wetlands treating industrial wastewater from seed production
(IWA Publishing, 2021)The performance of an integrated wastewater treatment system composed of horizontal subsurface flow constructed wetland (HSSFCW), floating constructed wetland (FCW), and anaerobic baffled reactor (ABR) was studied for ... -
Performance of inclined plates settler integrated with constructed wetland for high turbidity water treatment
(IWA Publishing, 2021)The purpose of this study was to investigate and demonstrate cost-effective treatment technologies for high turbid waters, used for domestic purposes in rural areas of Tanzania where conventional community water treatment ... -
Community awareness on fluoride contaminant sources: a case study at Mount Meru slopes in Northern Tanzania
(International Journal of Biosciences, 2019-10-27)A study was conducted around the slopes of Mount Meru in Arumeru district of Arusha region at Ngarenanyuki ward, to update the awareness of the potential routes of human exposure to unacceptable levels of fluoride. ... -
Regeneration and carboxymethylation of cellulose and its derivatives: application assessment for brewery wastewater treatment
(Springer Nature Switzerland AG., 2021-02-13)Coagulation–flocculation technique is usually employed in wastewater treatment by applying conventional inorganic materials such as alum and ferric chloride. Due cost to environmental challenges associated with the use of ... -
Potential of anaerobic co-digestion in improving the environmental quality of agro-textile wastewater sludge
(IWA Publishing, 2020-08-30)Sludge from textile effluent treatment plants (ETP) remains a challenge for many industries due to inefficient and limited waste management strategies. This study explores the potential of using anaerobic digestion (AD) ... -
Why prepaid technologies are not a panacea for inclusive and sustainable rural water services in Tanzania?
(IWA Publishing, 2020-08-26)Poor sustainability of rural water schemes is a major problem in service delivery in sub-Saharan Africa. About half of the schemes fail one year after commissioning, mostly due to poor operation and maintenance. Many ... -
Simulation and performance analysis of municipal solid waste gasification in a novel hybrid fixed bed gasifier using Aspen plus
(Taylor & Francis Online, 2020-08-27)Thermochemical conversion technologies (incineration, gasification, and pyrolysis) have emerged as potential technologies for municipal solid waste management. Incineration is the most common thermo-chemical technology ... -
Trends towards Effective Analysis of Fluorinated Compounds Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
(Hindawi, 2021-02-03)Increased demand for monitoring and identification of novel and unknown fluorinated compounds (FCs) has demonstrated the need of sensitive fluorine-specific detectors for unknown FCs in both biological and environmental ... -
Seasonal profitability of soil and water conservation techniques in semi-arid agro-ecological zones of Makanya catchment, Tanzania
(Elsevier B.V., 2021-01-01)Soil and water conservation techniques are known to be profitable and widely promoted in sub-Saharan Africa. However, how their profitability vary across cropping seasons has not been fully explored. Thus, farmers are often ... -
Influence of land use change on nitrate sources and pollutant enrichment in surface and groundwater of a growing urban area in Tanzania
(Springer Nature Switzerland AG., 2021-01-31)In the present study, 3-year (1997, 2008 and 2017) satellite images as well as different hydro-chemical parameters, nitrogen and oxygen isotopic composition of nitrate were used to examine the impacts of land use and land ... -
Assessing Land Use/Cover dynamics of the Ngorongoro world heritage site in Tanzania using a hybrid CA–Markov model
(Authorea, 2020-10)In this study, land-use/cover pattern of the UNESCO world heritage site, Ngorongoro Conservation Area; is analyzed using the CA–Markov model with the help of RS and GIS. Hybrid classification techniques ware used to monitor ...
