Browsing by Author "Machunda, Revocatus"
Now showing items 1-20 of 26
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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 ... -
Assessment of water quality variation in rivers through comparative index technique and its reliability for decision making
(Tanzania Journal of Science, 2018)The National Sanitation Foundation (NSF) and Weighed Arithmetic Index (WAI) methods for water quality index (WQI) have been studied to evaluate their reliability in water quality assessment in rivers. Water samples were ... -
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 ... -
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 ... -
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 ... -
Highly porous biomass-based capacitive deionization electrodes for water defluoridation
(Springer Nature Switzerland AG., 2019-12-09)The high concentration of fluoride (F−) in water sources is the main challenge in major fluoride belts. Though capacitive deionization (CDI) with porous carbon electrodes is the promising alternative in removing charged ... -
Influence of fluoride on the prevalence of diabetes mellitus in selected fluoride endemic areas of Tanzania
(International Journal of Biosciences, 2019-11-15)Diabetes Mellitus prevalence in developing countries and globally is on the increase due to various factors and its association with excessive fluoride contamination is not much elucidated. This study aims to determine ... -
Influence of Macrophyte Types towards Agrochemical Phytoremediation in a Tropical Environment
(International Journal of Engineering Research and General Science, 2014-09)The presence of agrochemicals waste water from agricultural fields poses major environmental and human health problems which may be solved by phytoremediation technologies. Phytoremediation is the use of plants to remediate ... -
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 ... -
Insecticidal Efficacy of Syzygium aromaticum, Tephrosia vogelii and Croton dichogamus Extracts against Plutella xylostella and Trichoplusia ni on Brassica oleracea crop in Northern Tanzania
(AIMS Agriculture and Food, 2020-12-30)The insecticidal efficacy of 10%, 5% and 1% w/v of Tephrosia vogelii, Croton dichogamus and Syzygium aromaticum aqueous plant extracts were assessed against larvae of Plutella xylostella and Trichoplusia ni on Brassica ... -
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 ... -
Life cycle analysis of potential municipal solid wastes management scenarios in Tanzania: the case of Arusha City
(Springer Nature, 2021-01-07)The municipal solid wastes (MSW) management technologies in most cities of developing countries pose a continuous risk of contaminating the environment and affecting human health adversely; often because MSW technologies ... -
Open-Source Software Application for Hydrogeological Delineation of Potential Groundwater Recharge Zones in the Singida Semi-Arid, Fractured Aquifer, Central Tanzania
(MDPI, 2020-05-17)This study attempted to delineate and map potential groundwater recharge zones of the Singida, semi-arid, fractured crystalline basement aquifer using open source remote sensing and GIS software. Various thematic maps ... -
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 ... -
Physicochemical and Microbiological Variations in Rivers on the Foothills of Mount Meru, Tanzania.
(International Journal of Scientific & Engineering Research, 2017-09-09)Little is known on the physicochemical and microbiological changes in Nduruma, Tengeru and Maji ya Chai Rivers. Such important variations were studied during wet and dry seasons in 2015. Water samples from various ... -
Plant biomasses for defluoridation appropriateness : unlocking their potentials
(Research Journal in Engineering and Applied Sciences, 2014)Fluoride and fluorosis are endemic to many countries including Tanzania. Performances of different materials for use in water defluoridation systems have been reported. Some of these materials are; alum, oxides and hydroxide ... -
Potentials of agric wastes activated carbons for water softening
(Research Journal in Engineering and Applied Sciences, 2014)Various studies have been conducted to address softening of hard water. Ion exchange, electro-based techniques, membrane filtration and adsorption are the most reported techniques in softening hard water. In the present work, ... -
Removal of Hydrogen Sulfide from Biogas Using a Red Rock
(Hindawi, 2020-01-27)The potential of red rock (RR) materials for the removal of H2S from biogas was studied. The rock samples were collected, sieved, and organized in various particle size ranges such as 0.32-250 μm, 250-500 μm, 500-750 μm, ... -
A review on strategies to optimize metabolic stages of anaerobic digestion of municipal solid wastes towards enhanced resources recovery
(BioMed Central Ltd, 2019-12-17)Recently, there are increased efforts by municipals and researchers to investigate the potential of utilizing municipal solid wastes (MSW) for resources recovery. In many parts of developing countries, MSW is mostly collected ... -
Sanitation and Hygiene Practices in Small Towns in Tanzania: The Case of Babati District, Manyara Region
(The American Society of Tropical Medicine and Hygiene, 2020-08-17)Formative research findings from the fast-growing Babati town were used to assess the prevalence of sanitation and hygiene practices among individuals and institutions and associated factors. A cross-sectional study involving ...
