PhD Theses and Dissertations [MEWES]

Metal oxides modified Carbon electrode materials for Fluoride and Paraquat removal from water by capacitive deionization

Alfredy, Tusekile (NM-AIST, 2024-06)

Capacitive deionization (CDI) is an emerging water treatment technology with many advantages, including low energy consumption, high efficiency, low cost, green and pollution free electrode regeneration. However, the ...

The impacts of land use and climate change on Simiyu river discharge and the riverine sediment dynamics flowing towards lake Victoria

Shinhu, Renatus (NM-AIST, 2024-07)

This study aimed to trace the dominant sources of riverine sediments and assess climate change's current and future impacts on the river discharge at the critical agroecological region of the Simiyu catchment. Geochemical ...

Application of a constructed wetland for the removal of antibiotic residue, antibiotic-resistant bacteria, and antibiotic-resistance genes from pharmaceutically contaminated wastewater

Karungamye, Petro (NM-AIST, 2024-06)

The significant increases in abundance of pharmaceuticals, antibiotic-resistant bacteria (ARB), and antibiotic resistance genes (ARGs) in the environment have drawn attention over public health. The presence of these ...

Potential use of zero-valent iron in enhancing performance and resource recovery during the anaerobic digestion of domestic sewage

Bakari, Omari (NM-AIST, 2024-08)

Incorporating metallic iron (Fe 0 ) into anaerobic digesters can improve organics (chemical oxygen demand (COD)), phosphorus, and nitrogen from contaminated water. However, no study has systematically assessed ...

Investigation of uranium derived from phosphate fertilizers on plants uptakes and bacterial diversity in selected agricultural soils of east africa

Mwalongo, Dennis (NM-AIST, 2024-08)

Different types of phosphate fertilizers (PFs) used in agriculture to increase soil fertility contain uranium (U) as an accompanying element. Uranium is both toxic and slightly radioactive. This study investigated the ...

Valorisation of solid sisal leaves decortication wastes using black soldier fly (hermetia illucens l.) larvae

Konyo, Aziza (NM-AIST, 2024-08)

The amount of waste generated from sisal industries during sisal fiber production is huge and its management is still challenging and a menace to the environment. These wastes include sisal wastewater and sisal leaf ...

Optimization of arsenic(III) and mercury(II) removal from non-competitive and competitive sorption systems onto activated carbon

Bayuo, Jonas (NM-AIST, 2024-07)

Heavy metals exist in the ecosystem both naturally and due to anthropogenic activities and as recalcitrant pollutants; they are non-biodegradable and cause acute and chronic diseases to human beings and many lifeforms. ...

More than pollutant removal: constructed wetlands and waste stabilization ponds as biodiversity hotspots and community assets in Tanzania

Msaki, Gerubin (NM-AIST, 2024-05)

Waste stabilization ponds (WSPs) and constructed wetlands (CWs) are important ecotechnologies for wastewater treatment. Despite their potential and wastewater management being challenging in urban and peri-urban areas ...

Solvothermal liquefaction of orange peels and catalytic upgrading of biocrude into transportation fuel over a hybrid catalyst

Kariim, Ishaq (NM-AIST, 2024-08)

The efficient valorization of biomass for energy-derived biocrudes is essential for effective waste management. However, the production of biocrudes with high energy and reduced oxygen contents during the liquefaction ...

Influence of rice husk derived nano-silica on performance, emissions, and combustion characteristics of diesel engine fueled with baobab biodiesel

Kapile, Fredrick (NM-AIST, 2024-08)

The increasing number of on-road automobiles as a result of an exponential increase in population and lifestyle places enormous strain on depleted fossil petroleum fuel, energy security, and environmental stability. ...

Effect of irrigation water cut-off position along furrows on water saving and productivity

Banda, Benjamin (NM-AIST, 2024-08)

Despite being widely practised technique by smallholder farmers, cut-off technique continues to register low productivity and has not been adequately investigated to improve the status quo. This study aimed to investigate ...

Emerging pollution, antimicrobial resistance, and the applicability of biochar adsorbents: A comprehensive study in African water systems

Ripanda, Asha (NM-AIST, 2024-07)

The impacts of antimicrobial resistance (AMR) extend far beyond clinical settings, permeating into agriculture and the economy, precipitating dire consequences such as compromised treatment efficacy, diminished ...

Computational and experimental performance analysis of a runner for gravitational water vortex power plant

Faraji, Adam (NM-AIST, 2024-08)

Energy generation through water is one of the most economic sources of power. On the other hand, isolated and rural communities can both benefit from using micro-hydropower to power their homes. The gravitational water ...

Hydrological System and Water Balance of Ungauged Crater Lakes of the Northern Crater Highlands

Lucas, Godwin; Komakech, Hans; Shemsanga, Ceven (Tanzania Journal of Engineering and Technology, 2023-10)

The study aimed to unveil the hydrological system and water balance of the ungauged crater lakes with major focus on the Emakati Lake which occupy 46% of the Empakaai Crater associated to the East African Rift Valley ...

Fenton-mediated solar-driven photocatalysis of industrial dye effluent with polyaniline impregnated with activated TiO2-Nps

Oyetade, Joshua; Machunda, Revocatus; Hilonga, Askwar (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 ...