Masters Theses and Dissertations [MEWES]: Recent submissions
Now showing items 21-40 of 71
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Production of biogas as a waste management option for textile effluent sludge: a case study of the a to z textile mills ltd
(NM-AIST, 2020-12)Textile effluent sludge management is becoming a major environmental management issue in many agro-processing industries throughout Africa. This is mostly due to the limited and ineffective means of management. This ... -
Performance of inclined plates settler integrated with constructed wetland for high turbidity water treatment
(NM-AIST, 2021-07)The purpose of this study was to investigate and demonstrate a cost-effective treatment technology for high turbid water, commonly used for domestic purposes in rural areas of Tanzania where conventional water treatment ... -
Assessment of fluoride removal in a batch electro‒coagulation process
(NM-AIST, 2021-06)A presence of excessive amounts of fluoride than the prescribed standards has been reported in sources of domestic water supply around mount Meru slopes and other parts in Tanzania while efforts to remove the excessive ... -
Assessment of fluoride bioaccumulation in catfish grown in fluoride rich waters
(NM-AIST, 2021-08)Fluoride bioaccumulation in fish poses a significant impact to their growth performance, survival and consequently to the upper trophic levels. Few studies have reported the impact of high fluoride concentration and their ... -
Application of modified lignocellulosic materials as green flocculants for brewery wastewater treatment
(NM-AIST, 2021-03)Coagulation–flocculation technique is usually used in wastewater treatment by employing conventional inorganic materials such as alum and ferric chloride. Due to environmental challenges associated with the use of inorganic ... -
Performance of horizontal subsurface flow constructed wetland integrated with floating wetland and anaerobic baffled reactor in treating seed production wastewater
(NM-AIST, 2021-04)Discharge of untreated or partially treated industrial wastewater is the major contributor to aquatic environmental pollution. Seed producing industrial wastewater is composed of high organic matter, nutrient, and suspended ... -
Impact of tobacco curing on the environment andsocio-economic aspects in the Urambo District
(NM-AIST, 2021-07)Despite the efforts that have been employed to reduce tobacco curing related deforestation in many countries including Tanzania. The economic importance of tobacco production on employment creation and foreign exchange ... -
Optimization of domestic biogas stove burner for efficient energy utilization
(NM-AIST, 2020-08)The inefficient indoor burning of fuel wood on traditional cook stoves generates pollutants, primarily carbon monoxide and many other human health-damaging emissions. It is from this risk that it is necessary to have an ... -
Enhancing the performance of a spray flash evaporation integrated with evacuated tube desalination system
(NM-AIST, 2021-02)Numerical analysis for heat exchanger for spray-assisted low-temperature desalination system is presented for an existing low-temperature desalination unit at Arusha Technical College (ATC). The current desalination unit ... -
High energy density materials based on fluorinated bridged trinitromethyl azo triazole derivatives: a quantum chemical study of thermodynamic and energetic properties
(NM-AIST, 2021-03)High energy density materials (HEDM) have gained extensive attention due to their energetic properties and safety issues. Nitro and fluoro groups, among others, have become viable substituents in the HEDM triazole framework ... -
Assessment of the impacts of groundwater pumpage on the future water supply sustainability in Zanzibar, Tanzania
(NM-AIST, 2020-12)In the present study, a 42-year record of rainfall and temperature from Airport and a 43-year rainfall record from Kizimbani meteorological station were analyzed to understand how these climatic variables are affecting ... -
Groundwater recharge estimation and quality on the southern slopes of mount Kilimanjaro, Tanzania
(NM-AIST, 2021-07)This study was undertaken to estimate groundwater recharge rates using three methods (water table fluctuation (WTF), chloride mass balance (CMB) and soil moisture balance (SMB), as well as assessing the impact use of the ... -
Assessing adoption and water productivity of the system of rice-intensification under farmer-led irrigation system in northern Tanzania
(NM-AIST, 2021-02)This study was conducted to evaluate farmers‟ appropriation of the system of rice intensification (SRI) in an informal irrigation scheme in northern Tanzania. Understanding the integration and performance of SRI in the ... -
Performance optimization of unplanned water distribution networks in fast growing towns: a case study of Mwanza city, Tanzania
(NM-AIST, 2021-07)High Non-Revenue Water (NRW) and unreliable water supply services are major challenges in operations of the water networks in most of the fast-growing cities in developing countries. The present study aims at investigating ... -
Performance investigation of the slaughterhouse wastewater treatment facility: a case of Mwanza city slaughterhouse, Tanzania
(NM-AIST, 2021-01)The present study engaged onsite operations and laboratory analysis for Mwanza City Slaughterhouse (MCS) wastewater to improve the efficiency of wastewater treatment of a newly installed facility. The MCS wastewater ... -
Effect of industrial dust deposition on photovoltaic module performance: Experimental measurements in tropical region
(NM-AIST, 2020-02)Dust particles accumulation affects photovoltaic module transmittance of photovoltaic solar cell glazing, and thus leading to substantial reduction of conversion efficiency owing to lower irradiance reaching the surface. ... -
Cryptogamic packed biofilter as potential adsorbent for co2, h2s and nh3 impurities from biogas
(NM-AIST, 2020-07)The presence of elevated concentrations of carbon dioxide, hydrogen sulfide, ammonia and trace impurities in biogas affect its caloric value as well as causes corrosion and are extremely toxic. There are various methods ... -
Removal of hydrogen sulfide from biogas using red rock materials
(NM-AIST, 2020-03)In this study, the potential of red rock materials for the removal of hydrogen sulfide from biogas was studied. The rock samples were collected, sieved and organized in various particle size ranges such as 0.32 - 250 µm, ... -
Theoretical and experimental studies of imidazolium based ionic liquids for supercapacitors application
(2020-03)The theoretical study of neutral ion pairs of 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM][NTf2]) has been performed. The formation ... -
Charge enhanced capacitive deionization electrodes for deionized water production
(NM-AIST, 2020-05)The deionized (DI) water of high purity standards is used in several industrial processes to manufacture products and technologies for high end applications. Deionized water is used in industrial processes such as to ...