Browsing Research Articles [MEWES] by Author "Selemani, Juma"
Now showing items 1-12 of 12
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Analysis of spatial and temporal trend of hydro‑climatic parameters in the Kilombero River Catchment, Tanzania
Sigalla, Onesmo; Valimba, Patrick; Selemani, Juma; Kashaigili, Japhet; Tumbo, Madaka (Springer Nature Limited, 2023-05-15)Inadequate knowledge on actual water availability, have raised social-economic conficts that necessitate proper water management. This requires a better understanding of spatial–temporal trends of hydro-climatic variables ... -
Assessment of variation in marginal productivity value of water in paddy farming systems in times of water stress
Sigalla, Onesmo; Kadigi, Reuben; Selemani, Juma (MDPI, 2022-10-29)Global projections show that increases in agriculture water productivity (AWP) by 30 and 60% in rain-fed and irrigated agriculture, respectively, are required to ensure food security in the period 2000–2025. In sub-Saharan ... -
Distribution and yield of trace metals from the foot of Mount Kilimanjaro to the coastal of Indian Ocean: impacts of natural and anthropogenic factors
Selemani, Juma; Zhu, Xunchi; Majjid, Arafa; Zhang, Jing (ESS Open Archive, 2022)Cases of water related diseases due to metal pollution are increasing over the global. The condition is serious to most of developing countries as a results of industrialization and population growth. Dissolved and particulate ... -
Distribution of organic carbon: possible causes and impacts in the Pangani River Basin ecosystem, Tanzania
Selemani, Juma; Zhang, Jing; Muzuka, Alfred; Wu, Ying; Njau, Karoli; Zhang, Guosen; Mzuza, Maureen; Maggid, Arafa; Zhang, Miao; Qi, Lijun (CSIRO PUBLISHING, 2018-06-08)There is limited information on organic carbon in African rivers, especially from the eastern side. Here, we report distribution and impacts of total suspended matter (TSM), and dissolved and particulate organic carbon ... -
Hydrogeochemical similarities and groundwater-surface water interactions for the karst hydrological system of northwest Rwanda
Umutoni, Monique; Selemani, Juma; Rwiza, Mwemezi; Wali, Umaru (Springer International Publishing, 2023-08)The groundwater of karst environments is vulnerable to pollution due to its heterogeneous nature and can be completely depleted due to its strong connection to surface water when predominantly driven by natural and ... -
Improving biological treatment of textile wastewater
Laizer, Alpha; Bidu, Jerome; Selemani, Juma; Njau, Karoli (IWA Publishing, 2022-01-01)Textile industries are among the primary contributors of water pollution. Treatment of textile wastewater is very important before discharging it to the environment. In the present study, laboratory-scale anaerobic batch ... -
Integrated constructed wetlands treating industrial wastewater from seed production
Kiflay, Elizabeth; Selemani, Juma; Njau, Karoli (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 ... -
Land Use and Environmental Gradients Influence on Riparian Woody Plant Diversity and Structure in Lake Manyara Watershed Ecosystem, Tanzania
Kashindye1, Almas; Giliba, Richard; Mpanda, Mathew; Rwiza, Mwemezi; Selemani, Juma (Scientific Research Publishing, 2023-09-12)Riparian vegetations are important in supporting ecological connectivity between aquatic and terrestrial ecosystems. The structure and species composition of riparian woody plants have been subjected to multiple forces ... -
Multi-variate regression analysis of lake level variability: A case of semi-closed, shallow rift valley lake in Northern Tanzania
Okwi, Gustavio; Kumar, Sharma; Gao, Hongkai; Selemani, Juma; Njau, Karoli (Elsevier, 2022)Lakes are very important for domestic use, commercial purposes, and ecosystem sustenance; nevertheless, studies on how different stressors influence water resources are limited, posing challenges in the planning and ... -
Removal of arsenic in a sand filter coupled with zero valent iron
Edward, Daniel; Karungamye, Petro; Nelson, Grite; Selemani, Juma; Njau, Karoli (Elsevier, 2023-06-22)Arsenic (As) in wastewater has negative effects on the environment and human health, hence As containing wastes must be handled properly. Given the accessibility of metallic iron, studies investigating into the potential ... -
Seasonal water chemistry variability in the Pangani River basin, Tanzania
Selemani, Juma; Zhang, Jing; Muzuka, Alfred; Njau, Karoli; Zhang, Guosen; Maggid, Arafa; Mzuza, Maureen; Jin, Jie; Pradhan, Sonali (Springer, 2017-09-17)The stable isotopes of δ18O, δ2H, and 87Sr/86Sr and dissolved major ions were used to assess spatial and seasonal water chemistry variability, chemical weathering, and hydrological cycle in the Pangani River Basin (PRB), ... -
Use of 210Pb and 137Cs radionuclides as simple method of estimating sedimentation rates on reservoir
Selemani, Juma (Egyptian Society of Nuclear Sciences and Applications (ESNSA), 2023-01)Reservoirs are important for flood control, production of hydroelectric power, fishing, water harvesting and storage. Climate is changing, population and anthropogenic activities are increasing which increase sedimentation ...