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Author

Joel Brian Njewa

Observed names: Joel B. Njewa, Njewa, Joel
ORCID: 0000-0003-4560-9605
Observed ORCID: 0000-0003-4560-9605
OpenAlex ID: A5010405681
Synthesis and Characterization of Activated Carbons Prepared from Agro-Wastes by Chemical Activation
2022 · Joel Brian Njewa, Ephraim Vunain, et al. · Journal of Chemistry · 92
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Adsorption of chromium ions from tannery effluents onto activated carbon prepared from rice husk and potato peel by H3PO4 activation
2021 · Ephraim Vunain, Joel Brian Njewa, et al. · Applied Water Science · 75
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Recent advances and issues in the application of activated carbon for water treatment in Africa: A systematic review (2007–2022)
2023 · Joel B. Njewa, Victor O. Shikuku · Applied Surface Science Advances · 57
Adsorption of heavy metals onto food wastes: a review
2025 · Wilfrida Nyairo, Joel B. Njewa, et al. · Frontiers in Environmental Chemistry · 28
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The impact of dumping sites on air, soil and water pollution in selected Southern African countries: challenges and recommendations
2025 · Joel B. Njewa, Grace Mweta, et al. · Water Emerging Contaminants & Nanoplastics · 27
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Synthesis and Characterization of Activated Carbon from Agrowastes for the Removal of Acetic Acid from an Aqueous Solution
2022 · Joel Brian Njewa, Timothy Tiwonge Biswick, et al. · Adsorption Science & Technology · 21
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A review on extraction, isolation, characterization of bioactive compounds obtained from agri-food waste and their potential for industrial application
2025 · Joel B. Njewa, Maurice Monjerezi, et al. · Frontiers in Chemistry · 18
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Pharmaceutical and personal care products (PPCPs) and per- and polyfluoroalkyl substances (PFAS) in East African water resources: progress, challenges, and future
2022 · Victor O. Shikuku, Emily C. Ngeno, et al. · Physical Sciences Reviews · 10
Application of bone chars for the removal of chemical contaminants from water resources: a review
2025 · Joel B. Njewa, Hermann T. Dzoujo, et al. · Discover Chemistry. · 6
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A Systematic Review on Detection of Chlorpyrifos Herbicide Residues in Water Resources, Soil, and Vegetable Matrices: Possible Amendments
2023 · Joel Brian Njewa, James Jamzy Majamanda, et al. · Asian Journal of Chemical Sciences · 2
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Recent Advances on Activated Carbon from Corn Cobs
2024 · Joel B. Njewa, Victor O. Shikuku · CRC Press eBooks · 1
2 Pharmaceutical and personal care products (PPCPs) and per- and polyfluoroalkyl substances (PFAS) in East African water resources: progress, challenges, and future
2023 · Victor O. Shikuku, Emily C. Ngeno, et al. · De Gruyter eBooks · 1
Wastewater Clarification and Microbial Load Reduction Using Agro-Forestry and Agricultural Wastes
2021 · Joel B. Njewa, Ephraim Vunain, et al. · Tanzania Journal of Science · 1
Recent Advances in Antimicrobial and Antioxidant Food Additives Obtained From Agrifood Waste: A Review
2025 · Joel B. Njewa, Maurice Monjerezi, et al. · Journal of Food Quality
Turbidity Removal from Sullage Wastewater Using Musa paradisiaca Peels as a Natural Coagulant
2024 · Elisha Kanyimbo, Joel B. Njewa, et al. · Asian Journal of Chemical Sciences
Fluoride Levels in Borehole Water: The Case of Chiradzulu District in Malawi
2023 · Yohane A. Wesley, Joel B. Njewa, et al. · Asian Journal of Applied Chemistry Research
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Works count: 17
Citation count: 343
H-index: 8
I10-index: 8
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