Department of Chemistry: Recent submissions
Now showing items 261-280 of 326
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Removal of tebuconazole from wastewater by zeolite X: kinetics and thermodynamics studies
(2014-08)Tebuconazole, a widely used fungicide is toxic to the environment and has been reported as a water contaminant. In this study, the adsorption of aqueous solution tebuconazole onto faujasite X (NaX) was investigated in ... -
Effects of zeolite X on dissipation of hexazinone from agricultural waste waters in Western KenyaEffects of zeolite X on dissipation of hexazinone from agricultural waste waters in Western Kenya
(2013)Dissipation of hexazinone in Zeolite X treated wastewater followed pseudo first-order kinetics giving a calculated half-life of 41 days compared to a half-life of 144 days in untreated wastewater. The herbicide degraded ... -
Effects of faujasite X and Y zeolites on the 1, 1, 1-trichloro-2, 2’bis (p-chlorophenyl) ethane (DDT) degradation during water purification
(2013)The ability of zeolites to abstract and denature organochloride pesticides finds application in water purification practices. In this study, activated faujasite X and Y zeolites were separately exposed to 1, 2 and 4 ... -
The mechanism of 2-chlorobiphenyl oxidative degradation by nanoscale zero-valent iron in the presence of dissolved oxygen
(Springer Berlin Heidelberg, 2017-11-01)It has recently been demonstrated that the addition of nanoscale zero-valent iron (nZVI) to oxygen-containing water or soil aquifers results in the oxidation of organic compounds. However, there has been little insight ... -
Fate processes of chlorobenzenes in soil and potential remediation strategies: A review
(Elsevier, 2017-06-01)Chlorobenzenes (CBs) are a group of organic pollutants that pose a high environmental risk due to their toxicity, persistence and possible transfer in the food chain. Available data in literature show that CBs are ... -
Effects of nitrogenous fertilizer rates, plucking intervals and location of production on the micronutrient levels of clonal black tea.
(International Society of Tea Science, 2014)Micronutrients are important to both animal and plant life. In plants, the levels can vary widely due to biotic and abiotic factors. Tea is widely grown and its beverages are claimed to be the most widely consumed ... -
Black tea: Biochemical changes during processing
(Oxford University Press, New York, 2014) -
Effect of copper (II) on the sorption/desorption of chlorsulfuron in five wheat growing regions of the Mara River Basin, Kenya
(Scienceedomain International, 2016) -
Genotype and environment interactions of yields and yield components of tea (Camellia sinensis) cultivars in Kenya
(Scientific Research Publishing, 2016)The tea crop provides income and employment to rural populations in many countries. In Kenya, tea, which is the leading export commodity crop, is grown in highlands east and west of the Rift Valley at altitudes ranging ... -
Structures and activities of academy of sciences
(Maseno University and “Excellence Center for Development Cooperation – Sustainable Water Management” (www. exceed-swindon.org) network, 2016) -
Challenges of maintaining tea quality
(2016)Tea (Camellia sinensis (L.) O. Kuntze) is an important cash crop contributing to economic wellbeing and wealth in many developing countries. The crop creates employment opportunities and development in the rural areas ... -
Variability of overhead volatile organic compounds in clonal tea (Camellia sinensis) and their influence on red crevice mite (brevipalpus phoenicis geijskes) infestati...
(2016)Tea production in Kenya is under threat due to red crevice mites (Brevipalpus phoenicis) infestations during droughts. Cultural pests control practices, eg use of resistant/tolerant cultivars are used in their control ... -
Effects of regional climate variability on the prevalence of diseases and their economic impacts on households in the Lake Victoria basin of Western Kenya
(Inderscience Publishers (IEL), 2016)Climate variability has a strong influence on disease prevalence and subsequently on economic wellbeing of the affected households. In this study, six regions were selected and clustered into three groups based on their ...