Journal Articleshttps://hdl.handle.net/20.500.12504/982024-03-28T13:06:30Z2024-03-28T13:06:30ZCompliance and implementation of municipal solid waste management laws and regulations in Mukono district, UgandaDan, Kibuuka KiguliAmeria, NabukondeAlex, Barakagirahttps://hdl.handle.net/20.500.12504/15512024-01-17T00:14:03Z2023-09-01T00:00:00ZCompliance and implementation of municipal solid waste management laws and regulations in Mukono district, Uganda
Dan, Kibuuka Kiguli; Ameria, Nabukonde; Alex, Barakagira
Consumption and production of resources leads to generation of wastes that may be undesirable
in the environment. Solid waste management laws are put in place aimed at ensuring proper and
effective control and management of wastes in an area. This study was set out to assess the
compliance and implementation of municipal solid waste management laws and regulations in
Mukono district, Uganda. Specifically, the study sought to: characterize the solid wastes generated in Mukono municipality; determine the mechanisms of implementation of solid waste management
laws and regulations in Mukono municipality; and to assess the effectiveness of the solid waste
management laws and regulations in Mukono municipality. A case study design complimented with
both quantitative and qualitative approaches were employed to obtain the required data to answer
the stated objectives. A questionnaire and documentary review were used to collect the required
data for the study. A number of solid wastes including food and food wastes; glass, plastics and
metals; and textiles among others were generated in Mukono municipality. There are solid waste
management laws and regulations used in the management of wastes in Mukono municipality.
Some mechanisms including awareness creation and monitoring implementation processes have
been put in place for an effective implementation of municipal solid waste management laws. The
study found out that there has been an ineffective implementation of municipal solid waste
management laws in Mukono municipality which were most likely brought about by poor
leadership, inappropriate allocation of funds and low levels of awareness among members of the
local community. It is recommended that Institutions like the Environment Police and the National
Environment Authority should work hand in hand to strengthen the implementation of solid waste
management laws and regulations in the country. The government should enhance sensitization
campaigns about what the solid waste management laws and regulations entail. In addition, funds
required for implementation of the laws and regulations should be appropriated and be used for the
intended purposes.
2023-09-01T00:00:00ZRole of starch in one pot fabrication of mesoporous gamma-alumina with excellent fluoride sorption capacityWalter, OjokBrenda, MoodleyJohn, WasswaEmmanuel, NtambiWilliam, WanasoloJames, Bolenderhttps://hdl.handle.net/20.500.12504/14582023-10-18T00:13:35Z2023-08-01T00:00:00ZRole of starch in one pot fabrication of mesoporous gamma-alumina with excellent fluoride sorption capacity
Walter, Ojok; Brenda, Moodley; John, Wasswa; Emmanuel, Ntambi; William, Wanasolo; James, Bolender
Green synthesis of mesoporous γ-AƖ2O3, a cutting-edge material for sustainable application in medicine, engi-
neering, energy, and water treatment, is still challenging. Our study used a one-pot strategy for facile synthesis of
γ-AƖ2O3 by sol-gel method using starch from cassava waste. AƖ(OH)3 were bound to the O-H groups of the starch
molecule to form the AƖ(OH)3-starch complex in a nano-network confined in starch polymer cages. Its calcination
at 500 ℃ produced a mesoporous, highly crystalline water stable γ-AƖ2O3 with a pore size of 2.07 nm and an
extensive BET surface area (215 cm2/g). Using the response surface methodology (RSM), the as-synthesized
γ-AƖ2O3 was optimized for efficient fluoride removal from water. A central composite design (CCD) was used
to study the effect of initial fluoride concentration, pH, contact time, and sorbent dose on fluoride removal ef-
ficiency and optimization of the process. The relative importance of the sorption process variables to the fluoride
removal process was assessed using ANOVA. The quadratic model showed that the predicted response was
significantly correlated with the experimental response (R2 = 0.9667), with sorbent dose and pH being the
process’s most influential factors. Optimum conditions for 93.6% fluoride removal efficiency were sorbent dose
of 0.5 g, initial fluoride concentration of 10 mg/L, pH 7, and contact time of 137.5 min. A weakly acidic medium
favored fluoride removal from water, while the presence of PO4
3- and HCO3
- retarded the process. The sorption
data fitted well in the Langmuir isotherm (0.9783) and pseudo-second-order kinetic model (0.9999), indicative
of a chemisorption process. The maximum sorption capacity towards fluoride was 207.5 mg/g. A thermodynamic
study indicated that the sorption process was spontaneous and endothermic, with increased randomness at the
solid-solution interface. Sorption, desorption, sustainability, and leaching tests showed that the sorbent could be
used for sustainable fluoride removal at 8.3 USD/1000 liters of safe drinking water.
2023-08-01T00:00:00ZRole of Starch in One Pot Fabrication of Mesoporous gamma-alumina with Excellent Fluoride Sorption CapacityOjok, WalterMoodley, BrendaWasswa, JohnNtambi, EmmanuelWanasolo, WilliamBolender, Jameshttps://hdl.handle.net/20.500.12504/14282023-09-01T00:12:10Z2023-08-01T00:00:00ZRole of Starch in One Pot Fabrication of Mesoporous gamma-alumina with Excellent Fluoride Sorption Capacity
Ojok, Walter; Moodley, Brenda; Wasswa, John; Ntambi, Emmanuel; Wanasolo, William; Bolender, James
Green synthesis of mesoporous γ-AƖ2O3, a cutting-edge material for sustainable application in medicine, engineering, energy, and water treatment, is still challenging. Our study used a one-pot strategy for facile synthesis of γ-AƖ2O3 by sol-gel method using starch from cassava waste. AƖ(OH)3 were bound to the O-H groups of the starch molecule to form the AƖ(OH)3-starch complex in a nano-network confined in starch polymer cages. Its calcination at 500 ℃ produced a mesoporous, highly crystalline water stable γ-AƖ2O3 with a pore size of 2.07 nm and an extensive BET surface area (215 cm2/g). Using the response surface methodology (RSM), the as-synthesized γ-AƖ2O3 was optimized for efficient fluoride removal from water. A central composite design (CCD) was used to study the effect of initial fluoride concentration, pH, contact time, and sorbent dose on fluoride removal efficiency and optimization of the process. The relative importance of the sorption process variables to the fluoride removal process was assessed using ANOVA. The quadratic model showed that the predicted response was significantly correlated with the experimental response (R2 = 0.9667), with sorbent dose and pH being the process's most influential factors. Optimum conditions for 93.6% fluoride removal efficiency were sorbent dose of 0.5 g, initial fluoride concentration of 10 mg/L, pH 7, and contact time of 137.5 minutes. A weakly acidic medium favored fluoride removal from water, while the presence of PO43- and HCO3- retarded the process. The sorption data fitted well in the Langmuir isotherm (0.9783) and pseudo-second-order kinetic model (0.9999), indicative of a chemisorption process. The maximum sorption capacity towards fluoride was 207.5 mg/g. A thermodynamic study indicated that the sorption process was spontaneous and endothermic, with increased randomness at the solid-solution interface. Sorption, desorption, sustainability, and leaching tests showed that the sorbent could be used for sustainable fluoride removal at 8.3 USD/1000 liters of safe drinking water.
2023-08-01T00:00:00ZMedicinal plants used in the management of sexual dysfunction, infertility and improving virility in the east African community: a systematic reviewChristine, KyarimpaChristine, Betty NagawaTimothy, OmaraSilver, OdongoPatrick, SsebugereSolomon, Omwoma LugasiIvan, Gumulahttps://hdl.handle.net/20.500.12504/14262023-08-31T00:12:33Z2023-01-01T00:00:00ZMedicinal plants used in the management of sexual dysfunction, infertility and improving virility in the east African community: a systematic review
Christine, Kyarimpa; Christine, Betty Nagawa; Timothy, Omara; Silver, Odongo; Patrick, Ssebugere; Solomon, Omwoma Lugasi; Ivan, Gumula
Sexual disorders such as erectile dysfunction (ED), sterility, and sexual inappetence represent some of the complex reproductive
challenges that require addressing the underlying causes. Te aim of this paper was to systematically synthesize literature on the
ethnobotany, phytochemistry, bioactivities, and safety of plants used as remedies for managing sexual dysfunction and infertility,
and improving fertility and virility in the EAC. Trough an extensive review conducted in multidisciplinary electronic databases,
171 plant species were identifed to have been reported for the management of sexual inappetence (i.e., used as aphrodisiacs,
39.4%), ED (35.9%), infertility (18.7%), and increasing fertility (6.0%). Te most used plants are Mondia whitei, Acalypha
villicaulis, Combretum illairii, Erythrina abyssinica, Pappea capensis, Rhus vulgaris, and Warburgia ugandensis while roots
(44.9%), leaves (21.8%), stem and root barks (16.7%) of shrubs (35%), trees (31%), herbs (26%), and climbers (8%) are the
preferred organs for making decoctions (69%). Te research strides to date indicate that Citropsis articulata, Cola acuminata,
Ekebergia capensis, Plumbago zeylanica, Tarenna graveolens, Urtica massaica, and Zingiber ofcinale have been assessed for their bioactivity. Te majority (71.4%) of the plants either increased testosterone levels and mounting frequency or elicited prosexual stimulatory efects in male rats. More studies investigating the relevant pharmacological activities (aphrodisiac, fertility, and phosphodiesterase-5 inhibitory activities), safety aspects, responsible compounds, and clinical studies are warranted to establish the pharmacological potential of the unstudied species and elucidate the mechanism of action of the bioactive compounds.
2023-01-01T00:00:00Z