Faculty of Engineering & the Built Environment: Recent submissions
Now showing items 141-160 of 190
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MODELLING OF FAECAL COLIFORM REMOVAL USING THE STELLA SOFTWARE. A CASE OF HORIZONTAL SUB-SURFACE FLOW CONSTRUCTED WETLAND IN TANZANIA
(2012-10-15)A number of studies have been conducted concerning wetlands systems in East Africa; most of which focused on the performance of constructed wetlands in the removal of TSS, Org-N, NH3-N, NO3-, NO2- and BOD5. However, ... -
Quantifying Total Water Productivity for Multiple-Use Small Reservoirs in Mzingwane Catchment, Zimbabwe
(2012-10-15)The Government of Zimbabwe embarked on construction of small, medium and large multiple-use dams as a strategy to increase the level of water security in the country. Over 10,000 dams have been constructed in communal ... -
An Assessment of the Quality of Water Services in Low-income areas of Malawi- A case study of Mtandile-Mtsiliza in the City of Lilongwe, Malawi.
(2012-10-15)Water supply utilities in Africa are finding it increasingly difficult to provide adequate services to the needy areas: their core business operations are often stagnant, compounded by an increase in peri-urban and poor ... -
Local Participation in Transboundary Water Resources Management: The Case of Limpopo Basin, Zimbabwe
(2012-10-15)IWRM-led water reforms in southern Africa have emphasised the creation of new institutions with little explanation regarding how the institutions can effectively engage with stakeholders at different levels, especially ... -
The Impact of Sub-Catchment Activity on River Water Quality: A case study of Mbabane River in the Ezulwini Valley, Swaziland.
(2012-10-02)The water quality of a river is influenced by the catchment’s characteristics. The Mbabane River sub- catchment in the eZulwini Valley, Swaziland has catchment activities which are potential sources of both point and non ... -
Impact of Land Use Change and Increased Agricultural Water Use on the Incomati River Flow Regime
(2012-09-18)The Incomati River basin has been experiencing a decrease in river flows since the 1970’s. At the same time its catchment area has undergone severe land use changes and increased water abstractions. Further water abstractions ... -
Modelling Multiple Reservoir Operation System for Optimum Productive Water Use in the Safari- Igava Irrigated Area in Marondera District in Zimbabwe
(2012-08-30)Zimbabwe undertook a land reform in 2000, where some large scale commercial farms were sub-divided into smaller plots and allocated to new farmers. Reservoirs owned and managed by farmer consortiums were taken over by a ... -
Assessment of the chemical quality of groundwater for drinking in Dedza
(2012-08-30)A lot of emphasis has been placed on the safety of drinking water from biological contamination with little consideration on the chemical quality although there are well known health risks associated with the consumption ... -
Pressure Management as a Tool for Reduction and Control of Real Water Losses for Kasungu Water Supply Scheme in Malawi
(2012-08-30)Research has shown that effective management of water resources for urban water utilities worldwide still remains a challenge. Pressure management is one of the tools that is known to control water leakages in piped water ... -
Land use changes between 1972 and 2008 and current water quality of wetlands in Harare, Zimbabwe.
(2012-08-30)Agriculture and other land use changes such as settlement adversely affect water levels and nutrient status hence influences wetlands ecosystems. To assess the impacts of land use changes in three selected urban wetlands ... -
Predicting hydrological droughts from a Standardized precipitation index (SPI) in South Phuthiatsana River basin, Lesotho
(2012-08-30)Droughts affect Lesotho in varying degrees every year leading to shortage of water, posing a threat to nature, quality of life and economy. Although hydrological droughts are defined by below long-term mean of annual ... -
Assessment of conjunctive use of small earth dams and boreholes for sustainable rural livelihoods in a semi-arid area: Case of Lilongwe West Rural Groundwater Project area, Malawi
(2012-08-30)Semi-arid Africa is well known for its unpredictable rainfall patterns, increased cases of drought and dry spells, high evaporative demands and increasing population which put pressure on water resources. Local experiences ... -
Impacts of agricultural activities on the diversity of aquatic macroinvertebrates as an indicator of ecosystem health along the Lower Komati River, Swaziland
(2012-08-30)At present, sugar cane production requires more land than any anthropogenic activity in the lower Komati catchment. Despite its threat to water quality, not much is known about the impact of the increased agricultural ... -
Partitioning of Unaccounted for Water for Zomba City Water Supply System in Malawi
(2012-08-30)Urban water supply utilities in developing countries are faced with challenges of low service coverage and high unaccounted for water (UFW). UFW reduces the water available to customers, and results in loss of revenue ... -
A Preliminary Assessment of the Wetland Biological Integrity in Relation to Land Use: A Case of the Intunjambili Wetland, Matobo District, Zimbabwe.
(2012-08-30)Research done in Zimbabwe on wetlands has tended to concentrate on hydrological aspects, agronomic practices, institutional arrangements, resource mapping, soil types, water quality and general conservation status. There ... -
An Assessment of Gender Mainstreaming in Water Resources Management: A Case Study of Mkoji Sub Catchment in Usangu Plains, Tanzania.
(2012-08-30)From the late 1980s onwards, the Gender and Development (GAD) approach was developed with the objective of removing disparities in social, economic, and political balances between women and men as a pre-condition for ... -
Local Participation in Transboundary Water Resources Management: The Case of Limpopo Basin, Zimbabwe
(2012-08-30)IWRM-led water reforms in southern Africa have emphasised the creation of new institutions with little explanation regarding how the institutions can effectively engage with stakeholders at different levels, especially ... -
The Impact of Sub-Catchment Activity on River Water Quality: A Case Study of Mbabane River in The Ezulwini Valley, Swaziland.
(2012-08-30)The water quality of a river is influenced by the catchment’s characteristics. The Mbabane River sub- catchment in the eZulwini Valley, Swaziland has catchment activities which are potential sources of both point and non ... -
The Internal Effective Stress-strain Behaviour of an Unsaturated Expansive soil.
(2012-08-29)Following a critical review of the conceptual and laboratory studies on expansive soil behaviour, it is shown that the current understanding of unsaturated expansive soil behaviour is not consistent. In the main, the ... -
The Impact of Rural Water Supply and Sanitation Programmes in Chivi District, Zimbabwe
(2012-07-31)The effectiveness of development activities in water and other sectors can be improved through a broad-based analysis of livelihoods and the factors that influence them, including the wider ‘vulnerability context’ in ...
