ASSESSMENT ON THE PERFORMANCE OF WASTEWATER TREATMENT PLANTS AND THEIR IMPACT ON THE SURFACE WATER QUALITY OF AWASH RIVER, ETHIOPIA

Abstract The Awash River, (AR) is used for different purposes such as drinking, industrial supply, hydropower, and agriculture. These uses of the water have resulted in the rapid deterioration of water quality. The performance of wastewater treatment plants (WWTPs) situated with the river catchment area have been assessed together with the impact on the surface […]

PHYSICO-CHEMICAL AND BACTERIOLOGICAL QUALITY OF THE MEKHADA MARSH WATERS IN NORTH-EAST OF ALGERIA

Abstract Water is an essential part of biological life. Maintaining its quality is a major concern for a society that needs to meet ever-increasing water needs. Algeria, which has a strategic position and counts no less than 254 wetlands, 42 of which are classified internationally for their importance and the role they play; These wetlands […]

SEASONAL VARIABILITY OF GROUND WATER QUALITY IN HAWELLA TULLA, HAWASSA

Abstract The urban development in line with a population of mixed socio-economic status and intensive agriculture practice pollutes the water resource in developing countries. Water quality is vital determinant of availability because water that is not fit for use is in effect unavailable. It is clear, that decision-makers require scientifically sound information with which to […]

ASSESSMENT OF ARSENIC CONTAMINATION OF UNDERGROUND WATER RESOURCES IN ASA LOCAL GOVERNMENT AREA OF KWARA STATE, NIGERIA

Abstract The study assessed arsenic contamination of underground water resources in Asa Local Government Area of Kwara State. The specific objectives included: (i) determination of the level of arsenic in underground water resource; (ii) comparison of the laboratory result with WHO standard; (iii) examining the variation of arsenic level in underground water resource and soil […]

SPATIAL CHARACTERIZATION OF GROUNDWATER QUALITY AS INFLUENCED BY WASTE DUMPS IN IBADAN METROPOLIS USING GIS MAPPING

Abstract Inefficient management of landfills and dumpsites for waste disposal is a major problem in Nigeria. Leachates and pollutants from these dumpsites have been known to contribute to the pollution of groundwater systems.  The extents of pollution however are poorly quantified since the flow of pollutants continues below earth surface. The use of GIS mapping […]

HYDROCHEMICAL, MICROBIOLOGICAL AND BIOCHEMICAL ASSESSMENTS OF GROUNDWATER QUALITY IN SOME PARTS OF LAGOS METROPOLIS, SOUTHWESTERN NIGERIA

Abstract The hydrochemical, microbiological and biochemical assessments of groundwater samples were carried out in some parts of Lagos metropolis, Nigeria, with a view to evaluating the quality of the water of the area. Twenty groundwater samples, at least one from each grid of a gridded map were collected from wells generally below 35 m. Physical […]

CHARACTERIZATION OF ANTHROPOGENIC ACTIVITIES INFLUENCING SURFACE WATER QUALITY ALONG MOLO RIVER ECOLOGICAL SYSTEM, KENYA

Abstract Surface water is progressively subjected to stress as a result of anthropogenic activities. Systematic observation and characterization of anthropogenic activities along Molo River was done in 2014 to evaluate their effects on surface water quality. Portable GPS receiver was used to identify geographic locations of 23 sites purposively selected; based on their relative positions […]