HEADWATER STREAMS AND VALUES OF BIO-ASSESSMENT FOR SUSTAINABLE RIVER MANAGEMENT IN HIGHLANDS OF ETHIOPIA

Abstract Headwater streams are important component of riverine ecosystem comprising the majority of the catchment area. These streams are densely networked in the highlands of Ethiopian river basins. Organic and inorganic materials and invertebrates are transported from the headwater streams and they have potential effect on downstream river habitat, water quality and living organisms. In […]

PHYSICOCHEMICAL AND MICROBIAL EVALUATIONS OF DIFFERENT FISH PONDS’ WASTEWATERS AND THE ANTIBIOTICS PROFILES OF ISOLATED BACTERIA

Abstract Aquaculture is a global practice that entails the breeding of different fish species. It is incessant in the Nigerian community as wastewater released from pond farms into surrounding drainages and water bodies cause pollution. In this study, a comparative analysis of the physico-chemical parameters (temperature, pH, salinity, conductivity, Dissolved Oxygen (DO) and Biological Oxygen […]

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 […]