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202 articles for “Surface Water”

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Research ArticleOpen accessIn the abstractToxicity of Industrial Wastewater Acting Singly or in Joint-Ratios on Clarias gariepinusAina Olubukola Adeogun, Azubuike Victor ChukwukaFreshwater ecosystems were the most vulnerable to pollution due to their easy accessibility for disposal of wastewaters leading to deterioration of water quality. Ona river, Ibadan, Nigeria is part of a dense network of inland watercourses emptying into the Lagos lagoon and receives industrial effluents from a food and beverage industry. The single and joint-action toxicity of effluents from these … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 18 Jun 2012 · 7,028 accessesView PDFCite
Research ArticleOpen accessIn the abstractHistorical Changes in Polychlorinated Biphenyls Contaminated SedimentsViet D. Dang, David M. Walters, Cindy M. LeeProblem statement: PCBs contamination continues to pose a health risk to aquatic environments due to their recalcitrance and bioaccumulation. The Sangamo Weston/Twelvemile Creek/Lake Hartwell Superfund Site is an example of such a health risk as a result of PCBs discharged from a former capacitor manufacturing plant. We conducted a study in twelvemile creek (Clemson, SC, USA) to examine the temporal … …American Journal of Environmental Sciences, Vol. 8, Issue 1 · 25 Jan 2012 · 7,086 accessesView PDFCite
Research ArticleOpen accessIn the abstractLab-on-Chip Methodology in the Energy Industry: Wettability Patterns and Their Impact on Fluid Displacement in Oil Reservoir ModelsMarc H. Schneider, Patrick TabelingProblem statement: We present an experimental study of multiphase transport in porous media with controlled wettability patterns based on lab-on-chip methodology. Approach: Fractional, or patterned, wettability is known to have an enormous impact in the petroleum industry on oil recovery and continuous efforts are being made to assess the role of such conditions. Results: Thus far, due to the absence … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 20 Aug 2011 · 7,885 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhysicochemical and Microbial Caracteristics Performency in Wastewater Treated Under Aerobic ReactorAsma Ben Rajeb, Hamadi Kallali, Neila Saidi et al.Problem statement: The current work study the efficiency of biological wastewater treatment by an aerobic reactor which could be used in small agglomerations. RBC reduced physicochemical and microbiological load of wastewater but values remain above Tunisian standard. Approach: Experiments were conducted on a sand filled PVC column fed with wastewater treated by Rotating Biological Contactor (RBC) at a pulsed rhythm … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 6,681 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacteristic Study of the Marine Algae Sargassum sp. on Metal AdsorptionA. Saravanan, V. Brindha, Soundarajan KrishnanProblem statement: Biomass of brown marine macro algae is a biological resource that is available in large quantities and can form a good base for the development of biosorbent material. Approach: Algae have been found to be potentially suitable biosorbents because of its cheap availability, both in fresh or salt water, relatively high surface area and high binding affinity. Results: … …American Journal of Applied Sciences, Vol. 8, Issue 7 · 24 Jun 2011 · 7,666 accessesView PDFCite
Research ArticleOpen accessIn the abstractFactors Affecting the Oxygenation Capacity of Disc Aerators in an Oxidation Ditch SystemAbdel Ghaly, Skai EdwardsProblem statement: The use of aerobic biological methods for the treatment of livestock wastes has resulted in a proliferation of mechanical aeration devices to accomplish the desired treatment. The oxidation ditch system with disc aerators is among the aerobic systems that have been used to treat livestock waste. The main objectives of this study were to investigate the effects of … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 7,539 accessesView PDFCite
Research ArticleOpen accessIn the abstractRadiometric Correction of Multitemporal Satellite ImagerySeema Gore Biday, Udhav BhosleProblem statement: Repeated observation of a given area over time yields potential for many forms of change detection analysis. These repeated observations are confounded in terms of radiometric consistency due to changes in sensor calibration over time, differences in illumination, observation angles and variation in atmospheric effects. Also major problem with satellite images is that regions below clouds are not … …Journal of Computer Science, Vol. 6, Issue 9 · 30 Sep 2010 · 8,399 accessesView PDFCite
Research ArticleOpen accessIn the abstractRadiographic Evaluations of the Tetra-Calcium Phosphate and Diacalcium Phosphate with Bone Plate in Osseo-Integration of Bone Repair in RabbitDavood Sharifi, Sarang Soroori, Saeed Hasaraki, Nazanin JafariProblem statement: To determine the effect of the Tetra calcium phosphate and Diacalcium phosphate cement in comparison with bone plate in fracture repair in rabbit. Experimental in vivo study. A total of 18 adult male White New Zealand rabbits, weighing 3.0±0.250 Kg and about 6 months old were used. They were fasted 4 h before start of experiment and were … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 7,232 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimizing of Trichoderma viride Cultivation in Submerged State FermentationHayyan Ismaeil Al-Taweil, Mohammad Bin Osman, Aidil Abdul Hamid, Wan Mohtar Wan YussofProblems statement: A study in Malaysia had shown a strain of Trichoderma viride was isolated from the soil. Questions were raised whether Trichoderma viride submerged state fermentation affected by parameters and which of them is effective? Approach: To investigate the effects of the submerged state fermentation parameters; concentrations of carbon g L-1; (10, 45 and 80), glucose, nitrogen g L-1; … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 10,086 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnhancing the Urea-N Use Efficiency in Maize (Zea mays) Cultivation on Acid Soils using Urea Amended with Zeolite and TSPOsumanu Haruna Ahmed, Aminuddin Hussin, Husni Mohd Hanif Ahmad et al.Problem Statement: Ammonia loss significantly reduces urea-N use efficiency in crop production. Efforts to reduce ammonia loss are laboratory oriented, as such limited in reflecting actual field conditions. This paper reports the effects of urea amended with triple superphosphate (TSP) and zeolite (Clinoptilolite) on soil pH, soil nitrate, soil exchangeable ammonium, dry matter production, N uptake, fresh cob production and … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 8,878 accessesView PDFCite