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34 results for “Water Retention”
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Research ArticleOpen accessIn the abstractDevelopmental Design of Anaerobic Wetland System for Mining Waste Water TreatmentMuhammad Aqeel Ashraf, Mohd. Jamil Maah, Ismail YusoffProblem statement: Tin mining is one of the oldest industries in Malaysia that have started since 1820s. These mining activities have resulted in about 13,700 hectors of tin tailings throughout the peninsula. These tailings have created numerous environmental problems such as threat to natural reserves due to landscape changes, damage to natural drainage, pollution and destruction of natural habitats. Approach: … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 10 Oct 2011 · 7,509 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Field Study of the Fates of Arsenal and Escort Applied on the Cumberland Plateau in TennesseeJohn Harwood, Rong JiangProblem statement: The low organic soils of the Cumberland Plateau, as well as the karst geology of the region, may promote increased transport of herbicides outside of application sites. We have studied the fates of imazapyr and metsulfuron-methyl applied to a privately owned tract on the Cumberland Plateau in Tennessee and compared the field results with herbicide fate predicted by … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 6,433 accessesView PDFCite
Research ArticleOpen accessIn the abstractVase Life Extension of Rose Cut Flowers (Rosa Hybirida) as Influenced by Silver Nitrate and Sucrose PulsingMohy Eldeen Nour Eldaim ElgimabiAbstract: Problem statement: This experiment was carried out in the laboratory of the Department of the Biology, Taif University, Saudi Arabia. Approach: The study was conducted to investigated the silver nitrate (AgNO3) and sucrose at different concentration on rose cut flowers longevity, which determined on the basis of wilting, chlorophyll retention and carbohydrate degradation .The treatments were, water control, 20, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 10 Mar 2011 · 11,323 accessesView PDFCite
Research ArticleOpen accessIn the abstractRenal Actions of Neutral Endopeptidase Inhibition in Rats with Chronic Heart FailureAmr M. Abbas, Ayman Z. Elsamanoudy, Adel ZalataProblem statement: We aim to evaluate the effects of acute and chronic inhibition of Neutral EndoPeptidase (NEP), by ONO-9902, on plasma and renal NEP gene expression, hemodynamic and renal parameters in rats with Chronic Heart Failure (CHF) following left Coronary Artery Ligation (CAL). Approach: Forty eight male Sprague-Dawley rats (220-240 g) were divided into sham and CAL groups. Myocardial infarction … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,087 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Modeling of Flow in a Horizontal Sand FilterRuth Mossad, Hal AralProblem statement: Horizontal sand filters may offer some advantage over vertical sand filters as they could be used for in-line treatment of wastewaters. Horizontal pipelines of tens and if not hundreds of meters length, filled with ordinary sand or permeable reactive media such as activated carbon or natural zeolite or iron filings, may be used to remove impurities from mine … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,502 accessesView PDFCite
Research ArticleOpen accessIn the abstractAerobic Biodegradation of Per-Treated Methyl Tert-Butyl Ether By Ozonation in an Up-Flow-Fixed-Bed ReactorM. Sadeghi, M. Arbabi, A. Nikpey, G. MardaniProblem Statement: MTBE is a common pollution of environmental and has become an issue of considerable concern in recent years. It is not readily amenable to remove MTBE by conventional techniques in water treatment. In the present study, the feasibility of the continuous aerobic biodegradation of MTBE, was evaluated in an Up- Flow Fixed Bed Reactor (UFBR). Approach: The UFBR … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,620 accessesView PDFCite
Research ArticleOpen accessIn the abstractWater Quality Assessment of A Constructed Wetland Treating Landfill Leachate and Industrial Park RunoffC. Galbrand, I. G. Lemieux, A. E. Ghaly et al.A surface flow constructed wetland was used for the treatment of landfill leachate and industrial park runoff. The wetland consisted of seven cells and was designed as a kidney shape to facilitate high retention time. The water quality was assessed for iron, manganese, phosphorus (orthophosphate), pH, dissolved oxygen (DO), nitrogen (ammonia, nitrate, nitrite and TKN), chemical oxygen demand (COD), total … …American Journal of Environmental Sciences, Vol. 4, Issue 2 · 30 Apr 2008 · 7,368 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Comparative Study of the Purification of Aquaculture Wastewater Using Water Hyacinth, Water Lettuce And Parrot’s FeatherA. M. Snow, A. E. GhalyWater hyacinth, water lettuce and parrot’s feather plants were examined for their ability to remove nutrients from aquaculture wastewater at two retention times. During the experiment, the aquatic plants grew rapidly and appeared healthy with green color. At hydraulic retention times (HRTs) of 6 and 12 days, the average water hyacinth, water lettuce and parrot’s feather yields were 83, 51 … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,858 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of Hydroponically Grown Macrophytes for Their Suitability as Fish FeedA. M. Snow, Abdel E. GhalyWater hyacinth, water lettuce and parrot's feather plants were examined for their ability to remove nutrients from aquaculture wastewater at two retention times. During the experiment, the aquatic plants grew rapidly in the hydroponics system and appeared healthy with green color. At hydraulic retention times (HRTs) of 6 and 12 days, the average water hyacinth, water lettuce and parrot's feather … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 1 · 31 Mar 2008 · 7,254 accessesView PDFCite
Research ArticleOpen accessIn the abstractUnconventional Approach for Demineralization of Deproteinized Crustacean Shells for Chitin ProductionN.S. Mahmoud, A.E. Ghaly, F. ArabChitin is a versatile environmentally friendly modern material. It has a wide range of applications in areas such as water treatment, pulp and paper, biomedical devices and therapies, cosmetics, membrane technology and biotechnology and food applications. Crustacean waste is the most important chitin source for commercial use. Demineralization is an important step in the chitin purification process from crustacean waste. … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 1 · 31 Mar 2007 · 8,799 accessesView PDFCite