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75 results for “organic material”
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Research ArticleOpen accessEvery word in the titleAdsorption Study of Several Hydrophobic Organic Contaminants on an Aquifer MaterialBarbara Ruffino, Mariachiara ZanettiProblem statement: Aim of the present research was to determine coefficient of partition KD between soil and groundwater for five hydrophobic organic pollutants (benzene, chlorobenzene, trichloroethylene-TCE, perchloroethylene-PCE and toluene) in an Italian aquifer material characterized by a low organic carbon content (fOC = 0.00262) by means of laboratory batch tests. Initial aqueous concentrations (quite different among the five compounds) were … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Aug 2009 · 7,368 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePreparation and Characterization of Hybrid Organic-Inorganic Composite Material: Polymerization of m-Aminobenzoic Acid-Intercalated Into Zn/Al-Layered Double HydroxidesRasheed M.A.Q. JamhourLayered double hydroxides of aluminum and zinc (Zn/Al-LDH’s) were synthesized directly by hydrolysis at room temperature as reported elsewhere. After characterization, the material was reacted with m-aminobenzoat anion (m-NH2C6H4COO-) which undergoes polymerization in the interlayer space; resulting in the formation of a matrix with polymeric organic macromolecule. The resulting material along with the host LDH’s compound of Zn/Al-Cl was characterized … …American Journal of Applied Sciences, Vol. 2, Issue 6 · 30 Jun 2005 · 6,588 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPhysical Composition, Nutrients and Contaminants of Typical Waste Dumping SitesH. Meuser, K. S. Grewal, R. Anlauf et al.Problem statement: The composition of wastes is quite variable depending upon the generating source and mode of collection. Most of the material from the domestic activities will be organic in nature and contains essential plant nutrients, whereas the dumping material of commercial and industrial wastes usually contains appreciable amounts of heavy and potentially toxic metals and organic pollutants. Approach: Objective … …American Journal of Environmental Sciences, Vol. 7, Issue 1 · 28 Feb 2011 · 7,761 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSoil Formation by Ecological Factors: Critical ReviewSaeed Zeraat Kar, Aydin BerenjianRegolith is the term we give parent material that has been weathered. The regolith consists of weathered bedrock near the surface including the soil layer. In the Iranian soil layer we will find: decayed parent materials, decaying plant material, decaying animal matter (manure) along with vegetation. Results of the present study show us that methods stimulating natural fertility in Iran … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 2 · 2 Apr 2013 · 7,666 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTotal Petroleum Hydrocarbons By Gas Chromatography in Colombian Waters and SoilsC.. González, S. Roa, A. Suspes et al.Total Petroleum Hydrocarbons (TPHs) were required by the Colombian Environmental Authorities. However, the great diversity of hydrocarbon sources, in addition to the variety of available techniques and analytical methods had created confusion among the users of the data in regards to the appropriate methodologies. This study presents the results obtained in the method validation for the determination of TPHs in … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 20 Jun 2012 · 9,218 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Expert System Applied in Construction Water Quality MonitoringLeila Ooshaksaraie, Noor Ezlin Ahmad BasriProblem statement: An untoward environmental impact of urban growth in Malaysia has been deterioration in a number of watercourses due to severe siltation and other pollutants from the construction site. Water quality monitoring is a plan for decision makers to take into account the adverse impacts of construction activities on the receiving water bodies. It is also a process for … …American Journal of Environmental Sciences, Vol. 7, Issue 1 · 28 Feb 2011 · 7,724 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPrevalence Study of Etiologies of Developmental Defects of Enamel of First Permanent Molar among Six to Seven Years Old ChildrenF. Farrokh Gisoo, A. MohseniProblem statement: The final product of amelogensis which generates in three subsequent phases is dental enamel. These Phases are divided into: excretory, calcification and maturation stage of enamel. While these specific complex events, are affected by specific agents, the act of amelogenic cells will be disturbed and hence the results of this process is improper and imperfect enamel production which … …Current Research in Dentistry, Vol. 1, Issue 2 · 16 Jul 2011 · 7,623 accessesView PDFCite
Research ArticleOpen accessIn the keywordsUsing Orthosiphon stamineus B. for Phytoremediation of Heavy Metals in Soils Amended with Sewage SludgeArifin Abdu, Najihah Aderis, Hazandy Abdul-Hamid et al.Problem statement: Phytoremediation is a biological treatment where plants are used to remove pollutants from the environment to make them harmless. A study was conducted in a greenhouse at the Faculty of Forestry, Universiti Putra Malaysia on the potential of Orthosiphon stamineus B. planted in sewage sludge for heavy metals uptake. The objective of this study was to evaluate the … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 8,773 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of NPK Fertilizer Content Derived from Wild Plant DiversityKhosi'in, Nur Hidayat, Zulfikri Muhammad, Endang HaryantoThis research has the background of understanding the diversity of wild plants that can produce organic NPK fertilizer that can be utilized by the community. The purpose of this research is to produce NPK fertilizer from wild plants and to determine the nitrogen, phosphate, and potassium content in the organic fertilizer derived from wild plants. The type of this research … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 20 Jun 2025 · 4,229 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimum Fertilization Technology to Improve Crop Productivity of Stevia (Stevia rebaudiana Bertoni)Mohammad Cholid, Sesanti Basuki, Budi Hariyono et al.Stevia leaves have the potential to be developed as a natural sweetener, a companion to cane sugar, especially for those who need low-calorie intake. Increasing the productivity of stevia plants is approached by increasing plant biomass accumulation through balanced nitrogen fertilization. This research aims to obtain optimal nitrogen fertilization in the cultivation of stevia plants in which the nitrogen derived … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 22 Nov 2024 · 5,116 accessesView PDFCite