13 results for “economic value added”

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Research ArticleOpen accessIn the abstractSynthesis of Zeolite from Aluminium Etching By-Product: the Effect of Reaction Temperature on Crystallinity and Its CO2 Adsorption PropertyKanokorn Hussaro, Supaporn Douglas, Noppadon CheamsawatThe synthesis of zeolite from the by-product of aluminium etching process was investigated. The starting by-product reactant had high aluminium content, 92.17% wt. as Al2O3. Si and Na compositions were adjusted by the addition of sodium metasilicate, in the hydrogel process.The reaction time was fixed at 1 h., while the stirring speed was controlled at 200 rpm. and the temperature … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,524 accessesView PDF Cite

Research ArticleOpen accessIn the abstractProduction, Yield and Derivatives of Volatile Oils from Eastern Redcedar (Juniperus Virginiana L.)Elif Semen, Salim HizirogluEastern redcedar (Juniperus virginiana L.) is one of the most widely distributed indigenous conifers in southern states including Oklahoma, Arkansas and Texas. Eastern redcedar is also an important source of the volatile oils. This specie adversely influences the environment resulting in degrading grassland, displacement of native plant population and increasing wildlife hazard. Range-grown eastern redcedar has a poor quality. However, … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,754 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordKhaen: An Application of Isan Local Wisdom for Conservation Revitalization and Development of Raw Materials and Khaen Making for Value-Added CultureChampadaeng Sithisak, Bunsom Yodmalee, Khaentaphon SamdaengdejProblem statement: The electricity in recent time, the raw materials for making “Khaen” (Lao reed mouthorgan) were decreased. The Reed Mouthorgan manufacturing was a high wisdom heritance. The objective of this research was to study the following issues: (1) the history of Reed Mouthorgan musical instrument, raw material and Reed Mouthorgan manufacturing in Esan Region. (2) The state of problems … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 7,686 accessesView PDF Cite