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137 results for “CO2”
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Research ArticleOpen accessIn the abstractNew Low-Temperature Technology of Producing Calcium Feed Phosphate with MicroelementsJózef HoffmannThe possibility of producing feed calcium phosphates in a way ensuring a low physical water content in the product was investigated in laboratory conditions. For this purpose the process use of a phosphoric acid solution with a higher (than in conventional methods) P2O5 content (53-63% by wt. P2O5) with CaO (molar fraction of 0.5-0.8) and CaCO3 in the phosphoric acid … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 7,743 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Management Systems in Local Authorities: The Case Study of the Cesana Torinese Municipality, a Turin 2006 Olympic SiteSerena Botta, Claudio ComoglioEnvironmental certification according to the ISO 14001 standard and EMAS regulation represents an efficient tool for those organizations who want to continuously improve their environmental performances. Even though first thought up for application to the industrial section, in recent years these schemes have also proved to be valid in organizations with territorial competences, such as local authorities. The case study … …American Journal of Environmental Sciences, Vol. 3, Issue 3 · 30 Sep 2007 · 7,263 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermodynamic Profile of Some Heavy Metal Ions Adsorption Onto Biomaterial SurfacesMedhat A. ShakerThe adsorption of Co2+, Zn2+, Pb2+ and Hg2+ onto dried non-living biomass (NB) of different Pseudomonas strains has been investigated in detail. Maximum adsorption of these cations is achieved at optimum pH values from 3.5 to 4.5 to avoid hydrolysis, polymerization and precipitation of metal cations in the treatment solutions. The experimental data obtained at different temperatures were fitted to … …American Journal of Applied Sciences, Vol. 4, Issue 8 · 31 Aug 2007 · 6,881 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigation of Lignite and Firewood Co-combustion in a Furnace for Tobacco Curing ApplicationNakorn Tippayawong, Chutchawan Tantakitti, Satis ThavornunCo-combustion of lignite and firewood was investigated for an application in tobacco curing industry in Northern Thailand. Extensive experiments have been carried out in a newly developed furnace suitable for small curing unit, in place of locally made furnace. The aim of this investigation is to evaluate the performance of the combustion chamber in the required thermal output range for … …American Journal of Applied Sciences, Vol. 3, Issue 3 · 31 Mar 2006 · 6,905 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermodynamic Analysis of an Absorption/Compression Refrigeration System Using Geothermal EnergyL. Kairouani, E. NehdiThis article presents the potential use and exploration of geothermal energy for cooling applications using a combined absorption/compression system. The considered system uses R134a for the compression part and the cool water-ammonia for the absorption part of the installation. The geothermal temperature source is in the range 343-349K, the condensation temperature is 308 K, and in order to produce ice, … …American Journal of Applied Sciences, Vol. 2, Issue 5 · 31 May 2005 · 7,559 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of Carbon Tax on Agricultural Output, Employment, and Rural Income in Indonesia: Insights from an Energy Input-Output ModelSyahrituah Siregar, Luthfy Fatah, M. Handry Imansyah, SunardiThe agricultural sector in Indonesia is crucial for the national economy, contributing significantly to Gross Domestic Product (GDP) and sustaining the livelihoods of millions in rural areas. In light of increasing global environmental concerns, this study examines the potential impacts of a proposed carbon tax on agricultural production, employment, and rural household income in Indonesia. Utilizing the Miyazawa energy input-output … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 12 Jun 2025 · 3,398 accessesView PDFCite
Research ArticleOpen accessIn the abstractPetrochemical Supply Chain’s Share in Emission of Green House Gases, Case Study: Shazand Petrochemical ComplexNaser Moharamned, Masoud Aghajani, Faride Atabi, Sahar AzarkamandIn this study petrochemical supply chain shares in global warming is studied by monitoring carbon footprint during manufacturing and distribution phase. For identification and measurement of carbon emissions in petrochemical supply chain, at first step necessary data are collected. Then carbon footprint is calculated in manufacturing process. So GHG is measured during fossil fuel use for chemical productions and electricity … …American Journal of Environmental Sciences, Vol. 9, Issue 4 · 28 Aug 2013 · 7,034 accessesView PDFCite