Our Use of Metals 1. Define the terms mineral and ore Mineral - Any homogeneous‚ inorganic‚ solid substance which is naturally occurring. Ore - Any mineral or combination of a mineral and other substances from which a valuable‚ useable substance can be obtained (usually metals). 2. Describe the extraction processes‚ including chemical equations‚ of copper and aluminium and describe the environmental impact of these extraction processes. Copper There are two main methods used to extract
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Table of Contents 1. Introduction 1 2. LITERATURE REVIEW 3 2.1 BIOFUELS 3 2.2 Bio-Oil Production 3 2.2.1 Bio-Oils production by Fast Pyrolysis 4 2.2.2 Bio-Oils by Liquefaction of bio-mass 6 2.3 Vegetable oil 7 2.4 Drawback of bio oil 9 2.4.1 Hydrodeoxygenation 9 2.4.2 Catalytic cracking 10 2.5 Mechanism of Catalytic Cracking 11 2.6 Kinetic and modeling for catalytic cracking 14 3. Characterization and Analysis techniques 15 3.1 catalyst characterization methods 15 3
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important in bioremediation such as degrade toluene and in the application to biotechnology. Pseudomonas putida plays an important role in degradation of pollutants in environment. It has the ability to produce Poly-3-hydroxyalkanoates (PHA) from aromatic hydrocarbon styrene‚ which is a major environment toxic pollutant produced from industries and is known causes spinal tract irritation‚ muscle weakness and narcosis in human and mammals. The PHA produced by Pseudomonas putida important in medical applications
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INTRODUCTION Background of the Study Most adhesives contain chemicals which can be harmful to the environment. Furthermore‚ production of adhesives containing various chemical components continuously adds up to problematic atmospheric pollution. The prices of commercially available synthetic adhesives continuously increase. Pili nut‚ a product of a Pili tree‚ is a versatile nut used for a variety of products such as pili nut brittle‚ pili cake‚ roasted pili and many other Filipino delicacies
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Phenol‚ also known as carbolic acid‚ is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (-C6H5) bonded to a hydroxyl group (-OH). It is mildly acidic‚ but requires careful handling due to its propensity to cause chemical burns. Phenol was first extracted from coal tar‚ but today is produced on a large scale (about 7 billion kg/year) from petroleum. It is an important industrial commodity as a
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Amines and Amides Amine - an ammonia molecule (NH3) in which one or more H atoms are substituted by an alkyl or aromatic group. Amide - an organic compound with a carbonyl functional group (C=O) bonded to a nitrogen atom. Amines are the smaller and simpler products of the decomposition of larger and more complex organic compounds like proteins. They often have foul odours‚ as do many nitrogen compounds‚ such as the smell of rotting fish and decomposing animal tissue and are produced by
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Contaminant Hydrogeology ENEN90030 CONTAMINATION REMIDIATION LECTURE - 7 Dr. Meenakshi Arora Groundwater contamination • Groundwater Contaminants - Organic contaminants - Inorganic contaminants - Radio nuclides • Contaminant Transport - Conservative - Non-conservative (Retardation and Decay) • Site Remediation - Source Control - Pump and Treat - Sorption - Membrane Treatment - In situ Bioremediation‚ NAPL Recovery - Permeable Reactive Barrier - Contaminated Land Cleanup Dr. Meenakshi Arora
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Megyn McCaustland Environmental Science Final Project 5 December 2012 Environmental Science – Final Project Environmental Science has been an interest of mine since high school. I originally planned on studying environmental science upon graduation‚ but my life took a different turn when I went straight into the workforce and actually ended up in the construction industry. However‚ I chose this course in the hopes that not only would I fulfill my science credits‚ but I would take something
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for highly paraffinic gas oil feedstock cuts. The total hydrogen consumption is in the range of 700-900 scf/b of feed‚ depending on sulfur‚ aromatics‚ and olefins content of the feedstock. The technology is licensed by HaldorTopsoe and has been recently demonstrated by San Joaquin Refining in Bakersfield California‚ where a 3‚000 bpsd aromatic saturation unit is in operation.Is
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used to waste water. They can’t dump it in the Athabasca River because it would cause major pollution problems. It would take centuries to dry out the toxic chemicals contained in these ponds. Such as naphthenic acid and polycrylic aromatic hydrocarbons (PAH). They are required to reclaim it somehow‚ but have been missing their deadlines and still have not reclaimed a single room. The Alberta government claims that the river is not being contaminated‚ but it is inconceivable that that much
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