Essays about: "water environment"

Showing result 1 - 5 of 430 essays containing the words water environment.

  1. 1. Greener Water Repellency? Feasible alternatives to fluoro chemicals for DWOR treatments on textiles

    University essay from Högskolan i Borås/Textilhögskolan (THS)

    Author : Nils-Krister Persson; [2014-03-28]
    Keywords : Water and oil repellent; treatments; water and oil repellency; DWR; DWOR; perfluorinated compounds; PFCs; perfluorooctanoic acid; PFOA; perfluorooctane sulfonates; PFOS; dendrimers; organic silicon; hydrocarbon; hydrocarbon; aliphatic polyurethane; textiles; outdoor clothing; performance; UV-radiation; Martindale; washing;

    Abstract : BACKGROUND: Perfluorinated compounds (PFCs) have been used as durable water and oil repellent treatments in clothing for more than 50 years. The reason for its popularity is related to the chemical structure, which also makes these compounds persistent in the environment. READ MORE

  2. 2. Possibilities of Geothermal Energy and its Competitiveness  with Other Energy Sources

    University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Author : Farhan Hasan; [2014]
    Keywords : Geothermal energy; Green energy; Fossil fuel; Greenhouse Gas;

    Abstract : Geothermal Energy is one of the common talks at present. It has the potential to run long term and can provide base-load energy, at the same time it helps to reduce the greenhouse gas emissions. It is found almost everywhere on earth. READ MORE

  3. 3. Automatic Control for a Gas System Using PIC Microcontroller

    University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Author : Ziyu Liu; [2014]
    Keywords : methane; PIC; automatic control;

    Abstract : In many processes it is important to have automatic control in the modern life. For example, PLC systems are using for machine control, water pressure and flow are able to be controlled by DDC program, even a car can be driven by computer. In this article, author will turn our focus on the control system for fermentation tank. READ MORE

  4. 4. Energy Audit of Mauritian Industries

    University essay from KTH/Kraft- och värmeteknologi

    Author : chandrasekar bootun; [2014]
    Keywords : ;

    Abstract : AbstractThree companies namely Esko & Co Ltd, Cuttings Work Ltd and The Message Ltd were targeted for the purpose of this project study.The first one is Esko & Co Ltd. The company has diversified its production activities to produce sweets, bubble gums, chocolates, wafers and noodles both for the local market and export purposes. READ MORE

  5. 5. Screening of endocrine disrupting compounds in Swedish rivers : with focus on organic flame retardants and perfluoroalkylated substances

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Erik Ribeli; [2014]
    Keywords : EDC; flame retardants; PFAS; PFAA; PFCA; PFSA; screening; rivers; surface water; grab samples; Sweden;

    Abstract : The occurrence of chemical contaminants in the environment is one of the key issues the world isfacing today. Special effort has been put on the screening of endocrine disrupting compounds(EDCs), substances that have been shown to have adverse effects on the endocrine system. READ MORE