Essays about: "water environment"

Showing result 1 - 5 of 459 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 : Denize Åkerblom; Erik Göranzon; [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. Feasibility Study of Biogas Generation from Municipal Solid Waste and Sewerage within the Colombo City Limits

    University essay from KTH/Kraft- och värmeteknologi; KTH/Kraft- och värmeteknologi

    Author : Wilfred Mahes Rajaratne; Omalaka Danushka Panagoda Arachchige Kumara; [2014]
    Keywords : ;

    Abstract : Colombo City is the commercial capital of Sri Lanka with an estimated resident population of over 750,000 spread over 3741 hectares (ha) and has a population density over 1188 per ha. It is located in the western coast of Sri Lanka and is in wet zone. The topography is of flat terrain with a mix of land and water. READ MORE

  3. 3. Design of Edge Beams

    University essay from KTH/Bro- och stålbyggnad

    Author : Ezdin Duran; [2014]
    Keywords : Edge Beams;

    Abstract : The purpose of the edge beam is to support the railing and the pavement, function as part of the drainage system and in the case it is integrated into the bridge deck it can serve to distribute concentrated loads. It is located in road environment and therefore exposed to water and salt with chlorides as well as subject to impacts during accidents. READ MORE

  4. 4. Optimization and design of a detection system based on transmission tomography with fast neutrons

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Tom Bjelkenstedt; [2014]
    Keywords : Transmission tomography; fast neutrons; scintillator; detector;

    Abstract : This thesis is part of a project focusedon investigating the possibility ofmeasuring void distributions usingtransmission tomography with fastneutrons. The measurements are plannedto be conducted at thermal hydraulictest loops. The project, called STUNT,is carried out at Uppsala University atthe division for applied nuclearphysics. READ MORE

  5. 5. Thermal energy recovery of low grade waste heat in hydrogenation process

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Sofia Hedström; [2014]
    Keywords : Low-grade waste heat; Waste heat recovery; Organic Rankine Cycle; Absorption Refrigeration; Aspen Plus; Steady-state simulations; Modeling and design;

    Abstract : The waste heat recovery technologies have become very relevant since many industrial plants continuously reject large amounts of thermal energy during normal operation which contributes to the increase of the production costs and also impacts the environment.The simulation programs used in industrial engineering enable development and optimization of the operational processes in a cost-effective way. READ MORE