Essays about: "UV pretreatment"

Found 4 essays containing the words UV pretreatment.

  1. 1. Adhesive Performance of UV-cured Clearcoat on Galvanized Steel

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Khanh Trinh; [2019]
    Keywords : galvanized steel; UV-cured coatings; adhesion; UV-lack; galvaniserat stål; ytbehandling; vidhäftning; egenskaper;

    Abstract : A study has been carried out regarding the possibility for application of UV-cured coatings on different pretreated galvanized steel, in coil coating application. In order to address the questions about whether the adhesion will be affected and how, when combining respective coating with a steel substrate. READ MORE

  3. 2. Removal of hydrogen sulfide from an air stream using UV light

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Lorenza Gilardi; [2016]
    Keywords : VOC; sulfur removal; ozone; adsorbent bed;

    Abstract : Volatile sulfur compounds are cause of concern because, when present in high concentrations, they constitute a danger for health because of their strong toxicity. Furthermore, for low concentrations, they are often a cause of complaint, because of their low odor threshold. READ MORE

  4. 3. UV pretreatment of Alkaline Bleaching Wastewater from a Kraft Pulp and Paper Mill prior to Anaerobic Digestion in a Lab scale UASB Reactor

    University essay from Tema vatten i natur och samhälle; Filosofiska fakulteten

    Author : Marielle Karlsson; [2013]
    Keywords : Anaerobic digestion; biogas; UV pretreatment; UV H2O2; UASB; EOP wastewater; lignin; kraft pulp and paper mill;

    Abstract : The effects of UV pretreatment on alkaline bleaching (EOP) wastewater from a kraft pulp and paper mill were investigated prior to anaerobic digestion (AD) in an upflow anaerobic sludge blanket (UASB) reactor. The aim was to enhance the methane production, increase the reduction of total organic carbon (TOC) and determine the best UV exposure time. READ MORE

  5. 4. Using Ultrasound as a Pretreatment Method for Ultraviolet Disinfection of Wastewaters

    University essay from Högskolan i Borås/Institutionen Ingenjörshögskolan

    Author : Shaghayegh Armioun; [2011]
    Keywords : wastewater treatment; uv disinfection; ultrasound; ultraviolet; sonication; kaolin; breakage of wastewater flocs;

    Abstract : In this study, the effects of neutral particles addition on the breakage of wastewater flocs toimprove the efficiency of sonication pretreatment for UV disinfection process have been studied.Kaolin particles as a potentially useful material that is neutral, natural and cheap were added towastewater samples prior to sonication. READ MORE