Sökning: "Filtration efficiency"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden Filtration efficiency.

  1. 1. Dispersion of cement-based grout with ultrasound and conventional laboratory dissolvers

    Master-uppsats, KTH/Byggvetenskap

    Författare :Antranik Karamanoukian; [2020]
    Nyckelord :ultrafine cement grout; microfine cement grout; dispersion; additives; ultrasound dissolver; laboratory dissolver; ultrafint cementbruk; mikrofin cementbruk; dispergering; tillsatser; ultraljud apparat; laboratorieblandaren;

    Sammanfattning : In any underground facilities especially tunnels, it is essential to seal the area against water ingress and leakage of reserved materials. Grouting is a common method used to seal rocks around tunnels, successful grouting reduces the duration and cost of the construction, guarantees better working environment and higher safety, minimizes the maintenance and most important decreases the corresponding environmental hazards significantly. LÄS MER

  2. 2. Method Development for Evaluating Pitch Dispersing Agents Used in the Kraft Pulping Process

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Emma Olsson Månsson; [2020]
    Nyckelord :pitch deposit; dispersing agent evaluation; method development; calcium soaps;

    Sammanfattning : Depending on wood species and the extractives of the wood, the paper and pulp processes might suffer from problems caused by the formation of pitch deposits from calcium soaps. BIM Kemi is a specialty chemical producer supplying the pulp and paper industry with dispersing agents, which prevent these problems. LÄS MER

  3. 3. Assessment of on-site wastewater treatment systems in unsewered communities in Jordan

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Hani Yahya Ali Shubail; [2020]
    Nyckelord :Constructed wetland; Decentralized wastewater treatment; Jordan; On-site wastewater treatment system;

    Sammanfattning : Centralized wastewater treatment systems need substantial funds besides high-cost operation and maintenance programs, which could be considered unsuitable for low-income developing countries. As a solution, it becomes the trend towards on-site wastewater treatment systems (OWTs) due to its cost-effectiveness and flexibility of implementation and management. LÄS MER

  4. 4. An Investigation of Market Scalability for Volatile Organic Compounds (VOCs') Filtration Systems : A Case Study within Sweden

    Master-uppsats, Uppsala universitet/Industriell teknik; Uppsala universitet/Industriell teknik

    Författare :Chaitanya Sai Praneeth Kurukundu; Anvesh Reddy Gajjala; [2020]
    Nyckelord :Volatile Organic Compounds; Formaldehyde; Activated carbon; Thermal sintering; Impregnated catalyst; Efficiency; Indoor Air Quality; Filtration Systems;

    Sammanfattning : With the need for excellent living standards to escalate day by day, the need to breathe good quality air remains of paramount importance for a prosperous, happy life. The indoor air quality picture is improving decade by decade. However, the importance of maintaining good indoor air quality remains unsatisfactory. LÄS MER

  5. 5. Flow pattern analysis of a Surface Flow Constructed Wetland : Treating surface runoff and landfill leachate water from the Löt waste management site

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Max-Bernhard Alm; [2020]
    Nyckelord :Surface flow constructed wetland; flow pattern analysis; numerical model;

    Sammanfattning : The waste management and recycling company, Söderhalls Renhållningsverk (SÖRAB) have constructed a surface flow wetland in order to treat surface runoff from the waste management site, Löt. The contaminated water passes several treatment steps until it reaches the wetland and a subsequent soil infiltration step. LÄS MER