Sökning: "organic loading rate"

Visar resultat 1 - 5 av 35 uppsatser innehållade orden organic loading rate.

  1. 1. High-loaded thermophilic anaerobic digestion of mixed sewage sludge : A pilot study

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Santiago Elejalde Bolaños; [2022]
    Nyckelord :thermophilic anaerobic digestion; volatile fatty acids; mixed sludge; organic loading rate; alkalinity; wastewater treatment plant; termofil rötning; flyktiga fettsyror; blandslam; organisk belastning; alkalinitet; avloppsreningsverk;

    Sammanfattning : Municipal wastewater treatment plants (WWTP) are important infrastructural components in a society and also important for sustainability. In a WWTP the most common treatment configuration is mechanical, biological, and chemical treatment of the wastewater. LÄS MER

  2. 2. Comparison of Different Wood Types for Use as a Porous Substrate in Denitrifying Woodchip Bioreactors

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Erica Erikson; [2021]
    Nyckelord :denitrification; woodchip bioreactor; column experiments; denitrifikation; träflis-bioreaktor; kolonnexperiment;

    Sammanfattning : Explosives used in the mining industry release nitrate into the environment, causing concerns for the water quality in local river-systems. One way of reducing the nitrate loading into the environment is through a woodchip bioreactor. LÄS MER

  3. 3. Identifying factors that correlate with Enhanced Biological Phosphorus Removal upsets at Lundåkraverket

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

    Författare :Rounak Niranjan; [2021]
    Nyckelord :Enhanced biological phosphorus removal; polyphosphate accumulating organisms; glycogen accumulating organisms; sludge content in aeration basin; nitrates in aeration basin; pH of incoming water; principal component analysis; pairwise correlations; inhibition factors;

    Sammanfattning : The Enhanced Biological Phosphorus Removal (EBPR) process is characterized as the most sustainable process to remove phosphorus from wastewater albeit with high variability in performance efficiency. Thus, unpredictable upsets in the EBPR system is the norm across several wastewater treatment plants throughout Sweden, forcing the hand of the operators to dose higher volume of chemicals to reach the effluent requirements. LÄS MER

  4. 4. Comparison of mesophilic and thermophilic anaerobic sludge digestion at Hammarby Sjöstadsverk MBR pilot plant for wastewater treatment

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Jessica Sellin; [2021]
    Nyckelord :Anaerobic digestion; sludge; wastewater treatment; thermophilic; mesophilic; stress test;

    Sammanfattning : Anaerobic digestion is a commonly used method for stabilisation of sewage sludge and production of biogas at municipal wastewater treatment plants (WWTPs). The hydraulic retention time for sludge in the digestion reactors is about 16 days at Henriksdal WWTP in Stockholm. LÄS MER

  5. 5. Spruce Forests and Peat Wetlands in Lake Bolmen’s Catchment Both Leak and Degrade Coloured Dissolved Organic Carbon

    Magister-uppsats, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Jasmin Borgert; [2021]
    Nyckelord :Brownification; land use; DOC; iron; water colour;

    Sammanfattning : Lake browning in the northern hemisphere is endangering crucial ecosystem services. Darker water decreases fish and primary production as well as touristic and recreational values. It furthermore requires intensive treatment to receive safe drinking water. Brownification is connected to iron and coloured dissolved organic carbon (DOC). LÄS MER