Essays about: "Fosforavskiljning"

Found 5 essays containing the word Fosforavskiljning.

1. 1. Evaluating the suitability of carbon source from fermentation of primary filter sludge for biological nutrient removal

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Sanna Sahlin; [2021]
   Keywords : Wastewater treatment; batch activity tests; NUR tests; anaerobic P release tests; EBPR; denitrification; removal rates; internal carbon source; fermentate; water and environmental engineering; Technology and Engineering;

   Abstract : Traditional biological nutrient removal (BNR) processes in wastewater treatment require access to easily biodegradable carbon in order to achieve sufficient removal. However, a lot of the carbon in the influent wastewater is not directly available for BNR bacteria but need to undergo hydrolysis first. READ MORE

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

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Rounak Niranjan; [2021]
   Keywords : 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;

   Abstract : 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. READ MORE

4. 3. Phosphorus accumulation in constructed wetlands : A study of 10 wetlands constructed on agricultural clay soils in Södermanland

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Gabriella Corbee; [2021]
   Keywords : Phosphorus retention; sedimentation; hydraulic load; Fosforavskiljning; sedimentation; hydraulisk belastning;

   Abstract : Eutrophication is a major problem causing algal blooms and impaired water quality, especially regarding coastal areas and seas. It is a result of an excessive supply of nutrients such as phosphorus (P), where agriculture accounts for the largest share of the anthropogenic nutrient load. READ MORE

5. 4. Material Flow Analysis of Phosphorous and Organic Matter in Domestic Wastewater and Food Waste in Sông Công Town, Vietnam

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

   Author : Olli Sammalisto; Zanna Sefane; [2015]
   Keywords : ;

   Abstract : Vietnam’s fast economic growth has to a large extent been achieved on the expense of a rapid deterioration of the natural environment, including eutrophication of local water sources. Proper planning is needed to move towards a sustainable wastewater management and one recognized tool for such planning is material flow analysis (MFA). READ MORE

6. 5. Hydrauliken i Ångersjöns fosforfällor : bestämning av flödesvägar och åtgärdsförslag för optimal fosforbindning vid avloppsrening med reaktiva filter

   University essay from SLU/Dept. of Soil and Environment

   Author : Ellinor Jansson; [2008]
   Keywords : fosforrening; Ångersjön; filtermaterial;

   Abstract : Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater treatment from scattered households with unsatisfactory purification. READ MORE