Essays about: "primary sludge"
Showing result 6 - 10 of 37 essays containing the words primary sludge.
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6. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge
University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)Abstract : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. READ MORE
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7. Evaluating the suitability of carbon source from fermentation of primary filter sludge for biological nutrient removal
University essay from Lunds universitet/Kemiteknik (CI)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
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8. Enhancement of hydrolysis from co-fermentation of food waste and primary sludge
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Research about resource recovery from complex waste streams is getting an increased scientific attention since valuable resources can be produced by sustainable biological means. In anaerobic degradation processes, resources such as volatile fatty acids (VFAs) and biogas are highly coveted. READ MORE
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9. Modelling control strategies for chemical phosphorus removal at Tivoli wastewater treatment plant
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Wastewater compose an environmental risk as it contains high levels of nutrients, including phosphorus. Wastewater treatment plants (WWTPs) reduce phosphorus by using coagulants that precipitate soluble phosphate into metal phosphate, which is separated by settling. READ MORE
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10. Thermophilic anaerobic digestion of municipal wastewater sludges: A pilot scale evaluation with model assistance
University essay from KTH/KemiteknikAbstract : I takt med att städerna växer ökar belastningen på de kommunala avloppsreningsverken. Käppalaförbundet förutspår att antalet anslutna personekvivalenter till Käppalaverket kommer att öka med över 160 % under de kommande tre decennierna. En ökad belastning leder till en större mängd slam som måste behandlas. READ MORE