Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Total nitrogen removal"”.
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Mathematical Modeling for Nitrogen Removal via a Nitritation: Anaerobic Ammonium Oxidation-Coupled Biofilm in a Hollow Fiber Membrane Bioreactor and a Rotating Biological Contactor
… flux affected reactor performance by improving nitrogen removal and reducing start up time. For the nitritation: anammox-coupled biofilm in an RBC, four different process options were investigated: the number of reactors, the initial anammox (AnAOB) biomass fraction, the bulk oxygen …
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Effect of the COD:TKN ratio and mean cell residence time on nitrogen removal in the completely mixed activated sludge process
The effect that the COD:TKN ratio had on total nitrogen removal efficiency. as well as, the effect on COD removal efficiency, nitrogen distribution in the effluent streams, and total system mixed liquor suspended solids concentrations in the activated sludge process as a function of the mean cell …
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Legacy Nutrient Management and Remediation in Diverse Agricultural Watersheds
… nutrients—phosphorus (P) stored in soils and nitrogen (N) stored in groundwater—that continue to be mobilized long after management changes are implemented. This dissertation evaluates the magnitude, persistence, uncertainty, and mitigation potential of legacy nutrient pollution across …
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Zeolite Incorporated Materials for Targeted Biomass Retention and Pollutant Removal
… nutrients, in waste streams. Nutrients such as nitrogen, are of major and growing concern because nitrogen removal from waste streams is energy and cost intensive; yet, without treatment cause eutrophication in aquatic systems. The aquatic health of the Volta River in Ghana was assessed by …
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Deammonification Process Kinetics and Inhibition Evaluation
A number of innovative nitrogen removal technologies have been developed to address the treatment challenges caused by stringent regulations and increasing chemical and energy cost. A major contributing factor to these challenges is the liquid stream originating from the process of dewatering …
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Sequential Anaerobic-Aerobic Digestion: A new process technology for biosolids product quality improvement
… of wastewater can help in achieving substantial nitrogen removal. These results suggest that sequential anaerobic-aerobic digestion can address multiple biosolid related problems. This study was designed to understand the effect of sequential anaerobic-aerobic digestion on the properties of …
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Βελτιστοποίηση φυσικών συστημάτων επεξεργασίας υγρών αποβλήτων
Η μελέτη ενός πειράματος μικρής πιλοτικής κλίμακας, με δύο παράλληλα συστήματα ρηχών λεκανών (ύψους 0.35m), η μία λεκάνη με φύτευση του είδους Typha Latifolia και η άλλη χωρίς φύτευση, διεξάχθηκε για τον σχεδιασμό ελεύθερης επιφανειακής ροής (FWS) τεχνητού υγροτόπου. Οι δύο λεκάνες τροφοδοτήθηκαν …