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 20 of 40 for “"Nutrient Recovery"”.
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Post-hydrothermal liquefaction wastewater (PHW) nutrient recovery by Trametes versicolor mycoremediation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Controlling crystallization via interfacial engineering : patterning, fouling-inhibition, and nutrient recovery
… anti-fouling, and as a separation process for recovery. Interfacial engineering is a natural starting point for controlling crystallization due to a propensity of many forms of crystals to form at phase boundaries. Control of crystallization on solid substrates is accomplished by modification …
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Tailored water treatment in distributed wastewater reclamation: investigation of biological stability, and energy and nutrient recovery
… exacerbated by lack of technologies for energy recovery from wastewater—energy recovery from solids is infeasible for facilities treating less than 19 ML day–1 (5 Mgal d–1). Sequencing batch bioreactor (SBR) is an activated sludge technology recognized as a reliable and robust biological …
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Opportunities for Nutrient Recovery from Post-Digestion Sludge Handling: Analysis and Feasibility Study Using Municipal Scale Aerobic and Anaerobic Digesters
… innovations in process efficiencies, energy recovery, and nutrient removal. Wastewater offers opportunity for recovery of resources of various economic values, and recent research aims at process innovation to optimize resource recovery while still achieving the primary goals of the treatment …
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Community structure and function of mixed microalgal communities for nutrient recovery and the selection of lipid and carbohydrate accumulators for enhanced feedstock production in wastewater treatment
… are uniquely positioned to meet 21st century nutrient removal needs from wastewater – they have the potential to offer low-cost, low-input nitrogen and phosphorus recovery with effluent nutrient concentrations below the current limit-of-technology while simultaneously producing carbon-rich …
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The suitability of the microalgal metabolism for the recovery of nutrients from wastewater: the implications of solids residence time and diel cycles
The development of technologies for resource recovery from wastewater is an important part of modernizing our water infrastructure to become an integral part of a clean economy. Wastewater is a continuous source of renewable chemical and thermal energy as well as nutrient resources like nitrogen …
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EXPLORING INNOVATIVE TECHNOLOGIES FOR NUTRIENT REMOVAL AND RECOVERY FROM AGRO-INDUSTRIAL WASTEWATER: ANAMMOX AND ELECTROCHEMICAL PROCESSES
… field, and specifically in the topic of nutrient removal and recovery from nutrient-rich wastewater generated from the management of agro-industrial residues (i.e., anaerobic digestion supernatant and swine manure denitrified effluent). Particularly, the single-step Partial …
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The development of a three phase plant-wide mathematical model for sewage treatment
… of energy consumption and cost while maximizing nutrient recovery and improving effluent quality, the purpose of this project is to develop three phase (aqueous-gas-solid) steady state and dynamic mathematical models for the anaerobic and aerobic digestion of sludge; including waste activated …
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Electrochemical water technologies for resource recovery using polymer electrolytes
… demand. Technologies such as electrochemical nutrient recovery and water electrolysis are promising methods to obtain valuable products from typically unutilized streams. For nutrient recovery, agricultural or municipal waste are wasted resources harboring valuable sustainable phosphorous and …
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Quantifying magnitude of potential phosphorus removal and recovery using plant-wide modeling
Minimizing the release of nutrients from municipal Water Resource Recovery Facilities (WRRF) and runoff is vital to reducing nutrient pollutants in waterways. In the United States, municipal WRRF implement phosphorus (P) removal and recovery processes to limit nutrient releases leading to …
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Exploring Forward Osmosis Systems for Recovery of Nutrients and Water
Livestock wastewater contains a large amount of nutrients that are available for recovery. In this study, a proof of concept process based on forward osmosis (FO) was proposed and investigated for in-situ formation of struvite from digested swine wastewater. This FO system took advantage of a …
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Understanding the impacts of supersaturation and seed crystal loading on struvite precipitation kinetics and collection efficiency
To valorize nutrient rich streams at wastewater treatment plants, installations of full-scale phosphorus removal with struvite precipitation processes is increasing. Utilities are increasingly understanding the necessity for higher levels of nutrient removal due to the regulatory pressures and the …
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Method development for the characterization of intrinsic and extant kinetic parameters in microalgal cultures
… reliable treatment processes for water resource recovery facilities, however, it is critical that we have robust, mechanistic models of phototrophic bioprocesses to predict performance under varying environmental conditions (light intensity, nutrient concentration, etc.). As we seek to develop …
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Intensification of Micro-Plasma Bubble Processing for N-Fixation and its Potential Application
… in urea/synthetic urine solutions for ammonia recovery as well as synergy of plasma-enzyme catalysis; (5) mini-review of potential plasma treatment that could be applied in human space exploration. Firstly, air plasma is much superior to nitrogen plasma for general nitrogen fixation in both …
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Photochemical processes in engineered aquatic systems for remediation of per- and polyfluoroalkyl substances and algae cultivation
… to natural biogeochemical processes (e.g., nutrient cycling). This thesis investigates (1) the application of a UV-sulfite photochemical treatment process for per- and polyfluoroalkyl substances (PFASs) destruction, and (2) the generation of photochemically produced reactive species in algal …
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Struvite Recovery From Source-Separated Urine Utilizing Fluidized Bed Technology
Source-separating urine for nutrient recovery may provide multiple benefits with regards to wastewater management, water conservation, and an impending phosphorus fertilizer shortage. Municipal wastewater systems are designed to treat the combination of urine, feces and graywater produced in …
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Hydrothermal liquefaction of wild-harvested cyanobacterial bloom from hypereutrophic Lake Tainter, Wisconsin
… high heating value (HHV)), energy balances, and nutrient recovery in the products were compared from each condition. Using HTL, at 340°C and 50 min retention time with 20%TS, 41.8±6.1% daf biocrude yield is possible with this feedstock. The biocrude produced has an HHV of 32.5 MJ/kg, recovering …
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Ammonia Recovery from Digester Centrate with Electrochemical Membrane Systems: Mechanism, Performance, and Application
… energy intensive, which making direct ammonia recovery from wastewater streams become increasingly beneficial in order to achieve sustainable nitrogen management. Electrochemical and membrane technology are emerging technologies that can achieve ammonia recovery with high recovery efficiency, …
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A computer simulation model for wastewater management in an integrated (fish production-hydroponics) system
… components of the overall system. Warm and nutrient-rich wastewater discharged from controlled-environment fish production facilities is a loss of heat energy and nutrients in addition to being potentially harmful to the environment. The operators of such systems need sophisticated …
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