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Showing 1 to 15 of 15 for “"centrate"”.
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Ammonia Recovery from Digester Centrate with Electrochemical Membrane Systems: Mechanism, Performance, and Application
… in some wastewaters like anaerobic digester (AD) centrate. However, both Haber-Bosch process and conventional wastewater ammonia treatment process are energy intensive, which making direct ammonia recovery from wastewater streams become increasingly beneficial in order to achieve sustainable …
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Demonstration of anaerobic digestion centrate as a nitrogen & water source for corn grain production
Made available in DSpace on 2015-07-22T22:18:22Z (GMT). No. of bitstreams: 2 SCHAEFER-THESIS-2015.pdf: 3111504 bytes, checksum: 43518d7f488790999c09d3ed9976c539 (MD5) LICENSE.txt: 4213 bytes, checksum: f053693976a29be362a334c94de4dab9 (MD5) Previous issue date: 2015-05-01
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Characterization and treatment of UV quenching substances and organic nitrogen in landfill leachates and thermal hydrolysis/anaerobic digestion centrate
… hydrolysis pretreated anaerobic digestion centrate can quench UV light at publicly owned treatment works (POTWs). Increased eutrophication, has led to tightening of nutrient discharge limits in some regions of the country. Biologically recalcitrant organic nitrogen, adds to effluent …
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Chemical equilibrium modeling of phosphorus removal and recovery processes for advanced wastewater treatment
… However, the dewatered sludge liquor or centrate contains very high levels of nutrients (nitrogen and phosphorus) that needs to be removed from this water stream before being returned to the secondary treatment process. This recycle stream adds additional nutrients to the plant which …
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Optimization of Struvite Recovery Utilizing Magnesium Oxide
… from anaerobically digested supernatant (centrate) through the Pearl® process. MgO is produced from magnesite (MgCO3) calcination, and different calcination conditions can alter the quality and characteristics of the MgO product. It was hypothesized that the insolubility of MgO could …
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Prediction of struvite formation potential in Ebpr digested sludge using mass balances, batch precipitation tests, and chemical equilibrium modeling
… struvite formation potential of digested sludge centrate is investigated using mass balances, batch tests, and chemical equilibrium modeling with the software MINEQL+.
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Struvite Recovery From Source-Separated Urine Utilizing Fluidized Bed Technology
… liquor from anaerobically digested solids (centrate) processed through upflow fluidized bed reactor technologies (Britton et al. 2005). Prior research determined the influence of pH, magnesium to phosphorus (Mg:P) molar ratio, and age of urine on purity, pharmaceutical content and pathogen …
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Matrix Effects on Electrochemical Oxidation of PFAS in Real Wastewater Systems
… distinct wastewater types: municipal sludge centrate, wastewater effluent reverse osmosis (RO) concentrate, and municipal landfill leachate, using tubular Ti4O7 reactive electrochemical membranes (REMs). The first study (Chapter III) focused on understanding how specific inorganic anions and …
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Assessing the co-production of ammonia and methane for resource recovery optimization
… was beneficial for accumulating ammonia in the centrate making it an interesting subject for ammonia recovery. For biogas, the pH of the microcosms was the most determinant factor in optimizing the methane fraction in the biogas. The Pearson test proved the correlation between pH and methane …
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Advancing Forward Osmosis for Energy-efficient Wastewater Treatment towards Enhanced Water Reuse and Resource Recovery
… high-strength wastewater (i.e., the digestor centrate). The abovementioned research projects are among the earliest efforts to address multiple key challenges of FO during practical application, serving as a cornerstone to facilitate the transformation of current water/wastewater treatment …
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Anaerobic and Combined Anaerobic/Aerobic Digestion of Thermally Hydrolyzed Sludge
… and can be recycled as part of filtrate or centrate stream. Nitrogen has gained importance because it has adverse effects on ecosystem's as well as human health. NH₄⁺, NO₂⁻, NO₃⁻-, and organic nitrogen are the different forms of nitrogen found in wastewater. While ammonia is toxic to aquatic …
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Deammonification Process Kinetics and Inhibition Evaluation
… digested solids. This liquid, also knows as centrate, reject water or sludge liquor, can cause an increase of up to 25% in ammonia loading. The recently discovered anaerobic ammonia oxidation (anammox) process is a major breakthrough for treatment of these streams as it has the potential to …
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Movement-based performing arts as an approach to embodied learning in secondary teacher education [Arti performative basate sul movimento come approccio all'apprendimento corporeo nella formazione docente per la scuola secondaria]
… le arti performative basate sul movimento incentrate sull'immaginazione corporea come un'area artistica distinta, ponendo l'accento sugli aspetti creativi, tecnici e pedagogici specifici. Traccia l'evoluzione delle pratiche centrate sul movimento nel teatro, nella danza e nell'arte …
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Performance and metagenomic microbial analysis of a novel, pilot-scale reactor with rotating algal contactors used to treat anaerobic digester sludge filtrate containing high total ammonia
This report details our investigation of a novel, fixed-biofilm algal and bacterial system for the treatment of high-strength municipal anaerobic digester filtrate. Each reactor in the pilot-scale system comprises multiple AlgaewheelTM rotating algal contactors (RACs) that help efficiently …
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Impact of operating conditions on thermal hydrolysis pre-treated digestion return liquor
Return liquor from thermal hydrolysis process (THP) can significantly add to the nitrogen load of a wastewater treatment plant (WWTP) and introduce UV quenching substances to the wastewater stream when recycled. While there are mature technologies in place to handle the inorganic nitrogen produced …