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Electrochemical Nitrogen Recovery From Wastewater: Fate of Organics, Long-Term Robustness Within Treatment Trains, and Product Diversification
Electrochemical Nitrogen Recovery From Wastewater: Fate of Organics, Long-Term Robustness ...
Electrochemical Nitrogen Recovery From Wastewater: Fate of Organics, Long-Term Robustness Within Treatment Trains, and Product Diversification

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자료유형  
 학위논문 서양
최종처리일시  
20250211152943
ISBN  
9798342125598
DDC  
621.48
저자명  
Kogler, Anna.
서명/저자  
Electrochemical Nitrogen Recovery From Wastewater: Fate of Organics, Long-Term Robustness Within Treatment Trains, and Product Diversification
발행사항  
[Sl] : Stanford University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
393 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Includes supplementary digital materials.
주기사항  
Advisor: Tarpeh, William.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2024.
초록/해제  
요약Nutrients (nitrogen and phosphorus) in wastewater have negative environmental, human health, and economic impacts, but are valuable components of fertilizers and other industrial chemicals. Nutrient management currently relies on energy- and chemical-intensive processes that remove nutrients from wastewater to prevent negative environmental impacts. Shifting from this removal approach to nutrient recovery from wastewater can create resource-efficient, circular systems that support increased sanitation access and greater equity in resource access. Electrochemical nitrogen recovery technologies, which are modular, easily automated, and multi-functional, can enable such circular systems but require further investigation guided by both existing research and practitioner needs for scale-up and implementation.Chapter 2 of this dissertation presents a systematic literature review on nutrient removal and recovery technologies combined with engagement of wastewater practitioners. A framework for reporting and comparing diverse nutrient technologies was proposed. Synthesizing peer-reviewed literature and practitioner input allowed prioritizing knowledge gaps and barriers to implementation into a research agenda that addresses the most reported gaps, presents performance metrics relevant to practice, and centers systemslevel evaluations. Guided by the findings in Chapter 2, Chapters 3 through 5 present experimental evaluations of multiple electrochemical nitrogen recovery processes. In Chapter 3, electrochemical stripping was demonstrated to perform consistently for over a month during continuous urine treatment, recovering multiple batches of ammonium sulfate fertilizer. The study also generated insights on process monitoring and reactor component failure during long-term operation. In Chapter 4, the fate of disinfection byproducts was characterized in electrochemical stripping, electrodialysis, and bipolar electrodialysis treating urine. The study indicated that recovered nitrogenous products were largely free of contamination with disinfection byproducts, but mitigation of these contaminants in treated urine and other reactor compartments is crucial for safe implementation of these technologies. In Chapter 5, a novel process, flexible electrochemical stripping, was evaluated during urine treatment. The process facilitated tailored recovery of ammonium sulfate and ammonia using electrochemical operating parameters to control product speciation and to achieve multiple commercially relevant product concentrations.These efforts advance a circular nitrogen economy by demonstrating feasibility of longterm operation, identifying needs and strategies for mitigating harmful byproducts, and enabling tunable recovery of multiple products that can be used as fertilizers, disinfectants, fuels, and feedstocks for chemical synthesis. The findings of this dissertation inform the design of resource-efficient wastewater treatment trains harnessing electrochemical nitrogen recovery to expand access to sanitation, valuable chemicals, and food.
일반주제명  
Reactors
일반주제명  
Environmental engineering
일반주제명  
Urine
일반주제명  
Resource recovery
일반주제명  
Effluents
일반주제명  
Energy consumption
일반주제명  
Technology
일반주제명  
Nitrogen
일반주제명  
By products
일반주제명  
Greenhouse gases
일반주제명  
Carbon
일반주제명  
Pandemics
일반주제명  
Fertilizers
일반주제명  
Ammonia
일반주제명  
Chemical engineering
일반주제명  
Nutrient removal
일반주제명  
Agronomy
일반주제명  
Climate change
일반주제명  
Energy
일반주제명  
Epidemiology
일반주제명  
Statistics
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
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MARC

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■0820  ▼a621.48
■1001  ▼aKogler,  Anna.
■24510▼aElectrochemical  Nitrogen  Recovery  From  Wastewater:  Fate  of  Organics,  Long-Term  Robustness  Within  Treatment  Trains,  and  Product  Diversification
■260    ▼a[Sl]▼bStanford  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a393  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aIncludes  supplementary  digital  materials.
■500    ▼aAdvisor:  Tarpeh,  William.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2024.
■520    ▼aNutrients  (nitrogen  and  phosphorus)  in  wastewater  have  negative  environmental,  human  health,  and  economic  impacts,  but  are  valuable  components  of  fertilizers  and  other  industrial  chemicals.  Nutrient  management  currently  relies  on  energy-  and  chemical-intensive  processes  that  remove  nutrients  from  wastewater  to  prevent  negative  environmental  impacts.  Shifting  from  this  removal  approach  to  nutrient  recovery  from  wastewater  can  create  resource-efficient,  circular  systems  that  support  increased  sanitation  access  and  greater  equity  in  resource  access.  Electrochemical  nitrogen  recovery  technologies,  which  are  modular,  easily  automated,  and  multi-functional,  can  enable  such  circular  systems  but  require  further  investigation  guided  by  both  existing  research  and  practitioner  needs  for  scale-up  and  implementation.Chapter  2  of  this  dissertation  presents  a  systematic  literature  review  on  nutrient  removal  and  recovery  technologies  combined  with  engagement  of  wastewater  practitioners.  A  framework  for  reporting  and  comparing  diverse  nutrient  technologies  was  proposed.  Synthesizing  peer-reviewed  literature  and  practitioner  input  allowed  prioritizing  knowledge  gaps  and  barriers  to  implementation  into  a  research  agenda  that  addresses  the  most  reported  gaps,  presents  performance  metrics  relevant  to  practice,  and  centers  systemslevel  evaluations.  Guided  by  the  findings  in  Chapter  2,  Chapters  3  through  5  present  experimental  evaluations  of  multiple  electrochemical  nitrogen  recovery  processes.  In  Chapter  3,  electrochemical  stripping  was  demonstrated  to  perform  consistently  for  over  a  month  during  continuous  urine  treatment,  recovering  multiple  batches  of  ammonium  sulfate  fertilizer.  The  study  also  generated  insights  on  process  monitoring  and  reactor  component  failure  during  long-term  operation.  In  Chapter  4,  the  fate  of  disinfection  byproducts  was  characterized  in  electrochemical  stripping,  electrodialysis,  and  bipolar  electrodialysis  treating  urine.  The  study  indicated  that  recovered  nitrogenous  products  were  largely  free  of  contamination  with  disinfection  byproducts,  but  mitigation  of  these  contaminants  in  treated  urine  and  other  reactor  compartments  is  crucial  for  safe  implementation  of  these  technologies.  In  Chapter  5,  a  novel  process,  flexible  electrochemical  stripping,  was  evaluated  during  urine  treatment.  The  process  facilitated  tailored  recovery  of  ammonium  sulfate  and  ammonia  using  electrochemical  operating  parameters  to  control  product  speciation  and  to  achieve  multiple  commercially  relevant  product  concentrations.These  efforts  advance  a  circular  nitrogen  economy  by  demonstrating  feasibility  of  longterm  operation,  identifying  needs  and  strategies  for  mitigating  harmful  byproducts,  and  enabling  tunable  recovery  of  multiple  products  that  can  be  used  as  fertilizers,  disinfectants,  fuels,  and  feedstocks  for  chemical  synthesis.  The  findings  of  this  dissertation  inform  the  design  of  resource-efficient  wastewater  treatment  trains  harnessing  electrochemical  nitrogen  recovery  to  expand  access  to  sanitation,  valuable  chemicals,  and  food.
■590    ▼aSchool  code:  0212.
■650  4▼aReactors
■650  4▼aEnvironmental  engineering
■650  4▼aUrine
■650  4▼aResource  recovery
■650  4▼aEffluents
■650  4▼aEnergy  consumption
■650  4▼aTechnology
■650  4▼aNitrogen
■650  4▼aBy  products
■650  4▼aGreenhouse  gases
■650  4▼aCarbon
■650  4▼aPandemics
■650  4▼aFertilizers
■650  4▼aAmmonia
■650  4▼aChemical  engineering
■650  4▼aNutrient  removal
■650  4▼aAgronomy
■650  4▼aClimate  change
■650  4▼aEnergy
■650  4▼aEpidemiology
■650  4▼aStatistics
■690    ▼a0542
■690    ▼a0775
■690    ▼a0285
■690    ▼a0404
■690    ▼a0791
■690    ▼a0766
■690    ▼a0463
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164283▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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