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 Within Treatment Trains, and Product Diversification
상세정보
- 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
- 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
- 로그인 후 원문을 볼 수 있습니다.
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.


