Urine collection in a multi-story building and opportunities for onsite recovery of nutrients and non-potable water

Jagtap, Neha; Boyer, Treavor H.

doi:10.1016/j.jece.2020.103964

Cited by 26 publications

(10 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[34] A study by Liu et al indicated complete urea hydrolysis could take up to 2 to over 6.5 days. [23] A more recent study focusing on urine collection on a building-scale by Jagtap et al demonstrated that complete urea hydrolysis could be achieved in 8 h. [24] This variable nature of urea hydrolysis inevitably results in unpredictable processing time and efficiency from batch to batch, creating uncertainty in a centralized facility. Consequently, it is necessary to incorporate long-term and large-scale urine storage units in onsite urine treatment for complete urea conversion prior to nitrogen recovery, which increases capital costs and makes it challenging for decentralized treatment systems (e.g., single family household).…”

Section: Resultsmentioning

confidence: 99%

“…[13,[20][21][22] However, ammonia/ammonium recovery from stored urine relies heavily on the complete hydrolysis of urea which can take up to days depending on the specific environment. [21,23,24] This duration further requires ample space for urine storage, efforts for urine collection and transportation, and sophisticated urine stabilization prior to the nitrogen recovery treatment [25] -all of which lead to higher capital costs and maintenance expenses. [26,27] Additionally, a substantial amount of ammonia-nitrogen is lost during the long-term urine storage period, [26] which fundamentally reduces the overall nitrogen recovery efficiency of the treatment process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modular Functionalization of Metal‐Organic Frameworks for Nitrogen Recovery from Fresh Urine**

et al. 2023

View full text Add to dashboard Cite

Nitrogen recovery from wastewater represents a sustainable route to recycle reactive nitrogen (Nr). It can reduce the demand of producing Nr from the energy‐extensive Haber‐Bosch process and lower the risk of causing eutrophication simultaneously. In this aspect, source‐separated fresh urine is an ideal source for nitrogen recovery given its ubiquity and high nitrogen contents. However, current techniques for nitrogen recovery from fresh urine require high energy input and are of low efficiencies because the recovery target, urea, is a challenge to separate. In this work, we developed a novel fresh urine nitrogen recovery treatment process based on modular functionalized metal‐organic frameworks (MOFs). Specifically, we employed three distinct modification methods to MOF‐808 and developed robust functional materials for urea hydrolysis, ammonium adsorption, and ammonia monitoring. By integrating these functional materials into our newly developed nitrogen recovery treatment process, we achieved an average of 75% total nitrogen reduction and 45% nitrogen recovery with a 30 minutes treatment of synthetic fresh urine. The nitrogen recovery process developed in this work can serve as a sustainable and efficient nutrient management that is suitable for decentralized wastewater treatment. This work also provides a new perspective of implementing versatile advanced materials for water and wastewater treatment.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modular Functionalization of Metal‐Organic Frameworks for Nitrogen Recovery from Fresh Urine**

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Ammonia separated from urine by air (Behrendt et al, 2002;Basakcilardan-Kabakci et al, 2007;Antonini et al, 2011;Morales et al, 2013;Liu et al, 2015;Xu et al, 2017;Jagtap and Boyer, 2018;Jagtap and Boyer, 2020) or membrane stripping (Tarpeh et al, 2018a;Christiaens et al, 2019;Pradhan et al, 2019) can be absorbed in water or sulfate acid solution to yield liquid N-products such as ammonia water or ammonium sulfate solution. However, an autofluorescent E. coli spiked in the urine was also observed in the absorbent (Christiaens et al, 2019), which should be caused by the transfer of microorganisms from urine to the absorbent via aerosols induced by air stripping (Benami et al, 2016).…”

Section: Stripping-absorption Of Ammonia To Obtain Liquid N-productsmentioning

confidence: 99%

Pathogens inactivation in nutrient recovery from urine: A review

Lü

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

Urine source separation, a kind of new sewage management concept, has made great progress in technology development and application in the past 30 years. However, understanding of the potential microbial risks in reuse of urine-derived fertilizer products (UDFPs) in agriculture is still lacking. Outbreak of pandemic of Coronavirus Disease 2019 and more deadly disease caused by Monkeypox strongly sounds the alarm bell to the attention on pathogens in urine and their fate in UDFPs. Therefore, this study presented a comprehensive review on pathogens inactivation in nutrient recovery technologies. The review suggests that technologies using alkaline or heating treatment can effectively reduce pathogens in UDFPs. However, technologies with characteristics such as membrane rejection of nutrients or nutrient adsorption may even concentrate pathogens in their fertilizer products. Based on an overall assessment, connections of technologies and the pathogens inactivation in their UDFPs have been established. This would help to provide a perspective on development of urine treatment technology and management of microbial risks in reusing urine nutrients in agriculture.

show abstract

“…Third, urine diversion has more recently become a niche activity, recognizing that urine is a small volume (< 2 L/day-capita) with high P content (ca 600 mg P/L). Urine diversion requires the use of waterless urinals and urine-diverting toilets, which means P can be more efficiently extracted from urine than from wastewater (O'Neal & Boyer, 2013;Jagtap & Boyer, 2020). Urine diversion may be especially valuable to reduce new P loads to wastewater treatment plants, allowing them to increase connections from households on septic systems or new buildings without overloading the plants (Wood et al, 2016).…”

Section: Transitions In Us Urban Phosphorus Recyclingmentioning

confidence: 99%

A transition management framework to stimulate a circular phosphorus system

Peterson

Baker

Aggarwal

et al. 2021

Environ Dev Sustain

Self Cite

View full text Add to dashboard Cite

As the global population is projected to increase by two billion people by 2050, so will the demand for phosphorus (P), an essential nutrient for all living organisms and a major driver of eutrophication. To sustainably meet these challenges, we apply the conceptual framework of transition management (TM) to demonstrate how the trajectory of the current linear P use system could be strategically shifted toward a more circular P system. We present US case studies to examine P transitions management in intensive agriculture, wastewater disposal, and food waste management. Our goal is twofold. By first understanding past transitions in P management in the USA, we can build upon these insights for future management. This can then be applied to other global regions such as developing countries to bypass stages of transition as they intensify agriculture, incorporate sewers into cities, and expand waste management, to avoid becoming entrenched in unsustainable P management. We suggest how spaces for experimentation and collaboration can be created, how and which actor networks can be mobilized, and what action strategies and policies can be recommended to accelerate their transition to P sustainability. Our case studies show that while substantial improvements have been made, the transition toward a circular economy of P is far from complete. Our findings point to the value of utilizing TM for future progress in the US Development of TM frameworks for managing P in other regions of the world may enable them to achieve sustainable P development faster and more effectively than the USA.

show abstract

Urine collection in a multi-story building and opportunities for onsite recovery of nutrients and non-potable water

Cited by 26 publications

References 41 publications

Modular Functionalization of Metal‐Organic Frameworks for Nitrogen Recovery from Fresh Urine**

Modular Functionalization of Metal‐Organic Frameworks for Nitrogen Recovery from Fresh Urine**

Pathogens inactivation in nutrient recovery from urine: A review

A transition management framework to stimulate a circular phosphorus system

Contact Info

Product

Resources

About