Ammonium recovery from model solutions and sludge liquor with a combined ion exchange and air stripping process

Lubensky, Jan; Ellersdorfer, Markus; Stocker, Kristina

doi:10.1016/j.jwpe.2019.100909

Cited by 38 publications

(15 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the net CED was 151 MJ/pe×a compared to 201 MJ/pe×a obtained from the reference scenario. This reduction was due to the possibility to recover the NH4 + -N as ammonium sulphate ((NH4)2SO4) which can be used in the fertilizer industry (Lubensky et al, 2019). The difference in CED between the IEX-KCl-MEM and IEX-NaCl-MEM scenarios (208 and 151 MJ/pe×a, respectively) was due to the higher energy required for the production of KCl compared to NaCl (Ecoinvent, 2017).…”

Section: Discussionmentioning

confidence: 99%

Resilience and life cycle assessment of ion exchange process for ammonium removal from municipal wastewater

Guida

Conzelmann

Remy

et al. 2021

Science of The Total Environment

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Resilience and life cycle assessment of ion exchange process for ammonium removal from municipal wastewater

Guida

Conzelmann

Remy

et al. 2021

Science of The Total Environment

View full text Add to dashboard Cite

“…A pH value between 8 and 9 reveals high and fast P-removal rates, which enables the application of a combined N-and P-removal in real wastewaters (e.g., sludge liquor, biogas digestates, pig manure), which are in the same range of pH. In the ILS process ammonium is recovered from the zeolite by sodium hydroxide using reversed ion exchange of ammonium sorption [26]. As precipitated calcium phosphate only dissolves in acid solutions, ammonium recovery in the ILS process with basic solutions has no impact on zeolites Ploading.…”

Section: Discussionmentioning

confidence: 99%

Kinetics of Simultaneous Ammonium and Phosphate Recovery by Natural Zeolite

Pesendorfer

Ellersdorfer

2021

ChemEngineering

Self Cite

View full text Add to dashboard Cite

Nowadays, fertilizers containing nitrogen and phosphorus are indispensable for medium and large-scale industrial agriculture. To meet the growing demand of nutrients and reduce the accompanied ecological footprint of primary fertilizer production, processes and technologies for nutrient recovery are necessary and have to be developed. This study represents the basis of an extension of the ion-exchange-loop-stripping process (ILS), which is a combined stripping and ion exchange process using natural zeolite for nitrogen recovery. In batch experiments with a special zeolite filled stirrer, the mechanism and kinetics of simultaneous ammonium and phosphate recovery by natural zeolite were determined. Zeolite loadings of 6.78 mg PO43− g−1 were reached and after regeneration, phosphate recovery rates up to 75% of the initial concentration were achieved. The speed of phosphate precipitation is mostly controlled by the pH value of synthetic wastewater. Phosphate removal in simultaneous experiments does not affect ammonium sorption onto zeolite. These findings and the different removal mechanisms of ammonium and phosphate lead to versatile applications in wastewater treatment and reveal great potential of natural zeolite in simultaneous nutrient recovery processes.

show abstract

“…The replacement of alkali and alkaline earth ions (Na + , K + , Ca 2+ , and Mg 2+ ) on both adsorbents by Cd 2+ and Pb 2+ indicated that the dominant mechanism was ion exchange. Lubensky, Ellersdorfer, and Stocker (2019) used the ion exchanger loop stripping process (ILS) to remove and recover ammonium from model solutions and sludge liquor. Ammonium replaced Ca 2+ , followed by K + , Na + , and Mg 2+ of the ion exchanger, zeolite.…”

Section: Annual Literature Reviewmentioning

confidence: 99%

“…Lubensky, Ellersdorfer, and Stocker (2019) used the ion exchanger loop stripping process (ILS) to remove and recover ammonium from model solutions and sludge liquor. Ammonium replaced Ca 2+ , followed by K + , Na + , and Mg 2+ of the ion exchanger, zeolite.…”

Section: Chemical Processesmentioning

confidence: 99%

Physico‐chemical processes

Yu¹,

Yao²,

Pan³

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

By summarizing 187 relevant research articles published in 2019, the review is focused on the research progress of physicochemical processes for wastewater treatment. This review divides into two sections, physical processes and chemical processes. The physical processes section includes three subsections , that is, adsorption, granular filtration, and dissolved air flotation, whereas the chemical processes section has five subsections , that is, coagulation/flocculation, advanced oxidation processes, electrochemical, capacitive deionization, and ion exchange.

show abstract

Ammonium recovery from model solutions and sludge liquor with a combined ion exchange and air stripping process

Cited by 38 publications

References 7 publications

Resilience and life cycle assessment of ion exchange process for ammonium removal from municipal wastewater

Resilience and life cycle assessment of ion exchange process for ammonium removal from municipal wastewater

Kinetics of Simultaneous Ammonium and Phosphate Recovery by Natural Zeolite

Physico‐chemical processes

Contact Info

Product

Resources

About