ACS symposium series, Journal Year: 2025, Volume and Issue: unknown, P. 369 - 387
Published: Feb. 28, 2025
Language: Английский
ACS symposium series, Journal Year: 2025, Volume and Issue: unknown, P. 17 - 46
Published: Feb. 28, 2025
Language: Английский
Citations
2
Water Research, Journal Year: 2022, Volume and Issue: 218, P. 118504 - 118504
Published: April 25, 2022
Ammonia recovery from centrate of an anaerobic digester was investigated using onsite bipolar-electrodialysis (BP-ED) pilot scale plant coupled to two liquid/liquid membrane contactor (LLMC) modules. To investigate the process performance and robustness, operated at varying current densities, load ratio (current nitrogen loading), in continuous intermittent (Donnan) mode. A higher led total ammonium (TAN, sum ammonia ammonium) removal efficiency, whereas increase applied did not have a significant impact TAN efficiency. Continuous application resulted compared with Donnan dialysis The lowest specific energy consumption 6.3 kWh kgN-1 recorded mode, 1.4, 200 L h-1 flowrate density 75 m-2. Lower demand observed mode likely due lower scaling fouling ion exchange membranes. Nevertheless, limited operation BP-ED stack all operational modes, which had be interrupted by daily cleaning procedures. LLMC module enabled highly selective as sulfate ((NH4)2SO4), concentration ranging 19 33 gN L-1. However, analysis per- polyfluoroalkyl substances (PFASs) obtained (NH4)2SO4 product revealed presence 212-253 ng L-1 6:2 fluorotelomer sulfonate (FTS), common substitute legacy PFAS. Given very low concentrations FTS (i.e., < 2 L-1) encountered concentrated stream, released Teflon-based components sulfuric acid dosage line. Thus, careful selection tubing, pumps other is required avoid any risks associated PFAS ensure safe use final fertilizer.
Language: Английский
Citations
43
Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(11), P. 4379 - 4395
Published: March 6, 2023
Electricity-driven microbial metabolism relies on the extracellular electron transfer (EET) process between microbes and electrodes provides promise for resource recovery from wastewater industrial discharges. Over past decades, tremendous efforts have been dedicated to designing electrocatalysts microbes, as well hybrid systems push this approach toward adoption. This paper summarizes these advances in order facilitate a better understanding of electricity-driven sustainable waste-to-resource solution. Quantitative comparisons electrosynthesis abiotic are made, strategy electrocatalyst-assisted is critically discussed. Nitrogen processes including electrochemical N2 fixation, electrocatalytic reduction, dissimilatory nitrate reduction ammonium (DNRA), ammonia (Abio-NRA) systematically reviewed. Furthermore, synchronous carbon nitrogen using inorganic-biological discussed, advanced physicochemical, microbial, characterizations involved field. Finally, perspectives future trends presented. The valuable insights potential contribution valorization waste green society.
Language: Английский
Citations
28
ACS Environmental Au, Journal Year: 2024, Volume and Issue: 4(2), P. 89 - 105
Published: Jan. 12, 2024
Nitrogen in wastewater has negative environmental, human health, and economic impacts but can be recovered to reduce the costs environmental of treatment chemical production. To recover ammonia/ammonium (total ammonia nitrogen, TAN) from urine, we operated electrochemical stripping (ECS) for over a month, achieving 83.4 ± 1.5% TAN removal 73.0 2.9% recovery. With two reactors, sixteen 500-mL batches (8 L total) ammonium sulfate (20.9 g/L approaching commercial fertilizer concentrations (28.4 often having >95% purity. While evaluating operation maintenance needs, identified pH, full-cell voltage, product volume, water flux into as informative process monitoring parameters that inexpensively rapidly measured. Characterization fouled cation exchange omniphobic membranes informs cleaning reactor modifications fouling with organics calcium/magnesium salts. evaluate impact urine collection storage on ECS, conducted experiments at different levels dilution flush water, extents divalent precipitation, degrees hydrolysis. ECS effectively treated under all conditions, minimizing ensuring until complete hydrolysis would enable energy-efficient Our experimental results cost analysis motivate multifaceted approach improving ECS's technical viability by extending component lifetimes, decreasing costs, reducing energy consumption through material, reactor, engineering. In summary, demonstrated foothold nutrient recovery while supporting applicability seven other wastewaters widely varying characteristics. findings will facilitate scale-up deployment technologies, enabling circular nitrogen economy fosters sanitation provision, efficient production, resource protection.
Language: Английский
Citations
13
The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 937, P. 173446 - 173446
Published: May 23, 2024
Language: Английский
Citations
11
Waste Management, Journal Year: 2024, Volume and Issue: 182, P. 11 - 20
Published: April 15, 2024
Recycling aluminium in a rotary furnace with salt-fluxes allows recovering valuable alloys from hard-to-recycle waste/side-streams such as packaging, dross and incinerator bottom ash. However, this recycling route generates large amounts of salt-slag/salt-cake hazardous wastes which can pose critical environmental risks if landfilled. To tackle issue, the metallurgical industry has developed processes to valorise salt-slag residues into recyclable salts concentrates, while producing by-products ammonium sulphate non-metallic compounds (NMCs), applications construction or chemical industries. This study aims assess through LCA impacts furnaces for both management routes: valorisation landfill. It was found that process brings forth considerable net profits, increase all considered impact categories is valorised. The main benefits arise production secondary cast alloys, not unexpected due high energy intensity primary production. results also identify other hotspots play significant role, should be optimisation based on its performance, by-products, consumption energy/fuels avoidance landfilling waste. Additionally, assessment shows indicators mineral resource scarcity, human carcinogenic toxicity terrestrial ecotoxicity are particularly benefited by valorisation. Finally, sensitivity analysis illustrates criticality metal yield assumptions when calculating global warming potential routes.
Language: Английский
Citations
10
Agronomy, Journal Year: 2024, Volume and Issue: 14(1), P. 119 - 119
Published: Jan. 2, 2024
Struvite and ammonium nitrate (AN), as wastewater-recovered products, are possible alternatives raw materials for nutrient solutions. However, their impact on the rhizosphere microbiota N2O emissions is scarcely known. Therefore, present research studies ecological changes in bulk-substrate microbiome its correlation with a perlite-based system tomato crop under (i) conventional synthetic fertigation management; (ii) struvite; (iii) struvite AN. A high bacterial diversity natural presence of plant-growth-promoting rhizobacteria soilless highlighted. different N-NH4+:N-NO3− ratios influence niches ammonia-oxidizing archaea (AOA) bacteria (AOB), stronger response by AOB community, while AOA kept constant regarding fertilization applied. Despite this, enrichment N-transforming phylotypes was relatively enhanced (mainly Nitrosomonas, Nitrosospira, Nitrospira) concomitant production when overapplied. In absence plant, were positively correlated, respectively, Nitrosospira AOB:AOA ratio, suggesting potential indicators availability substrate. Fertilizer blends using recovered nutrients feasible alternative increasing circularity horticulture. Nevertheless, optimum fertilizer management needed due to emissions.
Language: Английский
Citations
4
Resources Conservation and Recycling, Journal Year: 2024, Volume and Issue: 203, P. 107463 - 107463
Published: Feb. 7, 2024
Language: Английский
Citations
4
Current Opinion in Electrochemistry, Journal Year: 2024, Volume and Issue: 46, P. 101498 - 101498
Published: March 29, 2024
Language: Английский
Citations
4
Applied Water Science, Journal Year: 2025, Volume and Issue: 15(2)
Published: Jan. 24, 2025
Abstract Ammonia presence in water has many negative impacts including eutrophication. So, the major objective of this research was to evaluate efficiency microbial fuel cell (MFC) and electrochemical (ECS) systems for their removal and/or recovery from wastewater at different levels ammonia (500 ppm, 1000 1500 ppm). Additionally, a novel approach tested by using nanomaterial prepared pomegranate peel as coating material electrodes it is abundant countries. Two were tested: Group (A) with non-coated graphite plate anode (MFC1 ECS1) (B) which coated nano-graphene oxide made peels (MFC2 ECS2). Results revealed that MFC1 gave best reaching 96.2% when initial concentration 500 ppm after 13 days, MFC2 maximum 94.4% 99.4% 19 25 respectively. COD results coincided efficiency. Electrochemical carried out two external electrical currents, 40 80 mA. showed ECS2 highest 95.08% mA case 80% along an increase pH cathode chamber. Furthermore, consumed less energy than ECS1 recovery. efficiently treated slaughterhouse almost 100% removal; however, 44.7% occurred 6 h, but consuming ECS1. It evidenced nanographene provided dual benefits quickness effective provisioning requirements.
Language: Английский
Citations
0