scholarly journals Ammonium Removal from Alkaline Groundwater Using A Dropping Nitrification Unit with Sponge or Biofringe Material

2021 ◽  
Vol 19 (6) ◽  
pp. 302-315
Author(s):  
Amit Kumar Maharjan ◽  
Tatsuru Kamei ◽  
Kazuhiro Mori ◽  
Kei Nishida ◽  
Tadashi Toyama
Keyword(s):  
Ammonium Removal ◽  
Alkaline Groundwater

scholarly journals Phosphate and Ammonium Removal from Water through Electrochemical and Chemical Precipitation of Struvite

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 150
Author(s):  
Kyösti Rajaniemi ◽  
Tao Hu ◽  
Emma-Tuulia Nurmesniemi ◽  
Sari Tuomikoski ◽  
Ulla Lassi
Keyword(s):  
Energy Efficiency ◽  
Water Treatment ◽  
Chemical Precipitation ◽  
Phosphate Removal ◽  
Nutrient Recovery ◽  
Ammonium Removal ◽  
Synthetic Water

Batch electrocoagulation (BEC), continuous electrocoagulation (CEC), and chemical precipitation (CP) were compared in struvite (MgNH4PO4·6H2O) precipitation from synthetic and authentic water. In synthetic water treatment (SWT), struvite yield was in BEC 1.72, CEC 0.61, and CP 1.54 kg/m3. Corresponding values in authentic water treatment (AWT) were 2.55, 3.04, and 2.47 kg/m3. In SWT, 1 kg struvite costs in BEC, CEC, and CP were 0.55, 0.55, and 0.11 €, respectively, for AWT 0.35, 0.22 and 0.07 €. Phosphate removal in SWT was 93.6, 74.5, and 71.6% in BEC, CEC, and CP, respectively, the corresponding rates in AWT were 89.7, 77.8, and 74.4%. Ammonium removal for SWT in BEC, CEC, and CP were 79.4, 51.5, and 62.5%, respectively, rates in AWT 56.1, 64.1, and 60.9%. Efficiency in CEC and BEC are equal in nutrient recovery in SWT, although energy efficiency was better in CEC. CP is cheaper than BEC and CEC.

Ammonium removal from landfill fresh leachate using zeolite as adsorbent

2021 ◽  
Author(s):  
Shole Mosanefi ◽  
Nadali Alavi ◽  
Akbar Eslami ◽  
Mohsen Saadani ◽  
Abdolla Ghavami
Keyword(s):  
Ammonium Removal

scholarly journals Modified Exfoliated Carbon Nanoplatelets as Sorbents for Ammonium from Natural Mineral Waters

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3541
Author(s):  
Ion Ion ◽  
Daniela Bogdan ◽  
Monica Maria Mincu ◽  
Alina Catrinel Ion
Keyword(s):  
Natural Waters ◽  
Mineral Waters ◽  
Aqueous Samples ◽  
Sorption Mechanism ◽  
Characteristic Parameters ◽  
Sorption Characteristic ◽  
Natural Mineral ◽  
Maximum Sorption Capacity ◽  
Ammonium Removal ◽  
Maximum Sorption

In this manuscript an improved sorbent based on modified exfoliated carbon nanoplatelets, applied in the removal of ammonium from aqueous samples, is presented. This sorbent showed better efficiency in comparison with the previous one obtained in our group for ammonium removal, the values of the maximum sorption capacity being improved from 10 to 12.04 mg/g. In terms of kinetics and sorption characteristic parameters, their values were also improved. Based on these results, a sorption mechanism was proposed, taking into account ion-exchange and chemisorption processes at the surface of the oxidized exfoliated carbon nanoplatelets. Future applications for simultaneous removal of other positive charged contaminants from natural waters might be possible.

Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal

2021 ◽  
Author(s):  
Eleni Gianni ◽  
Christina Vasiliki Lazaratou ◽  
Georgios Panagopoulos ◽  
Panagiota Sarantari ◽  
Fotini Martsouka ◽  
...  
Keyword(s):  
Water Treatment ◽  
Low Concentration ◽  
Ammonium Removal ◽  
Modified Palygorskite

Modelling simultaneous anaerobic methane and ammonium removal in a granular sludge reactor

2015 ◽  
Vol 73 ◽  
pp. 323-331 ◽  
Author(s):  
M-K.H Winkler ◽  
K.F. Ettwig ◽  
T.P.W. Vannecke ◽  
K. Stultiens ◽  
A. Bogdan ◽  
...  
Keyword(s):  
Granular Sludge ◽  
Ammonium Removal

Ammonium removal from groundwater using peanut shell based modified biochar: Mechanism analysis and column experiments

2021 ◽  
Vol 43 ◽  
pp. 102219
Author(s):  
Qiang An ◽  
Zheng Li ◽  
Ying Zhou ◽  
Fanyu Meng ◽  
Bin Zhao ◽  
...  
Keyword(s):  
Column Experiments ◽  
Peanut Shell ◽  
Mechanism Analysis ◽  
Ammonium Removal ◽  
Modified Biochar

Characteristics of Alcaligenes sp. LS2T Heterotrophic and Aerobic Ammonium Removal for Potential Livestock’s Wastewater Treatment

2017 ◽  
pp. 337-344 ◽  
Author(s):  
Aldyon Restu Azkarahman ◽  
Yuny Erwanto ◽  
Widodo Hadisaputro ◽  
Lies Mira Yusiati ◽  
Nanung Agus Fitriyanto
Keyword(s):  
Wastewater Treatment ◽  
Ammonium Removal

Biodegradation ofp-Chloroaniline and Ammonium Removal in Continuous Biofilm Reactors

2013 ◽  
Vol 42 (4) ◽  
pp. 449-455 ◽  
Author(s):  
Ana J. González ◽  
Lina X. Celis Bautista ◽  
Mariana Papalia ◽  
Marcela Radice ◽  
Gabriel Gutkind ◽  
...  
Keyword(s):  
Ammonium Removal ◽  
Biofilm Reactors
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