Synthesis of a novel Fe–Mn binary oxide‐modified lava adsorbent and its effect on ammonium removal from aqueous solutions

2019 ◽  
Vol 92 (6) ◽  
pp. 850-864
Author(s):  
Ziyi Zhao ◽  
Shuang He ◽  
Fayong Li ◽  
Yingbing Jin ◽  
Sangar Khan ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Binary Oxide ◽  
Ammonium Removal

Ammonium removal from high-strength aqueous solutions by Australian zeolite

2016 ◽  
pp. 1-12 ◽  
Author(s):  
D. Thushari N. Wijesinghe ◽  
Kithsiri B. Dassanayake ◽  
Sven G. Sommer ◽  
Guttila Y. Jayasinghe ◽  
Peter J. Scales ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
High Strength ◽  
Ammonium Removal

Ammonium removal from aqueous solutions by fixed-bed column using corncob-based modified biochar

2017 ◽  
Vol 40 (6) ◽  
pp. 683-692 ◽  
Author(s):  
Lan Huong Nguyen ◽  
Thi Mai Vu ◽  
Thi Trinh Le ◽  
Van Tuyen Trinh ◽  
Thi Pha Tran ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Ammonium Removal ◽  
Modified Biochar

scholarly journals Lampiran 5A paper Removal of nitrate, ammonia and phosphate from aqueous solutions in packed bed filterusing biochar augmented sand media

2021 ◽  
Author(s):  
Philiphi de Rozari
Keyword(s):  
Aqueous Solutions ◽  
Nitrate Removal ◽  
Packed Bed ◽  
Packed Columns ◽  
Synthetic Wastewater ◽  
Nutrient Concentrations ◽  
Ammonium Removal ◽  
Regulatory Limits ◽  
Maximum Allowable Concentrations ◽  
Study Laboratory

Nutrients from wastewater are a major source of pollution because they can cause significant impact on the ecosystem. Accordingly, it is important that the nutrient concentrations are kept to admissible levels to the receiving environment. Often regulatory limits are set on the maximum allowable concentrations in the effluent. Therefore, wastewater must be treated to meet safe levels of discharge. In this study, laboratory investigation of the efficiency of packed bed filters to remove nitrate, ammonium and phosphate from aqueous solutions were conducted. Sand and sand augmented with hydrochloric acid treated biochar (SBC) were used as packing media. Synthetic wastewater solution was prepared with PO43-, NO3-, NH4+ concentrations 20, 10, 50 mg/L, respectively. Each experiment ran for a period of five days; samples from the effluent were collected on alternate days. All experiments were duplicated. Over the experiment period, the average removal efficiency of PO43-, NO3-, NH4+ were 99.2%, 72.9%, 96.7% in the sand packed columns and 99.2%, 82.3%, 97.4% in the SBC packed columns, respectively. Although, the presence of biochar in the packing media had little effect on phosphate and ammonium removal, it significantly improved nitrate removal

scholarly journals Investigation of kinetics and adsorption isotherm for fluoride removal from aqueous solutions using mesoporous cerium–aluminum binary oxide nanomaterials

RSC Advances ◽  
2021 ◽  
Vol 11 (46) ◽  
pp. 28744-28760
Author(s):  
Rumman Zaidi ◽  
Saif Ullah Khan ◽  
I. H. Farooqi ◽  
Ameer Azam
Keyword(s):  
Adsorption Isotherm ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Removal Efficiency ◽  
Small Dose ◽  
Binary Oxide ◽  
Fluoride Removal ◽  
Maximum Adsorption Capacity

Mesoporous Ce–Al binary oxide nanomaterials prepared with a surface area of 110.32 m2 g−1 showed defluoridation capacity at pH 2.4, exhibited maximum adsorption capacity of 384.6 mg g−1 and a removal efficiency of 91.5% at a small dose of nanoadsorbent.

Optimization, isotherm, and kinetic studies of diclofenac removal from aqueous solutions by Fe–Mn binary oxide adsorbents

2019 ◽  
Vol 26 (31) ◽  
pp. 32407-32419 ◽  
Author(s):  
Benny Marie B. Ensano ◽  
Mark Daniel G. de Luna ◽  
Kim Katrina P. Rivera ◽  
Sheila Mae B. Pingul-Ong ◽  
Dennis C. Ong
Keyword(s):  
Aqueous Solutions ◽  
Kinetic Studies ◽  
Binary Oxide

scholarly journals Adsorption of Cu(II) and Cd(II) from aqueous solutions by ferromanganese binary oxide–biochar composites

2018 ◽  
Vol 615 ◽  
pp. 115-122 ◽  
Author(s):  
Qiwen Zhou ◽  
Bohan Liao ◽  
Lina Lin ◽  
Weiwen Qiu ◽  
Zhengguo Song
Keyword(s):  
Aqueous Solutions ◽  
Binary Oxide

Ammonium removal from aqueous solutions by reverse osmosis using cellulose acetate membranes

Desalination ◽  
2005 ◽  
Vol 184 (1-3) ◽  
pp. 149-155 ◽  
Author(s):  
Antonio Bódalo ◽  
José-Luis Gómez ◽  
Elisa Gómez ◽  
Gerardo León ◽  
María Tejera
Keyword(s):  
Aqueous Solutions ◽  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Ammonium Removal ◽  
Cellulose Acetate Membranes

Removal of ammonium from aqueous solutions using the residue obtained from struvite pyrogenation

2011 ◽  
Vol 64 (12) ◽  
pp. 2508-2514 ◽  
Author(s):  
Haiming Huang ◽  
Qianwu Song ◽  
Chunlian Xu
Keyword(s):  
Aqueous Solutions ◽  
Experimental Results ◽  
Synthetic Wastewater ◽  
Ammonium Concentration ◽  
Ammonium Removal ◽  
Optimum Ph ◽  
Series Of Experiments ◽  
Release Ratio ◽  
Phosphate Source ◽  
The Cost

This paper reports the results of laboratory studies on the removal of ammonium from aqueous solutions using struvite pyrogenation residues. A series of experiments were conducted to examine the effects of the pyrogenation temperature (90–210 °C) and time (0.5–4 h) on the ammonium release of struvite. In addition, the pyrolysate of struvite produced at different pyrogenation temperatures and times was recycled for ammonium removal from aqueous solutions. The experimental results indicated that the ammonium release ratio of struvite increased with an increase in the pyrogenation temperature and time, and the struvite pyrolysate used as magnesium and phosphate source for ammonium removal was produced at the optimal condition of pyrogenation temperature of 150 °C for 1 h. Furthermore, experimental results showed that the optimum pH and pyrolysate dosage for ammonium removal from 100 ml synthetic wastewater (1,350 mg ammonium/L) were at pH 9 and 2.4 g of struvite pyrolysate, respectively, and initial ammonium concentration played a significant role in the ammonium removal by the struvite pyrolysate. In order to further reduce the cost of struvite precipitation, the struvite pyrolysate was repeatedly used for four cycles. The results of economic analysis showed that recycling struvite for three process cycles should be reasonable for ammonium removal, with ammonium removal efficiencies of over 50% and a reduction of 40% in the removal cost per kg NH4+.

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