Ammonia recovery from brines originating from a municipal wastewater ion exchange process and valorization of recovered nitrogen into microbial protein

Guida, Samuela; Peteghem, Lotte Van; Luqmani, B.; Sakarika, Myrsini; McLeod, Andrew J.; McAdam, Ewan J.; Jefferson, Bruce; Rabaey, Korneel; Soares, Ana

doi:10.1016/j.cej.2021.130896

Cited by 34 publications

(13 citation statements)

References 61 publications

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“…Therefore, as a consequence, their removal from aquatic environments is important and the target of numerous scientific studies [ 7 , 8 , 9 ]. Chemical precipitation [ 10 ], flocculation/coagulation [ 11 , 12 ], membrane technology [ 13 ], oxidation technology [ 14 ], electrolytic reduction [ 15 ], ion exchange [ 16 ], and biological adsorption [ 17 , 18 , 19 , 20 ] are developed methods for dyes and pollutant removal from water/wastewater. Recently, the adsorption process has been one of the most commonly used procedures for dye removal due to its simplicity and high efficacy, as well as the suitability of the use of a wide range of adsorbents [ 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles and Their Application in Adsorption of Toxic Dye from Aqueous Solution

Al-Arjan

2022

Polymers

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Dye waste is one of the most serious types of pollution in natural water bodies, since its presence can be easily detected by the naked eye, and it is not easily biodegradable. In this study, zinc oxide nanoparticles (ZnO-NPs) were generated using a chemical reduction approach involving the zinc nitrate procedure. Fourier transform infrared (FTIR), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), and UV-vis techniques were used to analyse the surface of ZnO-NPs. The results indicate the creation of ZnO-NPs with a surface area of 95.83 m2 g−1 and a pore volume of 0.058 cm3 g−1, as well as an average pore size of 1.22 nm. In addition, the ZnO-NPs were used as an adsorbent for the removal of Ismate violet 2R (IV2R) dye from aqueous solutions under various conditions (dye concentration, pH, contact time, temperature, and adsorbent dosage) using a batch adsorption technique. Furthermore, FTIR and SEM examinations performed before and after the adsorption process indicated that the surface functionalisation and shape of the ZnO-NP nanocomposites changed significantly. A batch adsorption analysis was used to examine the extent to which operating parameters, the equilibrium isotherm, adsorption kinetics, and thermodynamics affected the results. The results of the batch technique revealed that the best results were obtained in the treatment with 0.04 g of ZnO-NP nanoparticles at 30 °C and pH 2 with an initial dye concentration of 10 mg L−1, which removed 91.5% and 65.6% of dye from synthetic and textile industry effluents, respectively. Additionally, six adsorption isotherm models were investigated by mathematical modelling and were validated for the adsorption process, and error function equations were applied to the isotherm model results in order to find the best-fit isotherm model. Likewise, the pseudo-second-order kinetic model fit well. A thermodynamic study revealed that IV2R adsorption on ZnO-NPs is a spontaneous, endothermic, and feasible sorption process. Finally, the synthesised nanocomposites prove to be excellent candidates for IV2R removal from water and real wastewater systems.

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Section: Introductionmentioning

confidence: 99%

Zinc Oxide Nanoparticles and Their Application in Adsorption of Toxic Dye from Aqueous Solution

Al-Arjan

2022

Polymers

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“…With the global demands for NH 3 -N reaching an all-time high, the amounts of these nitrogenous compounds generated during the hydrothermal deconstruction of different PPE items can be extracted from the final reaction mixture and reutilised for commercial benefits. With the global demand for NH 3 -N as a fertiliser expected to hit 190 million tonnes by the end of 2022 ( FAO, 2019 ), the NH 3 -N generated during the hydrothermal deconstruction of PPE waste can be recovered via numerous technologies such as absorption, air stripping, membrane distillation, reverse osmosis, ion exchange, hollow fiber membrane contactor and electrodialysis to fulfil the high production needs ( Chen et al, 2021 , Guida et al, 2022 ).…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal deconstruction of single-use personal protective equipment during the COVID-19 pandemic

Javid

Xin²,

Derraik³

et al. 2022

Waste Management

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“…or electrochemical system [13,40,41]. It is a sustainable and efficient alternative to recycling nutrients in waste streams as feed and food and provides some new ideas.…”

Section: Significance and Perspectivementioning

confidence: 99%

Microbial conversion of syngas to single cell protein: The role of carbon monoxide

Jiang

Yang²,

Zeng³

et al. 2022

Chemical Engineering Journal

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Ammonia recovery from brines originating from a municipal wastewater ion exchange process and valorization of recovered nitrogen into microbial protein

Cited by 34 publications

References 61 publications

Zinc Oxide Nanoparticles and Their Application in Adsorption of Toxic Dye from Aqueous Solution

Zinc Oxide Nanoparticles and Their Application in Adsorption of Toxic Dye from Aqueous Solution

Hydrothermal deconstruction of single-use personal protective equipment during the COVID-19 pandemic

Microbial conversion of syngas to single cell protein: The role of carbon monoxide

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