Porous metakaolin-based geopolymer granules for removal of ammonium in aqueous solution and anaerobically pretreated piggery wastewater

Sanguanpak, Samunya; Wannagon, Anucha; Saengam, Chitsuphang; Chiemchaisri, Wilai; Chiemchaisri, Chart

doi:10.1016/j.jclepro.2021.126643

Cited by 50 publications

(16 citation statements)

References 29 publications

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“…The ammonium concentration in the permeate increased during the first 30 min and stabilized to a value of ~40 mg L -1 corresponding to ~50 % rejection. However, the retentate ammonium concentration was higher than the initial concentration only for the first 30 min, which implies that ammonium was not rejected by the membrane but likely uptaken to the membrane structure via cation exchange (Franchin et al, 2020;Luukkonen et al, 2018bLuukkonen et al, , 2017aSanguanpak et al, 2021). Thus, the low-Ca membrane could be used as an ion-exchange membrane (Xu, 2005).…”

Section: Ammonium Separation Experimentsmentioning

confidence: 99%

Ceramic-like membranes without sintering via alkali activation of metakaolin, blast furnace slag, or their mixture: Characterization and cation-exchange properties

Luukkonen

Olsen

Turkki

et al. 2023

Ceramics International

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Section: Ammonium Separation Experimentsmentioning

confidence: 99%

Ceramic-like membranes without sintering via alkali activation of metakaolin, blast furnace slag, or their mixture: Characterization and cation-exchange properties

Luukkonen

Olsen

Turkki

et al. 2023

Ceramics International

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“…Experiments were conducted in municipal wastewater treatment plants on a pilot basis, and the NH 4 + effluent concentration was always maintained at 4 mg/L at a water temperature of 10 °C [ 89 ]. The application of geopolymer adsorbent materials for NH 4 + removal from waste leachate and NH 4 + removal from piggery wastewater has also been investigated [ 90 , 91 ]. This work indicates that the porous ground polymer particles have high selectivity for NH 4 + even in the presence of organic compounds and competing ions [ 91 ].…”

Section: Application Of Geopolymers In Adsorptionmentioning

confidence: 99%

“…The application of geopolymer adsorbent materials for NH 4 + removal from waste leachate and NH 4 + removal from piggery wastewater has also been investigated [ 90 , 91 ]. This work indicates that the porous ground polymer particles have high selectivity for NH 4 + even in the presence of organic compounds and competing ions [ 91 ]. The geopolymer adsorbent could capture the anionic surfactant sodium dodecyl benzene sulfonate, similarly to the above-mentioned adsorption process, which the adsorption is chemical and physical at the same time [ 75 ].…”

Section: Application Of Geopolymers In Adsorptionmentioning

confidence: 99%

Research and Application Progress of Geopolymers in Adsorption: A Review

Zhao

et al. 2022

Nanomaterials

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Geopolymer is a porous inorganic material with a three-dimensional mesh structure, good mechanical properties, a simple preparation process (no sintering) and a low economic cost, and it is environmentally friendly. Geopolymer concrete has been widely used in the construction field, and many other studies have revealed that geopolymer will become one of the most promising inorganic materials with unique structure and properties. This paper provides a review of the development and current status of geopolymers and briefly explains the effects of material proportioning, experimental factors and activators on geopolymer performance. Because of the advantages of high specific surface area and high porosity, geopolymers could be used as adsorbent materials. This paper summarizes the research progresses of the adsorption of metal cations, anions, dyes, and gases by geopolymers, which emphasizes the geopolymer membranes in adsorption, and discusses the challenges and opportunities for the development of more efficient, sustainable and practical adsorption protocols.

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“…Significantly, the unique porous structure of geopolymers and the existence of negative charges on the aluminum-tetrahedra of the resulting gels, they can efficiently and successfully absorb metal ions, namely, Pb +2 , Cu +2 , Cd +2 , Mg +2 , Hg +2 , Cr +3 , etc. [ 122 , 123 , 124 , 125 , 126 , 127 ].…”

Section: Applications Of Geopolymers For Water and Wastewater Treatmentmentioning

confidence: 99%

A State-of-the-Art Review on Innovative Geopolymer Composites Designed for Water and Wastewater Treatment

Luhar

Abdullah

et al. 2021

Materials

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There is nothing more fundamental than clean potable water for living beings next to air. On the other hand, wastewater management is cropping up as a challenging task day-by-day due to lots of new additions of novel pollutants as well as the development of infrastructures and regulations that could not maintain its pace with the burgeoning escalation of populace and urbanizations. Therefore, momentous approaches must be sought-after to reclaim fresh water from wastewaters in order to address this great societal challenge. One of the routes is to clean wastewater through treatment processes using diverse adsorbents. However, most of them are unsustainable and quite costly e.g. activated carbon adsorbents, etc. Quite recently, innovative, sustainable, durable, affordable, user and eco-benevolent Geopolymer composites have been brought into play to serve the purpose as a pretty novel subject matter since they can be manufactured by a simple process of Geopolymerization at low temperature, lower energy with mitigated carbon footprints and marvellously, exhibit outstanding properties of physical and chemical stability, ion-exchange, dielectric characteristics, etc., with a porous structure and of course lucrative too because of the incorporation of wastes with them, which is in harmony with the goal to transit from linear to circular economy, i.e., “one’s waste is the treasure for another”. For these reasons, nowadays, this ground-breaking inorganic class of amorphous alumina-silicate materials are drawing the attention of the world researchers for designing them as adsorbents for water and wastewater treatment where the chemical nature and structure of the materials have a great impact on their adsorption competence. The aim of the current most recent state-of-the-art and scientometric review is to comprehend and assess thoroughly the advancements in geo-synthesis, properties and applications of geopolymer composites designed for the elimination of hazardous contaminants viz., heavy metal ions, dyes, etc. The adsorption mechanisms and effects of various environmental conditions on adsorption efficiency are also taken into account for review of the importance of Geopolymers as most recent adsorbents to get rid of the death-defying and toxic pollutants from wastewater with a view to obtaining reclaimed potable and sparkling water for reuse offering to trim down the massive crisis of scarcity of water promoting sustainable water and wastewater treatment for greener environments. The appraisal is made on the performance estimation of Geopolymers for water and wastewater treatment along with the three-dimensional printed components are characterized for mechanical, physical and chemical attributes, permeability and Ammonium (NH4+) ion removal competence of Geopolymer composites as alternative adsorbents for sequestration of an assortment of contaminants during wastewater treatment.

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Porous metakaolin-based geopolymer granules for removal of ammonium in aqueous solution and anaerobically pretreated piggery wastewater

Cited by 50 publications

References 29 publications

Ceramic-like membranes without sintering via alkali activation of metakaolin, blast furnace slag, or their mixture: Characterization and cation-exchange properties

Ceramic-like membranes without sintering via alkali activation of metakaolin, blast furnace slag, or their mixture: Characterization and cation-exchange properties

Research and Application Progress of Geopolymers in Adsorption: A Review

A State-of-the-Art Review on Innovative Geopolymer Composites Designed for Water and Wastewater Treatment

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