Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal
Raw palygorskite (Pal) samples went under acid (H‐Pal), NaCl (Na‐Pal), and CaCl2 treatment (Ca‐Pal) in order to be examined as ammonium (NH4+) sorbents from aqueous solutions. The samples were characterized by XRD and FT‐IR techniques to examine potential structural differences after modifications,...
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| Veröffentlicht in: | Water environment research 2021-10, Vol.93 (10), p.1979-1994 |
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| container_issue | 10 |
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| container_title | Water environment research |
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| creator | Gianni, Eleni Lazaratou, Christina Vasiliki Panagopoulos, Georgios Sarantari, Panagiota Martsouka, Fotini Papagiannopoulos, Konstantinos Panagiotaras, Dionisios Papoulis, Dimitrios |
| description | Raw palygorskite (Pal) samples went under acid (H‐Pal), NaCl (Na‐Pal), and CaCl2 treatment (Ca‐Pal) in order to be examined as ammonium (NH4+) sorbents from aqueous solutions. The samples were characterized by XRD and FT‐IR techniques to examine potential structural differences after modifications, and batch kinetic experiment series were applied to determine the optimal conditions for NH4+ removal. According to thermodynamic analysis, the removal reaction for sodium‐ and calcium‐treated samples was endothermic (ΔΗ0 > 0, 1.65 kJ/mol and 24.66 kJ/mol, respectively), in contrast with the exothermic reactions of raw and acidic‐treated palygorskite samples (ΔΗ0 |
| doi_str_mv | 10.1002/wer.1570 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2511245896</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2511245896</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3490-b98dfce11a5ad0ac5c52730934d8aa45845072c9f4d123b1f0b5f9402229bde3</originalsourceid><addsrcrecordid>eNp1kN1K3EAUgIei1NUWfIIy4I030fndJJeyrFoQCrLQy3AyP2U0k0lnEsPe-Qg-o0_SWde2UOjVOXA-Pg4fQqeUXFBC2OVs4gWVJfmAFlRKUZSS04O8kyUtBCf8CB2n9EAIZYyIj-iI84rLZSkXyN7DjKHX2AftrDMaD9Btf4SYHt1osOvxDKOJeIwGRm_6EcMwdE7B6EKfsA0Rd2F-fX5RoVf5HN8OGLwPvZs8jsaHJ-g-oUMLXTKf3-cJ2lyvN6vb4u7bzdfV1V2huKhJ0daVtspQChI0ASWVZCUnNRe6AhCyEpKUTNVWaMp4Sy1ppa0FYYzVrTb8BJ3vtUMMPyeTxsa7pEzXQW_ClBomKWVZUy8zevYP-hCm2OfnMlUxLmtZsr9CFUNK0dhmiM5D3DaUNLv0TU7f7NJn9Mu7cGq90X_A360zUOyB2XVm-19R8319_yb8Bey1jwY</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2582359572</pqid></control><display><type>article</type><title>Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal</title><source>Wiley Online Library - AutoHoldings Journals</source><creator>Gianni, Eleni ; Lazaratou, Christina Vasiliki ; Panagopoulos, Georgios ; Sarantari, Panagiota ; Martsouka, Fotini ; Papagiannopoulos, Konstantinos ; Panagiotaras, Dionisios ; Papoulis, Dimitrios</creator><creatorcontrib>Gianni, Eleni ; Lazaratou, Christina Vasiliki ; Panagopoulos, Georgios ; Sarantari, Panagiota ; Martsouka, Fotini ; Papagiannopoulos, Konstantinos ; Panagiotaras, Dionisios ; Papoulis, Dimitrios</creatorcontrib><description>Raw palygorskite (Pal) samples went under acid (H‐Pal), NaCl (Na‐Pal), and CaCl2 treatment (Ca‐Pal) in order to be examined as ammonium (NH4+) sorbents from aqueous solutions. The samples were characterized by XRD and FT‐IR techniques to examine potential structural differences after modifications, and batch kinetic experiment series were applied to determine the optimal conditions for NH4+ removal. According to thermodynamic analysis, the removal reaction for sodium‐ and calcium‐treated samples was endothermic (ΔΗ0 > 0, 1.65 kJ/mol and 24.66 kJ/mol, respectively), in contrast with the exothermic reactions of raw and acidic‐treated palygorskite samples (ΔΗ0 < 0, −37.18 kJ/mol and −27.56 kJ/mol respectively). Moreover, each sample presented a different order of sorbed ions preference, whereas the strong affinity for Ca2+ sorption was common in all cases since the NH4+ removal inhibited. Nevertheless, a similar pattern was followed for raw and modified samples at isotherm study, rendering the linear form of Freundlich isotherm to express better the NH4+ sorption on palygorskite sample, indicating that it is a heterogeneous procedure. In all cases, the NH4+ maximum uptake was within 15 min using 8 g/L of each sorbent, especially for the Na‐Pal sample, which could reach almost 100% removal of low concentration NH4+.
Practitioner Points
Modified palygorskite samples were tested for NH4+ removal from aqueous solutions.
NaCl‐treated palygorskite had the higher removal efficiency, which could reach almost 100% removal of low concentration NH4+.
NH4+ maximum uptake was within 15 minutes using 8 g/L of each sorbent.
NH4+ adsorption was an endothermic reaction for NaCl‐ and CaCl2‐treated palygorskite sorbents.
NH4+ adsorption was an exothermic reaction for raw and acid‐treated palygorskite sorbents.
Raw and modified palygorskite samples for ammonium removal in water treatment.</description><identifier>ISSN: 1061-4303</identifier><identifier>EISSN: 1554-7531</identifier><identifier>DOI: 10.1002/wer.1570</identifier><identifier>PMID: 33835675</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Adsorption ; Ammonium ; Ammonium compounds ; Aqueous solutions ; Calcium ; Calcium chloride ; Calcium ions ; Endothermic reactions ; Exothermic reactions ; Isotherms ; modified palygorskite ; Palygorskite ; Removal ; Sodium ; Sodium chloride ; Sorbents ; Sorption ; Uptake ; Water treatment</subject><ispartof>Water environment research, 2021-10, Vol.93 (10), p.1979-1994</ispartof><rights>2021 Water Environment Federation</rights><rights>2021 Water Environment Federation.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3490-b98dfce11a5ad0ac5c52730934d8aa45845072c9f4d123b1f0b5f9402229bde3</citedby><cites>FETCH-LOGICAL-c3490-b98dfce11a5ad0ac5c52730934d8aa45845072c9f4d123b1f0b5f9402229bde3</cites><orcidid>0000-0001-6008-8014</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fwer.1570$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fwer.1570$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33835675$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gianni, Eleni</creatorcontrib><creatorcontrib>Lazaratou, Christina Vasiliki</creatorcontrib><creatorcontrib>Panagopoulos, Georgios</creatorcontrib><creatorcontrib>Sarantari, Panagiota</creatorcontrib><creatorcontrib>Martsouka, Fotini</creatorcontrib><creatorcontrib>Papagiannopoulos, Konstantinos</creatorcontrib><creatorcontrib>Panagiotaras, Dionisios</creatorcontrib><creatorcontrib>Papoulis, Dimitrios</creatorcontrib><title>Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal</title><title>Water environment research</title><addtitle>Water Environ Res</addtitle><description>Raw palygorskite (Pal) samples went under acid (H‐Pal), NaCl (Na‐Pal), and CaCl2 treatment (Ca‐Pal) in order to be examined as ammonium (NH4+) sorbents from aqueous solutions. The samples were characterized by XRD and FT‐IR techniques to examine potential structural differences after modifications, and batch kinetic experiment series were applied to determine the optimal conditions for NH4+ removal. According to thermodynamic analysis, the removal reaction for sodium‐ and calcium‐treated samples was endothermic (ΔΗ0 > 0, 1.65 kJ/mol and 24.66 kJ/mol, respectively), in contrast with the exothermic reactions of raw and acidic‐treated palygorskite samples (ΔΗ0 < 0, −37.18 kJ/mol and −27.56 kJ/mol respectively). Moreover, each sample presented a different order of sorbed ions preference, whereas the strong affinity for Ca2+ sorption was common in all cases since the NH4+ removal inhibited. Nevertheless, a similar pattern was followed for raw and modified samples at isotherm study, rendering the linear form of Freundlich isotherm to express better the NH4+ sorption on palygorskite sample, indicating that it is a heterogeneous procedure. In all cases, the NH4+ maximum uptake was within 15 min using 8 g/L of each sorbent, especially for the Na‐Pal sample, which could reach almost 100% removal of low concentration NH4+.
Practitioner Points
Modified palygorskite samples were tested for NH4+ removal from aqueous solutions.
NaCl‐treated palygorskite had the higher removal efficiency, which could reach almost 100% removal of low concentration NH4+.
NH4+ maximum uptake was within 15 minutes using 8 g/L of each sorbent.
NH4+ adsorption was an endothermic reaction for NaCl‐ and CaCl2‐treated palygorskite sorbents.
NH4+ adsorption was an exothermic reaction for raw and acid‐treated palygorskite sorbents.
Raw and modified palygorskite samples for ammonium removal in water treatment.</description><subject>Adsorption</subject><subject>Ammonium</subject><subject>Ammonium compounds</subject><subject>Aqueous solutions</subject><subject>Calcium</subject><subject>Calcium chloride</subject><subject>Calcium ions</subject><subject>Endothermic reactions</subject><subject>Exothermic reactions</subject><subject>Isotherms</subject><subject>modified palygorskite</subject><subject>Palygorskite</subject><subject>Removal</subject><subject>Sodium</subject><subject>Sodium chloride</subject><subject>Sorbents</subject><subject>Sorption</subject><subject>Uptake</subject><subject>Water treatment</subject><issn>1061-4303</issn><issn>1554-7531</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kN1K3EAUgIei1NUWfIIy4I030fndJJeyrFoQCrLQy3AyP2U0k0lnEsPe-Qg-o0_SWde2UOjVOXA-Pg4fQqeUXFBC2OVs4gWVJfmAFlRKUZSS04O8kyUtBCf8CB2n9EAIZYyIj-iI84rLZSkXyN7DjKHX2AftrDMaD9Btf4SYHt1osOvxDKOJeIwGRm_6EcMwdE7B6EKfsA0Rd2F-fX5RoVf5HN8OGLwPvZs8jsaHJ-g-oUMLXTKf3-cJ2lyvN6vb4u7bzdfV1V2huKhJ0daVtspQChI0ASWVZCUnNRe6AhCyEpKUTNVWaMp4Sy1ppa0FYYzVrTb8BJ3vtUMMPyeTxsa7pEzXQW_ClBomKWVZUy8zevYP-hCm2OfnMlUxLmtZsr9CFUNK0dhmiM5D3DaUNLv0TU7f7NJn9Mu7cGq90X_A360zUOyB2XVm-19R8319_yb8Bey1jwY</recordid><startdate>202110</startdate><enddate>202110</enddate><creator>Gianni, Eleni</creator><creator>Lazaratou, Christina Vasiliki</creator><creator>Panagopoulos, Georgios</creator><creator>Sarantari, Panagiota</creator><creator>Martsouka, Fotini</creator><creator>Papagiannopoulos, Konstantinos</creator><creator>Panagiotaras, Dionisios</creator><creator>Papoulis, Dimitrios</creator><general>Blackwell Publishing Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>K9.</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-6008-8014</orcidid></search><sort><creationdate>202110</creationdate><title>Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal</title><author>Gianni, Eleni ; Lazaratou, Christina Vasiliki ; Panagopoulos, Georgios ; Sarantari, Panagiota ; Martsouka, Fotini ; Papagiannopoulos, Konstantinos ; Panagiotaras, Dionisios ; Papoulis, Dimitrios</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3490-b98dfce11a5ad0ac5c52730934d8aa45845072c9f4d123b1f0b5f9402229bde3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adsorption</topic><topic>Ammonium</topic><topic>Ammonium compounds</topic><topic>Aqueous solutions</topic><topic>Calcium</topic><topic>Calcium chloride</topic><topic>Calcium ions</topic><topic>Endothermic reactions</topic><topic>Exothermic reactions</topic><topic>Isotherms</topic><topic>modified palygorskite</topic><topic>Palygorskite</topic><topic>Removal</topic><topic>Sodium</topic><topic>Sodium chloride</topic><topic>Sorbents</topic><topic>Sorption</topic><topic>Uptake</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gianni, Eleni</creatorcontrib><creatorcontrib>Lazaratou, Christina Vasiliki</creatorcontrib><creatorcontrib>Panagopoulos, Georgios</creatorcontrib><creatorcontrib>Sarantari, Panagiota</creatorcontrib><creatorcontrib>Martsouka, Fotini</creatorcontrib><creatorcontrib>Papagiannopoulos, Konstantinos</creatorcontrib><creatorcontrib>Panagiotaras, Dionisios</creatorcontrib><creatorcontrib>Papoulis, Dimitrios</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Water environment research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gianni, Eleni</au><au>Lazaratou, Christina Vasiliki</au><au>Panagopoulos, Georgios</au><au>Sarantari, Panagiota</au><au>Martsouka, Fotini</au><au>Papagiannopoulos, Konstantinos</au><au>Panagiotaras, Dionisios</au><au>Papoulis, Dimitrios</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal</atitle><jtitle>Water environment research</jtitle><addtitle>Water Environ Res</addtitle><date>2021-10</date><risdate>2021</risdate><volume>93</volume><issue>10</issue><spage>1979</spage><epage>1994</epage><pages>1979-1994</pages><issn>1061-4303</issn><eissn>1554-7531</eissn><abstract>Raw palygorskite (Pal) samples went under acid (H‐Pal), NaCl (Na‐Pal), and CaCl2 treatment (Ca‐Pal) in order to be examined as ammonium (NH4+) sorbents from aqueous solutions. The samples were characterized by XRD and FT‐IR techniques to examine potential structural differences after modifications, and batch kinetic experiment series were applied to determine the optimal conditions for NH4+ removal. According to thermodynamic analysis, the removal reaction for sodium‐ and calcium‐treated samples was endothermic (ΔΗ0 > 0, 1.65 kJ/mol and 24.66 kJ/mol, respectively), in contrast with the exothermic reactions of raw and acidic‐treated palygorskite samples (ΔΗ0 < 0, −37.18 kJ/mol and −27.56 kJ/mol respectively). Moreover, each sample presented a different order of sorbed ions preference, whereas the strong affinity for Ca2+ sorption was common in all cases since the NH4+ removal inhibited. Nevertheless, a similar pattern was followed for raw and modified samples at isotherm study, rendering the linear form of Freundlich isotherm to express better the NH4+ sorption on palygorskite sample, indicating that it is a heterogeneous procedure. In all cases, the NH4+ maximum uptake was within 15 min using 8 g/L of each sorbent, especially for the Na‐Pal sample, which could reach almost 100% removal of low concentration NH4+.
Practitioner Points
Modified palygorskite samples were tested for NH4+ removal from aqueous solutions.
NaCl‐treated palygorskite had the higher removal efficiency, which could reach almost 100% removal of low concentration NH4+.
NH4+ maximum uptake was within 15 minutes using 8 g/L of each sorbent.
NH4+ adsorption was an endothermic reaction for NaCl‐ and CaCl2‐treated palygorskite sorbents.
NH4+ adsorption was an exothermic reaction for raw and acid‐treated palygorskite sorbents.
Raw and modified palygorskite samples for ammonium removal in water treatment.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>33835675</pmid><doi>10.1002/wer.1570</doi><tpages>0</tpages><orcidid>https://orcid.org/0000-0001-6008-8014</orcidid></addata></record> |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | Adsorption Ammonium Ammonium compounds Aqueous solutions Calcium Calcium chloride Calcium ions Endothermic reactions Exothermic reactions Isotherms modified palygorskite Palygorskite Removal Sodium Sodium chloride Sorbents Sorption Uptake Water treatment |
| title | Raw and modified palygorskite in water treatment applications for low‐concentration ammonium removal |
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