The investigation into the adsorption removal of ammonium by natural and modified zeolites : kinetics, isotherms, and thermodynamics
The objectives of this study were to modify Chinese natural zeolite by NaCl and to investigate its suitability as a low-cost clay adsorbent to remove ammonium from aqueous solution. The effect of pH on ammonium removal was investigated by batch experiments. The findings indicated that pH has a signi...
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| Veröffentlicht in: | Water S. A. 2019-10, Vol.45 (4), p.648-656 |
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| creator | Zhang, Mingchuan Chen, Tong Zhao, Xuetong Pan, Min Deng, Tianran Zou, Xuehua Huang, Xiaoming |
| description | The objectives of this study were to modify Chinese natural zeolite by NaCl and to investigate its suitability as a low-cost clay adsorbent to remove ammonium from aqueous solution. The effect of pH on ammonium removal was investigated by batch experiments. The findings indicated that pH has a significant effect on the removal of ammonium by M-Zeo and maximum adsorption occured at pH 8. Ion exchange dominated the ammonium adsorption process at neutral pH, with the order of exchange selectivity being Na+ > Ca2+ > K+ > Mg2 +. The Freundlich model provided a better description of the adsorption process than the Langmuir model. The maximum ammonium adsorption capacity was 17.83 mg/g for M-Zeo at 293K. Considering the adsorption isotherms and thermodynamic studies, the adsorption of ammonium by M-Zeo was endothermic and spontaneous chemisorption. Kinetic studies indicated that the adsorption of ammonium onto M-Zeo is well fitted by the pseudo-second-order kinetic model. Ea in the Arrhenius equation suggested the adsorption of ammonium on M-Zeo was a fast and diffusion-controlled process. The regeneration rate was 90.61% after 5 cycles. The removal of ammonium from real wastewater was carried out, and the removal efficiency was up to 99.13%. Thus, due to its cost-effectiveness and high adsorption capacity, M-Zeo has potential for use in ammonium removal from aqueous solutions. |
| doi_str_mv | 10.17159/wsa/2019.v45.i4.7546 |
| format | Article |
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The effect of pH on ammonium removal was investigated by batch experiments. The findings indicated that pH has a significant effect on the removal of ammonium by M-Zeo and maximum adsorption occured at pH 8. Ion exchange dominated the ammonium adsorption process at neutral pH, with the order of exchange selectivity being Na+ > Ca2+ > K+ > Mg2 +. The Freundlich model provided a better description of the adsorption process than the Langmuir model. The maximum ammonium adsorption capacity was 17.83 mg/g for M-Zeo at 293K. Considering the adsorption isotherms and thermodynamic studies, the adsorption of ammonium by M-Zeo was endothermic and spontaneous chemisorption. Kinetic studies indicated that the adsorption of ammonium onto M-Zeo is well fitted by the pseudo-second-order kinetic model. Ea in the Arrhenius equation suggested the adsorption of ammonium on M-Zeo was a fast and diffusion-controlled process. The regeneration rate was 90.61% after 5 cycles. The removal of ammonium from real wastewater was carried out, and the removal efficiency was up to 99.13%. Thus, due to its cost-effectiveness and high adsorption capacity, M-Zeo has potential for use in ammonium removal from aqueous solutions.</description><identifier>ISSN: 0378-4738</identifier><identifier>ISSN: 1816-7950</identifier><identifier>EISSN: 1816-7950</identifier><identifier>DOI: 10.17159/wsa/2019.v45.i4.7546</identifier><language>eng</language><publisher>Gezina: Water Research Commission (WRC)</publisher><subject>Adsorbent ; Adsorbents ; Adsorption ; Ammonium ; Ammonium compounds ; Ammonium nitrogen ; Analysis ; Aqueous solutions ; Calcium ; Calcium ions ; Chemisorption ; Chlorides ; Clay ; Diffusion rate ; Investigations ; Ion exchange ; Isotherms ; Kinetics ; Magnesium ; Nitrogen ; Organic chemistry ; pH effects ; Regeneration ; Regeneration (biological) ; Removal ; Selectivity ; Sodium chloride ; Sodium chloride modified ; Studies ; Thermal properties ; Thermodynamics ; Wastewater ; Water treatment ; Zeolite ; Zeolites</subject><ispartof>Water S. A., 2019-10, Vol.45 (4), p.648-656</ispartof><rights>COPYRIGHT 2019 Water Research Commission</rights><rights>2019. This work is published under NOCC (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c539t-ff817289e14f9b82a88d4c9253372221ed7ee327cd0168298ea4c92a69d830d63</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27923,27924,39241</link.rule.ids></links><search><creatorcontrib>Zhang, Mingchuan</creatorcontrib><creatorcontrib>Chen, Tong</creatorcontrib><creatorcontrib>Zhao, Xuetong</creatorcontrib><creatorcontrib>Pan, Min</creatorcontrib><creatorcontrib>Deng, Tianran</creatorcontrib><creatorcontrib>Zou, Xuehua</creatorcontrib><creatorcontrib>Huang, Xiaoming</creatorcontrib><title>The investigation into the adsorption removal of ammonium by natural and modified zeolites : kinetics, isotherms, and thermodynamics</title><title>Water S. A.</title><description>The objectives of this study were to modify Chinese natural zeolite by NaCl and to investigate its suitability as a low-cost clay adsorbent to remove ammonium from aqueous solution. The effect of pH on ammonium removal was investigated by batch experiments. The findings indicated that pH has a significant effect on the removal of ammonium by M-Zeo and maximum adsorption occured at pH 8. Ion exchange dominated the ammonium adsorption process at neutral pH, with the order of exchange selectivity being Na+ > Ca2+ > K+ > Mg2 +. The Freundlich model provided a better description of the adsorption process than the Langmuir model. The maximum ammonium adsorption capacity was 17.83 mg/g for M-Zeo at 293K. Considering the adsorption isotherms and thermodynamic studies, the adsorption of ammonium by M-Zeo was endothermic and spontaneous chemisorption. Kinetic studies indicated that the adsorption of ammonium onto M-Zeo is well fitted by the pseudo-second-order kinetic model. Ea in the Arrhenius equation suggested the adsorption of ammonium on M-Zeo was a fast and diffusion-controlled process. The regeneration rate was 90.61% after 5 cycles. The removal of ammonium from real wastewater was carried out, and the removal efficiency was up to 99.13%. Thus, due to its cost-effectiveness and high adsorption capacity, M-Zeo has potential for use in ammonium removal from aqueous solutions.</description><subject>Adsorbent</subject><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Ammonium</subject><subject>Ammonium compounds</subject><subject>Ammonium nitrogen</subject><subject>Analysis</subject><subject>Aqueous solutions</subject><subject>Calcium</subject><subject>Calcium ions</subject><subject>Chemisorption</subject><subject>Chlorides</subject><subject>Clay</subject><subject>Diffusion rate</subject><subject>Investigations</subject><subject>Ion exchange</subject><subject>Isotherms</subject><subject>Kinetics</subject><subject>Magnesium</subject><subject>Nitrogen</subject><subject>Organic chemistry</subject><subject>pH effects</subject><subject>Regeneration</subject><subject>Regeneration (biological)</subject><subject>Removal</subject><subject>Selectivity</subject><subject>Sodium chloride</subject><subject>Sodium chloride modified</subject><subject>Studies</subject><subject>Thermal properties</subject><subject>Thermodynamics</subject><subject>Wastewater</subject><subject>Water treatment</subject><subject>Zeolite</subject><subject>Zeolites</subject><issn>0378-4738</issn><issn>1816-7950</issn><issn>1816-7950</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>JRA</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNotUU1v1DAQjRBILKU_oZIlriT1RxzbXFC1aqGoEpdytryx03VJ7GA7i5YzP7yT3coHz7yZN2O_V1VXBDdEEK6u_2ZzTTFRzaHljW8bwdvuTbUhknS1UBy_rTaYCVm3gsn31YecnzGmjLVqU_1_3Dvkw8Hl4p9M8TFAViIqABubY5pPWHJTPJgRxQGZaYrBLxPaHVEwZUkAm2DRFK0fvLPon4ujLy6jL-i3D674Pn9GPkcYmSYI1-ZTHO0xmAnKH6t3gxmzu3y9L6pfd7eP2-_1w89v99ubh7rnTJV6GCQRVCpH2kHtJDVS2rZXlDMmKKXEWeEco6K3mHSSKunMWjadspJh27GL6tN57pzinwW-rJ_jkgKs1JSRjgnFqIKu5tz1ZEanfRhiSaaHYx08NgY3eMBvOspBW4kZEPiZ0KeYc3KDnpOfTDpqgvXJIQ0O6dUhDQ5p3-rVIeB9PfOy2a1C6WzcvOz0vpQ5670d9R60gl1rjWBOsb79sdVEGStbrphlLypsnbk</recordid><startdate>20191001</startdate><enddate>20191001</enddate><creator>Zhang, Mingchuan</creator><creator>Chen, Tong</creator><creator>Zhao, Xuetong</creator><creator>Pan, Min</creator><creator>Deng, Tianran</creator><creator>Zou, Xuehua</creator><creator>Huang, Xiaoming</creator><general>Water Research Commission (WRC)</general><general>Water Research Commission</general><scope>AEIZH</scope><scope>JRA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7ST</scope><scope>7T7</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H97</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>LK8</scope><scope>M2O</scope><scope>M2P</scope><scope>M7P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P64</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope></search><sort><creationdate>20191001</creationdate><title>The investigation into the adsorption removal of ammonium by natural and modified zeolites : kinetics, isotherms, and thermodynamics</title><author>Zhang, Mingchuan ; Chen, Tong ; Zhao, Xuetong ; Pan, Min ; Deng, Tianran ; Zou, Xuehua ; Huang, Xiaoming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c539t-ff817289e14f9b82a88d4c9253372221ed7ee327cd0168298ea4c92a69d830d63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adsorbent</topic><topic>Adsorbents</topic><topic>Adsorption</topic><topic>Ammonium</topic><topic>Ammonium compounds</topic><topic>Ammonium nitrogen</topic><topic>Analysis</topic><topic>Aqueous solutions</topic><topic>Calcium</topic><topic>Calcium ions</topic><topic>Chemisorption</topic><topic>Chlorides</topic><topic>Clay</topic><topic>Diffusion rate</topic><topic>Investigations</topic><topic>Ion exchange</topic><topic>Isotherms</topic><topic>Kinetics</topic><topic>Magnesium</topic><topic>Nitrogen</topic><topic>Organic chemistry</topic><topic>pH effects</topic><topic>Regeneration</topic><topic>Regeneration (biological)</topic><topic>Removal</topic><topic>Selectivity</topic><topic>Sodium chloride</topic><topic>Sodium chloride modified</topic><topic>Studies</topic><topic>Thermal properties</topic><topic>Thermodynamics</topic><topic>Wastewater</topic><topic>Water treatment</topic><topic>Zeolite</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Mingchuan</creatorcontrib><creatorcontrib>Chen, Tong</creatorcontrib><creatorcontrib>Zhao, Xuetong</creatorcontrib><creatorcontrib>Pan, Min</creatorcontrib><creatorcontrib>Deng, Tianran</creatorcontrib><creatorcontrib>Zou, Xuehua</creatorcontrib><creatorcontrib>Huang, Xiaoming</creatorcontrib><collection>Sabinet:Open Access</collection><collection>Sabinet African Journals Open Access Collection</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>Middle East & Africa Database</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><jtitle>Water S. A.</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Mingchuan</au><au>Chen, Tong</au><au>Zhao, Xuetong</au><au>Pan, Min</au><au>Deng, Tianran</au><au>Zou, Xuehua</au><au>Huang, Xiaoming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The investigation into the adsorption removal of ammonium by natural and modified zeolites : kinetics, isotherms, and thermodynamics</atitle><jtitle>Water S. A.</jtitle><date>2019-10-01</date><risdate>2019</risdate><volume>45</volume><issue>4</issue><spage>648</spage><epage>656</epage><pages>648-656</pages><issn>0378-4738</issn><issn>1816-7950</issn><eissn>1816-7950</eissn><abstract>The objectives of this study were to modify Chinese natural zeolite by NaCl and to investigate its suitability as a low-cost clay adsorbent to remove ammonium from aqueous solution. The effect of pH on ammonium removal was investigated by batch experiments. The findings indicated that pH has a significant effect on the removal of ammonium by M-Zeo and maximum adsorption occured at pH 8. Ion exchange dominated the ammonium adsorption process at neutral pH, with the order of exchange selectivity being Na+ > Ca2+ > K+ > Mg2 +. The Freundlich model provided a better description of the adsorption process than the Langmuir model. The maximum ammonium adsorption capacity was 17.83 mg/g for M-Zeo at 293K. Considering the adsorption isotherms and thermodynamic studies, the adsorption of ammonium by M-Zeo was endothermic and spontaneous chemisorption. Kinetic studies indicated that the adsorption of ammonium onto M-Zeo is well fitted by the pseudo-second-order kinetic model. Ea in the Arrhenius equation suggested the adsorption of ammonium on M-Zeo was a fast and diffusion-controlled process. The regeneration rate was 90.61% after 5 cycles. The removal of ammonium from real wastewater was carried out, and the removal efficiency was up to 99.13%. Thus, due to its cost-effectiveness and high adsorption capacity, M-Zeo has potential for use in ammonium removal from aqueous solutions.</abstract><cop>Gezina</cop><pub>Water Research Commission (WRC)</pub><doi>10.17159/wsa/2019.v45.i4.7546</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorbent Adsorbents Adsorption Ammonium Ammonium compounds Ammonium nitrogen Analysis Aqueous solutions Calcium Calcium ions Chemisorption Chlorides Clay Diffusion rate Investigations Ion exchange Isotherms Kinetics Magnesium Nitrogen Organic chemistry pH effects Regeneration Regeneration (biological) Removal Selectivity Sodium chloride Sodium chloride modified Studies Thermal properties Thermodynamics Wastewater Water treatment Zeolite Zeolites |
| title | The investigation into the adsorption removal of ammonium by natural and modified zeolites : kinetics, isotherms, and thermodynamics |
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