Ammonia nitrogen removal from aqueous solution using zeolite modified by microwave-sodium acetate
The characteristics of the zeolite modified by microwave and sodium acetate and its sorption of ammonia-nitrogen from simulated water sample were investigated. The results show that the modified zeolite by microwave-sodium acetate （SMMZ） has a high sorption efficiency and removal performance. The am...
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| Veröffentlicht in: | Journal of Central South University 2016-06, Vol.23 (6), p.1345-1352 |
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| creator | 董颖博 林海 |
| description | The characteristics of the zeolite modified by microwave and sodium acetate and its sorption of ammonia-nitrogen from simulated water sample were investigated. The results show that the modified zeolite by microwave-sodium acetate （SMMZ） has a high sorption efficiency and removal performance. The ammonia-nitrogen removal rate of SMMZ reaches 92.90%. The surface of SMMZ becomes loose and some pores appear, the specific surface area, total pore volume and average pore diameter increase after modification. Compared to the natural zeolite, SMMZ has a more concentrated pore size distribution in the range of 0？10 nm. The cation exchange capacity （CEC） of SMMZ is higher than that of the natural zeolite. And the ammonia nitrogen removal rate is consistent with the change of CEC. The SMMZ possesses rapid sorption and slow balance characteristics and ammonia-nitrogen sorption is consistent with both Langmuir adsorption isotherm model and Freundlich adsorption isotherm model. The adsorption kinetics of ammonia-nitrogen follows the pseudo-second order kinetic model. |
| doi_str_mv | 10.1007/s11771-016-3186-x |
| format | Article |
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The results show that the modified zeolite by microwave-sodium acetate （SMMZ） has a high sorption efficiency and removal performance. The ammonia-nitrogen removal rate of SMMZ reaches 92.90%. The surface of SMMZ becomes loose and some pores appear, the specific surface area, total pore volume and average pore diameter increase after modification. Compared to the natural zeolite, SMMZ has a more concentrated pore size distribution in the range of 0？10 nm. The cation exchange capacity （CEC） of SMMZ is higher than that of the natural zeolite. And the ammonia nitrogen removal rate is consistent with the change of CEC. The SMMZ possesses rapid sorption and slow balance characteristics and ammonia-nitrogen sorption is consistent with both Langmuir adsorption isotherm model and Freundlich adsorption isotherm model. The adsorption kinetics of ammonia-nitrogen follows the pseudo-second order kinetic model.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-016-3186-x</identifier><language>eng</language><publisher>Changsha: Central South University</publisher><subject>Chemical and Environmental Engineering ; Engineering ; Materials ; Metallic Materials ; Metallurgy ; 吸附性能 ; 微波 ; 改性沸石 ; 氨氮去除率 ; 水溶液 ; 等温吸附模型 ; 醋酸钠 ; 阳离子交换量</subject><ispartof>Journal of Central South University, 2016-06, Vol.23 (6), p.1345-1352</ispartof><rights>Central South University Press and Springer-Verlag Berlin Heidelberg 2016</rights><rights>Copyright © Wanfang Data Co. Ltd. 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Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>The characteristics of the zeolite modified by microwave and sodium acetate and its sorption of ammonia-nitrogen from simulated water sample were investigated. The results show that the modified zeolite by microwave-sodium acetate （SMMZ） has a high sorption efficiency and removal performance. The ammonia-nitrogen removal rate of SMMZ reaches 92.90%. The surface of SMMZ becomes loose and some pores appear, the specific surface area, total pore volume and average pore diameter increase after modification. Compared to the natural zeolite, SMMZ has a more concentrated pore size distribution in the range of 0？10 nm. The cation exchange capacity （CEC） of SMMZ is higher than that of the natural zeolite. And the ammonia nitrogen removal rate is consistent with the change of CEC. The SMMZ possesses rapid sorption and slow balance characteristics and ammonia-nitrogen sorption is consistent with both Langmuir adsorption isotherm model and Freundlich adsorption isotherm model. The adsorption kinetics of ammonia-nitrogen follows the pseudo-second order kinetic model.</description><subject>Chemical and Environmental Engineering</subject><subject>Engineering</subject><subject>Materials</subject><subject>Metallic Materials</subject><subject>Metallurgy</subject><subject>吸附性能</subject><subject>微波</subject><subject>改性沸石</subject><subject>氨氮去除率</subject><subject>水溶液</subject><subject>等温吸附模型</subject><subject>醋酸钠</subject><subject>阳离子交换量</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhQdRsGh_gLvgVqJ5NJlmWYovKLjRdUhm7oyRTmKTmb5-vSktunN1L5fz3XM4RXFDyT0lpHxIlJYlxYRKzOlU4u1ZMWKMlVgwxs_zTpTAbKrUZTFOyVnCKZNcKjkqzKzrgncGedfH0IJHEbqwNkvUxNAhsxogDAmlsBx6FzwakvMt2kNYuh5QF2rXOKiR3aHOVTFszBpwytchsxX0pofr4qIxywTj07wqPp4e3-cvePH2_DqfLXDFBe2xrUTFVU5tKSuVpCCILeVUNLJRpZFVbaeGQUWMVIRP6gYmJSUWqLRECKIYvyrujn83xjfGt_orDNFnR7337a7ebq0GlisikhCV1fSozqFTitDo7-g6E3eaEn0oVR9L1ZnQh1L1NjPsyKSs9S3EP4v_oNuT0Wfw7Spzv05SqolkQin-A-pHh8M</recordid><startdate>20160601</startdate><enddate>20160601</enddate><creator>董颖博 林海</creator><general>Central South University</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20160601</creationdate><title>Ammonia nitrogen removal from aqueous solution using zeolite modified by microwave-sodium acetate</title><author>董颖博 林海</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c351t-bc5c39222b127961e50b7685f6f97a6cdb8a2ec0a69034dfe4710be16b0550923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Chemical and Environmental Engineering</topic><topic>Engineering</topic><topic>Materials</topic><topic>Metallic Materials</topic><topic>Metallurgy</topic><topic>吸附性能</topic><topic>微波</topic><topic>改性沸石</topic><topic>氨氮去除率</topic><topic>水溶液</topic><topic>等温吸附模型</topic><topic>醋酸钠</topic><topic>阳离子交换量</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>董颖博 林海</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>董颖博 林海</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ammonia nitrogen removal from aqueous solution using zeolite modified by microwave-sodium acetate</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2016-06-01</date><risdate>2016</risdate><volume>23</volume><issue>6</issue><spage>1345</spage><epage>1352</epage><pages>1345-1352</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>The characteristics of the zeolite modified by microwave and sodium acetate and its sorption of ammonia-nitrogen from simulated water sample were investigated. The results show that the modified zeolite by microwave-sodium acetate （SMMZ） has a high sorption efficiency and removal performance. The ammonia-nitrogen removal rate of SMMZ reaches 92.90%. The surface of SMMZ becomes loose and some pores appear, the specific surface area, total pore volume and average pore diameter increase after modification. Compared to the natural zeolite, SMMZ has a more concentrated pore size distribution in the range of 0？10 nm. The cation exchange capacity （CEC） of SMMZ is higher than that of the natural zeolite. And the ammonia nitrogen removal rate is consistent with the change of CEC. The SMMZ possesses rapid sorption and slow balance characteristics and ammonia-nitrogen sorption is consistent with both Langmuir adsorption isotherm model and Freundlich adsorption isotherm model. The adsorption kinetics of ammonia-nitrogen follows the pseudo-second order kinetic model.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-016-3186-x</doi><tpages>8</tpages></addata></record> |
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| source | Springer Nature - Complete Springer Journals; Alma/SFX Local Collection |
| subjects | Chemical and Environmental Engineering Engineering Materials Metallic Materials Metallurgy 吸附性能 微波 改性沸石 氨氮去除率 水溶液 等温吸附模型 醋酸钠 阳离子交换量 |
| title | Ammonia nitrogen removal from aqueous solution using zeolite modified by microwave-sodium acetate |
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