{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T01:55:14Z","timestamp":1785894914558,"version":"3.56.0"},"reference-count":32,"publisher":"IWA Publishing","issue":"11","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2017,12,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>In this study, surfactant modified zeolite-clinoptilolite (SMZ) by CPB (cetylpyridinium bromide) was used for simultaneous removal of ammonium, nitrate and phosphate in synthetic wastewater, and the sorption properties of SMZ were determined and compared with natural zeolite. Results showed that natural clinoptilolite had good affinity for ammonium (8.940 mg\/g), but not for nitrate (0.427 mg\/g) and phosphate (0.801 mg\/g). With the increase of surfactant loading from 5 g\/L to 40 g\/L, the sorption capacity for nitrate increased from 0.462 mg\/g to 4.661 mg\/g. when the surfactant loading is 40 g\/L, the SMZ has a phosphate adsorption capacity of 2.119 mg\/g. The SMZ had a significant enhancement on nitrate and phosphate sorption, could simultaneously remove ammonium, nitrate and phosphate at specific conditions, with removal efficiency up to 85.2%, 83.1% and 56.7%, respectively. Orthogonal experiments showed that ammonium concentration was the most important factor for ammonium sorption on SMZ. Surfactant loading was the major factor for nitrate and phosphate sorption. With the increase of surfactant loading from 5 g\/L to 40 g\/L, the sorption capacity for nitrate increased from 0.462 mg\/g to 4.661 mg\/g. When the surfactant loading is 40 g\/L, the SMZ has the best phosphate adsorption capacity 2.119 mg\/g. Samples were characterized by X-ray diffraction (XRD) and Brunauer\u2013Emmett\u2013Teller (BET). Semi-empirical quantum mechanics molecular simulation indicated that electrostatic attraction existed between CPB and dihydrogen phosphate ion. Results indicate that SMZs might have great potential of removing cations and anions simultaneously in the aquatic environment, which is good for eutrophication control and nutrients removal.<\/jats:p>","DOI":"10.2166\/wst.2017.459","type":"journal-article","created":{"date-parts":[[2017,8,15]],"date-time":"2017-08-15T00:20:23Z","timestamp":1502756423000},"page":"2895-2906","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":17,"title":["Simultaneous removal of nitrogen and phosphorus by cetylpyridinium bromide modified zeolite"],"prefix":"10.2166","volume":"76","author":[{"given":"Chengle","family":"Li","sequence":"first","affiliation":[{"name":"School of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Yao","sequence":"first","affiliation":[{"name":"Beijing Engineering Corporation Limited of Power China, Beijing, 100020, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tian C.","family":"Zhang","sequence":"first","affiliation":[{"name":"Civil Engineering Department, University of Nebraska-Lincoln, Omaha, NE 68182-0178, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenya","family":"Xing","sequence":"first","affiliation":[{"name":"School of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Liang","sequence":"first","affiliation":[{"name":"School of Architecture and Environmental Engineering, Sichuan University, Chengdu, 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingli","family":"Xiang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"945","published-online":{"date-parts":[[2017,8,14]]},"reference":[{"key":"2020032810323575900_WST-EM17280R1C1","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/j.seppur.2013.04.013","article-title":"Synthesis and characterization of modified UZM-5 as adsorbent for nitrate removal from aqueous solution","volume":"113","year":"2013","journal-title":"Separation and Purification Technology"},{"issue":"25","key":"2020032810323575900_WST-EM17280R1C2","first-page":"8127","article-title":"Cheminform abstract: conformational analysis.130.MM2.A hydrocarbon force field utilizing V1 and V2 torsional terms","volume":"99","year":"1977","journal-title":"Chemischer Informationsdienst"},{"issue":"4","key":"2020032810323575900_WST-EM17280R1C3","first-page":"876","article-title":"Studies of anions sorption on natural zeolites","volume":"133","year":"2014","journal-title":"Spectrochimica Acta Part A Molecular & Biomolecular Spectroscopy"},{"key":"2020032810323575900_WST-EM17280R1C4","doi-asserted-by":"crossref","first-page":"246","DOI":"10.1016\/j.molliq.2015.05.038","article-title":"The removal of Cr (III) and Co (II) ions from aqueous solution by two mechanisms using a new sorbent (alumina nanoparticles immobilized zeolite) \u2014 equilibrium, kinetic and thermodynamic studies","volume":"209","year":"2015","journal-title":"Journal of Molecular Liquids"},{"key":"2020032810323575900_WST-EM17280R1C5","doi-asserted-by":"crossref","first-page":"1099","DOI":"10.1016\/j.watres.2004.12.010","article-title":"Adsorption of chromate by clinoptilolite exchanged with various metal cations","volume":"39","year":"2005","journal-title":"Water Research"},{"issue":"2","key":"2020032810323575900_WST-EM17280R1C6","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1093\/comjnl\/7.2.149","article-title":"Function minimization by conjugate gradients","volume":"7","year":"1964","journal-title":"Computer Journal"},{"key":"2020032810323575900_WST-EM17280R1C7","author":"GB11893-89","year":"1990"},{"issue":"3","key":"2020032810323575900_WST-EM17280R1C8","doi-asserted-by":"crossref","first-page":"375","DOI":"10.1007\/BF02614362","article-title":"A globally convergent version of the Polak-Ribiere conjugate gradient method","volume":"78","year":"1997","journal-title":"Mathematical Programming"},{"key":"2020032810323575900_WST-EM17280R1C9","volume-title":"Cationic Surfactants and Its Application","year":"2002"},{"key":"2020032810323575900_WST-EM17280R1C10","author":"HJ536-2009","year":"2010"},{"key":"2020032810323575900_WST-EM17280R1C11","author":"HJ636-2012","year":"2012"},{"key":"2020032810323575900_WST-EM17280R1C12","first-page":"431e438","article-title":"Simultaneous removal of nutrients from simulated swine wastewater by adsorption of modified zeolite combined with struvite crystallization","volume":"256","year":"2014","journal-title":"Chemical Engineering Journal"},{"key":"2020032810323575900_WST-EM17280R1C13","first-page":"191e201","article-title":"Kinetics, isotherm, thermodynamic, and adsorption mechanism studies of La(OH)3-modified exfoliated vermiculites as highly efficient phosphate adsorbents","volume":"236","year":"2014","journal-title":"Chemical Engineering Journal"},{"issue":"45","key":"2020032810323575900_WST-EM17280R1C14","doi-asserted-by":"crossref","first-page":"11225","DOI":"10.1021\/ja9621760","article-title":"Development and testing of the OPLS all-atom force field on conformational energetics and properties of organic liquids","volume":"118","year":"1996","journal-title":"Journal of the American Chemical Society"},{"key":"2020032810323575900_WST-EM17280R1C15","doi-asserted-by":"crossref","first-page":"1365","DOI":"10.1021\/es00069a006","article-title":"Enhanced retention of organic contaminants by soils exchanged with organic cations","volume":"23","year":"1989","journal-title":"Environmental Science & Technology"},{"key":"2020032810323575900_WST-EM17280R1C16","doi-asserted-by":"crossref","first-page":"2407","DOI":"10.1021\/es9610693","article-title":"Counterion effects on the sorption of cationic surfactant and chromate on natural clinoptilolite","volume":"31","year":"1997","journal-title":"Environmental Science & Technology"},{"issue":"3","key":"2020032810323575900_WST-EM17280R1C17","first-page":"575","article-title":"Adsorption and desorption of phosphate on CPB modified zeolite","volume":"4","year":"2010","journal-title":"Chinese Journal of Environmental Engineering"},{"issue":"13","key":"2020032810323575900_WST-EM17280R1C18","first-page":"3902","article-title":"AM1: a new general purpose quantum mechanical molecular model","volume":"107","year":"1985","journal-title":"Chemischer Informationsdienst"},{"issue":"1","key":"2020032810323575900_WST-EM17280R1C19","first-page":"185","article-title":"Comparison of the efficiency of modified clinoptilolite with HDTMA and HDP surfactants for the removal of phosphate in aqueous solutions","volume":"31","year":"2015","journal-title":"Journal of Industrial & Engineering Chemistry"},{"key":"2020032810323575900_WST-EM17280R1C20","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1016\/j.micromeso.2009.12.008","article-title":"Ethylene adsorption on cationic surfactant modified zeolite NaY","volume":"131","year":"2010","journal-title":"Microporous & Mesoporous Materials"},{"key":"2020032810323575900_WST-EM17280R1C21","volume-title":"Zeolite Processing and Applications","year":"2013","edition":"2nd edn"},{"key":"2020032810323575900_WST-EM17280R1C22a","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1080\/00986445.2013.766602","article-title":"Use of response surface methodology to study the combined effect of various parameters on hexavalent chromium adsorption","volume":"201","year":"2014","journal-title":"Chemical Engineering Communications"},{"issue":"11","key":"2020032810323575900_WST-EM17280R1C22","doi-asserted-by":"crossref","first-page":"1931","DOI":"10.2166\/wst.2015.392","article-title":"Simultaneous removal of ammonium and nitrate by HDTMA-modified zeolite","volume":"72","year":"2015","journal-title":"Water Science & Technology A Journal of the International Association on Water Pollution Research"},{"issue":"24","key":"2020032810323575900_WST-EM17280R1C23","doi-asserted-by":"crossref","first-page":"7239","DOI":"10.1021\/jm060686r","article-title":"Discovering inhibitors of human sirtuin type 2: novel structural scaffolds","volume":"49","year":"2006","journal-title":"Journal of Medicinal Chemistry"},{"issue":"7","key":"2020032810323575900_WST-EM17280R1C24","first-page":"16","article-title":"Research on adsorption characteristics of chromium on natural and modified zeolite","volume":"51","year":"2015","journal-title":"China Ceramics."},{"key":"2020032810323575900_WST-EM17280R1C26","volume-title":"Modern Catalytic Research Methods","year":"2009"},{"issue":"3","key":"2020032810323575900_WST-EM17280R1C27","first-page":"53","article-title":"Stability and dynamics analysis of time delayed eutrophication ecological model based upon the Zeya reservoir","volume":"97","year":"2014","journal-title":"Mathematics & Computers in Simulation"},{"issue":"2-3","key":"2020032810323575900_WST-EM17280R1C28","doi-asserted-by":"crossref","first-page":"1972","DOI":"10.1016\/j.jhazmat.2010.12.090","article-title":"Removal of nitrate from aqueous solution using cetylpyridinium bromide (CPB) modified zeolite as adsorbent","volume":"186","year":"2011","journal-title":"Journal of Hazardous Materials"},{"key":"2020032810323575900_WST-EM17280R1C29","doi-asserted-by":"crossref","first-page":"2825","DOI":"10.1080\/01496395.2013.808669","article-title":"High selective separation of flavonoids based on crosslinked chitosan resin grafted by quercetin","volume":"48","year":"2013","journal-title":"Separation Science and Technology"},{"issue":"1","key":"2020032810323575900_WST-EM17280R1C30","first-page":"167","article-title":"Research and application progress of modified zeolite in water treatment","volume":"22","year":"2011","journal-title":"Journal of Water Resources and Water Engineering"},{"issue":"1","key":"2020032810323575900_WST-EM17280R1C31","first-page":"252","article-title":"Total ammonia nitrogen removal from aqueous solutions by the natural zeolite, mordenite: a laboratory test and experimental study","volume":"432","year":"2014","journal-title":"Aquaculture"},{"issue":"4","key":"2020032810323575900_WST-EM17280R1C32","doi-asserted-by":"crossref","first-page":"454","DOI":"10.1016\/S1002-0160(11)60147-1","article-title":"Kinetic adsorption of ammonium nitrogen by substrate materials for constructed wetlands","volume":"21","year":"2011","journal-title":"Pedosphere"}],"container-title":["Water Science and Technology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/iwaponline.com\/wst\/article-pdf\/76\/11\/2895\/210667\/wst076112895.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/iwaponline.com\/wst\/article-pdf\/76\/11\/2895\/210667\/wst076112895.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,3,28]],"date-time":"2020-03-28T14:32:59Z","timestamp":1585405979000},"score":1,"resource":{"primary":{"URL":"https:\/\/iwaponline.com\/wst\/article\/76\/11\/2895\/38403\/Simultaneous-removal-of-nitrogen-and-phosphorus-by"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,8,14]]},"references-count":32,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2017,8,14]]},"published-print":{"date-parts":[[2017,12,6]]}},"URL":"https:\/\/doi.org\/10.2166\/wst.2017.459","relation":{},"ISSN":["0273-1223","1996-9732"],"issn-type":[{"value":"0273-1223","type":"print"},{"value":"1996-9732","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,8,14]]}}}