Removal of Mg from spring water using natural clinoptilolite
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2012
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Natural zeolitic tuff from Brus (Serbia) consisting mostly of clinoptilolite (about 90%) has been investigated for the reduction of the Mg concentration in spring water. The sorption capacity of the zeolite is relatively low (about 2.5 mg Mg CI for the initial concentration of 100 mg Mg dm(-3)). The zeolitic tuff removes Mg from water solutions by ion exchange, which has been demonstrated by energy dispersive X-ray analysis (EDS). The extent of ion exchange was influenced by the pH and the initial Mg concentration. Kinetic studies revealed that Lagergen's pseudo-second order model was followed. Intra-particle diffusion of Mg2+ influenced the ion exchange, but it is not the rate-limiting step. Rather than having to dispose of the Mg-loaded (waste) zeolite, a possible application was tested. Addition to a wastewater with a low concentration of Mg showed that it could successfully make up for the lack of Mg micronutrient and, accordingly, enabled the growth of phosphate-accumulating bacte...ria A. Junii, increasing the amount of phosphate removed from the wastewater.
Ključne reči:
natural zeolite / Igros Vidojevic deposit / Brus / Serbia / clinoptilolite / Mg removal / bacteria / water softeningIzvor:
Clay Minerals, 2012, 47, 1, 81-92Izdavač:
- Mineralogical Soc, Twickenham
Finansiranje / projekti:
- Ministry of Science, Education and Sports of the Republic of CroatiaMinistry of Science, Education and Sports, Republic of Croatia [1191155-1203]
- Porozni materijali na bazi oksida u zaštiti životne sredine od genotoksičnih supstanci (RS-MESTD-Basic Research (BR or ON)-172018)
- Razvoj efikasnijih hemijsko-inženjerskih procesa zasnovan na istraživanjima fenomena prenosa i principima intenzifikacije procesa (RS-MESTD-Basic Research (BR or ON)-172022)
DOI: 10.1180/claymin.2012.047.1.81
ISSN: 0009-8558
WoS: 000301911500007
Scopus: 2-s2.0-84874042759
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Tomić, Simonida AU - Rajić, Nevenka AU - Hrenović, Jasna AU - Povrenović, Dragan PY - 2012 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2204 AB - Natural zeolitic tuff from Brus (Serbia) consisting mostly of clinoptilolite (about 90%) has been investigated for the reduction of the Mg concentration in spring water. The sorption capacity of the zeolite is relatively low (about 2.5 mg Mg CI for the initial concentration of 100 mg Mg dm(-3)). The zeolitic tuff removes Mg from water solutions by ion exchange, which has been demonstrated by energy dispersive X-ray analysis (EDS). The extent of ion exchange was influenced by the pH and the initial Mg concentration. Kinetic studies revealed that Lagergen's pseudo-second order model was followed. Intra-particle diffusion of Mg2+ influenced the ion exchange, but it is not the rate-limiting step. Rather than having to dispose of the Mg-loaded (waste) zeolite, a possible application was tested. Addition to a wastewater with a low concentration of Mg showed that it could successfully make up for the lack of Mg micronutrient and, accordingly, enabled the growth of phosphate-accumulating bacteria A. Junii, increasing the amount of phosphate removed from the wastewater. PB - Mineralogical Soc, Twickenham T2 - Clay Minerals T1 - Removal of Mg from spring water using natural clinoptilolite EP - 92 IS - 1 SP - 81 VL - 47 DO - 10.1180/claymin.2012.047.1.81 ER -
@article{ author = "Tomić, Simonida and Rajić, Nevenka and Hrenović, Jasna and Povrenović, Dragan", year = "2012", abstract = "Natural zeolitic tuff from Brus (Serbia) consisting mostly of clinoptilolite (about 90%) has been investigated for the reduction of the Mg concentration in spring water. The sorption capacity of the zeolite is relatively low (about 2.5 mg Mg CI for the initial concentration of 100 mg Mg dm(-3)). The zeolitic tuff removes Mg from water solutions by ion exchange, which has been demonstrated by energy dispersive X-ray analysis (EDS). The extent of ion exchange was influenced by the pH and the initial Mg concentration. Kinetic studies revealed that Lagergen's pseudo-second order model was followed. Intra-particle diffusion of Mg2+ influenced the ion exchange, but it is not the rate-limiting step. Rather than having to dispose of the Mg-loaded (waste) zeolite, a possible application was tested. Addition to a wastewater with a low concentration of Mg showed that it could successfully make up for the lack of Mg micronutrient and, accordingly, enabled the growth of phosphate-accumulating bacteria A. Junii, increasing the amount of phosphate removed from the wastewater.", publisher = "Mineralogical Soc, Twickenham", journal = "Clay Minerals", title = "Removal of Mg from spring water using natural clinoptilolite", pages = "92-81", number = "1", volume = "47", doi = "10.1180/claymin.2012.047.1.81" }
Tomić, S., Rajić, N., Hrenović, J.,& Povrenović, D.. (2012). Removal of Mg from spring water using natural clinoptilolite. in Clay Minerals Mineralogical Soc, Twickenham., 47(1), 81-92. https://doi.org/10.1180/claymin.2012.047.1.81
Tomić S, Rajić N, Hrenović J, Povrenović D. Removal of Mg from spring water using natural clinoptilolite. in Clay Minerals. 2012;47(1):81-92. doi:10.1180/claymin.2012.047.1.81 .
Tomić, Simonida, Rajić, Nevenka, Hrenović, Jasna, Povrenović, Dragan, "Removal of Mg from spring water using natural clinoptilolite" in Clay Minerals, 47, no. 1 (2012):81-92, https://doi.org/10.1180/claymin.2012.047.1.81 . .