Equilibrium studies of ammonium exchange with Australian natural zeolites

Millar, Graeme J.; Winnett, Abigail; Thompson, Travis; Couperthwaite, Sara J.

doi:10.1016/j.jwpe.2015.11.008

Cited by 65 publications

(34 citation statements)

References 58 publications

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“…Turkish zeolite [31] Iranian zeolite [32] Chinese zeolite [39] Australian zeolite [33] Chilean zeolite [19] Greek zeolite [40] Yemeni NZ [41]…”

Section: Resultsmentioning

confidence: 99%

“…The purification of waters and the treatment of industrial and urban waste waters have been the main fields of application of natural zeolitic materials . From the large list of zeolite deposits identified and reported the most widely studied are those from Turkey, Slovakia, Australia, Greece, Iran and Italy . However, limited studies could be found in relation to the Yemen which has huge reserves of zeolitic tuffs deposits which could have potential industrial and environmental applications.…”

Section: Introductionmentioning

confidence: 99%

“…[28][29][30] From the large list of zeolite deposits identified and reported the most widely studied are those from Turkey, Slovakia, Australia, Greece, Iran and Italy. [31][32][33] However, limited studies could be found in relation to the Yemen which has huge reserves of zeolitic tuffs deposits which could have potential industrial and environmental applications.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes

Jmayai

Hermassi

Alouani

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND In this study three natural Yemeni zeolites (NZ1, NZ2 and NZ3) having major minerals such as clinoptilolite and mordenite, were evaluated as low cost sorbents for the removal and recovery of ammonium ions. RESULTS The zeolite samples, with pHPZC = 9.1 ± 0.2, 7.9 ± 0.2 and 7.4 ± 0.2 for NZ1, NZ2 and NZ3, respectively, showed high ammonium sorption capacities. At pH 8, for treated waste waters: (i) with low NH4+ levels (from 25 to 100 mgNH4/L); and (ii) for concentrated NH4+ side streams generated from the anaerobic digestion of sewage sludge (from 400 up to 1500 mg L‐1), maximum loading capacities of 27 to 51 mgNH4 g‐1 were measured for the studied zeolites. Measured sorption isotherms, in the concentration range 0.05 to 5 g L‐1, were well described by the Langmuir isotherm. The ammonium sorption kinetics was controlled by particle diffusion and was well described by both the homogeneous diffusion (HPDM) and shell progressive (SPM) models. CONCLUSION Comparison of the equilibrium data with results for natural and synthetic zeolites demonstrate the higher performance of the studied zeolites providing low residual ammonium values <1 mgNH4 g‐1 and <10 mgNH4 g‐1 when treating both diluted and concentrated‐NH4+ streams, respectively. © 2017 Society of Chemical Industry

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“…Turkish zeolite [31] Iranian zeolite [32] Chinese zeolite [39] Australian zeolite [33] Chilean zeolite [19] Greek zeolite [40] Yemeni NZ [41]…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes

Jmayai

Hermassi

Alouani

et al. 2018

J of Chemical Tech & Biotech

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“…The usefulness of zeolites in the removal of ammonium ions during ion exchange processes has been widely documented [65,66]. An important property influencing the intensity of these processes is the cation exchangeable capacity (CEC) [66][67][68][69], which was at 118.02 meq/100 g for the zeolite studied. CEC of the remaining material was in the range from 1.12 meq/100 g for limestone sand to 13.88 meq/100 g for diatomite (Table 2), and the intensity of NH 4 -N removal on these materials was lower than for zeolite.…”

Section: Equilibrium Testsmentioning

confidence: 99%

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

Fronczyk

Mumford

2019

Applied Sciences

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Appropriate management of urban stormwater requires consideration of both water quantity, resulting from flood control requirements, and water quality, being a consequence of contaminant distribution via runoff water. This article focuses on the impact of temperature on the efficiency of stormwater treatment processes in permeable infiltration systems. Studies of the removal capacity of activated carbon, diatomite, halloysite, limestone sand and zeolite for select heavy metals (Cu and Zn) and biogenes (NH4-N and PO4-P) were performed in batch conditions at 3, 6, 10, 15, 22, 30 and 40 °C at low initial concentrations, and maximum sorption capacities determined at 3, 10, 22 and 40 °C. A decrease in temperature to 3 °C reduced the maximum sorption capacities (Qmax) of the applied materials in the range of 10% for diatomite uptake of PO4-P, to 46% for halloysite uptake of Cu. Only the value of Qmax for halloysite, limestone sand and diatomite for NH4-N uptake decreased slightly with temperature increase. A positive correlation was also observed for the equilibrium sorption (Qe) of Cu and Zn for analyses performed at low concentrations (with the exception of Zn sorption on limestone sand). In turn, for biogenes a rising trend was observed only in the range of 3 °C to 22 °C, whereas further temperature increase caused a decrease of Qe. Temperature had the largest influence on the removal of copper and the smallest on the removal of phosphates. It was also observed that the impact of temperature on the process of phosphate removal on all materials and ammonium ions on all materials, with the exception of zeolite, was negligible.

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“…Zeolit memiliki bentuk kristal yang sangat teratur dengan rongga yang saling berhubungan ke segala arah yang menyebabkan luas permukaan zeolit sangat besar sehingga sangat baik digunakan sebagai adsorben. 11 Saat ini mineral alam seperti zeolit banyak dimanfaatkan sebagai bahan proses dalam industri. khususnya sebagai penyerap alternatif pada pengolahan limbah dan sebagai penjernih pada proses dekolorisasi.…”

Section: Pendahuluanunclassified

Karakterisasi Zeolit Alam Gunung Kidul Teraktivasi Sebagai Media Adsorben Pewarna Tekstil

Atikah

2017

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ABSTRAKZeolit alam merupakan batuan mineral anorganik yang banyak terdapat di Indonesia. Zeolit alam adalah bahan berpori dengan sifat fisikokimia yang baik, seperti kapasitas tukar kation yang tinggi, selektivitas kation dan volume pori besar. Penggunaan zeolit telah berkembang dalam berbagai bidang industri, pengolahan air dan pengolahan air limbah. Sifat dari zeolit alam banyak ditentukan oleh sumber zeolit tersebut berasal. Dalam penggunaannya, zeolit alam harus melalui proses aktivasi yang bisa dilakukan secara fisika ataupun kimia. Pada percobaan ini akan dilakukan karakterisasi pada zeolit alam dari Gunung Kidul. Zeolit alam disiapkan dengan ukuran 150 mesh. Aktivasi dilakukan dengan menggunakan metode kimia dengan pengasaman menggunakan larutan HCl 5M dan metode fisika yaitu kalsinasi pada suhu 150 o C. Zeolit alam hasil aktivasi dievaluasi karakteristiknya menggunakan XRD, KTK dan BET. Berdasarkan hasil XRD, zeolit alam Gunung Kidul teraktivasi secara kimia akan menghasilkan senyawa modernit dimana sangat cocok bila dijadikan sebagai media adsorben. Hasil uji KTK dan BET menunjukkan hasil optimum pada proses aktivasi zeolite secara kimia. Dilakukan pula uji kemampuan adsorben dalam menyisihkan pewarna tekstil yang diuji pada beberapa variasi pH. Hasil karakterisasi dan pengujian dapat dijadikan acuan dalam mengukur potensi Zeolit Alam teraktivasi yang berasal dari Gunung Kidul untuk dapat diaplikasikan sebagai media adsorben dalam pengolahan limbah pewarna tekstil. ABSTRACTNatural zeolite is a mineral inorganic rock in Indonesia. Natural zeolite porous materials is with the nature of the good physicochemistry, such as cation exchange capacity cation selectivity, high volume and large pores. Use of zeolite has developed in various fields of industry, water treatment and wastewater treatment. The nature of natural zeolite a lot is determined by the source of the zeolite is derived. In its use, natural zeolite has to go through the activation process can be done in physics or chemistry. This experiment will be conducted on the characterization of natural zeolites of Gunung Kidul. Natural zeolite prepared with a size of 150 mesh. Activation is done by using chemical methods with 5 m HCl solution using the acidification and physical methods namely kalsinasi at 150 o C. Activated natural zeolite was characterized by XRD, CEC and BET. Based on the results of XRD, natural zeolite chemically activated of Gunung Kidul will produce compound modernit which is perfect when used as adsorbent. The test results of the CEC and BET shows the optimum results on chemically zeolite activation process. It is also carried out to measure the capability of adsorbents in the textile dyes which tested on some variation of the pH. The results of the characterization and testing is expected will be refference in measuring the potential use of activated natural zeolite originated from Gunung Kidul to be applied as adsorbents in wastewater treatment of textile dye.

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Equilibrium studies of ammonium exchange with Australian natural zeolites

Cited by 65 publications

References 58 publications

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

Karakterisasi Zeolit Alam Gunung Kidul Teraktivasi Sebagai Media Adsorben Pewarna Tekstil

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