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Proceeding Paper

Procedure for Large-Scale Production of Apatite-Based Adsorbent Material for Arsenic Removal †

by
Roxana Ioana Matei (Brazdis)
1,2,*,
Valentin Raditoiu
1,
Irina Fierascu
1,3,
Anda Maria Baroi
1,3,
Toma Fistos
1,2,
Sorin Claudiu Ulinici
4,
Sorin Marius Avramescu
5,6,
Dorian Radu
1 and
Radu Claudiu Fierascu
1,2
1
National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Bucharest, Romania
2
Faculty of Applied Chemistry and Materials Science, National University of Science and Technology Politehnica Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
3
Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd., 011464 Bucharest, Romania
4
Research-Development Institute for Environmental Protection Technologies and Equipment, S.C. I.C.P.E. Bistrita S.A., 7 Parcului Street, 420035 Bistriţa, Romania
5
Department of Inorganic Chemistry, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 030018 Bucharest, Romania
6
Research Center for Environmental Protection and Waste Management, University of Bucharest, 36–46 Mihail Kogalniceanu Blvd., 050107 Bucharest, Romania
*
Author to whom correspondence should be addressed.
†
Presented at the 19th International Symposium “Priorities of Chemistry for a Sustainable Development”, Bucharest, Romania, 11–13 October 2023.
Proceedings 2023, 90(1), 14; https://doi.org/10.3390/proceedings2023090014
Published: 7 December 2023
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Versions Notes

Abstract

:
Nowadays, water purification technologies are based on nano-scaled adsorbents, such as metal or polymeric nanoadsorbents, metal organic frameworks, metal oxide nanoparticles, and carbonated nanomaterials, which have shown exceptional results in water decontamination. Adsorption is one of the most environmentally friendly and efficient methods used for pollutant removal from aquatic environments due to the large specific surface area of nanoadsorbents, which creates multiple adsorption sites. Therefore, we developed a synthesis method for the large-scale production of an apatitic adsorbent, which we will further use in a water treatment system.

1. Introduction

With the great industrial revolution, pollution, whether we are talking about water, soil, or air pollution, has gained an exponential increase. Adsorption is one of the most environmentally friendly and efficient methods of removing pollutants from aquatic environments due to the large specific surface area of nanoadsorbents, which creates more adsorption sites. Moreover, by controlling the synthesis parameters, adsorbents with controllable morphology, high mechanical and thermal stability, and, most importantly, ecological character can be obtained [1].

2. Materials and Methods

In this study, we prepared an apatitic material-based adsorbent at a large scale based on a protocol previously presented by our group [2,3] in two reactors of 20 L volume each (Figure 1), using Ca(NO3)2 × 4H2O and (NH4)2HPO4. Both of the reactors were maintained at 80 °C and continuously stirred for 3h. The obtained material was characterized via X-ray diffraction to confirm the synthesis.

3. Results

The obtained powder was further conditioned using PVA (JP-24, J-Poval) and calcinated at 600 °C.

4. Conclusions

The efficiency of the material was evaluated for arsenic removal in a synthetic water matrix using column experiments.

Author Contributions

Conceptualization, R.I.M. and R.C.F.; methodology, R.I.M., V.R. and R.C.F.; formal analysis, V.R., I.F., S.C.U., and S.M.A.; investigation, R.I.M., A.M.B., T.F., D.R. and R.C.F.; writing—original draft preparation, R.I.M. and I.F.; writing—review and editing, R.C.F.; supervision, I.F.; project administration, R.C.F. All authors have read and agreed to the published version of the manuscript.

Funding

This work was funded by the Ministry of Research, Innovation, and Digitization, CCCDI—UEFISCDI, project number PN-III-P2-2.1-PTE-2021-0309, contract 81PTE/2022, within PNCDI III. The support provided by the Ministry of Research, Innovation, and Digitization through Program 1—Development of the national research and development system, Subprogram 1.2—Institutional performance—Projects to finance excellence in RDI, contract no. 15PFE/2021, is also gratefully acknowledged.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

The supporting data are available from the corresponding author.

Conflicts of Interest

The authors declare no conflict of interest.

References

  1. Puri, N.; Gupta, A.; Mishra, A. Recent advances on nano-adsorbents and nanomembranes for the remediation of water. J. Clean. Prod. 2021, 322, 129051. [Google Scholar] [CrossRef]
  2. Fierascu, R.C.; Fierascu, I.; Raditoiu, V. Adsorbent with Magnetic Properties Based on Apatite Material for the Treatment of Water Polluted with Organic and Inorganic Compounds and the Method of Obtaining It. Patent application A00380/2019.
  3. Fierascu, I.; Avramescu, S.M.; Petreanu, I.; Marinoiu, A.; Soare, A.; Nica, A.; Fierascu, R.C. Efficient removal of phenol from aqueous solutions using hydroxyapatite and substituted hydroxyapatites. React. Kin. Mech. Catal. 2017, 122, 155–175. [Google Scholar] [CrossRef]
Proceedings 90 00014 g001
Figure 1. The 20 L reactor used for the synthesis.
Figure 1. The 20 L reactor used for the synthesis.
Proceedings 90 00014 g001
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Share and Cite

MDPI and ACS Style

Matei, R.I.; Raditoiu, V.; Fierascu, I.; Baroi, A.M.; Fistos, T.; Ulinici, S.C.; Avramescu, S.M.; Radu, D.; Fierascu, R.C. Procedure for Large-Scale Production of Apatite-Based Adsorbent Material for Arsenic Removal. Proceedings 2023, 90, 14. https://doi.org/10.3390/proceedings2023090014

AMA Style

Matei RI, Raditoiu V, Fierascu I, Baroi AM, Fistos T, Ulinici SC, Avramescu SM, Radu D, Fierascu RC. Procedure for Large-Scale Production of Apatite-Based Adsorbent Material for Arsenic Removal. Proceedings. 2023; 90(1):14. https://doi.org/10.3390/proceedings2023090014

Chicago/Turabian Style

Matei (Brazdis), Roxana Ioana, Valentin Raditoiu, Irina Fierascu, Anda Maria Baroi, Toma Fistos, Sorin Claudiu Ulinici, Sorin Marius Avramescu, Dorian Radu, and Radu Claudiu Fierascu. 2023. "Procedure for Large-Scale Production of Apatite-Based Adsorbent Material for Arsenic Removal" Proceedings 90, no. 1: 14. https://doi.org/10.3390/proceedings2023090014

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