Better filterability and reduced radioactivity of phosphogypsum during phosphoric acid production in Morocco using a fly ash waste and pure silica additive-Reference-Cited by-同舟云学术

Better filterability and reduced radioactivity of phosphogypsum during phosphoric acid production in Morocco using a fly ash waste and pure silica additive

Published:2022-03-18 Issue:4 Volume:331 Page:1609-1617
ISSN:0236-5731
Container-title:Journal of Radioanalytical and Nuclear Chemistry
language:en
Short-container-title:J Radioanal Nucl Chem

Author:

Arhouni Fatima Ezzahra,Hakkar Mohammed,Mahrou Ahmed,Belahbib Laila,Mazouz Hamid,Haneklaus Nils^ORCID,Pavón Sandra^ORCID,Bertau Martin^ORCID,Boukhair Aziz^ORCID,Ouakkas Saad,Abdo Maged A. S.,Benjelloun Mohammed

Abstract

AbstractReactive silica additives, such as clays, can increase the filterability of phosphogypsum (PG) during wet phosphoric acid production from phosphate rock (PR). In this study, the effect of adding inexpensive fly ash waste (34 kg per t PR) together with lower quantities of pure silica (8.5 kg per t PR) on the radioactivity of PG was investigated. The addition of fly ash waste/pure silica reduced the radiological activity of the PG by roughly 30%. The reduction was attributed to decreased activities from 238U (60% reduction) and 226Ra (30% reduction) in PG. Besides, P2O5 losses were slightly decreased.

Funder

Max-Buchner-Stiftung

OeAD-GmbH

ERA-MIN3

Technische Universität Bergakademie Freiberg

Publisher

Springer Science and Business Media LLC

Subject

Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health,Spectroscopy,Pollution,Radiology, Nuclear Medicine and imaging,Nuclear Energy and Engineering,Analytical Chemistry

Link

https://link.springer.com/content/pdf/10.1007/s10967-022-08235-y.pdf

Reference44 articles.

1. USGS (2022) United States Geological Survey - Phosphate rock. https://pubs.usgs.gov/periodicals/mcs2022/mcs2022-phosphate.pdf

2. Rutherford PM, Dudas MJ, Arocena JM (1996) Heterogeneous distribution of radionuclides, barium and strontium in phosphogypsum by-product. Sci Total Environ 180:201–209. https://doi.org/10.1016/0048-9697(95)04939-8

3. IAEA (2013) Safety reports series No. 78 radiation protection and management of NORM residues in the phosphate industry. ISBN 978-92-0-135810-3.

4. Haneklaus N, Sun Y, Bol R et al (2017) To extract, or not to extract uranium from phosphate rock, that is the question. Environ Sci Technol 51:753–754. https://doi.org/10.1021/acs.est.6b05506

5. Haneklaus N (2021) Unconventional uranium resources from phosphates. Encycl Nucl Energy. https://doi.org/10.1016/B978-0-12-819725-7.00152-5

Cited by 12 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Efficiency of acid mixtures for mitigating the radioactive contaminants in phosphogypsum;Radiation Physics and Chemistry;2024-12

2. Chemical and radiochemical characterization of phosphogypsum from Poland;Nukleonika;2024-06-01

3. Uranium Dissemination with Phosphate Fertilizers Globally: A Systematic Review with Focus on East Africa;Sustainability;2024-02-09

4. Phosphogypsum (Pg) Crystal Size Distributions in Presence and Absence of Pg Seed Crystals and Sorbitol Surfactant;2024

5. Process of preparing chloride-free KNS compound fertilizers from phosphogypsum waste using a quaternary phase diagram;Process Safety and Environmental Protection;2023-09