Radiological investigation of phosphate fertilizers: Leaching studies

Hegedűs, Miklós; Tóth-Bodrogi, Edit; Németh, Szabolcs; Somlai, J.; Kovács, Tibor

doi:10.1016/j.jenvrad.2016.10.006

Cited by 27 publications

(6 citation statements)

References 29 publications

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“…Although magnesium phosphate cement has a high pH level of 10.45 that develops with time as the cement hardens (Jia et al, 2019), it has low microbiological stability, which is related to the monopotassium phosphate that is used as a hardener for the binder. The monopotassium phosphate water solution has a pH lower than 7 and can also be used as a concentrated mineral fertiliser (Hegedűs et al, 2017;Shen et al, 2017); thus, the undissolved part of the hardener can serve as a nutrient for fungal growth.…”

Section: Additional Antimicrobial Protectionmentioning

confidence: 99%

Microbiological Stability of Bio-Based Building Materials

Obuka¹,

Šinka²,

Nikolajeva³

et al. 2021

J. Ecol. Eng.

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The aim of this paper was to study the microbiological stability of bio-based composite building materials, which are made using organic-rich lake sediments (further -sapropel) with lime and magnesium cement as binders and hemp shives as filler. The microbial stability properties of the obtained composite materials were investigated and compared to similar composites. Because of their high organic content, these materials are prone to biodegradation; therefore, they were coated with ALINA LIFE TM organoclay coating, which helps to extend the product life, reducing the rate of biodegradation compared to the biocides used in industry. The effect of the coating on the resistance to decay by the Aspergillus versicolor, Penicillium chrysogenum, Alternaria alternata, Cladosporium herbarum, Chaetomium sp. and Trichoderma asperellum fungi was investigated under different conditions: relative humidity modes of 75% and 99% at 20°C for 45 days and four months. The results indicated that the composites made of sapropel and lime have similar microbial stability properties as lime and magnesium cement binder composite materials. ALINA LIFE TM organoclay coating showed advanced resistance to biodegradation; sapropel-lime composites have shown several good properties that make them suitable to be considered for use in the construction material industry.

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Section: Additional Antimicrobial Protectionmentioning

confidence: 99%

Microbiological Stability of Bio-Based Building Materials

Obuka¹,

Šinka²,

Nikolajeva³

et al. 2021

J. Ecol. Eng.

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“…When phosphate fertilizers are used extensively for long periods, increased concentrations of phosphorus can be found in water, as a result of the transport of phosphorus-laden soil particles in lakes and surface waters (Emami et al, 2019). In addition, most commercial phosphorus fertilizers contain toxic elements such as lead (Pb), fluorine (F), arsenic (As), cadmium (Cd), mercury (Hg), and chromium (Cr), along with radionuclides such as Ra-226, Th-232, Pb-210, Po-210, andU-238 (Emami et al, 2019, 2020;Hegedűs et al, 2017).…”

Section: Atmospheric N 2 Fixationmentioning

confidence: 99%

Endophytic bacteria: a possible path towards a sustainable agriculture

Xavier¹,

Bosch²,

Karp³

et al. 2021

biori

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“…Phosphorus is an essential chemical element with significant roles in the chemical industry, agriculture, and new energy sectors. [1][2][3] Apatite is one of the most important sources of phosphorus. 4 Naturally occurring apatite includes fluorapatite (Ca 5 (PO 4 ) 3 F), chlorapatite (Ca 5 (PO 4 ) 3 Cl), and hydroxyapatite (Ca 5 (PO 4 ) 3 OH).…”

Section: Introductionmentioning

confidence: 99%