Techno-economic aspects of concrete lightweighting by char enrichment with phosphates from wastewater
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F25%3A43910009" target="_blank" >RIV/60076658:12220/25:43910009 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12510/25:43910009
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2666821125000092?pes=vor&utm_source=scopus&getft_integrator=scopus" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2666821125000092?pes=vor&utm_source=scopus&getft_integrator=scopus</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceja.2025.100712" target="_blank" >10.1016/j.ceja.2025.100712</a>
Alternative languages
Result language
angličtina
Original language name
Techno-economic aspects of concrete lightweighting by char enrichment with phosphates from wastewater
Original language description
Portland cement (PC) production is a major contributor to environmental pollution due to its resource and energy - intensive nature, ranking as the 3rd largest source. Humans excrete approximately 5 g of phosphorus (P) day-1, which is often precipitated by salts into hardly applicable minerals such as struvite (in developed countries) or contributes to eutrophication (in developing countries). Worldwide, biogas plants produce a billion tons of digestate daily. Proposed solutions involve dewatering, charring and activation of digestate that is subsequently used to sorb P from wastewater and used as a PC substitute. Unique laboratory findings indicate that iron phosphates (FeP) on charred digestate can enhance concrete strength parameters (up to 80 %); reducing weight (- 18 %) and production cost (- 4 %) while turning carbon emissions into carbon sequestration. The mechanisms behind the experimental results are investigated through molecular modeling. It is revealed that interactions of char and FeP enhance aggregates, forming stronger contact ion pairs and increasing concrete strength and durability. Although the concept brings many technical, economic, and environmental improvements, further analyses are needed, especially regarding scaling up and the durability of the concrete.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
50204 - Business and management
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Journal Advances
ISSN
2666-8211
e-ISSN
2666-8211
Volume of the periodical
22
Issue of the periodical within the volume
May 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
1-8
UT code for WoS article
001426415300001
EID of the result in the Scopus database
2-s2.0-85217257910