Elsevier eBooks, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Elsevier eBooks, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
Язык: Английский
Environmental Research, Год журнала: 2025, Номер unknown, С. 121006 - 121006
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
5Structures, Год журнала: 2025, Номер 74, С. 108494 - 108494
Опубликована: Март 4, 2025
Язык: Английский
Процитировано
1Case Studies in Construction Materials, Год журнала: 2025, Номер unknown, С. e04494 - e04494
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
1Buildings, Год журнала: 2024, Номер 14(12), С. 4011 - 4011
Опубликована: Дек. 18, 2024
This study investigates the potential of bioaugmentation with Bacillus species to enhance wastewater treatment and develop a bacterial–CaCO3 system for self-healing cement applications. Utilizing microbiologically induced calcium carbonate precipitation (MICP), this evaluates dual functionality licheniformis B. muralis strains. For treatment, process achieved significant pollutant reductions, including 99.52% decrease in biochemical oxygen demand (BOD5), 92.13% reduction chemical (COD), substantial removal heavy metals nutrients. also produced high concentrations CaCO3 precipitate enriched viable bacterial cells, demonstrating an eco-friendly approach improving water quality. applications, bioaugmented crystals were coated nutrient sodium silicate layers form coupled system. demonstrated 92% recovery compressive strength after 180 days, highlighting its ability autonomously repair microcracks cement-based materials. The layered encapsulation strategy ensured viability controlled activation mechanism, offering scalable sustainable solution infrastructure resilience. dual-function addresses critical environmental construction challenges by linking efficient innovative material development, contributing global sustainability circular economy goals.
Язык: Английский
Процитировано
3International Journal of Geomate, Год журнала: 2025, Номер 28(125)
Опубликована: Янв. 17, 2025
The Bacillus megaterium bacteria synergy on concrete mechanical and physical properties to enhance durability strength through self-healing is studied.Two concentration variations, variations of 4% 8% water volume, were added fresh based the substitution method.NC0 stands for 0% functions as a control specimen, while SHC4 SHC8 represented content, respectively.The primary focus was analyze compressive strength, density, permeable voids, absorption behavior at ages 28 56 days.Results indicated that significantly improved hardened concrete.SHC4 exhibited increase 14% days 15% 19% compared NC0.This resulted from voids reduction, well an aggregate-to-mortar ITZ bond due formation bacteria-produced CaCO3, which filled voids.Reduction in 7% 17%, density improvement up 10% days.A higher content consequently produced better void-filling mechanism.The with proven more effective than SHC4.The 56-day specimens revealed significant performance enhancement development CaCO3 deposits over time.It interesting further studies determine effectiveness convergence function hardening time.This research highlights potential biological approach methods developing sustainable resilient construction materials.
Язык: Английский
Процитировано
0Construction and Building Materials, Год журнала: 2025, Номер 470, С. 140625 - 140625
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(5), С. 2230 - 2230
Опубликована: Март 1, 2025
Mineral carbonation is a prominent method for carbon sequestration. Atmospheric dioxide (CO2) trapped as mineral carbonate precipitates, which are geochemically, geologically, and thermodynamically stable. Carbonate rocks can originate from biogenic or abiogenic origin, whereby the former refers to breakdown of biofragments latter precipitation out water. Carbonates also be formed through biologically controlled mechanisms (BCMs), mediated (BMMs), induced (BIMs). Microbial (MCP) BMM occurring interaction organics (extracellular polymeric substances (EPS), cell wall, etc.) soluble cations facilitating indirect minerals. Microbially (MICP) BIM via different metabolic pathways. Enzyme-driven pathways (carbonic anhydrase (CA) and/or urease), specifically, promising high conversion calcium (CaCO3) precipitation, trapping large quantities gaseous CO2. These precipitates trap CO2 trapping, solubility formation aid in leakage reduction geologic Additional experimental research required assess feasibility MICP sequestration at scale long-term stability precipitates. Laboratory-scale evaluation provide preliminary data on preferable materials their capacity atmospheric versus injected
Язык: Английский
Процитировано
0Research Square (Research Square), Год журнала: 2025, Номер unknown
Опубликована: Март 3, 2025
Язык: Английский
Процитировано
0Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0Case Studies in Construction Materials, Год журнала: 2025, Номер unknown, С. e04559 - e04559
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0