A5101688487- Microbial Applications in Construction Materials
- Grouting, Rheology, and Soil Mechanics
- Corrosion Behavior and Inhibition
- Calcium Carbonate Crystallization and Inhibition
- Microbial Fuel Cells and Bioremediation
- Concrete and Cement Materials Research
- Advanced materials and composites
- Wastewater Treatment and Nitrogen Removal
- Titanium Alloys Microstructure and Properties
- Marine Sponges and Natural Products
- Hydrology and Sediment Transport Processes
- Intermetallics and Advanced Alloy Properties
- Membrane Separation Technologies
- Metal and Thin Film Mechanics
- Hydraulic flow and structures
- Electrochemical sensors and biosensors
- Innovative concrete reinforcement materials
- Microbial bioremediation and biosurfactants
- Aluminum Alloys Composites Properties
- Electrochemical Analysis and Applications
- Bacterial biofilms and quorum sensing
- Nonlinear Optical Materials Research
- Hydrology and Watershed Management Studies
- Toxic Organic Pollutants Impact
- Advanced oxidation water treatment
Jiangsu University
2018-2025
Suzhou University of Science and Technology
2024-2025
National Taipei University of Technology
2002-2024
Curtin University
2016-2024
Northwest A&F University
2024
Chongqing University
2024
Nanjing University
2022-2023
Mineral Resources
2023
Nanyang Technological University
2017-2023
Beihang University
2023
A newly emerging microbiological soil stabilization method, known as microbially induced calcite precipitation (MICP), has been tested for geotechnical engineering applications. MICP is a promising technique that utilizes the metabolic pathways of bacteria to form throughout matrix, leading an increase in strength and stiffness. This paper investigates properties sand bio-cemented under different degrees saturation. series laboratory experiments was conducted, including sieve analysis,...
Biocementation is a recently developed new branch in geotechnical engineering that deals with the application of microbiological activity to improve properties soils. One most commonly adopted processes achieve soil biocementation through microbially induced calcite precipitation (MICP). This technique utilizes metabolic pathways bacteria form (CaCO3) binds particles together, leading increased strength and stiffness. paper presents review use MICP for improvement discusses treatment process...
Microbially induced calcite precipitation (MICP) is a sustainable biological ground improvement technique that capable of altering and improving soil mechanical geotechnical engineering properties. In this paper, laboratory column studies were used to examine the effects some key environmental parameters on ureolytic MICP mediated soils, including impact urease concentrations, temperature, rainwater flushing, oil contamination, freeze–thaw cycling. The results indicate an effective crystal...
This study proposes and describes a novel approach for cementing sandy soils in marine environments by modifying the promising technique of microbially induced carbonate precipitation (MICP). In contrast to usual MICP described literature, method proposed herein relies on calcium ions dissolved seawater as sole source calcite formation. involves flushing high-salinity-tolerant, urease-active bacteria followed mixture urea through porous soil, leading bacterial release from urease reaction...
A unique microbiome that metabolizes lactate rather than ethanol for n-caproate production was obtained from a fermentation pit used the of Chinese strong-flavour liquor (CSFL). The able to produce at concentrations as high 23.41 g/L maximum rate 2.97 g/L/d in batch trials without in-line extraction. Compared with previous work using electron donor, concentration increased by 82.89%. High-throughput sequencing analysis showed dominated Clostridium cluster IV, which accounted 79.07% total...
The particle breakage and compressibility behavior of sands treated with microbially induced carbonate precipitation (MICP) has been investigated using oedometric compression tests. acid washing technique was used to obtain the calcium (CaCO3) content facilitate quantification by measurement size distribution (PSD). It found that lower for specimens a large CaCO3 content. Particle increased an increase in stress or input work approximately same In addition, given applied work, MICP-treated...
This study has contributed to the technology of soil stabilization via biocementation based on microbially induced calcite precipitation. The newly described method in situ by surface percolation dry under free draining environment is tested for its up-scaling potential. Then, 2-m columns one-dimensional trials indicated that repeated treatments fine sand (<0.3 mm) could lead clogging closed at injection end, resulting limited cementation depth less than 1 m. problem was not observed 2 m...
Microbially induced calcite precipitation (MICP) has attracted significant attention as a promising in situ ground reinforcement method, particularly for the improvement of existing structure foundations. Prior to its widespread application, further study is required answer questions that seek improve understanding fundamental mechanisms cementation. This paper focuses on influence particle shape stiffness and strength MICP-treated glass beads through series unconfined compression tests. The...
Limited research has been reported on strength improvement of biocemented soils in relation to crystal patterns microbially induced calcite (CaCO3) precipitation (MICP). In this study, sand samples were treated under the coeffect different bacterial culture (BC) and cementation solution (CS) concentrations evaluate optimum BC CS combination that yields highest soil strength. It was found for lower conditions (0.25 M), higher produced stronger samples, whereas (0.5 M or 1 more dominant...
This paper presents a novel approach for soil stabilization by microbially induced carbonate precipitation (MICP) using new urease active catalyzer, named herein as “bioslurry”. The bioslurry, which was produced from the reaction between bacterial culture and 400 mmol/L of CaCl 2 urea, is pre-formed crystals consisting CaCO 3 plus imbedded cells. By mixing bioslurry with sand, more than 95% retained in matrix result mechanical trapping mechanism, leading to high resistance flushing...
Abstract For a long time in the practice of geotechnical engineering, soil has been viewed as an inert material, comprising only inorganic phases. However, microorganisms including bacteria, archaea and eukaryotes are ubiquitous have capacity capability to alter bio‐geochemical processes local environment. The cumulative changes could consequently modify physical, mechanical, conductive chemical properties bulk matrix. In recent years, topic bio‐mediated geotechnics gained momentum...