Hydrogel-Assisted Enzyme-Induced Carbonate Mineral Precipitation

Hamdan, Nasser; Zhao, Zhi; Mujica, Maritza; Kavazanjian, Edward; He, Ximin

doi:10.1061/(asce)mt.1943-5533.0001604

Cited by 56 publications

(24 citation statements)

References 16 publications

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“…Engineered (bio)mineralization or ureolysis‐induced calcium carbonate precipitation (UICP) techniques (Equation [1]) have been an increasingly popular area of research for use in ground improvement, construction materials, remediation, and subsurface applications 1‐8 . In fact, ground improvement with mineralization strategies has been studied extensively resulting in a new field of study described as bio‐mediated geotechnics 2,9‐13 . In the subsurface, where temperatures increase with increasing depth, engineered mineralization has the potential to be utilized in place of traditional cement or grout for remediating wellbore integrity, sealing fractures in concrete and rock formations utilized for fluid storage (eg, CO 2 , natural gas, or H 2 ), controlling flow paths for oil and gas recovery, or creating subsurface barriers for water pollution control 14‐19 …”

Section: Introductionmentioning

confidence: 99%

“…UICP, utilizing the ureolytic bacterium Sporosarcina pasteurii or plant‐based sources of urease, has been researched and used extensively in practice 11,18,22‐30 . The focus of this investigation were plant‐based sources of the enzyme, because of the potential limitations in using bacteria, such as S. pasteurii , in higher temperature applications, since S. pasteurii has been shown to not grow above 40°C 31 …”

Section: Introductionmentioning

confidence: 99%

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Temperature‐dependent inactivation and catalysis rates of plant‐based ureases for engineered biomineralization

Feder

Akyel

Morasko

et al. 2020

Engineering Reports

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Engineered (bio)mineralization uses the enzyme urease to catalyze the hydrolysis of urea to promote carbonate mineral precipitation. The current study investigates the influence of temperature on ureolysis rate and degree of inactivation of plant‐sourced ureases over a range of environmentally relevant temperatures. Batch experiments at 30°C demonstrated that jack bean meal (JBM) has a 1.7 to 56 times higher activity (844 μmol urea hydrolyzed g−1 JBM min−1) than the other tested plant‐sourced ureases (soybean, pigeon pea and cottonseed). Hence, ureolysis and enzyme inactivation rates were evaluated for JBM at temperatures between 20°C and 80°C. A combined first‐order urea hydrolysis and first‐order enzyme inactivation model described the inactivation of urease over the investigated range of temperatures. The temperature‐dependent rate coefficients (kurea) increased with temperature and ranged from 0.0018 at 20°C to 0.0249 L g−1 JBM min−1 at 80°C; JBM urease became ≥50% inactivated in as little as 5.2 minutes at 80°C and in as long as 2238 minutes at 50°C. The combined urea hydrolysis kinetics and enzyme inactivation model provides a mathematical relationship useful for the design of biomineralization technologies and can be incorporated into reactive transport models.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature‐dependent inactivation and catalysis rates of plant‐based ureases for engineered biomineralization

Feder

Akyel

Morasko

et al. 2020

Engineering Reports

View full text Add to dashboard Cite

show abstract

“…1, stiffness [115,118,[123][124][125][126][127][128][129][130][131][132], and thermal conductivity [133,134], etc. Some studies also proposed to further enhance the strength of bio-cemented soil by adding other materials, such as lime [42], fiber [54,125,[135][136][137][138][139][140][141][142][143], hydrogelassisted [144], the hydrophilic polymer [145,146], and alginate [147]. MICP based soil improvement involves a highly complex biological, physical and chemical process, which is mainly affected by the following four aspect factors: 1) soil properties, 2) urease producing bacteria (UPB) characteristics, 3) cementation solution (CS) parameters, and 4) treatment process.…”

Section: Strength Enhancement Of Soilmentioning

confidence: 99%

“…Wang et al [207] found that a low bacterial density facilitated producing fewer crystals with larger average crystals volume. Zhao et al [143,208] proposed to use the activated carbon and activated carbon-fiber felt to improve the bacterial retention ability and thus the yield of calcium carbonate. Moreover, Rowshanbakht et al [201] reported that reducing the injected volume of bacteria solution to up to one-third of the pore volume did not significantly affect the performance improvement of the MICP treatment.…”

Section: Strength Enhancement Of Soilmentioning

confidence: 99%

Recent development in biogeotechnology and its engineering applications

Cui

Chu

2021

Front. Struct. Civ. Eng.

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Microbial geotechnology or biogeotechnology is a new branch of geotechnical engineering. It involves the use of microbiology for traditional geotechnical applications. Many new innovative soil improvement methods have been developed in recent years based on this approach. A proper understanding of the various approaches and the performances of different methods can help researchers and engineers to develop the most appropriate geotechnical solutions. At present, most of the methods can be categorized into three major types, biocementation, bioclogging, and biogas desaturation. Similarities and differences of different approaches and their potential applications are reviewed. Factors affecting the different processes are also discussed. Examples of up-scaled model tests and pilot trials are presented to show the emerging applications. The challenges and problems of biogeotechnology are also discussed.

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“…Therefore, controlling the rate of precipitation is of the key factors in achieving uniform treatment with UACP. Hamdan [22] utilized hydrogel to enhance EICP by reaction product (calcite) around the soil particles. This hydrogel-assisted enzyme-induced carbonate precipitation showed promise to have a uniform distribution of calcite around soil particles.…”

Section: Spatial Distribution Of the Precipitationmentioning

confidence: 99%

Soil Stabilization using Calcium Carbonate Precipitation via Urea Hydrolysis

Arab¹

2019

World Congress on Civil, Structural, and Environmental Engineering

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Soil improvement techniques of granular soils via Microbially Induced Calcite Precipitation (MICP) and Enzyme Induced Calcite Precipitation (EICP) techniques have attracted an increasing attention over the past decade. MICP and EICP rely upon the hydrolysis of urea catalyzed by the urease enzyme. However, the MICP is a process in which living organisms produce the urease enzyme. These techniques use biogeochemical reactions to precipitate calcium carbonate (CaCO3) especially in granular soils. Calcite precipitation improves the soil shear strength by introducing calcite to fill pores and bind soil particles. In this study, a review on successful development and implementation of the urea hydrolysis techniques is presented. In addition, discussion on potential advantages and limitations of urea hydrolysis techniques is included.

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Hydrogel-Assisted Enzyme-Induced Carbonate Mineral Precipitation

Cited by 56 publications

References 16 publications

Temperature‐dependent inactivation and catalysis rates of plant‐based ureases for engineered biomineralization

Temperature‐dependent inactivation and catalysis rates of plant‐based ureases for engineered biomineralization

Recent development in biogeotechnology and its engineering applications

Soil Stabilization using Calcium Carbonate Precipitation via Urea Hydrolysis

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