Title
Impact of Microbial Activity on Flow and Transport in Fractured Chalk: Biodegradation and Clogging Processes,Used
Delivery time: 8-12 business days (International)
The impact of microbial activity on the hydraulic properties of fractured chalk was investigated on a laboratory scale model.The experiments were conducted on six fractured chalk cores (20 cm in diameter, 2344 cm long), each containing a single natural fracture embedded in a porous matrix.Following the initial hydraulic characterization of the fractures, a nutrient solution containing 2,4,6tribromophenol (TBP) as a synthetic model contaminant was continuously injected into the fractures.The various fractures were operated over 250630 days, under different conditions including several flow rates, TBP concentrations and oxygen concentrations.Flow experiments were performed periodically before and during the nutrient solution injection to assess changes in the transmissivities of the fractures.Multitracer tests were conducted several times during the biodegradation experiments in order to identify the twodimensional spatial distribution of the flow patterns.The tracer tests were also used to calculate transport parameters, such as the equivalent fracture aperture and dispersivity.
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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