In: Journal of Hydrology and Hydromechanics, vol. 63, no. 2
Ahmad Firouzi - Mehdi Homaee - Erwin Klumpp - Roy Kasteel - Wolfgang Tappe
Detaily:
Rok, strany: 2015, 102 - 109
Kľúčové slová:
Bacteria transport; Calcareous soil; Pseudomonas fluorescens; Saturated flow.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
Study of bacterial transport and retention in soil is important for various environmental applications such as
groundwater contamination and bioremediation of soil and water. The main objective of this research was to quantitatively
assess bacterial transport and deposition under saturated conditions in calcareous soil. A series of leaching experiments
was conducted on two undisturbed soil columns. Breakthrough curves of Pseudomonas fluorescens and Cl were
measured. After the leaching experiment, spatial distribution of bacteria retention in the soil columns was determined.
The HYDRUS-1D one- and two-site kinetic models were used to predict the transport and deposition of bacteria in soil.
The results indicated that the two-site model fits the observed data better than one-site kinetic model. Bacteria interaction
with the soil of kinetic site 1 revealed relatively fast attachment and slow detachment, whereas attachment to and detachment
of bacteria from kinetic site 2 was fast. Fast attachment and slow detachment of site 1 can be attributed to soil
calcium carbonate that has favorable attachment sites for bacteria. The detachment rate was less than 0.02 of the attachment
rate, indicating irreversible attachment of bacteria. High reduction rate of bacteria was also attributed to soil calcium
carbonate.
Ako citovať:
ISO 690:
Firouzi, A., Homaee, M., Klumpp, E., Kasteel, R., Tappe, W. 2015. Bacteria transport and retention in intact calcareous soil columns under
saturated flow conditions. In Journal of Hydrology and Hydromechanics, vol. 63, no.2, pp. 102-109. 0042-790X (until 2019) .
APA:
Firouzi, A., Homaee, M., Klumpp, E., Kasteel, R., Tappe, W. (2015). Bacteria transport and retention in intact calcareous soil columns under
saturated flow conditions. Journal of Hydrology and Hydromechanics, 63(2), 102-109. 0042-790X (until 2019) .