Estimation of transport and degradation parameters for naphthalene and anthracene: influence of mass transfer on kinetics

  title={Estimation of transport and degradation parameters for naphthalene and anthracene: influence of mass transfer on kinetics},
  author={C. Owabor and S. Ogbeide and A. Susu},
  journal={Environmental Monitoring and Assessment},
The method of temporal moment solutions (MOM) for one-dimensional convective–dispersive solute transport involving linear equilibrium sorption and first-order degradation for time pulse sources has been applied to analyze experimental data from a soil microcosm reactor. Estimation of the pore water velocity V for a nonreactive solute was aided by the use of only the first normalized moment while the dispersion coefficient D, first-order degradation rate constant λ, and the retardation factor R… Expand
The mathematical solution to a one-dimensional advective-dispersive solute transport model with linear equilibrium sorption and first-order degradation was carried out in this study. Simulation wasExpand
Transport of selenium and its modeling through one dimensional saturated soil columns
The selenium, an essential nutrient and potentially toxic element to human and animal health, is widely used in agriculture and medicine. Soil is the transitional zone through which selenium enteredExpand
Comparative Study of the Adsorption and Desorption Behavior of Single and Multi-Ring Aromatics in Sediment Fractions
The sorption behaviour of benzene, toluene, ethyl benzene, xylene and naphthalene using clay and sand sediments under ambient conditions is examined in this study. Experimental results showed that,Expand
Effects of Different Factors on Water Flow and Solute Transport Investigated by Time Domain Reflectometry in Sandy Clay Loam Field Soil
  • H. Merdun
  • Environmental Science, Medicine
  • Water, Air, & Soil Pollution
  • 2012
The study results suggest that similar experiments with more distinct interactions and modeling studies with different approaches need to be considered for better understanding the complex flow and transport processes in the vadose zone. Expand
Advection and retardation of non-polar contaminants in compacted clay barrier material with organoclay amendment
Abstract Compacted clay liners (CCLs) are widely used as hydraulic barriers in landfills, underground storage tanks, vertical cutoff walls and surface impoundments. Most commonly, the breakthrough ofExpand
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The increased quest for technology and industrialization by a dynamic society, where the fuel requirements of the energy sector and the chemical and petrochemical needs of the chemical and alliedExpand
Microbial diversity and metaproteomic analysis of activated sludge responses to naphthalene and anthracene exposure
The activated sludge process can effectively remove polycyclic aromatic hydrocarbons (PAHs) from wastewater via biodegradation. However, the degradable microorganisms and functional enzymes involvedExpand
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Levels of Some Selected Heavy Metals in Groundwater in Ebubu Community, Eleme, Rivers State, Nigeria
This study was carried out to assess the level of the presence of some selected heavy metals in borehole-drinking water of Ebubu community in Eleme between June and August. Water samples wereExpand
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The method of temporal moment (MOM) formulae was applied to analyse breakthrough data from a laboratory column study of atrazine, hexazinone and rhodamine WT transport in volcanic pumice sand, as well as experimental data from the literature, finding that the MOM fitted breakthrough curves with tailing better than curve fitting. Expand
Moment analysis to estimate degradation rate constants from leaching experiments
First-order degradation rate constants (y) are often estimated from the results of solute leaching experiments by using curve-fitting procedures. However, uniquaress problems can make curve-fiting aExpand
Solute Transport for Steady‐State and Transient Flow in Soils with and without Macropores
The effect of flow rate and flow regime on solute transport in two soils, a sandy-loam (Glossudalf) and loam (Udifluvent), was investigated. For each soil type, leaching experiments were carried outExpand
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Potential surface water and groundwater contaminants include herbicides that are applied postemergence. Although applied to the plant canopy, a portion of any application reaches the soil eitherExpand
Sorption Behavior of Polycyclic Aromatic Hydrocarbons in Soil–Water System Containing Nonionic Surfactant
This study examined the sorption behavior of PAHs (solutes) in soil-water systems containing surfactants with the objectives of better understanding the fate of contaminants in natural systems andExpand
Evaluation of alachlor degradation under transport conditions
Degradation is an important process that influences pesticide fate in the environment. In this study, we present a new methodology to evaluate pesticide degradation under transport conditions usingExpand
Biodegradation kinetics of aromatic hydrocarbon mixtures by pure and mixed bacterial cultures.
It is demonstrated that the simple models do not accurately predict the outcome of these biodegradation experiments, and the development of a new model for substrate mixtures, the sum kinetics with interaction parameters (SKIP) model is described. Expand
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Degradation rates achieved using the TPPB and S. aromaticivorans B0695 are much greater than any others previously reported for an ex situ PAH biodegradation system operating with a single species. Expand
Bioavailability and Biodegradation Kinetics Protocol for Organic Pollutant Compounds to Achieve Environmentally Acceptable Endpoints during Bioremediation
The experimental protocol using polycyclic aromatic hydrocarbons (PAHs) as the test contaminants results in the measurement of biokinetic parameters which can be used to quantitate both ex situ and in situ bioremediation rates and assess the attainable endpoints. Expand
Rhodamine WT and Bacillus subtilis Transport through an Alluvial Gravel Aquifer
A field study was conducted to characterize the transport of rhodamine WT dye and endospores of the bacterium Bacillus subtilis through preferential flowpaths in an alluvial gravel aquifer usingExpand