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DOI for Scientific and Technical Data
10.4228/ZALF.2013.298
Title
Data sets of experimental study on retardation of a heavy NAPL vapor in partially saturated porous media
Citation
Kleinknecht, Simon (2016): Data sets of experimental study on retardation of a heavy NAPL vapor in partially saturated porous media, Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e.V.[doi: 10.4228/ZALF.2013.298]
Publisher
Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e.V.
Dates
Accepted:2016
Collected:2013/2016
Contributor(s)
DataCollector: Kleinknecht, Simon
ContactPerson: Kleinknecht, Simon
HostingInstitution: Versuchseinrichtung für Grundwasser- und Altlastensanierung, Universität Stuttgart
ProjectManager: Braun, Jürgen
RegistrationAgency: DataCite
Creator(s)
Kleinknecht, Simon
Subject(s)
Vadose Zone
Porous Medium
VOC
Vapor Retardation
Laboratory Experiments
Breakthrough Curve
Contaminant Transport

AGROVOC:
Laboratory experimentation

GEMET:
Volatile organic compound
Laboratory experiment
Description
Large-scale column experiments were performed to quantify partitioning processes responsible for the retardation of carbon disulfide (CS2) vapor in partially saturated porous media.
The experiments were conducted in large, vertical columns (i.d. = 0.109 m) of 2 m length packed with different porous media. For experiments 1-16, fine glass beads (soda-lime glass, Sigmund Lindner, Warmensteinach, Germany) were used as medium; for experiments 17-37, Geba fine sand (Quarzsande GmbH, Eferding, Austria) was used. A slug of CS2 vapor and the conservative tracer argon was injected at the bottom of the column followed by a nitrogen chase. Concentrations of CS2 and argon were measured at the top outlet of the column using two gas chromatographs (GC-PID and GC-TCD). Temporal-moment analysis (TMA) for step input was employed to evaluate concentration breakthrough curves and to calculate seepage velocity (v), dispersion (D) and retardation (R). The data sets contain for each experiment the raw data of the GC measurements of both CS2 and argon, temperature, pressure, and tensiometer recordings as well as the results of the TMA.
Language
English
Related Datasets
IsDocumentedBy: 10.5194/hess-2016-440
Data Format
csv
Type of Resource
Dataset: Table
Rights
Creative Commons BY 4.0
Parameters
(parameter; compartment; instrument; method)
Raw signal of carbon disulfide concentration measurement (mV*min); porous substrates; Gas chromatograph with photionisation detector; The raw signal or area of the carbon disulfide peak as a result of the peak integration obtained from the GC-PID software
Water saturation; porous substrates; Weighing and PC technology; Calculated from the pore volume of the porous medium and weight measurements before and after imbibition and drainage
Raw signal of argon concentration measurement (mV*min); porous substrates; Gas chromatograph with thermal conductivity detector; The raw signal or area of the argon peak as a result of the peak integration obtained from the GC-TCD software
Capillary pressure (hPa); porous substrates; Custom-built tensiometer; Measurement principle from soil sciences to determine the suction of a porous medium
Slug duration (h); porous substrates; stop watch; sample time intervals
Normalized first-order moment (in pore volume) of breakthrough curve (Vol%); porous substrates; PC technology; Temporal-moment analysis of breakthrough curves according to Yu et al. (1999); calculated
Normalized first-order moment (in hours) of breakthrough curve (h); porous substrates; PC technology; Temporal-moment analysis of breakthrough curves according to Yu et al. (1999); calculated
Velocity of concentration front (cm/h); porous substrates; PC technology; Temporal-moment analysis of breakthrough curves according to Cirpka & Kitanidis (2000); calculated
Dispersion coefficient (cm²/s); porous substrates; PC technology; Temporal-moment analysis of breakthrough curves according to Cirpka & Kitanidis (2000); calculated
Pressure (hPa); Air; Pressure transducer; Physical pressure (force per receiving area) is converted into an electrical variable (U, I)
Temperature (°C); Air; Pt100 sensor, Titec GmbH; Temperature dependency of platin
Structure of Data Table(s)

Column nameParameterUnitDescription
​POROUS_SUBSTRATE

​Type of porous medium used in experiment; #1: SiLi beads Typ S 100..200 µm, #2 Fine sand Dorfner Geba weiß 63..350 µm
​SERIES

​Number which identifies the series of experiments
EXPERIMENT  Number which defines the experiment and corresponds to the table showing the relevant experimental parameters
​VELOCITY
​cm/h​Velocity of slug injection which was used as a experimental design parameter
PID_CS2_AREARaw signal of carbon disulfide concentration measurement  mV * minThe raw signal or area of the carbon disulfide peak as a result of the peak integration obtained from the GC-PID software - actual slug injection (in millivolts * minutes)
PID_CS2_AREA_INJRaw signal of carbon disulfide concentration measurement mV *minThe raw signal or area of the carbon disulfide peak as a result of the peak integration obtained from the GC-PID software  - concentration measurement prior to actual injection (in millivolts * minutes)
PID_CS2_AREA_PLATEAURaw signal of carbon disulfide concentration measurement mV * minThe raw signal or area of the carbon disulfide peak as a result of the peak integration obtained from the GC-PID software - isolated measurements during steady state (in millivolts * minutes)
PID_CS2_CONCCarbon disulfide concentration g/m³Concentration of carbon disulfide from GC-PID measurement -  concentration measurement during actual slug injection. Calculated: PID_CS2_AREA * (c_target / PID_CS2_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_CS2 = 0.5 g/m3
PID_CS2_CONC_INJCarbon disulfide concentration g/m³Concentration of carbon disulfide from GC-PID measurement - concentration measurement prior to actual injection.
Calculated: PID_CS2_AREA * (c_target / PID_CS2_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_CS2 = 0.5 g/m3
PID_CS2_NORMCONCCarbon disulfide concentration g/m³Normalized concentration of carbon disulfide from GC-PID measurement - concentration measurement during actual slug injection. Calculated: PID_CS2_AREA * (c_target / PID_CS2_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_CS2 = 0.5 g/m3
PID_CS2_NORMCONC_INJCarbon disulfide concentration g/m³Normalized concentration of carbon disulfide from GC-PID measurement - concentration measurement prior to actual injection. Calculated: PID_CS2_AREA * (c_target / PID_CS2_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_CS2 = 0.5 g/m3
PID_CS2_NORMCONCPLATEAUCarbon disulfide concentration g/m³Concentration of carbon disulfide from GC-PID measurement normalized with mean steady state concentration - concentration measurement during actual slug injection.
Calculated: PID_CS2_AREA * (c_target / PID_CS2_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_CS2 = 0.5 g/m3
PID_DT_INJAbsolute timehTime stamp (in hours) of carbon disulfide concentration measurement prior to actual start of slug injection (t = 0)
PID_DT_STEPSAbsolute timehTime interval (in hours) between two measurements; used for mass balance calculation
PID_DT_STARTAbsolute timehTime stamp (in hours) of carbon disulfide concentration measurement from start of slug injection (t = 0)
PID_DT_STOPAbsolute timehTime stamp (in hours) of carbon disulfide concentration measurement from stop of slug injection (t = 0)
PID_PV_EFF_START

Normalized time

 Vol%Normalized time stamp (in pore volume) of carbon disulfide concentration measurement from start of slug injection (t = 0). Calculated:
PID_DT_START * (Flow rate / Pore Volume)
PID_PV_EFF_STOPNormalized time Vol%Normalized time stamp (in pore volume) of carbon disulfide concentration measurement from stop of slug injection (t = 0). Calculated: PID_DT_STOP * (Flow rate / Pore Volume)
PID_CS2_CUM_MASS

Cumulative mass

mgCumulative recovered mass of carbon disulfide calculated from flow rate and concentration measurements. Calculated: Flow rate * PID_DT_START * PID_CS2_CONC
PID_CS2_NORM_MASS

Normalized cumulative mass


Cumulative recovered mass of carbon disulfide calculated from flow rate and concentration measurements and normalized by the total injected mass. Calculated: PID_CS2_CUM_MASS / (mean(PID_CS2_CONC_INJ) * Flow rate * TCD_T_SLUG)
M_FRONT_CS2_PVNormalized first-order moment (in pore volume) of breakthrough curveVol%Normalized first-order moment (in pore volume) of carbon disulfide obtained from the temporal-moment analysis of the slug breakthrough curve
M_FRONT_CS2_TNormalized first-order moment (in hours) of breakthrough curvehNormalized first-order moment (in hours) of carbon disulfide obtained from the temporal-moment analysis of the slug breakthrough curve
V_FRONT_CS2Velocity of concentration frontcm/hVelocity of the concentration front of carbon disulfide obtained from the temporal-moment analysis of the slug breakthrough curve
D_FRONT_CS2Dispersion coefficient​cm²/sDispersion coefficient of carbon disulfide obtained from temporal-moment analysis of the slug breakthrough curve
M_TAIL_CS2_PVNormalized first-order moment (in pore volume) of breakthrough curve Vol%Normalized first-order moment (in pore volume) of carbon disulfide obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve
M_TAIL_CS2_TNormalized first-order moment (in hours) of breakthrough curvehNormalized first-order moment (in hours) of carbon disulfide obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve
V_TAIL_CS2Velocity of concentration frontcm/hVelocity of the concentration front of carbon disulfide obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve  calculated
D_TAIL_CS2Dispersion coefficient​cm²/sDispersion coefficient of carbon disulfide obtained from temporal-moment analysis of the nitrogen chase breakthrough curve
R_FRONTRetardation coefficient of the slug
Retardation coefficient of the slug caculated from the ratio of the normalized first-order moments of carbon disulfide and argon, calculated: M_FRONT_CS2_PV / M_FRONT_AR_PV
R_TAILRetardation coefficient of the nitrogen chase
Retardation coefficient of the nitrogen chase caculated from the ratio of the normalized first-order moments of carbon disulfide and argon, calculated:
M_TAIL_CS2_PV / M_TAIL_AR_PV
TCD_Ar_AREARaw signal of argon concentration measurementmV * min The raw signal or area of the argon peak as a result of the peak integration obtained from the GC-TCD software - concentration measurement during actual slug injection
TCD_AR_AREA_INJRaw signal of argon concentration measurementmV * minThe raw signal or area of the argon peak as a result of the peak integration obtained from the GC-TCD software  - concentration measurement prior to actual injection
TCD_AR_CONCArgon concentrationg/m³Concentration of argon from GC-TCD measurement - concentration measurement during actual slug injection. Calculated: TCD_AR_AREA * (c_target / TCD_AR_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_Ar = 0.025 g/m3
TCD_AR_CONC_INJArgon concentrationg/m³Concentration of argon from GC-TCD measurement - concentration measurement prior to actual injection, Calculated: TCD_AR_AREA * (c_target / TCD_AR_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_Ar = 0.025 g/m3
TCD_AR_NORMCONCArgon concentration

g/m³

Normalized concentration of argon from GC-TCD measurement - concentration measurement during actual slug injection, Calculated: TCD_AR_AREA * (c_target / TCD_AR_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_Ar = 0.025 g/m3
TCD_AR_NORMCONC_INJArgon concentrationg/m³Normalized concentration of argon from GC-TCD measurement - concentration measurement prior to actual injection, Calculated: TCD_AR_AREA * (c_target / TCD_AR_AREA_INJ)
Remark: c_target is the concentration of the slug mixture c_Ar = 0.025 g/m3
TCD_DT_INJAbsolute timehTime stamp (in hours) of argon concentration measurement prior to actual start of slug injection (t = 0)
TCD_DT_STEPSAbsolute timehTime interval (in hours) between two measurements; used for mass balance calculation
TCD_DT_STARTAbsolute timehTime stamp (in hours) of argon concentration measurement from start of slug injection (t = 0)
TCD_DT_STOPAbsolute timehTime stamp (in hours) of argon concentration measurement from stop of slug injection (t = 0)
TCD_T_SLUGSlug durationhSlug duration in hours
TCD_PV_SLUGNormalized slug durationVol%Normalized slug duration (in pore volume), calculated:
TCD_T_SLUG * (Flow rate / Pore Volume)
TCD_PV_EFF_STARTNormalized timeVol%Normalized time stamp (in pore volume) of argon concentration measurement from start of slug injection (t = 0), Calculated:
TCD_DT_START * (Flow rate / Pore Volume)
TCD_PV_EFF_STOPNormalized timeVol%Normalized time stamp (in pore volume) of argon concentration measurement from stop of slug injection (t = 0); calculated:
TCD_DT_STOP * (Flow rate / Pore Volume)
TCD_AR_CUM_MASSCumulative massmgCumulative recovered mass of argon calculated from flow rate and concentration measurements, Calculated: Flow rate * TCD_DT_START * TCD_AR_CONC
TCD_AR_NORM_MASSNormalized cumulative mass
Cumulative recovered mass of argon calculated from flow rate and concentration measurements and normalized by the total injected mass, calculated: TCD_AR_CUM_MASS / (mean(TCD_AR_CONC_INJ) * Flow rate * TCD_T_SLUG)
S_WWater saturation
Mean water saturation of the porous medium
M_FRONT_AR_PVNormalized first-order moment (in pore volume) of breakthrough curveVol%Normalized first-order moment (in pore volume) of argon obtained from the temporal-moment analysis of the slug breakthrough curve
M_FRONT_AR_TNormalized first-order moment (in hours) of breakthrough curvehNormalized first-order moment (in hours) of argon obtained from the temporal-moment analysis of the slug breakthrough curve
V_FRONT_AR_TVelocity of concentration frontcm/hVelocity of the concentration front of argon obtained from the temporal-moment analysis of the slug breakthrough curve
D_FRONT_AR_TDispersion coefficient cm²/sDispersion coefficient of argon obtained from temporal-moment analysis of the slug breakthrough curve
M_TAIL_AR_PVNormalized first-order moment (in pore volume) of breakthrough curveVol%Normalized first-order moment (in pore volume) of argon obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve
M_TAIL_AR_TNormalized first-order moment (in hours) of breakthrough curvehNormalized first-order moment (in hours) of carbon disulfide obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve
V_TAIL_AR_TVelocity of concentration frontcm/hVelocity of the concentration front of argon obtained from the temporal-moment analysis of the nitrogen chase breakthrough curve
D_TAIL_AR_TDispersion coefficient cm²/sDispersion coefficient of argon obtained from temporal-moment analysis of the nitrogen chase breakthrough curve
TEMP_DTAbsolute timehTime in hours from start of injection of Temp data set
TEMP_PV_EFFNormalized timeVol%Time in pore volumes from start of injection of Temp data set, calculated:
Temp_DT * (Flow rate / Pore Volume)
TEMP_AMBTemperature °C Air temperature in laboratory
TEMP_WBTemperature°C Temperature recordings of the water bath used for tempering the injected gas mixture and the gas-humidifying scrubber bottle
TEMP_DIFFP100PressurehPaPressure transducer recordings connected to the injection section at the column inlet
TEMP_T1Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T1 in the porous medium
TEMP_T2Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T2 in the porous medium
TEMP_T3Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T3 in the porous medium
TEMP_T4Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T4 in the porous medium
TEMP_T5Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T5 in the porous medium
TEMP_T6Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T6 in the porous medium
TEMP_T7Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T7 in the porous medium
TEMP_T8Capillary pressurehPaCapillary pressure recordings from tensiometer measurements installed at position T8 in the porous medium
AMB_DTAbsolute timehTime in hours from start of injection of Amb data set
AMB_PV_EFFNormalized timeVol%Time in pore volumes from start of injection of Amb data set. Calculated:
AMB_DT * (Flow rate / Pore Volume)
AMB_PRESSPressurehPaAbsolute pressure recordings in the laboratory hall
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