Heavy metals - Revision history

IsabellaA at 17:18, 11 July 2012

2012-07-11T17:18:27Z

IsabellaA at 17:11, 11 July 2012

2012-07-11T17:11:29Z

IsabellaA at 16:41, 11 July 2012

2012-07-11T16:41:46Z

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IsabellaA at 16:30, 11 July 2012

2012-07-11T16:30:49Z

IsabellaA at 17:13, 10 July 2012

2012-07-10T17:13:30Z

IsabellaA at 17:12, 10 July 2012

2012-07-10T17:12:57Z

IsabellaA at 17:10, 10 July 2012

2012-07-10T17:10:05Z

IsabellaA at 17:09, 10 July 2012

2012-07-10T17:09:27Z

IsabellaA at 17:02, 10 July 2012

2012-07-10T17:02:57Z

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IsabellaA: Blanked the page

2012-07-10T16:43:50Z

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@@ Line 402: / Line 402: @@
   LAGRANGEANE                   : 1
   LAGRANGIAN                    : 1
-−
 ==== File Lagrangian_X.dat ====

@@ Line 392: / Line 392: @@
 == Lagrangian Applications ==
 === Example input files ===
 ==== File Lagrangian_X.dat ====

@@ Line 1: / Line 1: @@
 In MOHID the distribution of contaminants is parameterized by using the ratio between the adsorbed particulate concentration and the dissolved concentration (see [[Adsorption/Desorption]] ). Physically, the partition coefficient (Johansson et al., 2001) illustrates particle affinity and represents the chemical equilibrium of numerous processes such adsorption onto particulate matter, precipitation and dissolution. Pollutants transport in the adsorbed phase is strongly connected with cohesive sediment transport due to the affinity of many contaminants for the solid phase. Once adsorbed to the sediments, these substances are transported by the sediments (Fernandes L., 2005).
@@ Line 30: / Line 31: @@
 The transfer rate is equal to r for Rs > 1 and equal to  r x Rs for  Rs<1
-== Example input files ==
+=== Example input files ===
-== File WaterProperty_X.dat ==
+==== File WaterProperty_X.dat ====
   OUTPUT_TIME               : 0.  3600.
@@ Line 206: / Line 208: @@
-== File InterfaceSedimentWater_X.dat ==
+==== File InterfaceSedimentWater_X.dat ====
   OUTPUT_TIME                  : 0  3600
@@ Line 300: / Line 302: @@
-== File FreeVerticalMovement_X.dat ==
+==== File FreeVerticalMovement_X.dat ====
@@ Line 334: / Line 336: @@
-== File Discharges_X.dat ==
+==== File Discharges_X.dat ====
   <begindischarge>

← Older revision		Revision as of 17:13, 10 July 2012
Line 1:		Line 1:
−	In MOHID the distribution of contaminants is parameterized by using the ratio between the adsorbed particulate concentration and the dissolved concentration [[Adsorption/Desorption]]. Physically, the partition coefficient (Johansson et al., 2001) illustrates particle affinity and represents the chemical equilibrium of numerous processes such adsorption onto particulate matter, precipitation and dissolution. Pollutants transport in the adsorbed phase is strongly connected with cohesive sediment transport due to the affinity of many contaminants for the solid phase. Once adsorbed to the sediments, these substances are transported by the sediments (Fernandes L., 2005).	+	In MOHID the distribution of contaminants is parameterized by using the ratio between the adsorbed particulate concentration and the dissolved concentration (see [[Adsorption/Desorption]] ). Physically, the partition coefficient (Johansson et al., 2001) illustrates particle affinity and represents the chemical equilibrium of numerous processes such adsorption onto particulate matter, precipitation and dissolution. Pollutants transport in the adsorbed phase is strongly connected with cohesive sediment transport due to the affinity of many contaminants for the solid phase. Once adsorbed to the sediments, these substances are transported by the sediments (Fernandes L., 2005).

	In MOHID the partition coefficient is defined through a keyword (keyword PARTITION_FRACTION). The concentration of the contaminant in the water is described by the following equations (1) and (2):		In MOHID the partition coefficient is defined through a keyword (keyword PARTITION_FRACTION). The concentration of the contaminant in the water is described by the following equations (1) and (2):

← Older revision		Revision as of 17:12, 10 July 2012
Line 1:		Line 1:
−	In MOHID the distribution of contaminants is parameterized by using the ratio between the adsorbed particulate concentration and the dissolved concentration. Physically, the partition coefficient (Johansson et al., 2001) illustrates particle affinity and represents the chemical equilibrium of numerous processes such adsorption onto particulate matter, precipitation and dissolution. Pollutants transport in the adsorbed phase is strongly connected with cohesive sediment transport due to the affinity of many contaminants for the solid phase. Once adsorbed to the sediments, these substances are transported by the sediments (Fernandes L., 2005).	+	In MOHID the distribution of contaminants is parameterized by using the ratio between the adsorbed particulate concentration and the dissolved concentration [[Adsorption/Desorption]]. Physically, the partition coefficient (Johansson et al., 2001) illustrates particle affinity and represents the chemical equilibrium of numerous processes such adsorption onto particulate matter, precipitation and dissolution. Pollutants transport in the adsorbed phase is strongly connected with cohesive sediment transport due to the affinity of many contaminants for the solid phase. Once adsorbed to the sediments, these substances are transported by the sediments (Fernandes L., 2005).

	In MOHID the partition coefficient is defined through a keyword (keyword PARTITION_FRACTION). The concentration of the contaminant in the water is described by the following equations (1) and (2):		In MOHID the partition coefficient is defined through a keyword (keyword PARTITION_FRACTION). The concentration of the contaminant in the water is described by the following equations (1) and (2):

@@ Line 10: / Line 10: @@
 Cd is the concentration of the contaminant in the dissolved phase (mol/l)
 Cp is the concentration of the contaminant in the particulate phase (mol/l)
 r is the transfer rate from particulate to dissolved phase (1/sec) (keyword PARTITION_RATE)
 pd is the dissolved fraction (dimensionless)
 ps is the solid fraction (dimensionless)
 For each contaminant phase it is necessary to specify opposite phase through the keyword PARTITION_COUPLE. For example, for the contaminant dissolved arsenic, the opposite phase is particulate arsenic.

@@ Line 3: / Line 3: @@
 In MOHID the partition coefficient is defined through a keyword (keyword PARTITION_FRACTION). The concentration of the contaminant in the water is described by the following equations (1) and (2):
-  [[File:image001.gif]]
+  [[File:image002.gif]]            (1)
   [[File:EquationMetals2.gif]]     (2)
@@ Line 20: / Line 20: @@
 In MOHID, the transfer rate depends on the cohesive sediment concentration. A coefficient Rs is defined as (eq.3):
-  [[File:Rs_metals.Gif]]          (3)
+  [[File:Rs_metals.gif]]          (3)
 SedimentRefConcentration is a cohesive sediment reference concentration (keyword SED_REF_CONC). Particulate and dissolved phases of the same contaminant must have equal cohesive sediment reference concentration.