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“MSI-N901T” VOCs Purification Iron Powder

The surface of our MSI-N901T iron powder is coated with a hydrogenation catalyst to increase the speed of VOCs decomposition by the two effects.

MSI-N901T VOC Purification Iron Powder
Function 1 Dechlorinator + Hydrogenation catalyst, Function 2 Local cell reaction between catalyst and iron

Surface of Pure Iron is Coated with a Catalyst

Cross-sectional EPMA image of iron powder

Cross-sectional EPMA image of iron powder
(The areas in red are the catalyst)

SEM image of iron powder surface

SEM image of iron powder surface
(The rough deposition is the catalyst)

Characteristics of MSI-N901T

Excellent Decomposition Performance for Volatile Organic Compounds (VOCs)

This product is capable of quickly decomposing tetrachloroethylene, trichloroethylene, and other VOCs to environmental standards. This product is also capable of dissolving degradation products such as -1,2-dichloroethylene and chloroethylene.

Economic Advantages

Utilizing our expertise in still mill technologies, we have developed an advanced material that requires minimal additives to function. This product is also less expensive than conventional VOC decomposition iron powder.

Excellent Usability

This product can be used in various methods such as mixing into soil, purification walls, and high-pressure, in-ground injection and agitation.
This product is also effective in purification of groundwater as well as soil.

Other Characteristics

  • High reactivity due to the use of High-purity iron
  • Verified safety - Contains no heavy metals or other regulated substances
  • Produces minimal dust and easy to handle

Comparison of VOC decomposition activity

Comparison of VOC Decomposition Activity

*The provided data is the result of laboratory testing performed according to internal testing methods. Corresponding performance at actual sites is not guaranteed.

Comparison of decomposition performance by VOC

VOC Reaction speed
constant [h-1]
Number of days needed to reach reduction of 1/100
1,1,1-trichloroethane -0.04 5
1,1,2-trichloroethane -0.04 5
1,1-dichloroethylene -0.05 4
cis- 1,2- dichloroethylene -0.06 3
Trichloroethylene -0.04 5
Tetrachloroethylene -0.02 10
cis-1,3-dichloropropene -0.09 2
trans-1,3-dichloropropene -0.09 2
Carbon tetrachloride -0.03 6
chloroethylene -0.02 10

*The provided data is the result of laboratory testing performed according to internal testing methods. Corresponding performance at actual sites is not guaranteed.

Decomposition Performance of Iron Powder by VOCs

MSI-N901T Evaluation via Water Testing

Substance Carbon number Chemical formula Environmental standard
[mg/L]
Purification performance
(O mark indicates that k < -0.01)
Dichloromethane C1 CH2Cl2 0.02
Carbon tetrachloride CCl4 0.002
1,2- dichloroethane C2
C-C
Cl-CH2CH2-Cl 0.004
1,1,1-trichloroethane CH3-C-Cl3 1
1,1,2-trichloroethane Cl-CH2CH-Cl2 0.006
Chloroethylene C2
C=C
CHl2=CHCl 0.002
1,1 - dichloroethylene CH2=C-Cl2 0.1
cis-1,2-dichlorethylene Cl-CH=CH-Cl 0.04
Trichloroethylene ClCH=CCl2 0.03
Tetrachloroethylene Cl2C=CCl2 0.01
cis-1,3-dichloropropene C3
C-C=C
Cl-CH2-
CH=CH-Cl
0.002
Trans-1,3-dichloropropene 0.002
Benzene C6 C6 0.01

*A reaction speed constant k of -0.01 represents the speed constant by which a 1/10 VOC concentration level requires 10 days.
If the 1/10 VOC concentration level requires 5 days, then the k is -0.02. If the 1/10 VOC concentration level requires 2 days, then the k is -0.05.
*The provided data is the result of laboratory testing performed according to internal testing methods. Corresponding performance at actual sites is not guaranteed.

Overview of Iron Powder & Foam Method

Partial Previous Results of Iron Powder Purification

Pollutants Tested area
(m2)
Approximate concentration Depth
(GL-m)
Agents Method Soil type
PCE, TCE, cis-1,2-DCE 500 Up to 10,000X Up to 8.0 Iron powder +
Bio-material
High-pressure injection Soil with a lot of
clay Sandy soil
TCE, cis-1,2-DCE 4,000 Up to 1,000X Up to 1.3 Iron powder +
Bio-material
Mechanical agitation Soil with a lot of clay
PCE, TCE ,cis-1,2-DCE 100 Up to 1,000X Up to 9.0 Iron powder +
Bio-material
High-pressure injection Soil with a lot of clay
PCE, TCE 430 Up to 10,000X Up to 8 Iron powder Mechanical agitation Gravel
cis-1,2-DCE 1,000 Up to 1,000X Up to 2 Iron powder Mixed soil Loam
cis-1,2-DCE 100 Up to 100X Up to 3 Iron powder Mixed with foam
(mechanical agitation)
Soil with a lot of clay
TCE, cis-1,2-DCE 200 Up to 1,000X Up to 25 Iron powder High-pressure injection Loam
Soil with a lot of clay
PCE, cis-1,2-DCE 120 Up to 1,000X Up to 6 Iron powder +
Bio-material
Mixed with foam
(mechanical agitation)
Soil with a lot of clay

*The provided data is the result of laboratory testing performed according to internal testing methods. Corresponding performance at actual sites is not guaranteed.

Contact Environment Project Dept.
TEL: +81-3-5445-5208 FAX: +81-3-5445-5220
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