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| Water purification material MiraCarbon's Feature and Comparison |
Feature of water purification material MiraCarbon
Water purification material MiraCarbon is manufactured by PAN type (polyacrylonitrile)
CarbonFiber, and water-soluble sizing treatment is conducted to make it
expand in water. CarbonFiber consists of one bundle of 12,000 ultra-fine,
7 µm filaments in diameter. In water, sizing agents dissolve, and 12,000
filaments expand. Since each filament has patterned indented surface, the
bundle has large surface area. Due to the various characteristics of CarbonFiber,
pollutant or bacteria/microbes are attached to CarbonFiber. Water purification
is conducted because microbes are activated and it decompose and remove
pollutant.
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Adhesion amount of microbes to CarbonFiber |
| The amount of bacterial/microbial adhesion of CarbonFiber is larger than
other fibers. In addition, these microorganisms are less likely to be peeled
off and highly activated. |
| The short term comparison of adhesion amount |
| ① |
The adhesion amount: |
CarbonFiber > Silicon carbide > Kevlar > Polyester > Acrylic |
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| The comparison of adhesioin condition |
| ① |
The adhesion amount: |
CarbonFiber > Nylon >> Polyester |
| ② |
The exfoliation amount: |
Polyester >> Nylon > CarbonFiber |
| ③ |
The activation of microorganisms: |
CarbonFiber > Polyester > Nylon |
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Characteristics and precautions of CarbonFiber |
| Characteristics of CarbonFiber |
| ① |
Light and strong (Mechanical characteristics)
Since CarbonFiber is superior in specific strength and elastic modulus
(specific rigidity) to vegetable fiber and synthetic fiber, it can keep
linear shape in water and can sway with a small action of water. |
| ② |
High dimensional stability and heat resistance (Heat characteristics)
CarbonFiber has low heat expansion coefficient and high dimensional stability.
Hence, even under every temperature, it is less likely to lose its mechanical
characteristics. |
| ③ |
Low electric resistance and high electrical conductivity (Electrical characteristics)
In addition to Low electric resistance, it has high electrical conductivity
(volume resistivity value). Since electric charge is small, bacteria/microbes
are easy to adhere and be activated without no barrier. |
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| Precautions of CarbonFiber |
| ① |
CarbonFiber is thin and has small total elongation, so it might be damaged
or become fluff. Special care shall be paid about type and method when
it is installed to a rapid water or vortex generating place. |
| ② |
CarbonFiber lose its water purification effect when it is taken from water
and dried after it is installed in water. Please keep wet condition when
taking from water temporarily. |
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Comparison between MiraCarbon and String contact media
| Name |
Application |
MiraCarbon |
String contact media |
Note |
| Type |
|
MiraCarbon CFK-1 |
Marketed product |
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| Material |
|
CarbonFiber |
PV,PP,PVA |
|
| Length |
Sales unit |
0.65 |
ｍ |
1.0 |
ｍ |
|
| Weight |
Fiber amount |
20.0 |
ｇ／pc |
50.0 |
ｇ／ｍ |
Standard product |
| Pictures of products |
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| Specific surface area |
Standard |
0.5 |
㎡／ｇ |
0.3～3.0 |
㎡／ｍ |
General value
Standard product |
| Effective |
10 |
㎡／pc |
1.0 |
㎡／ｍ |
| Microbial amount |
Standard |
50 |
ｇ／㎡ |
10 |
ｇ／㎡ |
|
| Effective |
500 |
ｇ／pc |
10 |
ｇ／ｍ |
| Installation quantity |
50㎡／㎥ |
5 |
pcs/㎥ |
50 |
ｍ／㎥ |
Necessary specific surface area |
| 100㎡／㎥ |
10 |
pcs/㎥ |
100 |
ｍ／㎥ |
| 200㎡／㎥ |
20 |
pcs/㎥ |
200 |
ｍ／㎥ |
| Unit price |
JPY(Yen) |
1,400 |
JPY/ pc |
300 |
JPY/ｍ |
Published price |
| Cost |
50㎡／㎥ |
7,000 |
JPY/㎥ |
15,000 |
JPY/㎥ |
Necessary specific surface area |
| 100㎡／㎥ |
14,000 |
JPY/㎥ |
30,000 |
JPY/㎥ |
| 200㎡／㎥ |
28,000 |
JPY/㎥ |
60,000 |
JPY/㎥ |
| Installation situation |
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| General comment |
Although the price of CarbonFiber for water purification material is higher
than that of string contact media, quantity of specific surface area and
microbial adhesion amount is much larger. Therefore installation quantity
from necessary specific surface area is small. As a result, the cost is
low and cost-effectiveness is high. |
※ Because the string contact media has various products of each materials
and makers, we made comparison with a standard product.
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