Microkiller® Antibacterial Water-Treatment Material
“A material that inhibits bacterial growth in water”
When added to water that is not heavily contaminated—such as industrial process water or bath water—Microkiller® antibacterial water-treatment material provides long-term inhibition of bacterial and algal growth.
Microkiller® antibacterial water-treatment material combines long-lasting antibacterial performance with an excellent safety profile, making it suitable for a wide range of applications.
“Helps prevent water deterioration” “Controls putrid odors” “Extends the life of cut flowers”
“Inhibits biofilm formation” “Helps control algae” …
Product Range
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Ceramic Granules
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Plastic Granules
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Crushed
Natural Material |
Nonwoven Fabric
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Porous Material
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Applications
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Air-Conditioning Drain Pans
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Humidifiers
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24-Hour Circulating Bath Systems
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Extending the Life of Cut Flowers
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Water Dispensers
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Important Notes
In water with high protein concentrations or high salt concentrations, such as seawater, Microkiller® antibacterial water-treatment material may not perform to its full potential.
Microkiller® antibacterial water-treatment material is not a high-strength disinfectant. Its effectiveness may be limited in water that already contains large amounts of microorganisms, biofilm, or algae.
Therefore, clean the equipment before using Microkiller®.
Ceramic Granule Test in a Water-Circulation System
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Sample
Dosage
Test-Water Volume
Circulation
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: Ceramic granules
: 5 g
: 5,000 mL (tap water)
: 40 mL/min, 8 hr/day
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A Microkiller® antibacterial water-treatment column (containing 5 g of ceramic granules) was installed in the piping.
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Test Organism
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Dosage
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Test Day
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Day 1
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Day 3
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Day 10
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Day 16
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Legionella pneumophila
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Ceramic-Granule-Treated Sample
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3 g/500 mL
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<10
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<10
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<10
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<10
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Untreated Sample
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—
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<10
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1.1E7
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1.3E6
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3.9E6
Biofilm formed
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In the table above, “E” denotes exponential notation (e.g., 1.0E5 = 1.0 × 10⁵), while “<10” indicates that Legionella pneumophila was not detected.
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Water Condition after Testing (30 Days)
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“In water that is not heavily contaminated, Microkiller® antibacterial water-treatment material also provides a degree of algae control.”
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Ceramic-Granule-Treated Sample
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Untreated Sample
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Q&A
Q: What types of antibacterial water-treatment materials are available?
A: We offer granular materials (ceramic and plastic), crushed materials, porous bodies, and nonwoven fabrics. Other product forms can also be manufactured to meet customer requirements.
Q: How should we determine the appropriate dosage of Microkiller® antibacterial water-treatment material?
A: The required dosage depends on the operating environment, including the frequency of water replacement and the degree of contamination. As a general guideline, for circulation systems with limited water replacement, we recommend a dosage equal to 0.1% of the water volume. Performance should be verified in the customer’s actual operating environment in advance.
Q: Can Microkiller® antibacterial water-treatment material remove or break down biofilm (slime)?
A: Microkiller® antibacterial water-treatment material can inhibit biofilm formation, but it cannot remove or break down biofilm that has already formed. If biofilm is already present, clean the equipment before using Microkiller®.
Q: Does it inhibit algal growth?
A: Microkiller® antibacterial water-treatment material does not readily remove or break down existing algae, but it can inhibit further algal growth. If algae are already present in the equipment, clean the equipment before using Microkiller®.
Q: Can Microkiller® antibacterial water-treatment material be used to treat seawater?
A: The high chloride-ion concentration in seawater reacts with the silver ions in Microkiller® antibacterial water-treatment material to form silver chloride, reducing its antibacterial performance. Therefore, using Microkiller® to treat seawater is impractical.
Q: How can we determine when to replace Microkiller® antibacterial water-treatment material?
A: Because Microkiller® antibacterial water-treatment material neither changes color nor decreases in volume, the replacement time cannot be determined visually. As a general guideline, it is replaced once per year. Depending on the application, we work with the customer in advance to determine the appropriate amount of Microkiller® antibacterial water-treatment material required to ensure effective performance in actual use.
Q: Does Microkiller® antibacterial water-treatment material prevent scale or rust?
A: No. It does not provide either function.