LH210N
More than a lead adsorbent■ Combined lead adsorbent and silver ion capture technology – LH210N
Silver-based antimicrobial agents such as silver activated carbon and silver zeolite mixed into
the activated carbon layer are common methods of combating microbial contamination inwater purifiers. Unfortunately, depending on the frequency of use and source water quality,
elution of excess silver ions has been observed and remains a recurrent problem in our industry.
Our silver ion elution control agent is a zeolite-based technology that enables the adsorption ofthese excess silver ions that are eluted from the silver antimicrobial impregnated activatedcarbon layer of antimicrobial technology used in water purifiers. Our technology, along with its
inherent lead adsorbing function, captures these excess silver ions, effectively pinning thevolume down to below 100 ppb, keeping to the WHO water quality standard.
In this special report, we introduce our results from tests conducted to evaluate the sustainabilityof the silver ion elution control technology under conditions imitating actual water flow volumes
found in water purifiers.

■ Features⚫

Mineral Selectivity
Our technology selectively removes silver ions from water containing high concentrations ofminerals such as Na, K, Ca and Mg.

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Standardized Particle Size
Uniform particle size suitable for carbon block filters (no fine particles below 10μm).

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Certified Technology
LH210N is certified as a filter agent under the NSF/ANSI-42 drinking water treatment unit.

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Lead Ion Removal
Our control technology removes not only silver ions, but also unwanted lead ions containedin water. (*LH210N is used in carbon block filter applications as a lead adsorbent.)⚫

Sustainability
Continued adsorption of excess silver ions with no performance deterioration, even after
extended and repeated use.

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Adaptive Performance
Our technology reliably adsorbs silver ions regardless of water quality, be it tap water or puremineral water.

Sinanen Zeomic Co., Ltd.
R&D Department
1-1 Nakagawa-honmachi, Minato-ku, Nagoya City,
Aichi Prefecture, Japan 455-0051
TEL: +81-52-653-3201
URL: https://www.zeomic.co.jp/en/contact/index.html

For a Richer, More Comfortable LifeLH210N
More than a lead adsorbent■ Specifications

Product Name

Particle Size

Removal Capacity

D50 (μm)<10μm (%)

Ag (mg/g)

Pb (mg/g)

LH210N-30Z

25～35<5≒300≒500

LH210N-40Z

35～45<5≒300≒500■ Silver Elution Test
[Test Method]
Silver-based Antimicrobial Agent:‘Silver-based antimicrobial agent’ 3.0g
Control Agent: LH210N 10.0g
Test Water: Tap water (300 ml)
Contact Time: 24 hours■ Sustainability Test
[Test Method]
Silver-based Antimicrobial Agent:
Silver activated carbon 10g (Company A)
Control Agent: LH210N 1.0g
Test Water: Tap water (100 ml)
Contact Time: 24 hours
Test Conditions: Water replaced every 24 hours.
Silver concentration measured after 1st and 5th change.

■ Water Flow Test
[Test Method]
Silver-based Antimicrobial Agent:
Silver activated carbon 5g (Company B)
Control Agent: LH210N 0.5g
Test Water: Tap water (300 ml/min)
Test Conditions: Water passthrough established forspecified time and stopped overnight. Silver concentrationof initial water passthrough measured the following morning.

Sinanen Zeomic Co., Ltd.
R&D Department
1-1 Nakagawa-honmachi, Minato-ku, Nagoya City,
Aichi Prefecture, Japan 455-0051
TEL: +81-52-653-3201
URL: https://www.zeomic.co.jp/en/contact/index.html

For a Richer, More Comfortable Life