Businesses

"JiT Mat" Heavy Metal Adsorption Mat

Easier and More Reliable Treatment of Construction Generated Soil

Overview of JiT Mat Heavy Metal Adsorption Mat - Heavy Metal Adsorption Process

JiT Heavy Metal Adsorption Mat - NETIS Registration (HK-150010-A)

JiT Heavy Metal Adsorption Mat - NETIS Registration (HK-150010-A)
Adsorbs heavy metals without special setup required, Mass-produced material to ensure reliable quality, Reduces construction time Usable in emergency response efforts

This heavy metal adsorbing construction material is non-woven felt sheet that is infused with a high concentration of material which adsorbs heavy metals. Placing this mat under contaminated soil so that the mat evenly soaks up water contaminated with heavy metals that have leached from contaminated soil ensures that heavy metals are adsorbed efficiently and prevents heavy metal contamination from spreading.

  1. Can be used to adsorb heavy metals in soil that leaching heavy metals, such as arsenic, cadmium, selenium, and lead, beyond established standards without any special setup required.
  2. Reliable performance of adsorption layers is controlled via manufacturing processes. On-site fabrication work is unnecessary. This product helps ensure consistent and dependable adsorption processing thanks to reduced construction work, ability to use in emergency response efforts, and dense packing of material to prevent scattering while maintaining adequate permeability.

Reduced Risk of Leaching

Conceptual image of activity of water permeating in soil
(Fingering phenomenon)

Conceptual image of activity of water permeating in soil (Fingering phenomenon)

Conceptual image of even distribution of water permeation by using JiT Mat

Conceptual image of even distribution of water permeation by using JiT Mat

Distributing permeating water evenly throughout the inner mat layer ensures an effective contact of the contaminated water with the adsorption material.

General Specifications

Dimensions 1.0 m (W) x 2-3.0 m (L)
Weight 10 kg/m2
Thickness 3.0 cm

Adsorption Performance

Adsorption Isotherms of Different Heavy Metals

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

Element Environmental standard (mg/L) Adsorption
(mg/g)
As(V) 0.01 1.1
Se(IV) 0.01 2.0
Pb 0.01 1.9
Cd 0.01 1.1
Hg 0.0005 0.1

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

Multi-use - Usable in Many Different Applications

On-site treatment eliminating the need to transport contaminated substances off-site

Works anywhere You can Place It

Works anywhere You can Place It
Works anywhere You can Place It

Usable as part of on-site treatment in many types of construction projects including embankments and shoulders.
This product can be easily installed by one person without the use of heavy machinery.

Because this product merely needs to be placed and secured, it can be used to respond quickly to situations requiring supplemental materials or temporary installations.

Use to prevent further spreading of heavy metals during times of temporary buildup

Use to prevent further spreading of heavy metals during times of temporary buildup

Use as remediation at specific locations exceeding design allowances

Use as remediation at specific locations exceeding design allowances

Use as remediation against leakage under water treatment facilities and other yards

Use as remediation against leakage under water treatment facilities and other yards

Actual Case Studies of JiT Mat Usage

JiT Mat has already been used in many public works projects.
This product is used at temporary storage sites of excavated soil, remediation against leachate solution, and remediation against leakage at wastewater treatment facilities.

Case Study 1: Dam Redevelopment Project in Prefecture A

JiT Mat installation

JiT Mat installation

Steel sheeting installation

Steel sheeting installation

After installation of steel sheeting

After installation of steel sheeting

After H-steel installation and paving

After H-steel installation and paving

Application: Temporary storage
Comments: Used in public works project to adsorb arsenic

Case Study 2: Construction Project in Prefecture B

JiT Mat installation

JiT Mat installation

Installed into U-shaped trench

Installed into U-shaped trench

Preventing flow into water collection piping

Preventing flow into water collection piping

JiT Mat packaged state

JiT Mat packaged state

Application: Temporary storage sites and water collection remediation
Remarks: Used in public works project to adsorb arsenic

Case Study 3: Pollution Remediation Project in Prefecture C

Delivery of JiT Mat

Delivery of JiT Mat

JiT Mat installation

JiT Mat installation

Installed around tank installation sites

Installed around tank installation sites

Wastewater leakage remediation

Wastewater leakage remediation

Application: Leakage remediation for wastewater treatment facilities
Comments: Used to absorb lead

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