Soil Solutions
TAIHEIYO CEMENT provides comprehensive services, from soil surveys based on the Soil Contamination Countermeasures Act, to treatment and recycling. We have developed our own system for solidifying/insolubilizing contaminated soil and construction generated soil then recycling (thermal recycling) them as a raw material for cement in a safe manner.
DENITE
DENITE is a heavy metal immobilizer that delivers superior performance in immobilizing all Class II Specified Chemical Substances (heavy metals, etc.) as designated by the Soil Contamination Countermeasures Act. It can also immobilize complex contamination in soil containing a number of different heavy metals.
Main targets of immobilization treatment
- Contaminated soil, excavated muck, ground-improved soil
- Shield tunneling spoil, filter-press soil, dredged sludge
- Sludge, incineration ash, steel slag
- Adsorbents, wastewater treatment agents
Features
- Immediate immobilizing effect upon mixing
- A non-cement inorganic powder material
- Can be used with conventional methods
- Depending on soil conditions, soil improvement and strengthening is also possible.
- Can meet various needs of the site
DENITE series
| Product name | Features | Elements with particularly high immobilization effectiveness |
|---|---|---|
|
DENITE
|
General-purpose product for heavy metals, etc. (9 items) | Lead, arsenic, fluorine |
|
DENITE CR
|
Can be used to treat high concentrations of hexavalent chromium,mercury, and cyan | Hexavalent chromium, mercury, cyan |
|
DENITE MP
|
Can be used for Immobilization of heavy metals in contaminated soil in neutral environments (pH 5.8 to pH 8.6) | Lead, arsenic, fluorine, hexavalent chromium |
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Ferrous sulfate
Ferrous sulfate is a byproduct generated during the production of titanium dioxide and is used for a variety of applications.
Applications
- Exhibits acidity (pH 2.0–3.0) and can be used for pH adjustment of soil, sludge, and wastewater
- Acts as a reducing agent, effectively reducing hexavalent chromium (a hazardous compound) to trivalent chromium (a non-hazardous compound)
- Can be used to remediate contaminated soil containing arsenic, selenium, cyanide, etc.
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cement recycling
We turn soil into a raw material for cement as part of our effort to make the recycling of soil possible.
Features
- Integrated services from soil surveys to recycling
- Enables recycling of contaminated soil and construction-generated soil
- Acceptance determined by content evaluation
Acceptance guidelines
- Lump size of 100 mm or less
- No foreign matter
- Water content of 30% or less
- Low-viscosity soil
Main evaluation items
SiO2、Al2O3、Fe2O3、CaO、heavy metals, chlorine, oil, etc.
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Inquiries
If you need any further information regarding these services, please use this inquiry form to contact us.