土壌環境保全技術協会 List of Products and Services

"Metal Shut" is a heavy metal immobilization modifier that quickly and reliably shuts out heavy metals with just a small amount mixed in. It is an inorganic mineral composite modifier made from raw materials such as calcium, magnesium, and iron, which has the effect of immobilizing heavy metals while also improving strength, handling (modification), and exhibiting neutralization effects. The treated soil after modification has improved various physical properties, resulting in increased compaction density and enhanced ground strength, making it reusable for backfilling and other applications. 【Features】 ■ Immediate effect ■ Maintains effectiveness permanently ■ Cost-effective and quick construction time ■ Effective on acidic and alkaline soils ■ Effective on complex and high-concentration contamination ■ Improved ground strength *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

The "ASE-HR method" allows for the management of appropriate additive amounts while adjusting water content and pH levels. It enables improvements in strength and handling, and there is no need for hexavalent chromium leaching tests. Additionally, handling of the soil is improved from the mixing stage to immediately after, allowing for heavy machinery work to commence right away. [Features] - Enables improvements in strength and handling - No need for hexavalent chromium leaching tests *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

"Oil Shut" is primarily composed of calcium oxide and, by adding and mixing it into soil contaminated with benzene and oil, it instantly removes oil films and odors from the soil, purifying it. Purification treatment can be conducted on-site without the need to remove soil contaminated with benzene and oil. Purification treatment can be completed in a few hours to 24 hours, and it is a cost-effective method that complies with the Ministry of the Environment's guidelines. 【Features】 ■ Instantly removes oil films and odors, with immediate effects ■ Promotes self-purification through the digestion and decomposition of oil components ■ Low cost and quick construction time ■ Effective with a small amount of use ■ Improves ground strength *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

The association feels joy in bringing together the technologies cultivated by various companies to address issues such as contaminated soil and waste that arise from business activities, and aims to contribute to solving your problems and creating a better environment. We are committed to realizing and providing the most effective countermeasures from the perspectives of environmental restoration, environmental protection, disaster prevention, and mitigation of damage during disasters. While ensuring CO2 reduction effects, we are proposing the construction of new businesses that combine "Environment & Recycling x Decarbonization x Agriculture & Fisheries" by utilizing our association's technologies, creativity, and network. 【Available Technologies Held by Members】 ■ Naturally occurring heavy metal unsuitable soil ■ Various types of contaminated soil from human activities ■ Separation of waste-mixed soil and regeneration of final disposal sites ■ Recycling and proper treatment of various wastes ■ Reuse of soft soil, liquefaction prevention, ground improvement, and fluidization treatment *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

"Hardlex" is an inorganic mineral composite modifier that improves handling and compaction density immediately after mixing with the target soil due to its instant water absorption effect and the modification effects of hydration reactions and agglomeration granulation. Additionally, it begins to generate a large amount of ettringite within a few hours of mixing, ensuring trafficability and initial strength, such as for heavy machinery, through the effect of linking soil particles. Furthermore, it continuously transitions into ongoing chemical reactions such as pozzolanic reactions and carbonation reactions, increasing its binding strength over time, leading to long-term stability. 【Features】 ■ Immediate effect ■ Cost-effective and quick construction ■ Achieves strength even in difficult-to-stabilize soils ■ Low alkalinity, environmentally friendly ■ Resistant to disasters such as earthquakes and heavy rain *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

The "ASE-OS method" is a technique designed to address oil-contaminated soil, sludge, and mud caused by accidents or the aging of equipment. By mixing "Oil Shut (OS)" at 3-6% with oil-contaminated soil and ensuring a curing period of several hours, the removal of oil films and odors can be confirmed. Additionally, by controlling the amount of additive, it can adapt to various types of oil and is effective even in cases of high concentration contamination. 【Features】 ■ Immediately purifies oil content and removes oil films and odors ■ Improves strength and handling ■ No need for hexavalent chromium leaching tests *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement

The "ASE-MS method" is a technique that allows for the simultaneous addition of liquid along with powder. It complies with soil environmental standards for heavy metals. It can improve strength and handling, and convert insoluble and difficult-to-dissolve compounds through chemical reactions. An astonishing four-component mixture. Chelating agents and pH adjustments are added while managing flow rates. [Examples (excerpt)] ■ Nagano Prefecture Target: Arsenic 0.024 mg/L ■ Miyagi Prefecture Target: Arsenic 0.022 mg/L ■ Tokyo Metropolis Target: Arsenic 0.97 mg/L ■ Tokyo Metropolis Target: Arsenic 0.017 mg/L ■ Niigata Prefecture Target: Mercury 0.0013 mg/L *For more details, please download the PDF or feel free to contact us.

• Soil improvement material
• Ground improvement