Natural origin heavy metal-containing soil countermeasure "DME method" *Purification technology that does not use water
Natural origin heavy metal-containing soil countermeasure "DME method"
NETIS registration! No need for wastewater treatment facilities! Water-free heavy metal purification (extraction) technology "Dry Magnetic Separation Method."
The new technology of dry magnetic separation method, "DME method," is a technique that extracts and purifies heavy metals from low-concentration heavy metal-contaminated soil using magnetic force. The soil after the extraction of heavy metals can be reused as purified soil that meets environmental standards. Additionally, since this method does not use water, there is no need for wastewater treatment facilities, and the system is easy to operate, achieving significant cost reductions compared to conventional soil washing methods. This technology has been evaluated and selected as a recommended method by the Japan Association for Contaminated Soil Treatment. 【Features】 ■ Simple equipment configuration allows for low-cost processing! ■ The amount of precious metal-concentrated soil generated is minimal! ■ No need for wastewater treatment facilities as it does not use water! ■ Achieved significant cost reductions compared to conventional soil washing methods! *For other functions and details, please download the catalog or contact us.
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**About the Geotech Division** DOWA Ecosystem's soil purification business conducts a comprehensive process from investigation to purification treatment and monitoring. We assess all conditions comprehensively to select the optimal treatment methods such as soil washing, chemical/thermal decomposition, and biodegradation. We address a wide range of issues, including not only heavy metals but also VOCs (volatile organic compounds), oil contamination, buried waste, and complex pollution. DOWA Ecosystem has evolved various professional technologies developed from mining and refining techniques into soil purification technologies, providing solutions at the highest domestic level. - Exploration technology - Water treatment and groundwater purification technology - Research and technology development - Mineral processing technology Through various organic collaborations within the DOWA Group, we are developing comprehensive environmental businesses and achieving true recycling. - Soil purification plant: 50,000 tons/month - Thermal treatment plant: 78,000 tons/month - Managed final disposal site: 4,700,000 m³ *For other functions and details, please download the catalog or contact us.*
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DOWA's ecosystem soil purification business conducts a comprehensive process from investigation to purification treatment and monitoring. By comprehensively assessing all conditions, we select the optimal treatment methods such as soil washing, chemical/thermal decomposition, and biodegradation. We address a wide range of issues, including not only heavy metals but also VOCs (volatile organic compounds), oil contamination, buried waste, and complex pollution.
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Dry Magnetic Separation Processing Method Example of Basic Flow and Equipment Layout
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DOWA Ecosystem has been utilizing the technology, infrastructure, experience, and know-how cultivated from mining and refining over the past 120 years in the environmental business. This has led to efforts in reducing emissions, starting from collection and transportation to intermediate processing, metal recycling, environmental surveys, soil purification, and final disposal. Currently, we are engaged in a wide range of environmental businesses, centered on recycling, waste treatment, and soil purification, along with consulting that organically connects these areas. As a comprehensive environmental company that takes on total environmental risks, we are actively involved in various environmental initiatives. Moving forward, with the advancement of a globalized society, it is essential to consider resources and the environment from a global perspective. DOWA Ecosystem aims to think on a global scale and work with local communities to reduce social and environmental risks and achieve a circular society.
