TECHNOLOGY DEVELOPMENT

Core technology under development

Names of technologies developed by SANHA E&C

Double-filter riverside filtration and water supply technology

Overview Vertical well drilling technology that utilizes the following system: An external casing pressed in by using a large-diameter boring machine (diameter of 1.2m) to form a tube well. Then an internal casing and an intake pipe are installed. A double-filter and a screen suitable for the size of the aquifer near the intake pipe are applied to allow for maximization of water supply from the well and to offer a stable supply of water.
Picture, Drawing of the technology

Highly-efficient, low-cost technology for processing wastewater produced from rare earth mineral extraction process

Overview - Technology that processes wastewater that includes arsenic, heavy metals, radioactive materials and organic matters produced from rare earth mineral extraction process in a resource circulation-based eco-friendly method to meet environmental standards
- Currently running two pilot plants in China under cooperation with a Chinese company
Picture, Drawing of the technology
※ Project supported by Energy Technology Development Business under Korea Institute of Energy Technology Evaluation and Planning

CWG System (combined well & open-closed loops geothermal system)

Overview - Combined well & open-closed loops geothermal system, that solves problems with existing geothermal system, for use in areas with access to groundwater supply
Picture, Drawing of the technology