The technology "Heat Liner Method" that simultaneously realizes the renewal of aging sewer pipes and the utilization of temperature difference heat from sewage.
■Heat Recovery from Sewage■ Did you know that heat can be recovered and utilized from sewage, which includes wastewater from washing dishes and bathwater? The temperature of sewage flowing through sewer pipes is said to be between 10 and 20°C throughout the year, making it more stable compared to outside temperatures. This temperature difference between the outside air and sewage is used as a heat source for air conditioning, hot water supply, and snow melting. Sewage heat is a safe and clean energy source that can be expected to reduce fossil fuel usage and provide energy-saving benefits. ■2021 New Energy Award Winner■ The method of utilizing the temperature difference in sewage has been recognized as an innovative approach for promoting its use, especially as it can be implemented during the renewal of aging sewer pipes. As a result, it received the 2021 New Energy Award, specifically the "Chairman's Award of the New Energy Foundation [Implementation Activity Category]."
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basic information
■Updating pipelines + recovering wastewater heat simultaneously with the "Heat Liner Method"■ The "Heat Liner Method" simultaneously achieves the renewal of sewer systems and the recovery and utilization of wastewater heat. To recover heat from wastewater, heat collection pipes are installed at the bottom of the sewer pipes. A heat transfer fluid circulates within the heat collection pipes, transporting heat from the wastewater to the utilization facility. After laying the heat collection pipes, a rehabilitation pipe with strength equivalent to that of a new pipe is formed inside them, incorporating a new added value of recovering wastewater heat while renewing the aging pipeline. For information on the rehabilitation method, please see the "Alpha Liner Method." https://premium.ipros.jp/toa-g/product/detail/2000538190/
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Usage: Air conditioning / Nursery office 25 square meters (Tokamachi City, Niigata Prefecture) Existing pipe diameter: φ800mm Installation length: 57m Usage: Hot water supply / Private hospital (Komoro City, Nagano Prefecture) Existing pipe diameter: φ250mm Installation length: 43m × 2 Usage: Snow melting / Parking lot (Joetsu City, Niigata Prefecture) Existing pipe diameter: φ250mm Installation length: 83m Usage: Snow melting / Bus stop 12 square meters (Hirosaki City, Aomori Prefecture) Existing pipe diameter: φ250mm Installation length: 47m Usage: Snow melting / Shopping street sidewalk 18 square meters (Takayama City, Gifu Prefecture) Existing pipe diameter: φ250mm Installation length: 40m
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Company information
Since its establishment, our company has played a role in national construction, primarily focusing on the "ground improvement field" with our unique grouting method. Subsequently, in response to the changes in social infrastructure development, we have refined our technologies to adapt to the needs of the times and, at times, acquired new ones to expand our business scope. As a result, we have now established three main pillars: "ground improvement business," "slope disaster prevention business," and "pipeline business."
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