We aim to contribute to society through water.
WATER INTAKE & TREATMENT BUSINESS
Nagaoka provides water intake screens for groundwater in various purposes such as waterworks,
industrial facilities, farming and fish farms.
BUSINESS LINE
As water intake from the water resources, water treatment process and our products
Equipment for water resource (water intake)
“Water intake screens” are used to efficiently extract water from the water resource of tap water, agricultural water, and industrial water that are essential for daily life.
Bury screens to the riverbed, and intake filtrated Water
Insert screens into the wall, of the well and intake groundwater
Raw water taken through water intake screens
Agricultural water (Rice fields, hydroponics, etc.) that any water treatment is not necessary.
Water purification facilities (water treatment)
The NAGAOKA group provides the technology of water treatment for drinkable and commercial use to support our daily life.
The Nagaoka Group Water Treatment Technology
For Municipalities Sector (Water and Sewer Services, etc.)
For Private Sector (Water for Linen, Food Processing, Vegetable Cultivation, etc.)
PRODUCTS
Water Intake
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Water Intake Technologies and Screens
Nagaoka provides water intake screens for groundwater for various purposes such as waterworks, industrial facilities, farming and fish farms.
NAGAOKA water intake screens have been adopted over 1,000 large scale water intake projects in Japan. Our long track record and advanced technologies have been recognized at the national level.
Our technology is acclaimed in the state level for its high performances and became one of the standards in “Guideline on Waterworks Design”.
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Deep Well
The facility that pumps up confined groundwater.
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Shallow Well
The facility that pumps up unconfined groundwater.
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Infiltration Galleries
Equipment that collects river bed water. Used for high-volume water collection.
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Surface Water Intake
Collects water that flows through the ground.
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HiSIS
An innovative seawater intake system developed through application of the Nagaoka Screen as core technology.
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Groundwater Drainage
Works as a measure against underground drain water at construction sites, such as earth‐retaining wall and interception of subterranean stream by structures.
Water treatment
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Water Treatment Equipment
Water purification plants produce safe and reliable tap water.
The NAGAOKA Group is not only able to design various water treatment plant equipment used in water purification plants, but is also capable of manufactures and installs them.
Moreover, NAGAOKA can provide equipment related to sewage and waste water treatment system. -
CHEMILES
Extremely high speed biological groundwater treatment system, which treats groundwater to a potable water at low running cost by contact oxidation and bacteria without using chemicals.
CHEMILES, a leading technology for safe and reliable water system received IWA-PIA Global Honor Award in 2010.
CHEMILES is highly valued for its economical and compact system in rapidly developing Asian countries. -
CHEMILES Plus As
We established As removal technologies by applying the capabilities of CHEMILES Fe removal, because the oxidation of Fe absorbs As. The removal efficiency of As is higher than with the conventional coagulation-sedimentation method or rapid filtration method. This decreases the running costs to provide safe and reliable water.
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AERSYS
AERSYS removes VOC (Volatile organic compounds) and FCD (Free carbon dioxide) from ground and surface water to the water quality standards enforced by Japanese Ministry of Health.