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Purification of aquatic environment with oxygen:
High-density oxygen dissolving equipment
High-density oxygen dissolving equipment
Created by an about face thinking of dissolving oxygen to water in oxygen! High performance and efficiency is realized in low-cost, compact equipment.
Registered technology in Land, Infrastructure and Transport Ministry’s New Technology Information System or NETIS (Environmental Measure Technology, Water Quality Preservation CB-000027)
 

A warded with "AI-Chikyu" Prize at Aichi Expo

Since soluble pure oxygen is dissolved to water to a maximum (almost 100%) degree, a high density DO state can be created economically.
(more than 10 ppm DO possible at 42°C)

Highly improved speed for organic materials decomposition by microorganisms

No or few emission of foul odor thanks to non-bubble oxygen dissolution

Capable of responding instantaneously to O2 demand required by high density load or sudden density change.
 
Feature

An oxygen dissolving device based on a new thinking that is totally different from the conventional methods based on exposure to air
Under natural environment, the maximally possible DO density in water is 14.16 ppm at 0°C.
The device can create 20 to 40 ppm or over DO density, a far surpassing figure than the above, at normal temperature.
A saturated state for dissolved oxygen can be created with the device near the bottom of a lake or river, stimulating the activities of aerobic microorganisms.
Cleaning of accumulated sludge can be facilitated without removing it by human hand.

In the purification of industrial waste water, high load and density active sludge (microorganisms) can be dealt with by high density DO.
 
Usage
Industrial waste water, sewage water, aquiculture, hydroponic culture, river, lake and pond etc.
 
Installation Example
Improvement of agriculture and fishery environments
Hydroponic culture and nutriculture Aquaculture Livestock waste water
Purification of river, lake and pond
Purification work at Setogawa River in Tanabe City, Wakayama Prefecture (in 1997) Purification experiment at Nakajimagawa River in Wakayama City (in 2002)
Purification experiment at bouetuura in Shanghai City, China (in 1999) Purification work at Isao Irrigation Canal in Wakayama City (in 2004)
Verification experiment at Sanaru Lake in Hamamatsu City, Shizuoka Prefecture (in 2001) Verification experiment at Doigawa River in Sakai City (from 2004 to 2005)
Purification experiment at drainage canal in Nagashima-cho, Mie Prefecture (in 2002) Purification experiment planned to start at aiga in Kaohsiung City, Taiwan (from 2005)
Purification of industrial waste water
Purification of waste water discharged from bakery plant Purification of waste water after squeezing fruit juice Purification of waste water after milling rice
Purification of waste water discharged from soybean processing plant Purification of chemical waste water  
 
List of Specifications for Non-bubble Dissolution Equipment
 
Oxygen used in Non-bubble Dissolution Equipment
Safe and stable supply of oxygen guaranteed by the Tomoe Shokai’s sales network covering whole of Japan
High-pressure oxygen Liquefied oxygen Oxygen generator
Low-cost of oxygen is realized by complete dissolution of oxygen.

Inquiries should be directed to:
Development Dept.
TEL 03-3734-1124
FAX 03-3739-1070
E-mail kei@tomoeshokai.co.jp
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