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OES Co., Ltd. is now uniquely positioned and evaluated by our catalytic ammonia eliminating technology in Chemical and Electronics Industries.

AmmofreeExhausted Water Purifying System

Characteristics

CAT-ReCOx Ammofree

Reduce of CO2
Applicable for corresponding legal regulations of Nitrogen exhaust.

Harmless destruction of Ammonia involved in waste water is easily performed. Stripping tower, ReNOx and STCP combined system make it possible with low cost, low CO2 emission.

In case of destruction of Ammonia at high concentration, ReNOx is able to run without any outer energy supply. Sophisticated control and dissociation energy recovery of ReNOx guarantee stable operation of the system at from 1.2% up to 1.8% of Ammonia concentration.

Extraordinally low energy cost is obtained through Vapor Recovery and Operation under High Concentration of Ammonia of ReNOx.


Flow Chart of Wastewater Effluence

Flow chart of Wastewater Effluence

1) Ammonia water, stored in tank, is supplied to stripping tower.
2) Supply steam to stripping tower.
3) As steam exhausted from tower, reboiler evaporation tank in vacuum state starts to supply steam to tower.
4) Steam supply is stopped or decreased after operation of steam compressor.
5) Highly concentrated Ammonia separated from stripping tower is destructed at ReNOx to get harmless Nitrogen and water in low fuel cost.


Energy Consumption

*Case : Ammonia Water(NH4) 5ton/Hr

1.Waste Water Purification Energy Consumption
Conventional Technology CAT-ReCOX Ammofree
Necessary amounts of vapor 800㎏/Hr 160㎏/Hr(auxiliary steam)
Quantity of electricity
(steam recovery)
0 26kWh/800kg
Steam cost(5yen/kg) 4000yen/Hr 1112yen/Hr
Running cost 33,600,000yen/Year 9,340,000yen/Year

* Quantity of steam is to be changed in specification.
* Calculated cost of electricity is 12 yen/kwh

2.Out Gas Treatment Energy Consumption (Ammonia Gas(NH3) 14kg/Hr)
Conventional Technology ReNOX-20
Maximum processing concentration. 10000ppm 18000ppm
Maximum dilution air supply. 40Nm3/min. 20Nm3/min.
Quantity of electricity(Heater) 46kWh 2kWh
Quantity of electricity(Suction fan) 22kWh 11kWh
Running cost 6,850,000yen/Year 1,310,000yen/Year


*Data shown as actually observed,not for insurance.

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OES INC.

#503 1-6-14, Hashira,
Okazaki-Shi,Aichi
444-0837 (map)

TEL +81-564-64-5567
FAX +81-564-64-2750