Tokyo Gas Chemicals is now reinforcing its total utility business of water treatment diagnosis and consultation. Water treatments are indispensable for various facilities such as to treat industrial or business water, cooling water, RO (reverse osmotic filtration), cogeneration, boiler and draining for plants or buildings.

However, as conditions vary depending on the facilities, it is said that an efficient use is not necessarily attain in many cases. Particularly, the compositions of water treatment chemicals are not clarified, which makes it practically difficult to select a suitable chemical to meet the facility of the plant or building. Furthermore, in many cases, such chemicals are utilized wastefully without any comprehension of the optimum amount of use.

For this, therefore, Tokyo Gas Chemicals reviews from a professional and comprehensive viewpoint and started to deal with the total utility services, so that it can propose a best-mixed program of the optimum elements for water treatment. “We propose to our user the optimum water treatment program on a neutral standpoint or from a third party’s viewpoint in other word.” (Akiya Fujisawa, Managing Director)

After reviewing the across-the board water treatment (water, fuel and chemicals) of an existing semiconductor plant, it proved to be possible to reduce the cost by 15%. In the review of chemicals used by a foodstuffs company, improvement of RO recovery rate brought an substantial reduction by 35% of the amount of feed water and drained water.

As for the boiler facilities, pointed out are the reduction of vapor loss, drain recovery, reduction of blow water/heat recovery, prevention of scale adhesion, reduction of chemical used, waste oil conversion to fuel or mixing, boiler blower to inverter, deoxidizer and condensate processor. As for the cooling water, pointed out are the application of high functional chemicals; chlorine generator and automatic blower, enhancement of multiple number, optimization of chemical amount by automatic concentration controller, installation of blow water recovery machine, anti-corrosion material, scale dispersing agent, germ control agent. As for drain treatment facilities, pointed out are the automatic chemical injection control of inorganic flocculating agent, combined use of organic flocculating agent, optimization of interface control de-waterer or aeration tank, change into high-efficiency diffuser tube and recycling of drained water.