Preventing Water Pollution｜Eco-Factories / Laboratories / Offices | Environment | CSR(Corporate Social Responsibility)

Preventing Water Pollution

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Action Plan

Self-assessment rating　○：Targets achieved　△：Targets partially achieved　×：Targets not achieved

FY2010 Targets	Maintain FY2005 total volume levels or less (Japan)
FY2010 Results	BOD: 36% decrease from FY2005 level COD: 9% increase from FY2005 level	×

Basic Policies

To prevent water pollution, OMRON has established in-house guidelines with voluntary standards for controlling BOD (biological oxygen demand) and COD (chemical oxygen demand) concentrations to keep them below the regulatory standards. Each site closely monitors and measures water pollutants, while at the same time working to reduce the amounts of these substances by installing organic materials decomposition/removal systems in the drainage path, and through regular inspection of water purification tanks.

FY2010 Overview

OMRON sites in Japan worked toward the goal of maintaining BOD and COD at fiscal 2005 levels or lower, through controls based on voluntary standards. Thanks to these efforts, OMRON was able to reduce BOD by 36% compared to fiscal 2005. However, COD increased 9% from the fiscal 2005 level. The increase in COD was mainly due to the increased amount of wastewater accompanying the increase in staff to accommodate greater production volume.

Wastewater, BOD, COD and Nitrogen/Phosphorus
(Japan and Overseas)

Efforts to Prevent Water Pollution

In Japan, BOD and COD concentrations were curbed by activating microorganisms during inspection and cleaning of purification tanks.

Overseas, a separate facility was set up for treating garbage from dining rooms so as to separate oily water and sewage, while installing additional sewage purification tanks and regularly cleaning the wastewater treatment facility. These measures helped hold down sewage concentrations.

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