Preventing Pollution

Policy and Basic Approach
System
Targets and Results
Initiatives

Policy and Basic Approach

The Nippon Kayaku Group is working on preventing pollution and conserving the environment via its Declaration on the Environment, Health and Safety, and Quality. We recognize that increasing environmental value through reducing environmental burdens is a key issue for our Group. With respect to emissions released into the air, water and soil from industrial waste produced, we not only respect national and regional laws but manage such emissions in line with our own yet higher numerical targets. In such ways are we striving to decrease pollution and pollutants.

Our Declaration on the Environment, Health, Safety and Quality

This Year’s Nippon Kayaku Group Responsible Care Policy

System

Responsible Care Promotion System

Audit

In order to confirm whether wastewater and waste are being appropriately managed at every business site and Group company, the Nippon Kayaku Group conducts audits in the form of Core Environment, Safety and Health Diagnostic Checks. These Checks allow us to confirm any problems or inadequacies regarding compliance with laws and regulations on wastewater and waste treatment, run our eye over wastewater treatment areas and waste disposal areas, and grasp any problems with the management situation.

Responsible Care Audits

Targets and Results

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Key sustainability issues	Corresponding SDGs	Action plans	Indicators（KPI）	FY2025 Targets	Results
Key sustainability issues	Corresponding SDGs	Action plans	Indicators（KPI）	FY2025 Targets	FY2023	FY2024
Reducing Energy Consumption and Greenhouse Gas Emissions Reduction of Wastewater and Industrial Waste Improving Efficiency of Water Resource Use		To achieve our FY2030 Environmental Targets by promoting energy-saving and global-warming response initiatives. To extract issues and clarify our strategies in order to achieve carbon neutrality by FY2050.
			VOC emissions	(Non-consolidated) Disclose results	(Non-consolidated) 32.9 tons	(Non-consolidated) 60.3 tons
			COD emissions	(Non-consolidated) Disclose results	(Non-consolidated) 210.9 tons	(Non-consolidated) 222.2 tons

Initiatives

Reducing VOC and Toxic Air Pollutant Emissions

We are not only working to calculate and reduce emissions of VOCs listed in the Air Pollution Control Act, but of VOCs specified by the Japan Chemical Industry Association also. We are also engaged in reducing emissions of toxic air pollutants from 12 substances we have voluntarily agreed to control, including dichloromethane and formaldehyde. Key examples of initiatives we have taken are listed below.

Exhaust gas processing equipment installed
Gas absorption equipment installed
Regenerative combustion equipment installed
Working practice reform; review of possible substitutes for chemical substances used
Leakage prevention measures

Reducing Sulfur Oxides (SOx), Nitrogen Oxides (NOx) and Particulate Matter

Below can be found a list of Nippon Kayaku measures taken thus far to keep emission levels of SOx, NOx and particulate matter below even the legal requirements.

Switchover of combustibles from C-class heavy oil to A-class heavy oil, LPG and natural gas
Introduction of low NOx boilers and small-sized once-through boilers
NOx denitrification equipment installed
Dust collectors installed

Wastewater Management

At every plant do we prepare treatment equipment to deal with manufacturing process wastewater depending on its composition, and hold ourselves to higher standards than those imposed by law and local authority regulations when keeping tabs on water pollution figures. We are happy to report that FY2024 saw no violations of laws such as the Water Pollution Prevention Law and related regulations, and zero violations of wastewater discharge laws such as the Waste Disposal and Public Cleaning Law.

Numbers of Environmental Violations

Education and Training

Head Office
A Seminar on the Soil Contamination Countermeasures Act

September 2023 saw our Technology Unit’s Responsible Care &Technology Division open a seminar on the Soil Contamination Countermeasures Act for domestic business site in-charges and environmental protection managers, aimed at deepening understanding of environmental laws. The Soil Contamination Countermeasures Act is geared towards grasping soil pollution situations and implementing relevant measures to prevent health hazards. As Nippon Kayaku handles a multitude of chemical substances, we must gather the requisite knowledge on soil contamination prevention measures in order to appropriately apply the law when, for example, decommissioning facilities which handled designated hazardous chemicals or encountering changes in soil characteristics (due to excavations or embankment-building). The seminar saw around 50 employees given the chance to learn about the outline and purpose of the Act and the process for filing applications from a specialist who introduced actual case studies. The future will see us hold such internal seminars periodically to deepen employee understanding as we work on fully observing the law.

Joetsu Plant
Training on Wastewater Issues

The Joetsu Plant manufacturing process for polarizing plates gets through some 20,000m³ of water a month.
Such manufacturing operations cause discharged wastewater to contain various chemical substances. Once put through treatment equipment, though, we can reuse such wastewater as process water and thereby decrease industrial waste volumes. We also use analyzers to monitor wastewater discharged into rivers, and hold ourselves to standards yet higher than those laid down in regulations, discharging only wastewater which meets those standards. The same plant also hosts training seminars given by Facility Safety Division employees on water treatment equipment and discharge methods, with production employees and managers learning how water used in production is treated prior to discharge into rivers. We will continue holding these training sessions on a regular basis so as to deepen employee understanding and lower environmental burdens.

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