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Hirakata Plant: Environmental Data (FY 2021)

Environmental Performance

 

Category Unit FY2020 FY2021
Energy use kL per year
(crude oil equivalent)
3,726 3,162
CO2 emissions t-CO2 per year 6,346 5,499
Water use m³ per year 32,704 28,665
Industrial waste generation kg per year 50,851 49,556
Wastewater discharge
(water treatment facility)
m³ per year 15,785 15,111

Exhaust Air

Category Facility Regulatory threshold Voluntary standards Measured values
Average values Maximum values Measurement frequency
Dust and soot
(g/Nm³)
AR-1 gas absorption type water cooler/heater 0.05 0.02 - - Once every five years
NOx*
(ppm)
AR-1 gas absorption type water cooler/heater 150 42 29 29 Twice a year

* NOx: Nitrogen oxides

Wastewater Quality

Category Unit Regulatory threshold Voluntary standards Measured values
Average values Maximum values Measurement frequency
Hydrogen ion concentration (pH) mg/L 5.8~8.6 6.2~8.2 7.4 7.6 Once a month
Biochemical oxygen demand (BOD) mg/L 35 10 3.8 5.8 Once a month
Chemical oxygen demand (COD) mg/L 35 10 6.6 8.7 Once a month
Suspended solids (SS) mg/L 70 5 3.1 4.8 Once a month
Normal-hexane extracts mg/L 4 1 1 1 Once a month
Coliform count per cm³ 3,000 30 3.8 28 Once a month

Exhaust Air: Total Emission Load

(Unit: ton)

Category Total discharge load
FY2020 FY2021
NOx 0.16 0.19
SOx* 

* SOx: Sulfur oxides

Wastewater Quality: Total Discharge Load

(Unit: ton)

Category Total discharge load
FY2020 FY2021
Chemical oxygen demand (COD) 0.11 0.10
Biochemical oxygen demand (BOD) 0.073 0.057

Foul Odors

No exceedance of standard values

Noise and Vibration

No exceedance of standard values

Dusts

No exceedance of standard values

PRTR Substances (Unit: ton)

(Unit: ton)

Subs tance No.  Substances subject to reporting Amount handled Amount released Amount transported Other amounts
Released into air Released into waterways Released into soil Waste Sewage Re-cycled Con-sumed Re-moved
30 Linear alkylbenzene sulfonic acids and their salts 0.913 0 0 0 0.003 0 0 0.910 0
31 Antimony and its compounds 0.915 0 0 0 0 0 0 0.915 0
Total for substances subject to reporting 1.828 0 0 0 0.003 0 0 1.825 0
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Home >  Sustainability > Hirakata Plant (Osaka, Japan) > Hirakata Plant: Environmental Data (FY 2021)