English Sitetop > CSR Activities > Measurement Data
[Emission]
More than 99.5 % of a discharge is subjected to the thermal recycling thermal or the material recycling.
  Unit FY 2015 FY 2016 FY 2017 FY 2018 FY 2019
Total discharge amount including waste ton 247 355 442 454 483
Sludge kg 185,467 289,365 359,416 368,090 392,720
Metals (battery) kg 33 38 64 116 25
Wood kg 2,660 5,010 2,510 2,610 3,720
Oil kg 11,520 11,400 11,193 11,135 9,610
Acid kg 466 479 852 7,648 6,833
Alkali kg 17,336 16,422 19,718 16,070 17,180
Glass & Ceramic kg 15,628 19,845 18,310 20,240 25,975
Plastic kg 13,749 12,799 21,291 28,333 27,064
Burnable Waste kg - - - - -
Others(low,high concentration PCB) kg - - 8,407 90 -

[Water Quality]
As to drainage, according to the inspection based on the laws and regulations, there is no problem.
Below are result of 2019 check.
Hazardous substance
  Unit Limit Measured value
Cadmium and its Compounds mg/l 0.1 < 0.001
Cyanide mg/l 1 < 0.02
Organophosphorus mg/l 1 < 0.10
Lead and its Compounds mg/l 0.1 < 0.01
Chromium mg/l 0.5 < 0.01
Arsenic and its Compounds mg/l 0.1 < 0.01
Mercury and its Compounds mg/l 0.005 < 0.0005
Alkyl mercury compound - Not to be detected Not detected
Polychlorinated biphenyl mg/l 0.003 < 0.0003
Trichloroethylene mg/l 0.1 < 0.01
Tetrachloroethylene mg/l 0.1 < 0.01
Dichloromethane mg/l 0.2 < 0.02
Carbon tetrachloride mg/l 0.02 < 0.002
1, 2 - Dichloroethane mg/l 0.04 < 0.004
1, 1 - Dichloroethylene mg/l 1 < 0.02
Cis - 1, 2 - Dichloroethylene mg/l 0.4 < 0.04
1, 1, 1 - Trichloroethane mg/l 3 < 0.3
1, 1, 2 - Trichloroethane mg/l 0.06 < 0.006
1, 3 - Dichloropropene mg/l 0.02 < 0.002
Thiuram mg/l 0.06 < 0.006
Simazin mg/l 0.03 < 0.003
Benthiocarb mg/l 0.2 < 0.02
Benzene mg/l 0.1 < 0.01
Selenium and its Compounds mg/l 0.1 < 0.01
Boron and its Compounds mg/l 10 < 0.2
Fluorine and its Compounds mg/l 8 2.8
1, 4 - Dioxane mg/l 0.5 < 0.05
Ammonia and its Compounds mg/l 100 7.1
 
other drainage
  Unit Limit Measured value
pH pH 5.8≤ χ ≤8.6 6.6
BOD mg/l 160 13.0
COD mg/l 160 5.7
SS mg/l 200 8.0
n-Hex (mineral oil) mg/l 5 < 1.1
Phenol mg/l 5 < 0.10
Copper mg/l 3 < 0.10
Zinc mg/l 2 < 0.10
s-Fe mg/l 10 < 1.0
s-Mn mg/l 10 < 1.0
Nitrogen mg/l 120 15.6
Phosphorus mg/l 16 < 0.10
  Unit FY 2015 FY 2016 FY 2017 FY 2018 FY 2019
Type A Heavy Oil 1,140 1,840 670 1,380 1,040
LPG m3 57,854 65,987 75,250 75,523 95,303
Electric Power MWh 29,983 32,294 36,311 36,475 29,861
Water m3 258,016 195,051 241,712 315,647 308,272
Water, spec.cons./pcs m3/pcs 0.00677 0.00199 0.00188 0.00170 0.00400

 

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