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Waste

Trends in Amount of Waste Generated and Effective Utilization Ratio

Indicator FY2012 FY2013 FY2014 FY2015 FY2016
Amount of waste generated [tons] 28,005 25,085 23,614 22,313 22,432
Effective utilization ratio [%] 96.4 97.9 98.9 98.9 99.2

Chart: Waste Generated and Effective Utilization Ratio

Breakdown of Waste Generated, Effective Utilization, and Final Disposal

Waste Type FY2016
Waste Generated [tons] Effective Utilization [tons] Final Disposal [tons]
Total 22,432 20,288 2.144
Sludge 4,449 4,333 117
Waste oil 1,186 1,157 29
Waste acid 3,204 3,198 6
Waste alkali 3,358 2,815 544
Waste plastic 3,557 3,416 141
Waste wood 997 997 0
Waste metal 735 734 1
Glass / eramic waste 437 431 5
Other (*1) 4,508 3,207 1,301

*1 Other:
Other includes general waste, paper waste, septic tank sludge, residue, rubble, textile waste, animal and plant residue, and infectious waste.