Open Access

Table 5

Waste water management.

Waste water management 2021 2020 2019
Complete waste water treatment 4.3% 4.6% 8.2%
Sedimentation basin 22.9% 22.4% 26.5%
Waste water neutralisation 11.1% 13.9% 22.9%
Waste water discharge contract 78.2% 71.7% 75.9%
No waste water management 7.5% 16.0% 8.2%
Total 123.9% 128.7% 141.8%

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