(Source: EUROSTAT, 2022)
This data demonstrates that, in different nations how much sludge was
produced after the wastewater treatment and undoubtedly it shows that
various national governments are concerned about the water management
and environment, but sludge disposal data is also parallelly important.
Based on the statistical data of Eurostat (2019), the worldwide disposal
of sewage sludge using different disposal methods, is shown in Table 2
and Figure 2.