(Source: Andreoli et al., 2001)
Monitoring plan is useful instruments to control and assess the efficacy
of the entire sludge disposal operation. A plan allows to:
- Control and supervise impacts,
- Follow the implementation and execution of the control measures,
- Adjust, calibrate and validate models and parameters, and
- Serve as reference for future studies monitoring propositions
The parties involved, such as the environmental agency, the
entrepreneur, other governmental and departmental agencies, and the
community, should all establish their monitoring responsibilities.
Furthermore, monitoring efficacy necessitates a strategy that identifies
impacts, indicators, and parameters, as well as sample frequencies,
sampling sites, and analytical procedures that result in comparable and
publishable data.
Conclusion
Sludge is an inevitable byproduct of wastewater treatment purification
system. This review summarized the challenges and technology related to
sludge management, including sludge disposal. Around the world’s most
developed economies, the usage of sewage sludge is mostly focused as an
energy source to help their CO2 emission reduction
policies. However, one thing where everyone agrees on is that Sewage
sludge management should be geared toward the sustainable use and
circulation of nutrients in the environment, sewage sludge processing,
restricting storage, and landfilling. One technique of management is to
employ sewage sludges as components in the production of biofortified
organic fertilizers or soil substitutes. Although technical improvements
have increased our ability to treat sludges efficiently, this does not
guarantee that their harmful components have been eliminated. As with
every technology, there are advantages and disadvantages. However, when
considering the characteristics of the circular economy, it is
undeniably a great option for sewage sludge. Wastewater treatment
facilities must choose suitable technologies based on the local context,
market, and regulatory concerns in order to create ”product” rather than
”waste.”