Concentration of suspended solids and micropollutants in wastewater treatment process – Poland as a case study
2025
Paweł Wolski
The article presents the results of the study and makes an analysis on the concentration of suspended solids in influent and treated wastewater at wastewater treatment plants. The efficiency of the final removal of suspended solids and the amount of suspended solids in the treated wastewater discharged to the receiving water body proceeded properly. An important issue presented in the article is the presence of micropollutants (heavy metals, microplastics) in wastewater and sludge generated after the treatment process. Microplastic removal is a current issue and a real problem in the modern world and a challenge for future generations. Microplastic can act as a carrier of heavy metals and other harmful substances that enter the environment and living organisms. Sedimentation on a primary settling tank reduces microplastic content by .90 %. The use of sand or membrane filters are the next steps in capturing microplastics that are dangerous to health and life. Nowadays, agricultural management of sludge is not only about acceptable content of heavy metals and pathogenic bacteria, but also about minimum acceptable amounts of microplastics.
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