Evaluation of the Heavy Metals Content in Sewage Sludge from Selected Rural and Urban Wastewater Treatment Plants in Poland in Terms of Its Suitability for Agricultural Use
Dorota Olejnik
Abstract:The amount of sewage sludge produced in Poland is increasing every year. Once stabilised and hygienised, sewage sludge is a valuable product, rich in biogenic elements such as nitrogen and phosphorus, which are essential for plant growth. However, in addition to the compounds that are beneficial to the soil, this sludge can also contain harmful substances such as heavy metals. The aim of this assessment is to analyse the content of seven heavy metals in sewage sludge from urban and rural wastewater treatment p… Show more
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