Effect of sewage sludge and mineral wool on water retention and heavy metal content in medium agronomic category soil

Water retention in soil plays a key role in the context of water scarcity connected with climate change. Under the conditions of the laboratory experiment, the effect of the addition of mineral wool from crops grown under cover and municipal sewage sludge on the water retention and heavy metal (Pb, Zn, and Cd) leaching performance of the medium soil was evaluated. Sewage sludge and mineral wool, widely applied in a range of soil reclamation technologies, were found to have a beneficial and diversified impact on the soil water properties and heavy metal mobility.