Bachev, Hrabrin; Ivanov, Bozhidar - 2022
The issue of sludge utilization from wastewater treatment in agriculture is an important socio-economic and …. Thus, the object of research is the effective utilization of sludge from wastewater treatment in Bulgarian agriculture. In … agriculture in two major regions of the country (Sofia and Burgas) are identified. Impact factors are generally divided into two …