SLUDGE STRATEGY IN CARAS SEVERIN COUNTY AND REHABILITATION OF CONTAMINATED SITES

Abstract

The sludge generation main source of Caraş-Severin County are the sewage treatment plants; the amount of sludge generated by the water treatment plants being insignificant. Because the annual amounts of sludge generated is high the processing, storage, recovery of sludge creates specific and complex engineering problems. The elaboration of the sludge strategy considered the quantities and quality, of current sludge, as well as those resulted after the completion of the construction works for the new water treatment and purification plants included in the Water - Water Waste Master Plan. Also, the sludge resulting from the implementation of the Integrated Waste Management System at the county level must be taken into account. The sludge strategy aims to provide on a medium term sustainable solutions for the final recovery / disposal of the sludge generated in accordance with the legal provisions and the national strategy. The paper presents one of the sustainable and viable options for sludge recovery in Caraş-Severin County, using them as an artificial soil for re-ecological contaminated sites (33), amounting to 629 hectares: mining waste dumps, tailings ponds and non-compliant deposits.

Keywords

• sludge strategy
• contaminated sites
• sewage treatment plants
• degraded lands
• sustainable recovery