The "Asiago-Sette Comuni" plateau (Italy) is the main contributing zone of an alpine karst aquifer supplying a multi-aquifer system in the Central Veneto plain exploited for domestic, industrial and agricultural uses. Some of the communities in the upland are connected to public sewers discharging to treatment works. Conversely, several small isolated communities, farms and tourist resorts discharge to short sewers ending in septic tanks, whose overflows feed local streams, which are most of the time dry because waters infiltrate the karst bedrock and reach the plain aquifer within 24-50 h. The two aquifers are highly vulnerable to contamination, due to fast water transport with limited attenuation processes. The aim of the present research is to evaluate the efficiency of a small subsurface constructed wetland system in improving wastewater from a mountain village. In the first 16 months of operation, removal capacity of the experimental system averaged more than 98% of pathogenic organisms, more than 90% of TSS, COD and, BOD 5 , about 50% of N-NH 4 + , N-NO 3-, N-total, Cl-, SO 4 2and PO 4 3-, even in the cold season. The vegetal cover is good and there are no operational problems.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.