Hydrogeochemical Process and Quality Assessment of Surface Water Around Fuli Abandoned Quarries Area, Northern Anhui Province, China

Abstract

Surface water is an indispensable water resource of drinking and irrigation, which plays important role on human health and quantity of grain production. Hydrogeochemical process as well as quality assessment of 31 representative surface water samples from 3 typical lakes around Fuli abandoned quarries area were carried out. The cation is dominated by Ca 2+ and Mg 2+ , while the anion is dominated by HCO 3 and SO 4 2-. The two leading hydrochemical type are SO 4. HCO 3 -Ca.Mg (100%) in No. 1 lake, wheres HCO 3. SO 4-Ca.Mg (88.24%) and SO 4. HCO 3 -Ca.Mg (11.76%) of No.2 and No.3 lake. The chemical composition of No.1 lake are mainly controlled by carbonate dissolution and ion-exchange, the chemical composition of No.2 and No.3 lake is mainly influenced by both ion-exchange and dissolution of carbonate and silicate minerals, among which rock weathering is the most important factor. The recharging of the lakes is mainly derived from atmospheric precipitation with the existence of evaporation. The surface water in the study area, in general, is suitable for drinking and irrigation. The outcomes of this research provide a better understanding of hydrochemical mechanism of surface water around quarries, and it will help to improve management and sustainable utilization of water resources for local government.