The Characteristics Analysis And Supply Law Reserch Of Natural Mountain Spring Water In Mount EMei

In this paper,the index characteristics of natural mountain spring water source in Emei Mountains are analyzed,the index status and distribution characteristics being studied systematically,and the mineral water genera,index status and distribution law are analyzed and summarized.The results showed that the pH range of natural mountain spring water in Emei Mountain was 7.23 ～ 7.92,which met the requirements of the pH of the national drinking water and it is between 6.5 and 8.5.The water is naturally alkalescent and it is close to the pH of human body 7.35～7.45.Strontium content ranges from 0.202 mg/L to0.400mg/L,which is in line with the national standard of strontium content for drinking natural mineral water.And the national standard requires the strontium content of drinking natural mineral water must be greater than or equal to 0.20 mg/L.The four sampling points is Lin ditch,Da ditch,Qima ditch as well as Shuina ditch,which are located in the virgin forest basin.And the virgin forest basin is located in the east of Emei and closest to Wanfoding.The sodium content,potassium content,potassium content and calcium content of the four sampling points is 0.50 ～ 4.10 mg/L,0.24 ～ 0.99 mg/L,4.34 ～ 34.83 mg/L as well as 17.23-40.37 mg/L respectively.The concentration of the four elements are all within the drinking water quality standards which is stated by the world health organization and it is also within the scope of drinking water hygiene standards of our country.The content of met silicic acid is between 16.45 and 28.84 mg/L,fluctuating around 25.00 mg/L in all seasons of the year,and it basically meets the national standard of the limit index of drinking natural mineral water of 25.00 mg/L.The results of microbial index that the coliform bacteria,streptococcus faecium,pseudomonas aeruginosa,and clostridium perfringens is0CFU/100 mL,0CFU/250 mL,0CFU/250 mL and 0CFU/50 mL respectively.The results of the four indexes were not detected.All of them met the microbial limit set of the national standard for drinking natural mineral water.Emei Mountain natural spring water belongs to the living spring water of water-exposed fissure karst water which is distributed in Jinding,Wanfoding and Qianfoding of Emei Mountain covered by basalt.There are a lot of structural fissures in the strata near Wanfoding in the eastern foothills of Emei Mountains,dense vegetation,continuous infiltration of abundant precipitation and snow-soluble water,providing a good spatial channel for the transportation and storage of natural springs,better water conservation conditions,and sufficient water supply respectively.All of the conditions provide a good impetus to the formation of abundant water resources of mountain springs in the region,thus forming a unique natural high-quality water source of Emei Mountain.This paper provides a good reference value for the analysis,research,selection and production of mineral water sources in Emei Mountain.