Evaluation of Point-of-Use Drinking Water Treatment Systems Efficiency in Reducing or Removing Physicochemical Parameters and Heavy Metals
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 306
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شناسه ملی سند علمی:
JR_JEHSD-4-1_008
تاریخ نمایه سازی: 6 اسفند 1398
چکیده مقاله:
Introduction: Nowadays, many people have bought and installed home water treatment devices (point-of-use drinking water treatment systems), as an essential measure, to improve their health.Materials and Methods: This cross-sectional study was conducted to evaluate the parameters of drinking water of Rafsanjan city and home water treatment device in summer 2017. Water samples at the inlet and outlet of the device with 15 day intervals for three months (approximately 48 samples, summer) were collected. Then, the concentration of heavy metals, total hardness, EC, sodium and nitrate were measured in inlet and outlet of treatment devices. All data were statistically analyzed by SPSS software version 18.Results: The results showed that in the inlet water, the EC and pH values were in the standard ranges. The concentrations of arsenic was higher than the permissible limits and other parameters including total hardness, calcium, sodium, magnesium, nitrate, copper, zinc and lead were lower than the standard limits. The highest reduction efficiency was obtained for copper, zinc and arsenic respectively, and thelowest reduction efficiency was reported for nitrate and calcium. Conclusion: Therefore, it can be concluded the devices could reduce theconcentrations of the parameters under the standard limits. Due to the relationship between heart disease and light water, it is suggested that, in view of the high arsenic content in Rafsanjan water, filters at the inlet municipal water can be used to absorb heavy metals, especially arsenic
کلیدواژه ها:
نویسندگان
Raziyeh Pourjamali
International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Elham Khalili Sadrabad
Zoonotic Diseases Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Sayed Aliasghar Hashemi
Irrigation and Drainage, Department of Water Engineering, College of Agriculture, Shahrekord University, Shahrekord, Iran
Hosein Shekofteh
College of Agriculture, University of Jiroft, Jiroft, Iran