Investigate of home water treatment systems efficiency in Ahvaz city 2013

Journal of Water Science & Engineering

مقاله 4، دوره 4، شماره 9، مرداد 2014، صفحه 51-62   

نوع مقاله: Original Article

نویسندگان

Mohsen Bayat Zadeh؛ Maryam Mohammadi Rozbahani^* ؛ Roya Zekavati

چکیده

This study is descriptive - cross sectional and  during  the 8 months from  winter of 2012 to spring and summer 2013 was performed . In this study at first, with preparation and organization the questionnaire, information about  usage, type and functionality of household treatment systems were collected. Then from 20 Household water treatment ،after water treatment, the samples were taken. samples for examined , dissolved oxygen, conductivity, pH, total dissolved solids, total hardness, fluoride, nitrate, chloride and microbial quality of water, according to instructions provided in the latest edition of standard methods(2012), were tested. Sampling in 5 different  locations in Ahwaz city that  covered by 5 treatment plant was performed.Mean quality parameters of pH, electrical conductivity, total dissolved solids, dissolved oxygen, total hardness, fluoride, chloride, nitrate and MPN values​​, respectively, about 8.26, 338.37, 163.61, 2.76, 78.4, 0.08, 55.84, 0.577 and 5.39 are measured. The investigations also revealed that treatment systems, make acceptable standard for some parameters of  drinking water  such as pH& EC but led to a sharp decline in the values ​​of other parameters -TDS, DO total hardness, chloride, fluoride and nitrate- below the drinking water standards & Have been no effect in reducing microbial contamination.

کلیدواژه‌ها

home treatment devices؛ Water Quality؛ Ahvaz؛ the physical - chemical and biological water parameters

مراجع

یاری،ا؛ صفدری،م؛ حدادیان،ل؛ باباخانی ،م .( 1386). بررسی کیفیت فیزیکی ،شیمیایی ومیکروبی آب تصفیه شده دستگاه های آب شیرین کن بخش خصوصی در شهر قم در سال 1381. مجله دانشگاه علوم  پزشکی قم ، 1 :45-54 .

میران زاده ،م؛ ربانی،د . (1388). بررسی کیفیت شیمیایی آب ورودی وخروجی دستگاه های آب شیرین کن شهر کاشان سال 87-86 ،دوازدهمین همایش بهداشت محیط ایران ، کاشان : دانشکده بهداشت محیط ،8-10 آبان ،ص 720-712 .

پزشک،م؛ محوی،ا .( 1390). بررسی کارایی سیستم های تصفیه آب با روش اسمز معکوس (RO) مورد استفاده در مشهد سال 1389 ،چهاردهمین همایش ملی بهداشت محیط ، یزد : دانشکده علوم پزشکی ،20-23 آبان ،ص184-195 .

Osborne LL, Kovacic DA. (1993). Riparian vegetated buffer strips in water quality restoration and stream management. Freshwater biology.;29(2):243-58.

Calderon, R. ( 2000) The epidemiology of chemical contaminants of drinking water. Food and chemical toxicology.;38:S13-S20.

Prats D, Chillon-Arias M, Rodriguez-Pastor M .( 2000). Analysis of the influence of pH and pressure on the elimination of boron in reverse osmosis.Desalination.;128(3):269-73.

Le Cloirec P. ( 2001). Adsorption in water and wastewater treatments. Handbook of porous solids.:2746-803.

Borsuk ME, Stow CA. ( 2002). Reckhow KH.Predicting the frequency of water quality standard violations: A probabilistic approach for TMDL development. Environmental Science & Technology.;36(10):2109-15.

Peng W, Escobar IC. ( 2003). Rejection efficiency of water quality parameters by reverse osmosis and nanofiltration membranes. Environmental Science & Technology.;37(19):4435-41.

WHO. ( 2004). WHO Guidelines for drinking-water quality,. Disponibile all’indirizzo: http://www who int/water sanitation_health/dwq X. 2005;924156251.

Fawell JK. ( 2006). Fluoride in drinking-water:Who;.

Lavado R, Ureña R, Martin-Skilton R,Torreblanca A, Del Ramo J, Raldúa D, et al.( 2006). The combined use of chemical and biochemical markers to assess water quality along the Ebro River. Environmental Pollution.;139(2):330-9.110

Virkutyte J, Sillanpää M. (2006) .Chemical evaluation of potable water in Eastern Qinghai Province, China: Human health aspects.Environment international.;32(1):80-6.

Karavoltsos S, Sakellari A, Mihopoulos N, Dassenakis M, Scoullos MJ. (2008). Evaluation of the quality of drinking water in regions of Greece. Desalination.;224(1):317-29.

Taheri E, Vahid Dastjerdi M, Hatamzadeh M, Hassanzadeh A, Ghafarian Nabari F, Nikaeen M. (2010) Evaluation of the Influence of ConventionalWater Coolers on DrinkingWater Quality. J Health & Environ.;2(4): 268- 75.[persion].

Guilbaud J, Massé A, Andrès Y, Combe F, Jaouen P. (2012). Influence of operating conditions on direct nanofiltration of greywaters: Application to laundry water recycling aboard ships. Resources, Conservation and Recycling.;62:64-70.