کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5759007 | 1623049 | 2017 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sanitary evaluation of domestic water supply facilities with storage tanks and detection of Aeromonas, enteric and related bacteria in domestic water facilities in Okinawa Prefecture of Japan
ترجمه فارسی عنوان
ارزیابی بهداشتی از تاسیسات تامین آب خانگی با مخازن ذخیره سازی و شناسایی آئروموناس، باکتری های روده ای و مرتبط با آن در آب آشامیدنی در استان اوکیناوا، استان ژاپن
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کلمات کلیدی
DNA Data Bank of JapanDDBJMPNThe World Health OrganizationDHLACTALTflagellin generpoBFLAAER - AIRPCA - PCADrinking water - آب آشامیدنیAST - آسپارتات ترانس آمینازEnteric bacteria - باکتری های انتروکوکSER - برای بودنmost probable number - بیشترین تعداد احتمالیRam - رمDam - سدPlate Count Agar - شمارش آگارFiber Reinforced Plastics - فیبر تقویت شده پلاستیکFRP - فیبرهای پلیمری تقویت شده Storage tank - مخزن ذخیره سازیnutrient agar - مواد مغذی آگارHlyA - هلیWHO - که
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
چکیده انگلیسی
Water from the water storage systems was reported to be consumed directly without boiling in 22 of the 54 houses (40.7%). 31 of the sampled houses had installed water storage tanks of more than 1 cubic meter (m3) per inhabitant, and in 21 of the sampled houses, the tank had never been cleaned. In all samples, the total viable count and fecal coliforms did not exceed quality levels prescribed by Japanese waterworks law. Although the quantity of bacteria detected was not high, 23 NF-GNR, 14 Enterobacteriaceae and 5 Aeromonas were isolated in 42.6%, 7.4% and 3.7% of samples respectively. One isolated A. hydrophila and four A. caviae possessed various putative virulence factors, especially A. hydrophila which had diverse putative pathogenic genes such as aer, hlyA, act, alt, ast, ser, and dam. Many bacteria were isolated when the concentration of residual chlorine was below 0.1 mg/l and the water temperature was above 20 °C. These results suggest that elevated water temperature and mismatch between tank size and water demand lead to loss of residual chlorine in tap water. Therefore, to minimize growth of aquatic bacteria such as Aeromonas spp. and Pseudomonas spp., we recommend that an appropriate size tank and/or volume of stored water is always used, and also suggest installation of some means of reducing water temperature such as shading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Water Research - Volume 119, 1 August 2017, Pages 171-177
Journal: Water Research - Volume 119, 1 August 2017, Pages 171-177
نویسندگان
Kazufumi Miyagi, Kouichi Sano, Itaru Hirai,