کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1744941 | 1522179 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solar water disinfection by a Parabolic Trough Concentrator (PTC): flow-cytometric analysis of bacterial inactivation
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Solar water disinfection by a Parabolic Trough Concentrator (PTC): flow-cytometric analysis of bacterial inactivation Solar water disinfection by a Parabolic Trough Concentrator (PTC): flow-cytometric analysis of bacterial inactivation](/preview/png/1744941.png)
چکیده انگلیسی
An innovative solar water pasteurizer was developed to directly heat the water by solar radiation using a “Parabolic Trough Concentrator” (PTC). The efficiency of drinking water pasteurization by using the PTC was studied with a combination of analytical methods including flow-cytometric determination of total cell concentration and enumeration of cells with damaged membranes before and after treatment. Fluorescent staining of all microbial cells with two nucleic acid stains, SYBR®Green I and Propidium Iodide (live/dead staining), was used. The effectiveness of the pasteurizer to inactivate spiked Escherichia coli cells in contaminated water was also investigated. Flow-cytometric analysis revealed that cellular membranes of all microbial cells were strongly damaged after exposure in all the tested water samples. The pasteurizer reached a maximum daily water production of 66 L on a sunny day and was stable in its E. coli reduction rates. The results of this study suggest that the pasteurization temperature of 87 °C is able to inactivate bacterial cells in drinking water. Despite this, water pasteurized in this way is not sterile and has to be consumed quickly, since treated water samples incubated at 30 °C for 72 h exhibited a potential microbial regrowth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 67, 15 March 2014, Pages 62-71
Journal: Journal of Cleaner Production - Volume 67, 15 March 2014, Pages 62-71
نویسندگان
Riccardo Bigoni, Stefan Kötzsch, Sabrina Sorlini, Thomas Egli,