کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9681207 | 1455514 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Trihalomethane formation during chemical oxidation with chlorine, chlorine dioxide and ozone of ten Italian natural waters
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
The chlorination of water containing natural organic matter (NOM) and bromide leads to the formation of total trihalomethanes (TTHMs), for which the Italian new regulation on drinking water (Legislative Decree 31/01) indicates a restrictive maximum concentration level of 30 μg/l. The extent of total THMs (TTHMs) and brominated THMs (THM-Br) depends on many factors: bromide, organic matter, chlorine dose, pH, alkalinity and ammonia concentration. In this study the formation of TTHMs and their speciation was investigated. Different oxidation batch tests with chlorine, chlorine dioxide and ozone were performed on natural surface waters coming from ten different sources (seven artificial lakes and three rivers) used for drinking water production in real potabilisation plants. The results suggest that in TTHMs formation hypochlorite ion reacts effectively with organic matter, and bromide plays an important role in these reactions for THM speciation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 176, Issues 1â3, 10 June 2005, Pages 103-111
Journal: Desalination - Volume 176, Issues 1â3, 10 June 2005, Pages 103-111
نویسندگان
Sabrina Sorlini, Carlo Collivignarelli,