کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7479456 | 1485231 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controlling odors from sewage sludge using ultrasound coupled with Fenton oxidation
ترجمه فارسی عنوان
کنترل بو از لجن فاضلاب با استفاده از سونوگرافی همراه با اکسیداسیون فنتون
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
We examined the effects of ultrasound (U), Fenton oxidation (F), and ultrasound coupled with Fenton oxidation (UÂ +Â F) pre-treatments (prior to anaerobic digestion) on the elimination of odorous compounds. The results demonstrated that U promoted odor release, while the coupled treatment and F alone decreased odor release. After 20-min treatments, the concentration of dissolved sulfide (S2â) under the coupled UÂ +Â F treatment declined from 17.4Â mg/L to 8.1Â mg/L, decreasing by more than 50% and 34%, respectively, for U alone and F alone. In addition, the dissolved sulfate (SO42â) concentration under couple UÂ +Â F treatment significantly increased in sewage sludge from 200Â mg/L to 390.6Â mg/L, up 95.3% compared to U alone and 5% compared to F alone. This illustrates the oxidation process from S2â to SO42â. Throughout experimentation, SO42â was odorless and stable, highlighting the mechanism of odor control. Thus, combining U and F into a single coupled treatment proved to be a better alternative pretreatment for controlling sludge odor compared to the U and F alone and can effectively decrease potential odor release.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 181, 1 October 2016, Pages 124-128
Journal: Journal of Environmental Management - Volume 181, 1 October 2016, Pages 124-128
نویسندگان
Nuo Liu, Changxiu Gong, Jianguo Jiang, Feng Yan, Sicong Tian,