کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
641050 1456987 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Treatment of wastewater from an alkaline cleaning solution by combined coagulation and photo-Fenton processes
ترجمه فارسی عنوان
درمان فاضلاب از یک راه حل تمیز کردن قلیایی با ترکیب انعقاد و فرآیندهای عکس فنتون
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
A coupled coagulation and photo-Fenton treatment has been applied to an industrial wastewater coming from the use of an alkaline cleaning solution. The real wastewater contained anionic and nonionic surfactants, tripolyphosphate, soda ash, metasilicate and oil residuals. After the proposed treatment, the wastewater fulfilled Argentine regulations for sewage discharge (10 mg/L total phosphorus, 0.7 g/L COD). First, phosphorous was eliminated by coagulation with FeSO4 and then COD was removed by a photo-Fenton treatment. The dark Fenton treatment was also effective to remove COD but it did not allow achieving the discharge regulations, and the application of light was needed. The photo-Fenton treatment showed to be very effective to treat this particular wastewater in 2 h and with a high efficiency of H2O2 consumption. The experiments performed at bench scale allowed to propose a scheme for the in situ treatment of the alkaline cleaning solution wastewater, which could be extended to other similar wastewaters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 132, 20 August 2014, Pages 552-560
نویسندگان
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