کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
626293 | 1455445 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Demonstration of a treatment system for purification and reuse of laundry wastewater
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A pre-industrial scale experimentation aimed at the demonstration of a system for purification and reuse of wastewater from an industrial laundry was carried out by means of a prototype plant installed in situ, fed with 15 m3/h of untreated wastewater. The tested treatment system consisted of: (i) physico-chemical pre-treatment (coagulation, flocculation and Dissolved Air Flotation or DAF); (ii) sand filtration; (iii) ozonation; (iv) Granular Activated Carbon (GAC) filtration and (v) cross-flow ultrafiltration (UF) on flat membranes realised in polyvinyledene fluoride (PVDF). Under the optimised treatment conditions, it was demonstrated that the outlet of the GAC filter meets the requiring law limits for discharge to surface waters in Italy, even in terms of residual content of total surfactants (<2 mg/L). The post-treatment of ultrafiltration on flat membranes further reduced the residual pollutant content, allowing reuse of the treated effluents in some washing processes of home textiles, as demonstrated by whiteness index measurements. A cost analysis was performed to assess the operating costs of each treatment step.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 245, Issues 1â3, 15 September 2009, Pages 451-459
Journal: Desalination - Volume 245, Issues 1â3, 15 September 2009, Pages 451-459
نویسندگان
I. Ciabattia, F. Cesaro, L. Faralli, E. Fatarella, F. Tognotti,