کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9680824 1455505 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of activated carbon to polish effluent from metalworking treatment plant: comparison of different streams
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Use of activated carbon to polish effluent from metalworking treatment plant: comparison of different streams
چکیده انگلیسی
The treatment of waste metalworking fluids produces an aqueous phase which exhibits a high Chemical Oxygen Demand (COD) and which contains toxic components. In this work, the treatment plant includes ultrafiltration and nanofiltration membranes followed by a bioreactor and a microfiltration system. The product is a clear yellow aqueous phase containing residual levels of COD. Activated carbon is used in this work to eliminate residual dissolved organic compounds remaining after the treatment plant. Activated carbon treatment is tested at three different stages: after nanofiltration, to treat a nano-permeate; after the bioreactor, to treat bio-permeate containing biological materials; and finally after microfiltration, to treat the bio-permeate without microorganisms. The efficiency of activated carbon after each stage is studied and the results are compared. The adsorption experiments were carried out in two modes. Firstly, a batch system was used to investigate the adsorption capacity of the adsorbent and fit model isotherms. Secondly, fixed continuous systems were set-up, and the feasibility of a real treatment of such effluents was assessed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 185, Issues 1–3, 1 November 2005, Pages 297-306
نویسندگان
, , , ,