کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9681060 1455510 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrafiltration of kraft cooking liquors from a continuous cooking process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Ultrafiltration of kraft cooking liquors from a continuous cooking process
چکیده انگلیسی
Two cooking liquors and a black liquor were fractionated by ultrafiltration. The liquors were withdrawn from different stages in a kraft pulp mill employing continuous digestion. The ultrafiltration was performed at 90°C with two ceramic membranes with cut-offs of 5 kDa and 15 kDa. Only small differences in membrane performance were observed when concentrating the three liquors to 90% volume reduction. The average flux was 55 l/m2 h for the 5 kDa membrane and about 115 l/m2 h for the 15 kDa membrane. The concentration of lignin was on average 230 and 155 g/L in the retentate from the 5 kDa and 15 kDa cut-off membranes. The ash content was reduced from 37-40 g/g total dry solids to 20-30 g/g after ultrafiltration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 180, Issues 1–3, 15 August 2005, Pages 109-118
نویسندگان
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