کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
625793 1455435 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removing of urea and ammonia from petrochemical industries with the objective of reuse, in a pilot scale: Surveying of the methods of waste water treatment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Removing of urea and ammonia from petrochemical industries with the objective of reuse, in a pilot scale: Surveying of the methods of waste water treatment
چکیده انگلیسی

A pilot was designed for studying the methods of biological purification (aerobic and anaerobic) wastewater from petrochemical industries which are polluted with ammonia derivatives. Then water could be reused after purification in a production cycle. The pilot design was based on five stages: two aerobic, two anaerobic and sedimentation. When the pilot was installed the connections for loading and circulation were made. After installation of the pilot the recycling operation of sediment sludge from the bottom of the settler to the aerobic vessel was started. Since this sludge contains active microorganisms, it could enhance the efficiency of purification process in comparison with those without active sludge. Sampling from the vessels was done every two days, and tests were made for measurement of total alkalinity, ammonia, ammonium ion, suspended solids, COD, nitrogen dioxide and acidity, in which after 30 days from the first circulation, the samples were found to be without ammonia or its derivatives.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 256, Issues 1–3, June 2010, Pages 70–76
نویسندگان
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