Mirjana Galant, Dijana Grgas, Tea Štefanac, M. Habuda-Stanić, T. Landeka Dragičević
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引用次数: 0
Abstract
Nitrogen removal efficiency related to the dissolved oxygen (DO) concentration (DO 1–7 mg l −1 ), carbon/nitrogen ratio (COD/N 1–14), and the effect of airflow (0.4–2.9 l min −1 ) related to the granule size were investigated. The average chemical oxygen demand (COD) removal of ≥ 90 % was achieved at COD/N ≥ 11, but the satisfactory N values in effluent for discharge into the surface waters were almost achieved at COD/N 14. DO of 2 mg l −1 is recommended for efficient removal of N and COD with mature granules. The size (diameter) of the granules decreases with increased airflow
期刊介绍：
Kemija u industriji (Chemistry in industry) is monthly journal which is being published already for almost 60 years continually and from very beginning it is a journal of chemists and chemical engineers. It is official journal of Croatian Society of Chemists and Engineers and of Croatian Chemical Society. It is edited by Croatian Society of Chemists and Engineers.
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