The review of aeration systems for biological wastewater treatment

Abstract

This article presents different aeration systems for biological wastewater treatment, their classification, also advantages and disadvantages of the most common aeration methods - pneumatic and mechanical are described. Also, proposals to reduce the energy consumption of aeration systems by maintaining the optimal range of dissolved oxygen concentration at different points of the aeration tank, depending on its type, have been prepared.

Improving the efficiency of biological treatment of industrial wastewater as part of urban wastewater

“…Для проведения эксперимента была разработана и смонтирована установка, имитирующая работу аэротенка, состоящая из четырёх ёмкостей объёмом 7 л, компрессоров и аэраторов. Максимальная производительность компрессора составляла 5 л/мин, и подаваемый воздух использовали для обеспечения жизнедеятельности активного ила, а также для перемешивания активного ила и ПУ [19]. Для аэрации применяли круглые аэраторы диаметром 130 мм с дисперсностью пузырьков воздуха 0,35±0,15 мм.…”

Design and Analysis of a Novel Air Bubble Curtain for Mixing and Aeration in Process Vessels

“…For many years, air was used for agitating and mixing in the process industry; the recycling of newspaper; the processing of beer, dyes, and mineral pulp; oxidation; hydrogenation; biological fermentation; antibiotic development; and many other processes [1][2][3]. In aerated mixing vessels, gases and liquids come in contact with each other and are mixed to reach steady conditions and uniformity [4,5].…”