Experimental Investigation of Biomass Attachment to Wastewater Reactors

R. Benintendi
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Abstract

Attached mass bioreactors have extensively been adopted in the last decades when specific needs have suggested this choice. Benefits and advantages of this multi-faceted technology in wastewater treatment processing are well known, along with the kinetic and mass transfer aspects regarding their operation, essentially belonging to the mass transfer with chemical reaction theory applied to enzymatic catalysis, referred to as Languimur-Hinshelwood kinetics, notably Monod/Michaelis Menten equations. On the other hand, a consolidated literature has dealt with many aspects of the development of strain colonies forming a biofilm. However, a few works have been devoted to the systematic analysis of its physiology, within the framework of the wastewater management of complex substrates and high-loads effluents. This article presents the experimental findings of a research activity covering the junction area between microbiology and bioreactor engineering, against a multifaceted set of operating parameters directly affecting health and stability of the attached biomass. In this respect, important results have been obtained, providing guidance on the attached mass reactor start-up, steady- state operation, impact of xenobiotic substrates, role of nutrients, filaments and foam formation, as well as qualitative aspects of the post-treatment effluent.
生物质在废水反应器上附着的实验研究
在过去的几十年里,当特定的需求建议这种选择时,附着式质量生物反应器被广泛采用。众所周知,这种多方面技术在废水处理处理中的好处和优势,以及其操作的动力学和传质方面,本质上属于应用于酶催化的传质化学反应理论,称为langimur - hinshelwood动力学,特别是Monod/Michaelis Menten方程。另一方面,一个巩固的文献已经处理了菌株菌落形成生物膜的发展的许多方面。然而,在复杂基质和高负荷出水的废水管理框架内,已经有一些作品致力于系统分析其生理学。本文介绍了一项研究活动的实验结果,该研究活动涵盖了微生物学和生物反应器工程之间的连接区域,针对直接影响所附生物质健康和稳定性的多方面操作参数。在这方面,已经取得了重要的结果,为附加的质量反应器的启动、稳态运行、异种基质的影响、营养物的作用、细丝和泡沫的形成以及后处理废水的质量方面提供了指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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