Pilot scale experiment with MBR operated in intermittent aeration condition: Analysis of biological performance

被引：40

作者：

Capodici, M. ^{[1
]}

Di Bella, G. ^{[2
]}

Di Trapani, D. ^{[1
]}

Torregrossa, M. ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Ingn Civile Ambientale Aerospaziale, I-90128 Palermo, Italy

[2] Univ Enna Kore, Fac Ingn & Architettura, I-94100 Enna, Italy

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 177卷

关键词：

Intermittent aeration; Biological treatment; Activated sludge; MBR systems; WASTE-WATER TREATMENT; ALTERNATE-CYCLES PROCESS; OXIC-ANOXIC PROCESS; REAL-TIME CONTROL; MEMBRANE BIOREACTOR; ACTIVATED-SLUDGE; REMOVAL; ORP; PH; DENITRIFICATION;

D O I：

10.1016/j.biortech.2014.11.075

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The effect of intermittent aeration (IA) on a MBR system was investigated. The study was aimed at analyzing different working conditions and the influence of different IA cycles on the biological performance of the MBR pilot plant, in terms of organic carbon and ammonium removal as well as extracellular polymeric substances (EPSs) production. The membrane modules were placed in a separate compartment, continuously aerated. This configuration allowed to disconnect from the filtration stage the biological phenomena occurring into the IA bioreactor. The observed results highlighted good efficiencies, in terms of organic carbon and ammonium removal. It was noticed a significant soluble microbial products (SMPs) release, likely related to the higher metabolic stress that anoxic conditions exerted on the biomass. However, the proposed configuration, with the membranes in a separate compartment, allowed to reduce the EPSs in the membrane tank even during the non-aerated phase, thus lowering fouling development. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：398 / 405

页数：8

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