Titre :

On-line biofouling monitoring and qualification based on local thermal and periodic excitation with MEMS sensor

Auteur(s) :

Boukazia, Y. [Auteur]
Toulouse Biotechnology Institute [TBI]
Delaplace, Guillaume [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Cadé, M. [Auteur]
Bellouard, F. [Auteur]
Fillaudeau, L. [Auteur]
Toulouse Biotechnology Institute [TBI]

Titre de la revue :

FOOD AND BIOPRODUCTS PROCESSING

Numéro :

126

Pagination :

12-22

Éditeur :

Elsevier

Date de publication :

2021-03

ISSN :

0960-3085

Mot(s)-clé(s) en anglais :

Fouling sensor
MEMS structure
Periodic thermal excitation
Spectral analysis
Biofouling monitoring and
qualification
Wastewater application

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Biotechnologies
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

Résumé en anglais : [en]

Water and wastewater processing (cooling tower, heat exchanger, treatment, etc.) generate desirable or undesirable biofouling (mineral, organic, biological) which may affect equipment or process performances. Fouling ...
Lire la suite >Water and wastewater processing (cooling tower, heat exchanger, treatment, etc.) generate desirable or undesirable biofouling (mineral, organic, biological) which may affect equipment or process performances. Fouling magnitude and nature stand as critical parameters to be evaluated in-situ and on-line to control and optimize the operation (production, cleaning). A fouling sensor based on a Micro-Electro-Mechanical Systems (MEMS) structure generating a local in-situ periodic thermal excitation (PTR) was studied in order to quantify and qualify fouling. At lab scale, model deposit (PVC) were used to simulate fouling conditions. Limits of detection (LOD) and quantification (LOQ) under steady and periodic thermal regimes were compared. Transposition to industrial conditions was investigated at pilot plant scale. A continuous bioprocess (PropellaTM reactor) was fed with diluted wastewater under controlled operating condition (temperature, mixing rate, flow rates, residence time) in order to mimic realistic industrial conditions and to generate a complex biofouling over six weeks. Thermal diffusivity, capacitive and resistive components are extracted from thermal spectrum response and a final fouling factor is introduced. Results demonstrate the ability to quantify and qualify a complex biofouling with in-situ and on-line information.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Date de dépôt :

2022-02-01T10:59:53Z
2022-02-01T11:01:53Z
2022-02-03T10:24:47Z