Biofouling mitigation using Piper betle extract in ultrafiltration MBR

The control of membrane biofouling in the presence of Piper betle extract (PBE) as a biofouling reducer (BFR) has been investigated. Response surface methodology (RSM) has been employed to mitigate extracellular polymeric substances (EPS), transmembrane pressure (TMP) rise-up control, and dye remova...

Full description

Saved in:
Bibliographic Details
Published in:Desalination and water treatment 2013-11, Vol.51 (37-39), p.6940-6951
Main Authors: Siddiqui, M.F., Singh, L., Zularisam, A.W., Sakinah, M.
Format: Article
Language:English
Subjects:
Air flow
Applied sciences
Biodeterioration. Biofouling
Biofouling
Biofouling reducer
Biological and medical sciences
Biological treatment of waters
Biotechnology
Dyes
Environment and pollution
EPS
Exact sciences and technology
Extracellular polymeric substances
Fundamental and applied biological sciences. Psychology
Hydraulic retention time
Industrial applications and implications. Economical aspects
Industrial wastewaters
Membranes
Optimization
Piper betle
Pollution
Quorum sensing
Response surface methodology
Wastewaters
Water treatment
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The control of membrane biofouling in the presence of Piper betle extract (PBE) as a biofouling reducer (BFR) has been investigated. Response surface methodology (RSM) has been employed to mitigate extracellular polymeric substances (EPS), transmembrane pressure (TMP) rise-up control, and dye removal in membrane bioreactor. Factors investigated were: BFR dosage, air flow rate, and hydraulic retention time (HRT). Optimum conditions found to be BFR of 0.23 mg/mg mixed liquor suspended solids, HRT of 30.16 h, and air flow rate of 0.60 l/min, with predicted values as 28.28 mg/l of EPS, 24.16 kPa of TMP, and 95.65% dye removal, respectively. Validatory tests were carried out under the optimum conditions, which were closely agreed with the predicted values. These results depicted that RSM was one of the suitable methods to optimize the operating conditions to mitigate fouling in the presence of a BFR. PBE was verified to mitigate membrane biofouling via inhibiting autoinducers production. Furthermore, it was found that the addition of PBE decreased the amount of EPS in biocake; whereas the addition of autoinducer increased it. These findings revealed that PBE could be a novel agent to target quorum sensing, to mitigate membrane biofouling.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2013.793477