MARC details
| 000 -LEADER |
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| fixed length control field |
04353nam a2200253 a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
vtls000078303 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
KUKTEM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251114204555.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
140519t2012 my a f m 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0004387(Local) |
| 039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE] |
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| Level of rules in bibliographic description |
201905161151 |
| Level of effort used to assign nonsubject heading access points |
rohana |
| Level of effort used to assign subject headings |
201710091625 |
| Level of effort used to assign classification |
aishah |
| -- |
201405190836 |
| -- |
Fida |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
TP248.25.B55 F35 2012 rs Thesis |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Muhammad Faisal Siddiqui |
| 245 10 - TITLE STATEMENT |
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| Title |
The anti-biofouling effect of piper betle extract on membrane biofouling in bioreactor for batik wastewater treatment / |
| Statement of responsibility, etc. |
Muhammad Faisal Siddiqui |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Kuantan, Pahang : |
| Name of publisher, distributor, etc. |
UMP, |
| Date of publication, distribution, etc. |
2012 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
xxi, 161 p. : |
| Other physical details |
ill. (some col.) ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Doctor of Philosophy (Bioprocess Engineering)) -- Universiti Malaysia Pahang - 2012 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Bibliography : p. 128-145 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Navigating novel biological route to mitigate biofouling is of great worth in order to allow sustainable performance of MBRs in wastewater treatment technology. Recently, it was confirmed that a number of natural compounds in plants have an anti-biofouling effect, reducing the formation of biofilm. The main objectives of this study were to investigate the anti-biofouling effects of Piper betle extract (PBE) on membrane biofouling and how PBE mitigates biofouling based on quorum sensing (QS). Membrane biofouling propensity was investigated for a bacterial consortium and bacterial strains of batik wastewater. During MBR operation with bacterial consortium, a significant relationship (R2= 0.9916) between extracellular polymeric substances (EPS) and transmembrane pressure (TMP) was revealed. MBR showed increased removal performance for dye and chemical oxygen demand (COD) removal with operation time. Fourier transform infrared spectroscopy (FTIR) showed the presence of EPS in membrane foulants. Furthermore, scanning electron microscopy (SEM) confirmed the occurrence of biofouling. The microtiter plat assay suggested that strain FS5 to be the major biofilm contributor. Batch tests of the production of EPS indicated that the Bacillus strain (FS5) produced a large amount of EPS compared to the bacterial consortium. This study addressed the feasibility of Piper betle extract (PBE) as anti-biofouling agent against the model organism Pseudomonas aeruginosa PAO1 and bacterial consortium. The anti-biofouling effects of PBE were evaluated via a microtiter plate assay; changes in the growth rate (ยต) and EPS production. SEM was employed to qualitatively illustrate the biofilm formation. The anti-biofouling effects of PBE revealed 80 % reduction in biofilm formation, growth rate (87%) and reduced the EPS production. Furthermore, it decreased the soluble EPS concentration, reduced the cake resistance, and a two-fold increase in time required to reach 33 kPa of TMP. The PBE indicated a negligible effect on endogenous decay rate and biomass yield. SEM of sludge particles in PBE bioreactor showed the presence of a mixture of bacteria on its surface with a clear spherical shaped boundary. Besides that PBE indicated negligible effects on biological treatment performance. Response surface methodology (RSM) has been employed to mitigate EPS, TMP rise-up control, and dye removal in ultrafiltration MBR. The optimum conditions found to be biofouling reducer (BFR) of 0.23 mg/mg MLSS, 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 closely agreed with the predicted values. The autoinducers production in bioreactor was confirmed using an indicator strain Agrobacterium tumefaciens. Moreover, three different AHLs were found in biocake using thin layer chromatographic analysis. An increase in EPS and TMP was observed with AHL activity of the biocake during continuous MBR operation, which shows that membrane biofouling was in close relationship with QS activity. PBE was verified to mitigate membrane biofouling via inhibiting AHLs production. These results exhibited that PBE could be a novel agent to target AHLs for mitigation of membrane biofouling based QS. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Bioreactors |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="http://ecollib.ump.edu.my/3885/">http://ecollib.ump.edu.my/3885/</a> |
| Public note |
Library access only |