Performance Evaluation Of Membrane Fouling AT Ultrafiltration Water Treatment plant Nawabshah (ME Thesis) (Record no. 56171)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03338nam a22001337a 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Lakho, Fida Hussain |
| -- | 13MEEE05 |
| -- | Supervisor - Dr. Abdul Qayoom Jakhrani |
| 245 ## - TITLE STATEMENT | |
| Title | Performance Evaluation Of Membrane Fouling AT Ultrafiltration Water Treatment plant Nawabshah (ME Thesis) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication | Nawabshah: |
| Name of publisher | QUEST, |
| Year of publication | 2016. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 121P, : |
| 500 ## - GENERAL NOTE | |
| General note | ABSTRACT<br/><br/>The major drawback of ultrafiltration water treatment technologies is the membrane fouling. The membranes are fouled due to blockage of membrane pores because of particulate adsorption present in feed water over the surface or inside of membrane pores. It results the decline of permeate flux and increase of trans-membrane pressure. The membrane fouling decreases the plant performance, increases energy demand due to increase of trans-membrane pressure and operating cost. Fouling mechanism mainly depend on the raw water quality such as PH, total dissolved solids, turbidity, ionic<br/>strength (magnesium ions, calcium ions, carbohydrates), and total hardness. The physical and operational parameters including trans -membrane pressure, pore size and temperature also contribute membrane fouling. The purpose of this study was to examine the performance of an installed ultrafiltration water treatment plant Nawabshah to investigate the major cause and mechanism of membrane fouling. For that. different quality parameters of feed product water and physical and operational parameters were investigated. The methods used and techniques adopted as per standards of American Public Health Association, United State Environmental Protection Agency and American Society for<br/>Testing and Materials.<br/><br/>The results revealed that the level of all quality parameters of product water such as pH, turbidity, TDS, EC, hardness, magnesium, calcium, chloride, sodium, and sulphate were within World Health Organizations standards. It was found that the trans-membrane pressure was directly proportional to the rate of membrane fouling and inversely proportional to the permeate flux. The membrane fouling became less at lower feed water temperatures and pre-treated feed waters. The membranes fouling were reduced by adopting some changes in time period of backwashes, chemical enhanced backwashes and clean in place methods. The proposed mechanism was examined before and after adopting the changes in operational parameters of the plant.<br/>The permeate fluxes of the plant were found 200m3/h and 209m3/h, rejection fluxes.<br/>12m3/h and3m3/h, and trans membrane pressure 0.9 bar, and 0.6 bar before and after modifications respectively. The above results confirmed that the proposed changes are effective as these are not only decrease the rate of membrane fouling but also increase the plant performance. lt is suggested. that the membrane fouling can also be reduced by pre -treatment of feed water and lowering the level of feed water temperature. In addition, the increasing time period of air scouring, forward flush and decreasing time interval of operating cycle can also decrease the chance of foulant deposition over membrane pores.<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/> <br/><br/><br/> |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Department of Energy & Environment Engineering |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://tinyurl.com/2x94zds6 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Thesis and Dissertation |
| Withdrawn status | Lost status | Home library | Current library | Date acquired | Accession Number | Koha item type |
|---|---|---|---|---|---|---|
| Research Section | Research Section | 28/11/2016 | MP/13-130 | Thesis and Dissertation | ||
| Reference Section | Research Section | 02/10/2018 | MP/27-308 | Thesis and Dissertation | ||
| Research Section | Research Section | 23/10/2023 | MP/79-1092 | Thesis and Dissertation |