AI SearchCoupling of dissolved air flotation and crossflow microfiltration for the separation of fiber (Record no. 24110)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04043nam a2200409 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818085348.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11494827 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-95-10 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Niriella, D. P. W. H. |
| 245 10 - TITLE STATEMENT | |
| Title | Coupling of dissolved air flotation and crossflow microfiltration for the separation of fiber |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1995 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 135 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-95-10 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Eng.) - Asian Institute of Technology, 1995 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the Degree of Master of Engineering. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The goal of this research was to investigate the possibility of coupling Crossflow Microfiltration (CFMF) with Dissolved Air Flotation (DAF) for fiber separation. In the first stage of experiments, a Jar test was conducted to obtain optimum Alum and polyelectrolyte dosage required to produce floes. In the second stage, DAF batch experiments were conducted to investigate the effects of saturation pressure, recycle ratio and A/S ratio on the suspended solids removal. In the third stage CFMF runs were conducted to optimize the parameters which effect the flux in CFMF operations. During this stage the following parameters were examined. Crossflow velocity (2.0-6.0 m/s), feed concentration (100-2000 mg/L), transmembrane pressure (50-300 kPa), membrane pore size (0.2-5.0 micron). Once the optimum parameters were found they were tested for both flocculated and unflocculated feed. At the fourth stage, coupling DAF with CFMF was done inorder to observe the effects the introduction of air bubbles would have on permeate flux. In these runs saturation pressure of 400-800 kPa and recycle ratio of 8-30 % was adopted. From the stage one runs, it was found that an alum and polyelectrolyte dose of 140 and 0.5 mg/L was required at pH = 6.0 to fully destabilize fiber and to form floes . From stage two, it was found that with increasing recycle ratio there was an increased suspended solids removal. Here 97 % suspended solids removal rate was achieved at an A/S ratio of 0.075. Results from stage three show that permeate flux increased with increased crossflow velocity upto 4.0 mis and thereafter further increases in velocity decreased flux. Increases in transmembrane pressure increased flux , whereas there was an inverse relationship between feed concentration and flux. The addition of alum and polyelectrolyte decreases permeate flux by near! y 100 % . In stage four, with the introduction of air bubbles, flux increased beyond the flux obtained by stage three runs only beyond a bubble number concentration of 2.3*105 No./mL. for flocculated feed. However, for unflocculated feed this was not observed. |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Filters and filtration |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Visvanathan, C., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Boonthanon, S., |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Swedish International Development Authority, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. EV-95-10 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B15116">http://203.159.5.9/ait-thesis/detail.php?q=B15116</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11494827 |
| b | mnait |
| c | v |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240404 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 960625 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | v |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050004036215 |
| CREATED | CREATED : 1994-12-22 |
| RECORD Id | RECORD # : i11758697 |
| LPATRON | LPATRON : 1015812 |
| LCHKIN | LCHKIN : 2003-11-02 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 1 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050004036199 |
| CREATED | CREATED : 1994-12-22 |
| RECORD Id | RECORD # : i11758715 |
| LPATRON | LPATRON : 1012449 |
| LCHKIN | LCHKIN : 1999-01-09 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 2 |
| -- | TOT RENEW : 2 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160079355 |
| CREATED | CREATED : 2016-05-23 |
| RECORD Id | RECORD # : i1298520x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 30.00 | AIT Thesis no. EV-95-10 | 30050004036215 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 30.00 | AIT Thesis no. EV-95-10 | 30050004036199 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. EV-95-10 | 30050160079355 | 18/08/2026 | 18/08/2026 | 40-Archives |