AI SearchBiological sulphide oxidation in an airlift bioreactor (Record no. 12452)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04085nas a2200421 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817171510.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 050927s2005 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11971551 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-05-12 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Jenyuk Lohwacharin |
| 245 10 - TITLE STATEMENT | |
| Title | Biological sulphide oxidation in an airlift bioreactor |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2005 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 79 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-05-12 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Performance of an airlift reactor for biological sulphide removal process employing obligate chemolithotrophs was investigated for 155 days under ambient temperature. The experimental setup was consisted of feed tank, 5-1 airlift reactor, and settling tank for removal of biologically-produced sulphur. The airlift reactor was equipped with a draft tube through which air was sparged continuously for maintaining DO level in the range 0.2-1.0 mg/l as well as to generate airlift condition in the reactor. The reactor was also equipped with pH controller to maintain pH in the range 7.8-8.0. Effluent recirculation was employed whenever necessary in order to maintain oxygen-limited condition in the reactor. Deoxygenating with N2 gas was conducted to obtain low dissolved oxygen in the feed and nutrient tanks. At volumetric sulphide loading rate lower than 2.18 kgS/m3 -day, maintaining oxygenlimited condition was critical in optimizing elemental sulphur production. This was achieved by partial recirculation of the effluent to maintain dissolved oxygen below 0.2 mg/l. 50% of influent sulphide was converted to elemental sulphur. Beyond the loading rate of 2.18 kgS/m3 -day and DO concentration below 1.0 mg/l, elemental sulphur production gradually increased. The result implies that volumetric sulphide loading rate is the significant operational parameter under high influent-sulphide concentration. The airlift bioreactor was operated at the maximum volumetric sulphide loading rate of 4.0 kgS/m3 -day yielding the maximum sulphide consumption rate of 4.3 kgS/kgVSS-day and over 93 %-sulphide removal. 90% of sulphide removed was converted into elemental sulphur which was separated in settling tank as sulphur sludge with 40 percent sulphur content by weight. Addition of the selected coagulant, Polyaluminium chloride, was found to be effective for sulphur-particle aggregation. Optimal coagulant dose was found to be 0.71 g/l at pH 7.5 and a temperature of 30°C. Morphological examination of biomass suspension in the reactor by Scanning Electron Microscopy (SEM) showed that elemental sulphur was excreted on the bacterial surface and deposited extracellularly. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sulphides |
| General subdivision | Oxidation |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Bioreactors |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Visavanathan, C., |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Preeda Pakpian, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Thai Government Fellowships, |
| Relator term | Schorlarchip 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-05-12 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B09364">http://203.159.5.9/ait-thesis/detail.php?q=B09364</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11971551 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240329 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 050927 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 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 : 30050120747489 |
| CREATED | CREATED : 2004-04-30 |
| RECORD Id | RECORD # : i12460710 |
| LPATRON | LPATRON : 1018411 |
| LCHKIN | LCHKIN : 2006-12-07 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 6 |
| -- | TOT RENEW : 15 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120747497 |
| CREATED | CREATED : 2004-04-30 |
| RECORD Id | RECORD # : i12460722 |
| LPATRON | LPATRON : 1021438 |
| LCHKIN | LCHKIN : 2008-11-09 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 7 |
| -- | TOT RENEW : 9 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160050687 |
| CREATED | CREATED : 2016-05-25 |
| RECORD Id | RECORD # : i12991296 |
| 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 | 17/08/2026 | 50.00 | AIT Thesis no.EV-05-12 | 30050120747489 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.EV-05-12 | 30050120747497 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.EV-05-12 | 30050160050687 | 17/08/2026 | 17/08/2026 | 40-Archives |