AI SearchBiological nitrogen removal under inhibitory conditions in a sequencing batch reactor (Record no. 12425)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04195nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817171506.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 011298s1998 th r 0000|0 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11733846 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-98-14 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Karn, Sunil Kumar |
| 245 10 - TITLE STATEMENT | |
| Title | Biological nitrogen removal under inhibitory conditions in a sequencing batch reactor |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1998 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 113 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-98-14 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This study was carried out to investigate the nitrogen removal from wastewater under inhibitory conditions using Sequencing Batch Reactor (SBR). Synthetic wastewater containing aniline was used as feed. A 40-liter laboratory scale SBR was operated with aniline containing synthetic wastewater during the entire investigation. Aniline concentration in the feed was increased gradually from 100 to 450 mg/l while the total cycle time of the SBR was reduced from 12 hours to 8 hours. The cycle time was optimized by reducing the time of react phase of the cycle. Performance of the reactor was observed at different react phases ranging from 9 hours (3 hours aerobic and 6 hours anoxic) to 3.75 hours (1.75 hours aerobic and 2 hours anoxic). The optimal react time was achieved at 4.75 hours (2.25 hours aerobic and 2.5 hours anoxic). At this period, removal of aniline, COD and total nitrogen was observed more than 98%, 95% and 85% respectively for the feed aniline concentrations up to 450 mg/I. The average rate of reaction during aerobic and anoxic phases for aniline biodegradation, nitrification and denitrification were found as 20-40, 2-4 and 1.5-4.0 mg/gVSS/hr respectively. Profiles of pH, DO and ORP during the react phase were successfully simulated to indicate the specific process changes as the start and end of nitrification and denitrification processes. The effect of inhibition due to aniline was observed during the nitrification process. Conversion of NH4 + to N0 2- by Nitrosomonas was not initiated until the concentration of aniline inside the reactor had dropped below 4-5 mg/I. Similarly, conversion ofN02- into N03- by Nitrobacter was inhibited when the concentration of aniline in the feed was reached to about 400 mg/I. Furthermore, as the concentration of aniline in the feed was increased over 450 mg/I, the conversion of N02- into N03- had almost ceased. Nitrobacter activity could not be revived even after aniline concentration in feed was reduced to 300 mg/I. However, there was no significant loss in the total nitrogen removal efficiency of the SBR due to the effects of inhibition as N02- produced by Nitrosomonas could still be denitrified under anoxic condition. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Nitrogen removal |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dahl-Madsen, Karl Iver, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kim Oanh, N. T., |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Denmark (DANIDA), |
| 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-98-14 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B13469">http://203.159.5.9/ait-thesis/detail.php?q=B13469</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11733846 |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240407 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 981201 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | y |
| -- | 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 : 30050120714430 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i12110164 |
| LPATRON | LPATRON : 1017102 |
| LCHKIN | LCHKIN : 2005-10-19 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 11 |
| -- | TOT RENEW : 12 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120714422 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i12110176 |
| LPATRON | LPATRON : 1017857 |
| LCHKIN | LCHKIN : 2005-05-30 |
| RENEWALS | # RENEWALS : 0 |
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| -- | TOT CHKOUT : 12 |
| -- | TOT RENEW : 8 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160077979 |
| CREATED | CREATED : 2016-05-23 |
| RECORD Id | RECORD # : i12987542 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | 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 | AIT Thesis no. EV-98-14 | 30050120714430 | 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 | AIT Thesis no. EV-98-14 | 30050120714422 | 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-98-14 | 30050160077979 | 17/08/2026 | 17/08/2026 | 40-Archives |