AI SearchApplication of multi-stage reversing flow bioreactor in domestic wastewater treatment (Record no. 6719)
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|---|---|
| fixed length control field | 04147cas|a2200421 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162922.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170399s1991 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10088349 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-91-13 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Basu, Saibal Kumar |
| 245 10 - TITLE STATEMENT | |
| Title | Application of multi-stage reversing flow bioreactor in domestic wastewater treatment |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1991 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 114 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-91-13 |
| 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, 1991 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | A relatively new process, the Multi-Stage Reversing Flow Bioreactor (MRB) has been found to be effective for the treatment of weak wastewater utilizing the interrelationship among microorganism related to sulfur metabolism, by introducing a limited oxygen supply to the sludge blanket type bioreactor. It appears that most of the advantages of the conventional aerobic and anaerobic treatment can be utilized with the disadvantages minimized with this process. A laboratory scale MRB reactor employing a five stage unit of total volume 173 litres was operated for 120 days after start up using domestic wastewater from AIT campus. The effect of various hydraulic and organic loadings on process efficiency were measured to estaplish the optimum operating conditions and to simulate granulation in the system. Routine continuous tests, steady state experiments and batch tests were carried out in three phases to study the mechanism associated in organics removal, sludge production and the possibility of nitrification in the system. The stabilization of organic matter was essentially via sulfur metabolism in the BV's and to some extent by aerobic metabolism in the AV's. COD removal due to methanogenesis was negligible. Although no discrete microbiological granules developed, the high effectiveness of the process was due to accumulation of a highly dense floculated sludge especially from BV1 to BV4 and light aerobic sludge in BV5 the later imparting a polishing treatment to the wastewater. After operating the MRB with a HRT of 2.5-4.5 hours (flow rates: 1.15 l(m - 0.64 l/m) and an organic loading ranging from 0.45 Kg COD/m3.d - 5.9 Kg COD/m3.d an optimum condition of HRT = 4.5 hours and an Organic loading of about 2 Kg COD/m3.d were realized. Under these conditions a removal efficiency of 93% and 94% for Total-COD and Filtrate-COD respectevly were achieved. The typical Yield Coefficient value for MRB was found to be 0.133 which supports the postulate of low sludge production in the system It was also possible by introducing plastic tube media in the 4th & 5th AV's to prevent sulfide build-up and enhance nitrification. The extent of denitrification was however negligible. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Biological treatment |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mino, Takashi, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Verink, Johan, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Harada, Hideki, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | The Roya l Norwegian Government (Norade Scholarship), |
| 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-91-13 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B17403">http://203.159.5.9/ait-thesis/detail.php?q=B17403</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10088349 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240410 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | x |
| -- | 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 | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120124648 |
| CREATED | CREATED : 2014-03-28 |
| RECORD Id | RECORD # : i12781460 |
| LPATRON | LPATRON : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160056486 |
| CREATED | CREATED : 2016-11-05 |
| RECORD Id | RECORD # : i12974419 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121074909 |
| CREATED | CREATED : 2023-03-20 |
| RECORD Id | RECORD # : i13439091 |
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| 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-91-13 | 30050120124648 | 17/08/2026 | 3 | 17/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.EV-91-13 | 30050160056486 | 17/08/2026 | 17/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Thesis no.EV-91-13 | 30050121074909 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication |