AI SearchSludge bulking and its control in modified A/O processes (Record no. 107586)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03325nam a2200445 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818214207.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10606166 |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | En |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-94-29 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Yuthana Tanwongwan |
| 245 #0 - TITLE STATEMENT | |
| Title | Sludge bulking and its control in modified A/O processes |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1994 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 83 leaves |
| 440 #0 - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| Title | Asian Institute of Technology. Thesis ; |
| Volume/sequential designation | no. EV-94-29 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science, School of Environment, Resources & Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Sc.) - Asian Institute of Technology, 1994 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | It is known that A/O process can produce well-settling sludge. But sludge bulking can also occur in these processes due to some causes such as composition of wastewater, operating conditions, and, configurations of the systems. From this experiment, it has been observed that 0.2 mIJL of acetic acid can cause zoogloea bulking in A/O processes which had only two anaerobic tanks but the process that had three anaerobic tanks can control this kind of bulking. It also has been observed that strictly anaerobic initial contact zone (ICZ) can suppress filamentous bulking more effective than anoxic one. Furthermore, some of unsuitable operating conditions , i.e. too low organic loading, too high return sludge ratio, and too long influent hydraulic retention time can deteriorate sludge settleability and phosphorus removal efficiency but improve the removal efficiency of nitrogen. Additionally, it has been found that concept of contact stabilization activated sludge, i.e. reaeration of return sludge, is difficult to be applied with A/O process because it can introduce small amount of dissolved oxygen into ICZ so filamentous bacteria can use this 00 as electron acceptor in their metabolic mechanisms. Floes in units which had reaeration were very small siz.e and not compact. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Activated sludge process |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Samorn Muttamara, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lee, Seong-Key, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Umita, Teruyuki, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Thai Government, |
| Relator term | Scholarship Donor |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B15803">http://203.159.5.9/ait-thesis/detail.php?q=B15803</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10606166 |
| b | mnait |
| c | - |
| 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 |
| -- | - |
| -- | 0 |
| 940 ## - EQUIVALENCE OR CROSS-REFERENCE--UNIFORM TITLE [OBSOLETE] [CAN/MARC only] | |
| Uniform title | <a href="AIT Thesis no. EV-94-29">AIT Thesis no. EV-94-29</a> |
| Language of a work | mnait |
| -- | b |
| -- | m |
| -- | 099 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| i | 30050001131381 |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| i | 30050001131399 |
| c | c. 2 |
| l | mnait |
| 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 : 30050003048005 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10767812 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003048013 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10767824 |
| LPATRON | LPATRON : 1012460 |
| LCHKIN | LCHKIN : 1999-07-25 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160055322 |
| CREATED | CREATED : 2016-11-05 |
| RECORD Id | RECORD # : i1297559x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | 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 | 18/08/2026 | AIT Thesis no. EV-94-29 | 30050003048005 | 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 | AIT Thesis no. EV-94-29 | 30050003048013 | 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-94-29 | 30050160055322 | 18/08/2026 | 18/08/2026 | 40-Archives |