AI SearchAerobic digestion of waste activated sludge with ultrasonic pretreatment (Record no. 2657)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03670nas|a2200397 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817161801.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 071112s2007 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11890940 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-07-25 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Monruedee Moonkhum |
| 245 10 - TITLE STATEMENT | |
| Title | Aerobic digestion of waste activated sludge with ultrasonic pretreatment |
| 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. | 2007 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 77 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-07-25 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 2007 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Ultrasound pretreatment is very attractive option to enhance the digestion efficiency of waste activated sludge (WAS). It is gaining popularity because of its ability to breakdown the recalcitrant particles, compact design and no additional chemical requirement. The efficiency of the aerobic digestion of waste activated sludge containing 3% TS using ultrasonic pretreatment was determined at 2 different SRT of 10 and 20 days. WAS was sonicated for 150s with the ultrasonic density of 1.9 W/mL, at the frequency of 20 kHz and specific energy input of 9.5 kJ/kg TS. The ultrasonic pretreatment achieved the subsequent aerobic digestibility resulting better removal of Dissolved organic carbon (DOC). The DOC removal efficiency of part stream and full stream reactor improved by 26% and 28% respectively, at 10 days SRT compared to control reactor. Similarly, at 20 days SRT the efficiency of DOC removal of part stream and full stream reactor enhanced to 20% and 23% respectively, compared to control reactor. Correspondingly, VS removal of part stream and full stream reactor were found enhanced to 46% and 50% respectively at 10 days SRT in comparison to control reactor. Whereas at 20 days SRT VS removal efficiency were higher than control reactor by 32% and 36% respectively, for part stream and full stream reactor. TS removal efficiency of part stream and full stream reactor were found improved as well at 10 and 20 days SRT. Moreover, ultrasound pretreatment affected to enhance nitrification of part stream and full stream reactor. Due to the higher nitrate concentration was observed in part stream and full stream reactor. However, ultrasound pretreatment could not improved the dewater ability of digested sludge. As removal efficiency observed from part stream reactor were observed as in the same range. Thus, part stream reactor can be the better choice due to economic reasons. |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Activated sludge process |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Visvanathan, C., |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thammarat Koottatep, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dutta, Animesh, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Khanal, Samir Kumar, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | RTG Fellowship, |
| 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-07-25 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B10784">http://203.159.5.9/ait-thesis/detail.php?q=B10784</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11890940 |
| b | mnait |
| c | u |
| 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) | 071112 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 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 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120743413 |
| CREATED | CREATED : 2014-02-13 |
| RECORD Id | RECORD # : i12764772 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160049689 |
| CREATED | CREATED : 2016-05-30 |
| RECORD Id | RECORD # : i13003732 |
| 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-07-25 | 30050120743413 | 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-07-25 | 30050160049689 | 17/08/2026 | 17/08/2026 | 40-Archives |