AI SearchAnaerobic digestion of waste activated sludge with ultrasonic pretreatment (Record no. 4362)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03588nas|a2200397 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162228.0 |
| 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 | .b11890927 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-07-27 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Navaneethan, Navaratnam |
| 245 10 - TITLE STATEMENT | |
| Title | Anaerobic 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 | 109 p. : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-07-27 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Ultrasonication of waste activated sludge is usually applied in the enhancement of sludge solubilization and sludge disintegration. This research examines the effectiveness of ultrasound pretreatment on waste activated sludge (WAS) disintegration at different specific energies and sonication durations in the anaerobic digestibility of control, full stream and part stream (50% sonicated + 50% nonsonicated sludge) sonicated WAS. A specific energy of 12 kWs/gTS was the maximum specific energy for the effective disintegration of WAS. The mesophilic digester was operated with SRTs of 20 and 15 days. The ultrasonic pretreatment enhanced the subsequent anaerobic digestibility resulting better removal of TS and VS. The biogas production rate in the full Stream and part stream digesters was increased by 102% and 91% respectively, for a SRT of 20 days in comparison to the control digester, whereas at an SRT of 15 days, the biogas production rate was increased in the full stream and part stream digesters by 81.4% and 57.1 respectively. Although, the specific biogas production was the same in full stream and part stream digesters for both SRTs, which is 0.500 L/g VS removed in a SRT of 20 days and 0.64 L/g VS removed in a SRT of 15 days respectively. The dewaterabilty of the sludge was ranked in the ascending order as full stream, part stream, control digester sludge and raw sludge. Based on the energy balance, energy gained from biogas in the full stream is around two folds compared to energy gained from biogas from control digester. In part stream digester, around 88% of sonication energy input can be replenished in the form of biogas energy. The ultrasonic pretreatment improved the VS hydrolysis coefficient in the full and part stream digesters for both SRTs. |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering 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 | Chongrak Polprasert, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Examination Committee |
| 700 1# - 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 | THAILAND (HM Queen), |
| 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-07-27 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B10788">http://203.159.5.9/ait-thesis/detail.php?q=B10788</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11890927 |
| 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 : 30050120379945 |
| CREATED | CREATED : 2014-02-13 |
| RECORD Id | RECORD # : i12764917 |
| LPATRON | LPATRON : 1026123 |
| LCHKIN | LCHKIN : 2017-04-18 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 3 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160049663 |
| CREATED | CREATED : 2016-05-30 |
| RECORD Id | RECORD # : i13003768 |
| 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-07-27 | 30050120379945 | 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-07-27 | 30050160049663 | 17/08/2026 | 17/08/2026 | 40-Archives |