AI SearchEffect of aeration on methane release and oxidation in urban canals : (Record no. 34116)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04565nas a2200385 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818094844.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 260616s20269999th u ms t 000 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12508317 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-26-21 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Suphanat Suwantep |
| 245 10 - TITLE STATEMENT | |
| Title | Effect of aeration on methane release and oxidation in urban canals : |
| Remainder of title | a linear analysis |
| 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. | 2026 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 89 leaves : |
| Other physical details | ill.+ |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-26-21 |
| 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 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Eng.) - Asian Institute of Technology, 2026 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Urban canals are significant yet underrepresented sources of methane (CH₄), a potent greenhouse gas with a global warming potential 34 times greater than carbon dioxide over a 100-year horizon. These stagnant, shallow, and nutrient-rich water bodies create favorable conditions for anaerobic methanogenesis, but their mitigation potential through artificial aeration remains poorly understood. This study evaluated the effectiveness of venturi pump-induced aeration in reducing methane emissions from a stagnant urban canal at the Asian Institute of Technology (AIT) campus, Pathum Thani, Thailand, with a focus on spatial and temporal methane dynamics. Two experiments were conducted. First, a spatial experiment deployed floating chambers at distances of 1 to 5 meters from a continuously operating venturi pump over three weeks to assess methane flux gradients along the oxygen gradient. Second, a controlled temporal experiment using static chambers with manually introduced methane compared consumption rates between the aerated treatment canal and a non aerated control canal over 96 hours. Water quality parameters including NH₄⁺, NO₂⁻, NO₃⁻, and total organic carbon (TOC) were monitored, and dissolved oxygen was measured across spatial grids before and after aeration. In the spatial experiment, a directional decrease in methane flux was observed from 1 m (204.12 mg/m²/day) to 3 m (137.01 mg/m²/day) in the treatment canal, though the effect was not statistically significant (ANOVA, p > 0.05), likely due to spatially heterogeneous ebullition. Dissolved oxygen in the treatment canal reached 5.62{u2013}5.92 mg/L following aeration, representing a biologically meaningful increase from baseline levels. In the temporal experiment, the treatment canal exhibited a steeper rate of methane flux decline ({u2212}4,396.6 mg/m²/day²) compared to the control canal ({u2212}3,222.8 mg/m²/day²), indicating approximately 36% greater methane consumption potential under aeration. Spearman correlation analysis revealed a statistically significant negative relationship between methane flux and the change in NH₄⁺ (u = {u2212}0.52, p = 0.009), indicating competition between methanotrophic and nitrifying bacteria for the limited dissolved oxygen supplied by the pump.The findings demonstrate that venturi aeration activates the natural biological methane filter already present in urban canal systems, though a single small-scale unit provides insufficient oxygen to fully suppress emissions dominated by ebullition or to simultaneously optimize both methane oxidation and nitrogen cycling. This study contributes evidence for low-energy venturi aeration as a scalable, low-cost greenhouse gas mitigation strategy for stagnant urban waterways in tropical cities. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Methane |
| General subdivision | Environmental aspects |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Cruz, Simon Guerrero, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ekbordin Winijkul, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ghimire, Anish, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Thai Government 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-26-21 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B24464">http://203.159.5.9/ait-thesis/detail.php?q=B24464</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12508317 |
| b | mnarc |
| c | a |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 260622 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 260619 |
| First date, FD (RLIN) | m |
| -- | h |
| -- | a |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : - |
| CREATED | CREATED : 2026-06-16 |
| RECORD Id | RECORD # : i13605574 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120420897 |
| CREATED | CREATED : 2026-06-17 |
| RECORD Id | RECORD # : i13606025 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 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 | Date last seen | Copy number | Price effective from | Koha item type | Barcode |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-26-21 | 18/08/2026 | 1 | 18/08/2026 | 67-Electronic Resource | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-26-21 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives | 30050120420897 |