AI SearchDeveloping modified multi-soil layer-based constructed wetlands for the treatment of septic tank effluent (Record no. 28316)
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| 000 -LEADER | |
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| fixed length control field | 04657nas a2200481 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818090517.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 240306s20219999th u m tt 000 a eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12422514 |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-21-27 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Le Gia Ky |
| 245 10 - TITLE STATEMENT | |
| Title | Developing modified multi-soil layer-based constructed wetlands for the treatment of septic tank effluent |
| 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. | 2021 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 69 leaves : |
| Other physical details | ill.+ |
| Accompanying material | 1 online reource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-21-27 |
| 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, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Eng.) - Asian Institute of Technology, 2021 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | While on-site treatments for black water was unable to have effluent quality that meet the standard discharge, constructed wetlands was considered as secondary treatment due to its advantages on operation cost and removal efficiency. Combining the multi-soil-layer system with constructed wetland would improve its performance in various aspects such as land area requirement, hydraulic retention time (HRT), etc. Moreover, another important advantage of multi-soil-layer system based constructed wetland (MSL-CW) is its flexibility. This research focused on developing two customized MSL-CWs to improve model{u2019}s performance on some specific parameter. In the first MSL-CW (reactor 2), iron slag was added in soil-mixed block (SMB) to have composition of lateritic soil (70%), sawdust (10 %), iron slag (10%) and charcoal (10 %). The main purpose of adding iron slag was improving Phosphorus removal. In second MSL-CW (reactor 3), SMB composition was Lateritic soil (70%), sawdust (15 %) and charcoal (15 %) but a 7cm soil layer was added on the top of reactor. The addition soil layer could enhance the microbial community on the surface of MSL-CW and plant growth potentially. The models were operated in 3 different retention time (36h, 24h and 12h). The results showed were high TSS removal rates of three reactors from the start (>99%) but still reactor 3 had slightly better efficient removal. Reactor 3 effluent also had the lowest concentration in both TCOD and SCOD at any HRT. Similar pattern was showed with BOD5 treatment, reactor 3 consistently had highest removal efficiencies. For TKN and NH3-N, Zeolite layer and its ion-exchange mechanism to remove ammonium ion made reactor 2 had the lowest concentration of all reactors regardless HRT. Moreover, a notable improvement in phosphorus removal in reactor 2 indicated that adding iron in SMB can promote phosphorus assimilation. One-way ANOVA results also confirmed the advantages of these modified MSL-CWs as the results showed the significant differences in all reaction rates at any HRT. Kinetic model validation test demonstrated that both TCOD and TKN removal follow first order kinetic in all three reactors while TP removal in reactor 2 and reactor 3 did not approach first order kinetic. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Septic tanks |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Wetlands |
| General subdivision | Design and construction |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thammarat Kootattep, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ekbordin Winijkul, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tatchai Pussayanavin, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | AITCV Silver Anniversary Scholarships, |
| Relator term | Scholarship Donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | AIT 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-21-27 |
| 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=B20495">http://203.159.5.9/ait-thesis/detail.php?q=B20495</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12422514 |
| b | mnait |
| c | a |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 250219 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 240330 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | a |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121039506 |
| CREATED | CREATED : 2024-06-03 |
| RECORD Id | RECORD # : i13489549 |
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| Barcode | Barcode : - |
| CREATED | CREATED : 2024-06-03 |
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| Barcode | Barcode : 30050120913487 |
| CREATED | CREATED : 2025-01-22 |
| RECORD Id | RECORD # : i13529201 |
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| Barcode | Barcode : 30050120913495 |
| CREATED | CREATED : 2025-01-22 |
| RECORD Id | RECORD # : i13529213 |
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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 | Cost, normal purchase price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-21-27 | 30050121039506 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-21-27 | 18/08/2026 | 18/08/2026 | 67-Electronic Resource | |||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-21-27 | 30050120913487 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | 50.00 | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-21-27 | 30050120913495 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | 50.00 |