AI SearchAn integrative BOD model for municipal wastewater control to maintain water quality in the west lake of Hanoi city (Record no. 61768)
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| fixed length control field | 04007nas a2200421 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818143617.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 090300s1999 th uu m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1177986x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.UE-98-3 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Nguyen Duc Toan |
| 245 13 - TITLE STATEMENT | |
| Title | An integrative BOD model for municipal wastewater control to maintain water quality in the west lake of Hanoi city |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1999 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 99 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. UE-98-3 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science. School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1999 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | West Lake is located within Hanoi City, the capital of Vietnam. However, water quality in the lake has been polluted. More precisely, pollution is P- Mezosaprobe type. The major cause for this has been identified as the direct discharge of wastewater into the Lake. The construction of a BOD model is needed to serve as a tool for water environmental management. The model should incorporate both exogenous and endogenous factors to reflect the effects of climate, waste load, and biological processes in the lake's water body over time, especially for a long-term perspective. A relevant BOD model has been developed based on mass balance equation of BOD, phytoplankton and phosphorus, and calibrated based on available data. The model's emphasis is placed on relationships between water quality in the Lake and BOD content in wastewater to assess the water quality change in terms of seasons and time scales. The model's simulation indicates that water quality of the Lake, with the city's master plan, will be rapidly degraded in the years to come and will reach a level much lower than the water quality standard. Extensive experiments with the model reveal different effects on water quality of different levels of BOD input reduction. If an acceptable long-term water quality is to be achieved, a substantial wastewater pre-treatment at sources (to reduce up to 40% BOD input) is required along with a central treatment plant afterward. The technical and administrative aspects of wastewater control framework as required have been discussed for implementing, by taking into account economic efficiency and suitability criteria as well as socio-economic conditions. Thus, the study aims to identify the close relationship between the water quality management and waste water control by subsuming the cause and effect factors that have been widely recognized, so that water quality can be maintained by controlling discharged wastewater. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Biochemical oxygen demand |
| 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 | Nguyen Luong Bach, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zimmermann, Willi, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Morishita, Hideharu, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Swiss Agency for Development and Cooperation (SDC), |
| 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. UE-98-3 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B12331">http://203.159.5.9/ait-thesis/detail.php?q=B12331</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b1177986x |
| b | mnait |
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| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 250221 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 000309 |
| First date, FD (RLIN) | m |
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| 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 : 30050120426761 |
| CREATED | CREATED : 2000-07-03 |
| RECORD Id | RECORD # : i12179024 |
| LPATRON | LPATRON : 1021891 |
| LCHKIN | LCHKIN : 2011-03-18 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120426779 |
| CREATED | CREATED : 2000-07-03 |
| RECORD Id | RECORD # : i12179036 |
| LPATRON | LPATRON : 1017764 |
| LCHKIN | LCHKIN : 2006-12-07 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160021191 |
| CREATED | CREATED : 2016-01-18 |
| RECORD Id | RECORD # : i12869302 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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| 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 | 18/08/2026 | 50.00 | AIT Thesis no.UE-98-3 | 30050120426761 | 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 | 50.00 | AIT Thesis no.UE-98-3 | 30050120426779 | 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.UE-98-3 | 30050160021191 | 18/08/2026 | 18/08/2026 | 40-Archives |