AI SearchAmmonia-nitrogen removal in water hyacinth-gravel system (Record no. 4299)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03660nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162216.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 120399s1989 th r 0000|00eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1006848x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-89-16 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Montalbo, Andrew T. |
| 245 10 - TITLE STATEMENT | |
| Title | Ammonia-nitrogen removal in water hyacinth-gravel system |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1989 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 85 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-89-16 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Improvement of the existing water hyacinth system by adding gravel media to remove NH3-N ·from the wastewater was evaluated in this study. The gravel was laid at the bot tom of the tank to provide support to the growth of denitrifying bacteria. Vertical baffles were constructed between width of the tank to avoid flow short circuiting . The system is termed hereafter as water hyacinth- gravel system. The study was conducted in three modes of operation. The mode 1 operation compared the treatment efficiencies of water hyacinth- gravel system with the water hyacinth system without gravel. The results obtained showed that 89.7% of NH3-N was removed in the water hyacinth- gravel system compared to 71.3% in the water-hyacinth system without gravel at the 20 d hydraulic retention time (HRT) . Other water quality parameters were also monitored which showed in a better performance of the water hyacinth-gravel system in treating wastewater than the existing water hyacinth system without gravel. In the mode 2 operation, the water hyacinth-gravel system was operated with effluent recycle. The system with effluent recycle had NH3 -N removal of 48. 496 compared to the the system without recycle which had 34 . 8% of NH3 -N removal. The mode 3 operation determined the effects of increasing the tank length by connecting the 2 water hyacinth-gravel tanks in series. It was found out that about 70% of Nff3-N was removed in the second tank compared to 25% in the first tank at the 5 d HRT. This suggests that nitrification/denitrification occurred effectively in the second tank. Over-all , water hyacinth- gravel system was found to be better in removing NH3 - N than the water hyacinth system without gravel. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Nitrogen removal |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chongrak Polprasert, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Samorn Muttamara, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Verink, Johan, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of France, |
| 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-89-16 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B18015">http://203.159.5.9/ait-thesis/detail.php?q=B18015</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b1006848x |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240409 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | x |
| -- | 0 |
| 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 : 30050003045035 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10065982 |
| LPATRON | LPATRON : 1017815 |
| LCHKIN | LCHKIN : 2005-03-11 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 1 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003045043 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10065994 |
| LPATRON | LPATRON : 1017519 |
| LCHKIN | LCHKIN : 2006-05-30 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 4 |
| -- | TOT RENEW : 1 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120223192 |
| CREATED | CREATED : 2016-11-05 |
| RECORD Id | RECORD # : i12973841 |
| 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 | 10.00 | AIT Thesis no. EV-89-16 | 30050003045035 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 10.00 | AIT Thesis no. EV-89-16 | 30050003045043 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no. EV-89-16 | 30050120223192 | 17/08/2026 | 17/08/2026 | 40-Archives |