AI SearchAmmonia pollution in groundwater of Hanoi city and a case study for removal of ammonia by the zeolite adsorption process (Record no. 4301)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04284nam a2200409 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162217.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11454842 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-95-19 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Le Giao |
| 245 10 - TITLE STATEMENT | |
| Title | Ammonia pollution in groundwater of Hanoi city and a case study for removal of ammonia by the zeolite adsorption process |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1995 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 119 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-95-19 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Sc.) - Asian Institute of Technology, 1995 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Presence of ammonia nitrogen in drinking water can cause accelerated corrosion of metals and materials used for water supply, affect chlorine disinfection efficiency and particularly it may cause a methaemoglobinaemia in infants through the oxidation to nitrate. In Hanoi city, approximately 218,000m3 of water, occupying 41% of the total city production, has been produced from ammonia polluted sources. The sources for nitrogen that may enter to groundwater table of Hanoi city could be wastewater, fertilizer, disposal of waste, and rainfall. The fertilizer source was the most significant generator of nitrogen with total amount of 73.4%, in which organic fertilizer is 95.8%. The results obtained from the study showed that the amount of nitrogen entered to the groundwater of whole city was about 1.25% of the total generated, in which about 0.97% was in the south of the city. Another potential source of ammonia in groundwater is peat land layers within the soil structure of Hanoi. Although the amount and characteristics of nitrogen generated from this source is unknown, a corelation between ammonia concentration in groundwater and peat land layers within soil structure was observed. Removal of ammonia from filtered effluent of Phap Van water plant was investigated, in which the A-4 synthetic zeolite of 8-12mesh was used for ion exchange media. An average ammonia removal of 87.4% was obtained from single column operations at a liquid flow rate of 5.1 L/hour. At a liquid flow rate of 7 .2 L/hour, an average ammonia removal of 81 .3% was observed. However, more than 4 mg/L of effluent ammonia concentration was observed when operating the system at 9.9 L/hour. An average ammonia removal of 91.9% was obtained from the mode of two columns in series with liquid flow rate of 7.2 L/hour, in which ammonia removed from the first column was 78% of the total. By using a solution of 2% NaCl with pH of 10.95 to extract adsorbed ammonia from loaded zeolite bed, approximately 96% of original exchange capacity of zeolite was regenerated at liquid flow rate of 7 .2 L/hour and a regeneration period of 1 hour. The cost estimations among the three available processes shown that zeolite adsorption process with a contact time of 0.73 minute is a most economic method for ammonia removal at Phap Van water treatment plant. |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Adsorption |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Umita, Teruyuki, |
| 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 | Sehested Hansen, Ian, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Finnish International Development Agency(FINNIDA), |
| 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-95-19 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B15125">http://203.159.5.9/ait-thesis/detail.php?q=B15125</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11454842 |
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| a | 240404 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 960123 |
| 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 : 30050003144986 |
| CREATED | CREATED : 1994-08-26 |
| RECORD Id | RECORD # : i11712144 |
| LPATRON | LPATRON : 1019911 |
| LCHKIN | LCHKIN : 2008-02-17 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003144721 |
| CREATED | CREATED : 1994-08-26 |
| RECORD Id | RECORD # : i11712156 |
| LPATRON | LPATRON : 1016166 |
| LCHKIN | LCHKIN : 2003-01-04 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160079264 |
| CREATED | CREATED : 2016-05-23 |
| RECORD Id | RECORD # : i12985296 |
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT Thesis no. EV-95-19 | 30050003144986 | 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 | AIT Thesis no. EV-95-19 | 30050003144721 | 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-95-19 | 30050160079264 | 17/08/2026 | 17/08/2026 | 40-Archives |