AI SearchApplication of horizontal flow prefiltration and slow sand filtration for small community water supply (Record no. 6649)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03708nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162909.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 301098s1984 th r 0000|00eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10088027 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-84-11 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Vichian Udomratanasilpa |
| 245 10 - TITLE STATEMENT | |
| Title | Application of horizontal flow prefiltration and slow sand filtration for small community water supply |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1984 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 81 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-84-11 |
| 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, 1984 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | An attempt was made on a pilot scale to fi nd a simple mod el for a horizontal flow roughing prefilter used with slow sand filter a s the water treatment system for a s mall community. Three different lengths of horizontal p refilter PVC pipe model of 250 mm in diameter, i.e. 2. 0 m, 3.0 m, 4.0 m, were used in this study at the filtration rate of 1.25 m /m - h . Crushed stone , with effective size of 2-20 mm, and coconut husk fiber were used as roughing filter media in the horizontal prefilters. Slow sand filters with the filtration r ate of 0. 15 m /m-h we reused t o polish water from the horizontal prefilters. It was found that the performance of horizontal prefilters using single crushed stones was less effective than those using dual media , coconut fiber 80 cm in .length followed by crushed stones. The horizontal prefilter of 4.0 m length performs best in filtering the raw water in this study The fraction of coconut fiber in horizontal prefilter can perform effectively tor a .bout one month. Turbidity and suspended solids removal efficiencies in horizontal prefilter, when single medium was used, were a bout 28-68 % and 45-95 % whereas in the horizontal pref1lter with dual media turbidity and suspended solids removal efficiencies were about 30-68 % and 54-98 %. The reduction of fil54qgili5y indices of raw water when passing through the horizontal prefilters was about 85 % The slow sand filters can treat the water to meet the WHO standard drinking Water in terms of turbidity and completely removed suspended solids on occasions. The overall removal efficiencies of this system were about 71 -94 % and 81 -99. 6 % for turbidity and suspended solids respectively. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Filters and filtration |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nguyen, Cong Thanh, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Vigneswaran, Saravanamuthu, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Samorn Muttamara, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Carl Duisburg Gesellschaft, e.v. (COG) Government of the Federal Republic of Germany, |
| 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-84-11 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B20588">http://203.159.5.9/ait-thesis/detail.php?q=B20588</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10088027 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240509 |
| 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 : 30050003042206 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10093679 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003042198 |
| CREATED | CREATED : 1994-05-16 |
| RECORD Id | RECORD # : i10093680 |
| LPATRON | LPATRON : 1016809 |
| LCHKIN | LCHKIN : 2004-02-27 |
| RENEWALS | # RENEWALS : 0 |
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| -- | TOT CHKOUT : 6 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120224638 |
| CREATED | CREATED : 2016-04-05 |
| RECORD Id | RECORD # : i12970293 |
| 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 | 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-84-11 | 30050003042206 | 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-84-11 | 30050003042198 | 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-84-11 | 30050120224638 | 17/08/2026 | 17/08/2026 | 40-Archives |