AI SearchFluoride removal from groundwater using bio-adsorbents (Record no. 45952)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05599nas a2200505 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818114136.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 190403s2016 u m rtt 000 a eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12304232 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.ET-SUD-16-01 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Gebrewold, Berhane Desta |
| 245 10 - TITLE STATEMENT | |
| Title | Fluoride removal from groundwater using bio-adsorbents |
| 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. | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 77 leaves : |
| Other physical details | ill. + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ET-SUD-16-01 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management with specialization in Environmental Technology for Sustainable Development jointly offered by the Asian Institute of Technology, Thailand and UNESCO{u2013}IHE, The Netherlands |
| 500 ## - GENERAL NOTE | |
| General note | AIT-UNESCO-IHE |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 2016 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In this study, fluoride uptake potential of rice husk carbon and corn cob carbon was investigated through batch and column experiments. Screening analysis was done using thermally activated different bio adsorbents (sugarcane bagasse, corn cob, rice husk, potato peel, papaya seed, groundnut shell and coconut husk). Rice husk and corn cob were selected and further studies were carried on in order to ascertain their adsorption capacities. The selected bio adsorbents were activated thermally and chemically to enhance the surface of the adsorbents for fluoride uptake. Central composite design in Response surface methodology was used in order to generate a combination of different independent variables (pH, initial fluoride concentration, contact time and adsorbent dose) and the results were analyzed using analysis of variance (ANOVA). Fluoride uptake using rice husk carbon showed maximum adsorption efficiency of 91% and capacity of 7.9 mg/gat optimum condition of pH 4, initial fluoride concentration of 18 mg/l, contact time 3 hours and adsorbent dose of 2 g/. whereas fluoride uptake using corn cob carbon resulted maximum adsorption efficiency of 89% and uptake capacity of 5.83 mg/g at optimum condition of pH 6, initial fluoride concentration of 13 mg/l, contact time of 5 hours and adsorbent dose of 2 g/l. Fluoride concentration in treated water was below standard limit in both cases. Equilibrium is attained within 3 hours for rice husk carbon and 5hoursusing corn cob carbon.pHpzc for rice husk carbon and corn cob carbon was obtained to be 6.7 and 2.3, respectively. The adsorption data fitted Langmuir adsorption model describing monolayer adsorption of fluoride on to rice husk carbon and corn cob carbon. Adsorption kinetic model study indicated that fluoride uptake followed pseudo{u2013}second order kinetic model with adsorption rate of 0.384 and 0.366 mg/g.min for rice husk carbon and corn cob carbon, respectively. Intraparticle diffusion was examined in order to determine rate-limiting step and was found that intraparticle diffusion is not a rate-limiting step, rather fluoride adsorption on to rice husk carbon and corn cob carbon was governed by both intraparticle diffusion and surface diffusion / surface adsorption. Column experiments were carried out using three columns packed with 100% rice husk carbon, 100% corn cob carbon and 50% rice husk carbon + 50% corn cob carbon. The breakthrough adsorption capacities were found to be 7.88 mg/g, 5.03 mg/g and 5.22 mg/g, respectively. Breakthrough was attained in 6thday for 100% rice husk carbon and 5th day for the remaining two columns. The results were analyzed using Thomas model, which yields adsorption capacities to be 11 mg/g, 8.1 mg/g and 9.4 mg/g, respectively for the three columns. In general, a satisfactory result was obtained for fluoride uptake using rice husk carbon and corn cob carbon. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water |
| General subdivision | Fluoridation |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water |
| General subdivision | Softening |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water |
| General subdivision | Purification |
| -- | Adsorption. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rene, Eldon R., |
| Relator term | Co-Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lens, Piet N. L., |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thammarat Koottatep, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nguyen, Thi Kim Oanh, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pimluck Kijjanapanich, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Netherlands Fellowships Programmes (NFP), |
| Relator term | Scholarship donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | UNESCO {u2013} IHE/Asian Institute of Technology, |
| 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. ET-SUD-16-01 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B02384">http://203.159.5.9/ait-thesis/detail.php?q=B02384</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12304232 |
| b | mnait |
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| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240423 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 190403 |
| First date, FD (RLIN) | m |
| -- | a |
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| 962 ## - | |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 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 : 30050120546311 |
| CREATED | CREATED : 2019-03-04 |
| RECORD Id | RECORD # : i1317101x |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120546287 |
| CREATED | CREATED : 2019-03-04 |
| RECORD Id | RECORD # : i13171021 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120877377 |
| CREATED | CREATED : 2019-06-24 |
| RECORD Id | RECORD # : i13196856 |
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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.ET-SUD-16-01 | 30050120546311 | 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.ET-SUD-16-01 | 30050120546287 | 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.ET-SUD-16-01 | 30050120877377 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |