AI SearchImpairment caused by organic substances in water treatment processes (Record no. 58372)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 03372cas|a2200385 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818134453.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170399s1993 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10348955 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-93-08 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Chaudhary, Durgananda Singh |
| 245 10 - TITLE STATEMENT | |
| Title | Impairment caused by organic substances in water treatment processes |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1993 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 106 leaves + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-93-08 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Natural organic matters are ubiquitous in aqueous environment. Humic substances are naturally occuring organic macromolecules formed by a complex series of biochemical reactions among carbohydrates, proteins, lignin, and tannin of the decaying animals and vegetable matters. Humic substances are of great concern in Water treatment technology because of health, aesthetics and associated operational problems. The formation of carcinogenic trihalomethanes and other toxic halogenated molecules from reactions between organic matter and chlorine, is one of the main problems caused by organic matter. The present study has aimed to assess the impairment caused by humic and tannic acids in the conventional water treatment process of "Coagulation-Flocculation", and to evaluate the removal efficiency of these organics by Alum and Cat-FlocT2, a cationic polyelectrolyte as coagulants. Alum was found to be very effective in both organics and turbidity removal, whereas . Cat-FlocT2 was not effective for either. But the Cat-FlocT2 with alum of 20 mg/L dose, was found to be effective in very narrow pH range of about 4.75-5. The pH of the suspension was observed to be the most crucial factor that determine the coagulant dose and the removal of organics and turbidity. The optimum pH for organics and turbidity removal was found to be around 5. For both Alum and Cat-FlocT2 with alum, the optimum conditions for organics removal nearly coincide with that for turbidity removal. Humic acid was found to have more affinity towards adsorption on kaoline clay in acidic condition than tannic acid. Whereas tannic acid was observed to have more tendency to form complexes in alkaline conditions than humic acid. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water |
| General subdivision | Purification |
| -- | Coagulation |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Visvanathan, C., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tanaka, Shuzo, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Schroder, Hans, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Austria, |
| 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-93-08 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B16209">http://203.159.5.9/ait-thesis/detail.php?q=B16209</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10348955 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240402 |
| 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 | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120806228 |
| CREATED | CREATED : 2014-03-28 |
| RECORD Id | RECORD # : i12781952 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160055900 |
| CREATED | CREATED : 2016-11-05 |
| RECORD Id | RECORD # : i1297500x |
| 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 | 18/08/2026 | 50.00 | AIT Thesis no.EV-93-08 | 30050120806228 | 18/08/2026 | 3 | 18/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-93-08 | 30050160055900 | 18/08/2026 | 18/08/2026 | 40-Archives |