AI SearchSolving "sludge bulking" problem in activated sludge process (Record no. 109445)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03221nas a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818214646.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 301098s1983 th r 000| 0eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10618417 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-83-17 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pinthita Mungkarndee |
| 245 10 - TITLE STATEMENT | |
| Title | Solving "sludge bulking" problem in activated sludge 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. | 1983 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 66 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-83-17 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1983 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Sludge bulking often occurs in the completely-mixed activated sludge processes treating carbohydrate waste. Hydrogen peroxide was selected as the chemical for sludge bulking control in this study. The effect of hy- drogen peroxide was studied first in the batch study. It was evident that the optimum effective doses of hydrogen peroxide were 40 and 60 g H202/kg MLSS·d at the SVI of 150-300 mt/g and 300-450 mt/g respectively. And it was also observed that after shock loading from 0.3 to 0.5 kg BODS/kg MLSS·d in the batch system SVI increases from 180-200 to 300-450 mt/g. The second doses of hydrogen peroxide of 60 and 70 g H202/kg MLSS·d could reduce the SVI to 150 mt/g in such unit within 3 and 2 days, respectively. While the second doses of hydrogen peroxide of 40 and 50 g H202/kg MLSS·d were needed to overcome sludge bulking within 4 days. For the continuous completely-mixed system study, the organic loading of 0.4-0.5 kg BODS/kg MLSS·d was found to be optimum with no sludge bulking occurred. In this system the effective dose was found to be 60 g H202/kg MLSS·d in both units operated under different SVI values (800-1,100 mi/g and 300-50 mg/i). The frequency of hydrogen peroxide feeding and contact time exhibit the similar effect in both units. The most effective of hydro- gen peroxide feeding and appropriate contact time were found to be single dose and more than 5 hours, respectively. |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water quality management |
| General subdivision | Nepal |
| -- | Phewa Lake |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Samorn Muttamara, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nguyen, Cong Thanh, |
| Relator term | Co-Advisor |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pakit Kiravanich, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Japanese Government, |
| 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-83-17 |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10618417 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 230608 |
| 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 | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120655278 |
| CREATED | CREATED : 2014-05-02 |
| RECORD Id | RECORD # : i12757652 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120224851 |
| CREATED | CREATED : 2016-04-05 |
| RECORD Id | RECORD # : i12969898 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121074941 |
| CREATED | CREATED : 2023-03-20 |
| RECORD Id | RECORD # : i13439042 |
| 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-83-17 | 30050120655278 | 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-83-17 | 30050120224851 | 18/08/2026 | 18/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.EV-83-17 | 30050121074941 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication |