AI SearchReversing Anaerobic Upflow System (RAUS) : (Record no. 101529)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05308cas|a2200433 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818212613.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 191197s1993 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10570123 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Diss. no. EV-93-1 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Joshi, Deepak Lal |
| 245 10 - TITLE STATEMENT | |
| Title | Reversing Anaerobic Upflow System (RAUS) : |
| Remainder of title | a new approach for industrial wastewater treatment |
| 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 | 198 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Dissertation ; |
| Volume/sequential designation | no. EV-93-1 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Asian Institute of Technology, 1993 |
| 500 ## - GENERAL NOTE | |
| General note | A dissertation submitted in partial fulfillment of the requirement for the degree of Doctor of Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The Reversing Anaerobic Upflow System (RAUS) providing a new low cost anaerobic treatment of industrial wastewater was developed and compared with fixed bed (FB) and upflow anaerobic sludge blanket (UASB) reactors. RAUS consisted of two interconnected vessels functioning alternatively as a reactor and a settler at set time intervals. Two laboratory-scale RAUS reactors with volumes of 10.2 and 26.5 1 respectively were investigated for the treatment of synthetic fiber production wastewater with average COD of 20 g/l. Five 130 1 pilot-scale RAUS reactors were operated at ambient conditions to treat this wastewater for determining the optimum feeding and flow reversion pattern in the system. On-site research was conducted using reactors, with volumes ranging from 130 1 to 3.1 m3 at different industries such as a slaughter-house, pineapple canning , distillery and synthetic fiber production factories . The principle of intermittent feeding and flow reversion in RAUS improved the characteristics of sludge such as specific activity, settleability and thus the sludge enrichment. The feeding principle in RAUS enhanced the gas sludge separation and reduced the sludge washout from the reactor without the need of carrier materials as in the fixed bed reactor and the internal separator as in UASB. The intermittent feeding pattern in RAUS improved the reactor performance in terms of coping with shock loading and temperature drop as well as COD removal and gas production rate. For minimum sludge washout, the connection level between the two sides of RAUS was found to be at about the mid-height of the reactor system. A mathematical model of sludge transport was proposed to explain the reduction of sludge washout in the effluent from RAUS. Synthetic fiber production wastewater exhibited difficulty in treatment due to its very poor nutrient content (COD:N:P = 3000:2.5:1) and very low alkalinity (about 30 mg/l as Caco3 ) and needed close monitoring of pH . Volatile fatty acids (VFA) of more than 1000 mg/ 1 in the effluent indicated process inhibition. The maximum organic loading achieved for this wastewater was about 4.5 kg COD/(m3.d) at a HRT of 6 days. Nevertheless, this wastewater was highly degradable with COD remova l of 80 to 90 percent. The biogas production was 430 Nl/(g ·CODremoved) with methane content of 65 to 73 percent . The optimum feeding pattern for RAUS in treating synthetic fiber production wastewater was found to be 1 hour feeding and 3 hours stop and flow reversion every 4 hours. The source of inoculum was a valuable factor for the start-up of reactors. Sludge well adapted to slaughter house wastewater showed an increase of specific methanogenic activity to 0.48 g cH4-coD/(g VSS . d) from an initial value of 0.09 after 150 days of reactor operation, while the activity of sludge from the reactor inoculated with sludge from anaerobic pond treating mung-bean starch wastewater increased to 0.26 g CH4-coD/(g VSS.d) within the same period. On-site research with different types of wastewater such as from distillery, slaughter-house and synthetic fiber production showed that the COD removal efficiency was independent of the reactor type but the achievable organic loading was different for different reactor type. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Biological treatment |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chongrak Polprasert, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Verink, Johan, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tentscher, Wolfgang, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Athapol Noomhorm, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Seyfried, C. F., |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | GTZ, 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 | Dissertation ; |
| Volume/sequential designation | no. EV-93-1 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B15977">http://203.159.5.9/ait-thesis/detail.php?q=B15977</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10570123 |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240409 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | y |
| -- | 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 : 30050003058301 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i10720534 |
| LPATRON | LPATRON : 1021438 |
| LCHKIN | LCHKIN : 2010-06-09 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003058319 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i10720546 |
| LPATRON | LPATRON : 1021438 |
| LCHKIN | LCHKIN : 2010-01-09 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 7 |
| -- | TOT RENEW : 10 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160004965 |
| CREATED | CREATED : 2016-01-02 |
| RECORD Id | RECORD # : i12876100 |
| 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 | 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 | AIT Diss. no. EV-93-1 | 30050003058301 | 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 | AIT Diss. no. EV-93-1 | 30050003058319 | 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 Diss. no. EV-93-1 | 30050160004965 | 18/08/2026 | 18/08/2026 | 40-Archives |