AI SearchEffects of organic loading rates and carbon/nitrogen ration on the performance of upflow thermophilic septic tank for treating toilet wastewater (Record no. 35260)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05708nas a2200469 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818095305.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 200828 2019h u th | tmt a eng |eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12315679 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-19-17 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pharatthakorn Pukwapee |
| 245 10 - TITLE STATEMENT | |
| Title | Effects of organic loading rates and carbon/nitrogen ration on the performance of upflow thermophilic septic tank for treating toilet wastewater |
| 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. | 2019 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 91 leaves : |
| Other physical details | ill. (some col.) + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-19-017 |
| 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 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 2019 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Goals of this study were to study effects of organic loading rates (OLRs) and carbon/nitrogen ratio (C/N) on the performance of up flow thermophilic septic tank (UTST) for treating toilet wastewater under intermittent feeding pattern, 24 hours of hydraulic retention time and thermophilic condition (50°C) which three laboratory-scale UTST reactors were operated for two months. This study was divided into two phases. Phase I was the study of the performance of three laboratory-scale UTST reactors under 8 kg COD/(m3.d), 4 kg COD/(m3.d) and 2 kg COD/(m3.d) OLR, and operating period of phase I was one month. Fresh excreta collected from Talad Thai (Thai market) was mixed with tap water to dilute the COD concentration to be in the range 2,000 - 8,000 mg/L during phase 1. Performances of each OLR revealed that at 8 kg COD/(m3.d), biogas production was 2.28 ± 2.39 Lid, methane production was 1.56 ± 1.81 Lid which both biogas and methane yield were the highest. Acetic acid and propionic acid were the found mainly and less amount of butyric acid at this OLR which amount of acetic acid, propionic acid and butyric acid were 191.39, 198.04 and 36.12 mg/L, respectively. At 4 kg COD/(m3.d), TCOD and TKN removal efficiencies were the highest which were 74.64 ± 3.20% and 36.71 ± 12.13%, respectively. Butyric acid could not be detected, only acetic acid and propionic acid could be found. The amounts of acetic acid and propionic acid were 142.0 and 83.12 mg/L, respectively. At 2 kg COD/(m3.d), removal efficiency of TCOD and TKN were nearly the same as at 4 kg COD/(m3.d) which were 73.29 ± 3.58% and 36.15 ± 9.39%, respectively. Individual VFAs of2 kg COD/(m3.d) were not much different at 4 kg COD/(m3.d), butyric acid could not be detected. The amounts of acetic acid and propionic acid of this loading rate were 120.78 and 47.07 mg/L, respectively. Phase II of this study was operated for one month, 4 kg COD/(m3.d) was maintained to all reactors under the same conditions as phase 1. Fresh excreta was mixed with tap water and molasses. Moreover, NH4CI was added to maintain TCOD/TKN ratios to be 2511, 1011 and 511. Tendency of TCOD/TKN, TCOD, TKN, ammonia nitrogen (NH3-N) removal efficiencies along with yields and production of biogas and methane were found to be decreasing when TCOD/TKN ratio was decreasing. At 2511 of TCOD/TKN, TCOD,TKN and ammonia nitrogen (NH3-N) removal efficiencies were 74.41 ± 7.09 %,25.41 ± 3.09 %, 23.41 ± 10.70%, respectively and production ofbiogas and methane were 11.67 ± 5.97 and 6.38 ± 3.43 Lid. Yields ofbiogas and methane were 0.138L biogas/g TCODinfluentand 0.076 L CH4/g TCODinfluent. At 1011 of TCOD/TKN, TCOD, TKN and ammonia nitrogen (NH3- N) removal efficiencies were 67.38 ± 6.30%, 18.69 ± 5.04% and 14.05 ± 8.96%, respectively, and production of biogas and methane were 5.17 ± 0.66 and 3.35 ± 0.62 Lid. Yields of biogas and methane were 0.066 L biogas/g TCODinfluent and 0.043 L CH4/g TCODinfluent. At 511 of TCOD/TKN, TCOD, TKN and ammonia nitrogen (NH3-N) removal efficiencies were 53.48 ± 17.88%, 15.04 ± 4.09% and 9.87 ± 9.41 %, respectively and production of biogas and methane were 2.45 ± 0.85 and 1.55 ± 0.61 Lid. Yields of biogas and methane were 0.030 L biogas/g TCODinfluent and 0.019 L CH4/g TCODinfluent. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Septic tanks |
| General subdivision | Environmental aspects |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Anaerobic treatment |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thammarat Koottatep, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chongrak Polprasert, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Xue, Wenchao, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tatchai Pussayanavin, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Thai Government Fellowship, |
| 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-19-17 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B06409">http://203.159.5.9/ait-thesis/detail.php?q=B06409</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12315679 |
| b | mnait |
| c | m |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 241029 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 200828 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | m |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120877104 |
| CREATED | CREATED : 2019-06-24 |
| RECORD Id | RECORD # : i13197666 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : - |
| CREATED | CREATED : 2019-06-24 |
| RECORD Id | RECORD # : i13197678 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120980262 |
| CREATED | CREATED : 2020-08-28 |
| RECORD Id | RECORD # : i13291075 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120980254 |
| CREATED | CREATED : 2020-08-28 |
| RECORD Id | RECORD # : i13291099 |
| 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 | Cost, normal purchase price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-19-17 | 30050120877104 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-19-17 | 18/08/2026 | 18/08/2026 | 67-Electronic Resource | |||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-19-17 | 30050120980262 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | 50.00 | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no.EV-19-17 | 30050120980254 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | 50.00 |