AI SearchAnaerobic co-digestion of cassava pulp and pig manure (Record no. 4344)
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| fixed length control field | 05817nas a2200433 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817162224.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180411s2017 th u m rtt 000 a eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12200281 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Diss. no.EV-17-01 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Naraporn Glanpracha |
| 245 10 - TITLE STATEMENT | |
| Title | Anaerobic co-digestion of cassava pulp and pig manure |
| 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. | 2017 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 148 p. : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Dissertation ; |
| Volume/sequential designation | no. EV-17-01 |
| 500 ## - GENERAL NOTE | |
| General note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of PhilosophyinEnvironmental Engineering and Management |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Asian Institute of Technology, 2017 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Cassava pulp (CP), a solid waste rich in organic carbon, is generated during the cassava starch production process. A small portion of CP is sold as a low-cost animal feed material the remaining amount is often left untreated. Biodegradation of CP under uncontrolled anaerobic conditions in a disposal area result in extensive environmental pollution affecting air, water, and soil quality. Anaerobic digestion (AD) is an alternative waste treatmentoption for CP due to it contains high starch and moisture content. However, low of nitrogen content, as well as, the presence of residual cyanide in CP limit its utility in AD process. Accordingly, the overall research aim was to enhance anaerobic co-digestion performance of CP with nitrogen rich co-substrate (pig manure (PM)). The performance of anaerobic co-digestion (AcoD) and cyanide content during the operation at various organic loading rates (OLRs) were investigated. Furthermore, the most suitable mathematical model was selected for estimating substrate treatment efficiency in term of effluent volatile solid (VS) concentration in AcoD of CP and PM.In this study, the anaerobic co-digestion experiment was carried out at ambient temperature (31±1oC)and in 10 L single stage semi-continuously stirred tank reactor with working volume of 7 L.The reactorwas operated in a semi-continuous mode with the mixed feedstock of CP and PM in the proportion of 80:20 (VS basis), corresponding to a C/N ratio of 35.Digester startup was accomplished in 60 days with the loading of 0.5{u2013}1 kgVS/m3d. Subsequently, the loading to digester was increased step-wise from 2 to 9 kgVS/m3d.During reactor operation under various OLRs, the reactor performance and cyanide concentration were evaluated.Digester performance was stable at OLR between 2 and 6 kgVS/m3d with an average VS removal and a methane yield of 82% and 0.38 m3/kgVSadded, respectively. The digester exhibited instability when OLR was increased in the range 7-9 m3/kgVSadded. During these loadings, the average biogas yield and methane yield decreased from 0.59 to 0.24 and 0.32 to 0.13 m3/kgVSadded, respectively since solubilization of particulate matter did not take place efficiently beyond loading of 7 kgVS/m3d. The soluble chemical oxygen demand (SCOD) production rate gradually increasedwith increasing OLR up to 7 kgVS/m3d and reached a steady value even OLR increased from 7 to 9 kgVS/m3d. The digester became unstable at OLR of 9 m3/kgVSaddedsince VFA concentration increased to over 3000 mg/L which was in the inhibition level leading to system failure.The average total cyanide content in fresh CP was 9.8 mg/(kg wet basis) which existed in the form of cyanohydrins (about 80%) and free hydrocyanic acid (HCN) (about 15 %). In anaerobic co-digestion system, the cyanide content in digester mainly in the form of HCN. The cyanide concentration in the digester increased and reached the maximum of about 6.5 mg/L as the OLR was increased from 2 to 5 kgVS/m3.d from day 70-110 of reactor operation. From the day 110 onwards,cyanideconcentrationdeclinedcontinuously tobelow 1 mg/L even OLR increased to9kgVS/m3.d indicated that sludge in digester was acclimatized and was capable of degrading cyanide in the system.Cyanide degradation in AD followed first-order kineticswiththe rate constant of0.0939 d-1. Thus, it can be concluded that CP can be successfully digested anaerobically with PM as co-substrate without any inhibitory effect of cyanide present in the CP. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Cassava machinery |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Digestion |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thammarat Koottatep, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Anal, Anil Kumar, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Rajamangala University of TechnologyThanyaburi(RMUTT), Thailand, |
| 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-17-01 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B00588">http://203.159.5.9/ait-thesis/detail.php?q=B00588</a> |
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| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 180411 |
| First date, FD (RLIN) | m |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 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 : 30050120511414 |
| CREATED | CREATED : 2018-11-04 |
| RECORD Id | RECORD # : i1312450x |
| LPATRON | LPATRON : 1030358 |
| LCHKIN | LCHKIN : 2020-11-09 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120511380 |
| CREATED | CREATED : 2018-11-04 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120398317 |
| CREATED | CREATED : 2018-07-17 |
| RECORD Id | RECORD # : i13134814 |
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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 | 17/08/2026 | 50.00 | AIT Diss. no.EV-17-01 | 30050120511414 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | 50.00 | AIT Diss. no.EV-17-01 | 30050120511380 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Diss. no.EV-17-01 | 30050120398317 | 17/08/2026 | 17/08/2026 | 40-Archives |