AI SearchSulfer production via a biological sulfide oxidation process (Record no. 115770)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 05621nas a2200421 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818223404.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 110102s2010 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12087476 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Diss. no.EV-10-02 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Chanya Pokasoowan |
| 245 10 - TITLE STATEMENT | |
| Title | Sulfer production via a biological sulfide oxidation process |
| 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. | 2010 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 1 online resource (113 p.) : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Dissertation ; |
| Volume/sequential designation | no. EV-10-02 |
| 500 ## - GENERAL NOTE | |
| General note | A dissertation submitted in partial fulfillment of requirements for the degree of Doctor of Engineering in Environmental Engineering and Management, School of Environment, Resources, and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Asian Institute of Technology, 2010 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Sulfide-containing wastewater is generated by a number of industries and anaerobic treatment of sulfate in industrial effluents by the use of sulfate-reducing bacteria (SRB). Sulfide cause unpleasant odor, corrosion, damage to aquatic environment, and also process failure of bioreactors. Thus, sulfide should be removed from the effluents before discharged. Conventional physico-chemical treatments such as sulfide precipitation or addition of oxidizing agents can efficiently remove sulfide from wastewater. However, these processes consume large amount of chemicals and energy. The produced sludge is toxic and need a safe disposal. Recently, the biological sulfide oxidation by the use of sulfide oxidizing bacteria (SOB) becomes a better alternative with the advantages of lower chemical and energy requirement, less sludge production, and elemental sulfur recovery. Under limited dissolved oxygen (DO) condition, sulfide and other reduced sulfur compounds are partially oxidized to elemental sulfur which is easily removed from the waste streams. This research focused on the feasibility of sulfide removal and sulfur recovery from industrial wastewater by biological sulfide oxidation on airlift reactor. The lab-scale airlift reactor was operated under ambient condition to study the effect of sulfide loading rate and optimize the sulfur recovery. Moreover, the morphology of SOB is characterized by electron microscope and the properties of biologically produced sulfur were also analyzed. Synthetic sulfide wastewater was used as a feed and sodium bicarbonate was prepared as a carbon source for chemolithotrophic SOB. The influent flow rate was kept constant. The sulfide loading rate (SLR) was gradually stepwise increased from 0.80 kgHS-/m3-day to 4.00 kgHS-/m3-day. It was observed that sulfur was mainly produced instead of sulfate at SLR of 1.22 kgHS-/m3-day. The produced sulfur was further increased until it reached its maximum of 2.95 kgHS-/m3-day at SLR of 2.97 kgHS-/m3-day. At high SLR (> 2.2 kgHS-/m3-day), DO and pH were controlled between of 0.2-1.0 mg/l and 7.2-7.8, respectively. At SLR of 3.05 kgHS-/m3-day, the sulfur production dropped to less than 10% and sulfate became the main product with 60-70% of influent sulfide conversion. It was found that sulfur production had tendency to increase again at SLR of 3.33 kgHS-/m3-day. The accumulation of produced sulfur in the reactor reduced the contact of aqueous sulfide and the bacterial cells, thus, reducing the conversion of sulfide to sulfur. More recovered sulfur was produced at high sulfide loading rate due to the change of metabolic pathway of SOB which prevented the toxicity of sulfide in the culture. The airlift reactor successfully removed sulfide over 90% of the influent sulfide during the steady state operation. The produced elemental sulfur was analyzed by X-Ray diffraction (XRD) analyzer. The XRD pattern showed the elemental sulfur (S8) with orthorhombic structure. All peaks of the sample resemble S8 and most peaks matched with the commercial sulfur and analytical-grade sulfur. The biologically produced sulfur also contained organic compounds which were confirmed by the result from elemental analyzer. The percentage of carbon, nitrogen, and hydrogen are 4.44%, 0.79% and 0.48% respectively. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sulphides |
| General subdivision | Oxidation |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Annachhatre, Ajit P., |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chongrak Polprasert, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Vilas Nitivattananon, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | AIT scholarship, |
| 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-10-02 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B00558">http://203.159.5.9/ait-thesis/detail.php?q=B00558</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12087476 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240329 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 110102 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 962 ## - | |
| -- | 000:001:PDF:b1208747:000246:0:0:0:0:0:0 |
| -- | Abstract-AIT Diss. no.EV-10-02 |
| -- | n |
| 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 : 30050120553838 |
| CREATED | CREATED : 2011-02-01 |
| RECORD Id | RECORD # : i12651758 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120553812 |
| CREATED | CREATED : 2011-02-01 |
| RECORD Id | RECORD # : i1265176x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160004114 |
| CREATED | CREATED : 2016-09-02 |
| RECORD Id | RECORD # : i12879150 |
| 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 Diss. no.EV-10-02 | 30050120553838 | 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 | 50.00 | AIT Diss. no.EV-10-02 | 30050120553812 | 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-10-02 | 30050160004114 | 18/08/2026 | 18/08/2026 | 40-Archives |