AI SearchBioavailability of sludge-borne heavy metal as influenced by moisture regiemes (Record no. 12106)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04103nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817171417.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 011298s1998 th r 0000|0 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1173405x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. EV-98-20 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ahmmed, Sohel |
| 245 10 - TITLE STATEMENT | |
| Title | Bioavailability of sludge-borne heavy metal as influenced by moisture regiemes |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1998 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 104 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-98-20 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Sewage sludge usually contains significant heavy metals that may limit its land application. Heavy metals in sewage sludge have been shown to be less plant available and low concentration prior to the incubation process. In the present research DTP A test was conducted for metal bioavailability whereas sequential step extraction was employed to investigate metal speciation (into exchangeable, bound to carbonate, to Mn and Fe oxides, to organic matter and in residue phase) and the effect of high moisture (flooded sludge) as well as low moisture (wet and dry) content on metal speciation in incubation of Huay Kwang sewage sludge for heavy metal. The flooded sludge under specified period of time (10, 30 and 60 days) generally reduces bioavailability of metal except Mn, which was quite constant (20% of total heavy metal). The exchangeable and carbonated fractions (plant available) are also reduced and therefore the potential hazard of releasing metals from sludge through adsorption and complexation of the metals onto inorganic components to different extents for the different metals. Zn and Pb had distinct affinity to oxides whereas for Mn and Cd, dominant fractions were exchangeable or carbonated. Cu, Ni and Cr were associated mainly with organic or residual form (both of the forms are sparingly available). The present of fecal coliform (2 - 5 x 104 MPN/g dry wt.) indiGates the safe use in agricultural land but it should be monitored regularly. During the period of wet and dry condition (9 - 12% moisture content) the dry sludge releases more plant available metal due to stimulation of microor~anism and longer residual period. The bioavailability of Pb was found highest 54% in 30 C. In contrast the plant available fractions (exchangeable and carbonated) were found less in comparison with original one (except Zn and Cu), indicating safe use in agricultural purpose. Mn was decreased significantly in this condition. The residual fraction (mainly sulfides) was observed quite high amount for almost all metals from original or flooded sludge, indicating stable metal mineral complex and less threatening to plant. |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Heavy metals |
| General subdivision | Bioavailability |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Preeda Pakpian, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Eckhardt, Ing. Heinz, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Apisit Eiumnoh, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | The Royal Danish 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-98-20 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B12740">http://203.159.5.9/ait-thesis/detail.php?q=B12740</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b1173405x |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240407 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 981201 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | y |
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| 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 : 30050120714315 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i12110358 |
| LPATRON | LPATRON : 1012438 |
| LCHKIN | LCHKIN : 2000-05-02 |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120714307 |
| CREATED | CREATED : 1997-04-07 |
| RECORD Id | RECORD # : i1211036x |
| LPATRON | LPATRON : 1018471 |
| LCHKIN | LCHKIN : 2006-07-12 |
| RENEWALS | # RENEWALS : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160077912 |
| CREATED | CREATED : 2016-05-23 |
| RECORD Id | RECORD # : i12987773 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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| 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 | 17/08/2026 | AIT Thesis no. EV-98-20 | 30050120714315 | 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 | AIT Thesis no. EV-98-20 | 30050120714307 | 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 Thesis no. EV-98-20 | 30050160077912 | 17/08/2026 | 17/08/2026 | 40-Archives |