AI SearchRecovery of chromium & protein from leather shavings (Record no. 98190)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03864cas|a2200421 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818175645.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170399s1992 th u m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10549638 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-92-25 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Dodangoda, K. D. G. P. |
| 245 10 - TITLE STATEMENT | |
| Title | Recovery of chromium & protein from leather shavings |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1992 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 58, A-16 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-92-25 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1992 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Leather shavings generated, when the thiclrn ess of the pre tanned hides and sl<ins is corrected either manually with a double handled lrnife or by machines in the chrome-tanned leather processing, are toxic wastes, high in chromium content (about 3%). Generation of solid wastes in the tanning industry is estimated to be 1 million tons per year throughout the world. The bigger pieces of trimmings are utilized for the production of artificial l eather. However, most of them are just disposed of in environmentally unsound manner in spite of the growing environmental awareness. Chromium can be extracted from the leather shavings and recycl ed in the tanning process, leaving two kinds of byproducts; protein and protein residue. The former can be used as industrial glue or animal feed, while the latter can be utilized as organic fertilizer for non-edible crops. The experiments utilizing calcium oxide as the all<ali and the leather shavings from the Kwang Hah Lee Tannery was carried out in order to demonstrate the viability of recovery of chromium and protein from leather shavings in small scale tanneries. For this purpose, pilot-scale digeste r was designed based on the bench scale experimental data, and fabricated in the workshop of the AIT Physical Plant. From four pilot-scale experimental runs of which two were made in AIT and the rest performed in the tannery, it was verified that prolonged digestion does not increase the concentration of protein obtained while enhancing the concentration of chromium in t he protein recovered. Further these revealed that the particle size of l eather shavings has a profound effect on digestion of leather shavings. Results of the pilot-scale experiments indicate that the recovery of chromium and protein from leather shavings is technically feasible and viable on small scale applications provided the separation of chromium from protein is controlled carefully. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Tanning |
| General subdivision | Waste disposal |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Sewage |
| General subdivision | Purification |
| -- | Chromium removal |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhuang, Ya-Hui, |
| 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 | Nagarur, N., |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Canadian International De velopment Agency, |
| 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-92-25 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href=" http://203.159.5.9/ait-thesis/detail.php?q=B16844"> http://203.159.5.9/ait-thesis/detail.php?q=B16844</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10549638 |
| b | mnait |
| c | x |
| 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 |
| -- | x |
| -- | 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 : 30050002588183 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10691959 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003046868 |
| CREATED | CREATED : 1994-05-18 |
| RECORD Id | RECORD # : i10691960 |
| LPATRON | LPATRON : 1011386 |
| LCHKIN | LCHKIN : 2001-12-02 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 1 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160056049 |
| CREATED | CREATED : 2016-11-05 |
| RECORD Id | RECORD # : i12974869 |
| 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 Thesis no.EV-92-25 | 30050002588183 | 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 Thesis no.EV-92-25 | 30050003046868 | 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 Thesis no.EV-92-25 | 30050160056049 | 18/08/2026 | 18/08/2026 | 40-Archives |