Leather buffing dust in brick production: Solid waste management in tanneries
In leather processing, the generation of buffing dust is an indispensable solid waste. It contains chromium, synthetic oil, dyestuffs, and tanning agents. Management of buffing dust has become a great challenge for the leather industry. This study aims to use buffing dust in brick production and exa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522007574 |
| _version_ | 1828156834835333120 |
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| author | Md. Shohag Milu Md. Abul Hashem Sofia Payel Md. Anik Hasan |
| author_facet | Md. Shohag Milu Md. Abul Hashem Sofia Payel Md. Anik Hasan |
| author_sort | Md. Shohag Milu |
| collection | DOAJ |
| description | In leather processing, the generation of buffing dust is an indispensable solid waste. It contains chromium, synthetic oil, dyestuffs, and tanning agents. Management of buffing dust has become a great challenge for the leather industry. This study aims to use buffing dust in brick production and examine the effects of incorporating buffing dust into the physicomechanical, environmental, and morphological properties of produced bricks. In this experiment, bricks were produced conventionally by mixing buffing dust in different ratios ranging from 0% to 12% (wt.) with the clay, and the bricks were fired in a kiln at 1000 °C. Results indicate that 4% buffing dust incorporated bricks showed the maximum compressive strength (12.02 MPa), as well as other engineering properties - water absorption, weight loss on ignition, area shrinkage, bulk density, efflorescence test results - were also in the acceptable range according to ASTM and Bangladesh Standards. Scanning Electron Microscope images imply that buffing dust played an important role in the structure of fired bricks. The NEN 7345 and TCLP leaching tests of fired bricks showed that the leached amount of heavy metals was insignificant and far below the permissible limit. Thus using buffing dust incorporated bricks is quite feasible and will reduce environmental pollution as well. |
| first_indexed | 2024-04-11T23:17:58Z |
| format | Article |
| id | doaj.art-c940d05930bb42d49d59203fbd817289 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-11T23:17:58Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-c940d05930bb42d49d59203fbd8172892022-12-22T03:57:32ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01625Leather buffing dust in brick production: Solid waste management in tanneriesMd. Shohag Milu0Md. Abul Hashem1Sofia Payel2Md. Anik Hasan3Department of Leather Engineering, Khulna University of Engineering & Technology, Khulna- 9203, BangladeshCorresponding author.; Department of Leather Engineering, Khulna University of Engineering & Technology, Khulna- 9203, BangladeshDepartment of Leather Engineering, Khulna University of Engineering & Technology, Khulna- 9203, BangladeshDepartment of Leather Engineering, Khulna University of Engineering & Technology, Khulna- 9203, BangladeshIn leather processing, the generation of buffing dust is an indispensable solid waste. It contains chromium, synthetic oil, dyestuffs, and tanning agents. Management of buffing dust has become a great challenge for the leather industry. This study aims to use buffing dust in brick production and examine the effects of incorporating buffing dust into the physicomechanical, environmental, and morphological properties of produced bricks. In this experiment, bricks were produced conventionally by mixing buffing dust in different ratios ranging from 0% to 12% (wt.) with the clay, and the bricks were fired in a kiln at 1000 °C. Results indicate that 4% buffing dust incorporated bricks showed the maximum compressive strength (12.02 MPa), as well as other engineering properties - water absorption, weight loss on ignition, area shrinkage, bulk density, efflorescence test results - were also in the acceptable range according to ASTM and Bangladesh Standards. Scanning Electron Microscope images imply that buffing dust played an important role in the structure of fired bricks. The NEN 7345 and TCLP leaching tests of fired bricks showed that the leached amount of heavy metals was insignificant and far below the permissible limit. Thus using buffing dust incorporated bricks is quite feasible and will reduce environmental pollution as well.http://www.sciencedirect.com/science/article/pii/S2214509522007574TanningSolid wasteSustainabilityToxic elementsLeaching |
| spellingShingle | Md. Shohag Milu Md. Abul Hashem Sofia Payel Md. Anik Hasan Leather buffing dust in brick production: Solid waste management in tanneries Case Studies in Construction Materials Tanning Solid waste Sustainability Toxic elements Leaching |
| title | Leather buffing dust in brick production: Solid waste management in tanneries |
| title_full | Leather buffing dust in brick production: Solid waste management in tanneries |
| title_fullStr | Leather buffing dust in brick production: Solid waste management in tanneries |
| title_full_unstemmed | Leather buffing dust in brick production: Solid waste management in tanneries |
| title_short | Leather buffing dust in brick production: Solid waste management in tanneries |
| title_sort | leather buffing dust in brick production solid waste management in tanneries |
| topic | Tanning Solid waste Sustainability Toxic elements Leaching |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522007574 |
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