Zakaria, Hanis (2019) Analysis of rbd palm olein abrasive blasting as new metal surface cleaning method. Doctoral thesis, Universiti Tun Hussein Onn Malaysia.
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Abstract
Abrasive blasting is a process done for surface cleaning which has two methods which are dry or wet process. The dry process which uses abrasive media blasted onto a surface to clean dirt on the surface normally will release fine dust into the environment. Water is used with abrasive media to reduce the dust release into the environment and named as wet abrasive blasting process. However, water causes corrosion to metal surface. In this study, analysis of RBD palm olein as an alternative to the use of water in wet abrasive blasting process was investigated. The analysis in this study covers performance of cleaning process, personal dust exposure reduction, emission rate reduction and corrosion inhibition. In this research, the performance of RBD palm olein abrasive blasting was evaluated using ISO 8501-1 visual assessment method. Abrasive blasting workers’ exposure level to the dust release from abrasive blasting activity was determined using NIOSH Method 0500 dan 0600. EPA-42 was used to determine the emission rate in this research. XRD method was also used to determine the dust and material composition as described in the NIOSH Method NMAM 7500. To see the effectiveness of the RBD palm olein as a corrosion inhibitor, samples of tank were soaked using ASTM G31-72 method. In this process, the quality of RBD palm olein shows similar result to dry and wet abrasive blasting in cleaning performance. Exposure monitoring result shows that the workers’ exposure to dust release from RBD palm olein abrasive blasting reduced drastically and recorded only 21.11% inhalable dust and 22.82% for respirable dust compared to the result recorded in dry abrasive blasting. The emission rate was also decreased. Result and analysis from XRD show the composition of quartz-silica has exceeded the permission level on material although the silica composition decreased in dust sample during abrasive blasting. Samples soaked in RBD palm olein for 48 hours did not show any corrosion development. In conclusion, RBD palm olein can be a new and sustainable alternative in the metal surface cleaning process in the industries.
| Item Type: | Thesis (Doctoral) |
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| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering |
| Depositing User: | Mrs. Sabarina Che Mat |
| Date Deposited: | 06 Jun 2021 07:37 |
| Last Modified: | 05 Jul 2021 02:08 |
| URI: | http://eprints.uthm.edu.my/id/eprint/8 |
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