13/06/2026
Chemical Tank Cleaning
Chemical tank cleaning is the process of removing chemical residues, sludge, contaminants, and hazardous vapors from a tank that has been used to store chemicals. The purpose is to make the tank safe for inspection, maintenance, repair, or reuse.
Typical steps:
1. Empty the tank completely.
2. Isolate and lock out all energy sources (LOTO).
3. Test the atmosphere for oxygen levels, flammable gases, and toxic gases.
4. Ventilate the tank adequately.
5. Wash or clean the tank using suitable cleaning agents or methods.
6. Collect and dispose of waste according to environmental regulations.
7. Inspect the tank and verify that it is clean and safe before returning it to service.
⚠️ Chemical tank cleaning is often classified as a high-risk activity and may involve confined space entry, requiring a work permit, appropriate PPE, gas monitoring, and a standby rescue team.