HF Service in the glass industry
In this case study, we present a maintenance intervention carried out through the HF Service for a well-known Italian company in the glass industry. The customer, already equipped with an activated carbon filtration system, required a replacement of the filtering media to ensure consistent abatement performance and continuous plant operation.
Problems
- Gradual saturation of activated carbon over time
- Decrease in pollutant abatement efficiency
- Need to maintain consistent performance
- Requirement for scheduled maintenance to avoid performance drops in production lines
- Need for safe handling during emptying and refilling operations
HF Service intervention
- Managed carbon quantity: 15,000 kg
- Replacement mix: 80% regenerated carbon | 20% virgin carbon
- Extraction system: vacuum through top access hatches
- Material collection: hopper + big bags
HF Service carried out the complete replacement of the activated carbon, including removal of the saturated material through vacuum extraction, internal cleaning of the tank, and restoration of the filtration section. The exhausted carbon was extracted using a vacuum system inserted through the top access hatches, allowing controlled removal and transfer into big bags for disposal. Once emptied, the unit was thoroughly cleaned and inspected before being refilled with an optimized mix of regenerated and virgin activated carbon. The “before and after” comparison clearly shows the full restoration of filtration efficiency. The intervention was scheduled based on the level of saturation, determined through periodic sampling and laboratory analysis.
- Restoration of the system’s abatement efficiency
- Optimization of filtration performance
- Reduced risk of performance drop
- Cost optimization through the use of regenerated carbon
- Extended service life of the plant
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