Proper disposal of filter elements
Environmental legislation on waste provides that the “waste producer” shall be responsible for the classification of the waste, to be performed by way of a “waste analysis”, in compliance with current legislation.
The primary reasons for performing waste classification analysis are:
- to list the hazard stages of the waste, if any
- to show the competent authorities that the waste is not hazardous, should the waste producer decide to dispose of it using an EWC (European Waste Catalogue) code identifying it as “non–hazardous waste”.
SagiCofim cannot indicate or recommend European waste codes, because:
- they cannot be referred to the end use,
- they cannot be referred to the customer’s industrial category,
- they cannot be referred to the quantities of accumulated contaminants,
- the codes, for internal corporate use, would not be congruent with the end user’s technical-industrial situation
Since exhausted filters are of a technical-industrial origin, they cannot be assimilated with municipal solid waste. Therefore, they are to be delivered to specialised waste disposal sites.
Filtration section products can be divided into 4 main waste disposal categories:
- Synthetic filters
- Activated carbon filters
- Glass microfibre filters
- Impregnated activated carbon filters
1. Synthetic filters
These filters are composed of filter media and frames, made of plastic, wood, or metal, all of which is non-hazardous.
If they are contaminated with ambient air, under normal conditions, they are unlikely to acquire any hazardous characteristics.
2. Activated carbon filters
These filters are composed of metal frames and various types of plastic parts, all of which is non-hazardous. Even the filter media is non-hazardous, being natural, steam-activated carbon.
If the filters are contaminated with ambient air or harmless gases (kitchen fumes), they will not acquire any hazardous characteristics.
3. Glass microfibre filters
These filters are composed of metal frames and various types of plastic parts, all of which is non-hazardous. The filter media is made of glass microfibre.
An analysis is required for the filter and any pollutants collected.
4. Impregnated activated carbon filters
These filters are composed of metal frames and various types of plastic parts, all of which is non-hazardous. The activated carbon is impregnated with chemical compounds that neutralise the specific gases to be retained.
At the end of their service life they are hazardous waste, which must be analysed.