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Air Pollution Control Residues

June 2019


One key byproduct of concern to a range of companies in different sectors is the filter dust and Electrostatic Precipitator (EP) dust known as Air Pollution Control residues (APCr), a fine powder that is collected from the emissions abatement process. It is classified as hazardous waste because of its high lime content.


The requirement to control emission composition impacts on several manufacturers as well as the energy production sector. Companies with large furnaces (such as waste incinerators, glassworks, cement plants etc) are required by law and Best Available Technique limits to reduce acid gases (e.g. hydrogen chloride) or dusty materials (e.g. cement kiln dusts) within the gas stream by filters or electrostatic precipitators. Some of these wastes may contain dioxins and heavy metals which may be captured in the gas treatment residues.


Given that the processes resulting in APCr are different, it follows that the chemical composition of each material stream will differ. There are a limited number of EWC codes that these waste streams will fall into, the key ones shown in the table below:


10 02 07* - solid wastes from gas treatment containing dangerous substances (M)

(From iron & steel industry. Can contain heavy metals, dioxins & furans)


10 03 23* - solid wastes from gas treatment containing dangerous substances (M)

(From aluminium thermal processes. Can contain heavy metals, dioxins & furans)


10 04 06* - solid wastes from gas treatment (A)

(From lead thermal metallurgy processes)


10 11 15* - solid wastes from flue-gas treatment containing dangerous substances (M)

(From glass manufacturing. Can contain lime, acid gas salts or heavy metals.)


10 12 09* - solid wastes from gas treatment containing dangerous substances (M)

(From manufacture of ceramics, bricks, tiles and other construction materials. Can contain heavy metals and lime.)


10 13 12* - solid wastes from gas treatment containing dangerous substances (M)

(From manufacture of cement, lime and plaster and articles. An example is Cement Kiln Dust (CKD), a high-pH material that can contain highly caustic sodium and potassium oxides, heavy metals and chlorides from burning of chlorinated organics. Can also contain dioxins and furans.)


19 01 07* - solid wastes from gas treatment (A)

(From the incineration or pyrolysis of waste. Lime-based APCr are high-pH wastes that contain residual lime content, heavy metals and salts of acid gases (such as calcium chloride). Can also contain dioxins & furans.)

A summary of the arisings and disposal routes for these APCr can be found by clicking on the link below:


Click here for the APCr Summary Report


Footprint Services provides information on wood waste, RDF, energy from waste, food waste treatment and other waste streams - please get in touch for more information