Are test burns needed for any kind of waste material to be co-processed?
Test burns with non-hazardous AFR are not a regulatory requirement but are sometimes done to evaluate the behavior of the process, the influence on main atmospheric emissions and the cement clinker quality when feeding AFR to the kiln. Test burns with hazardous compounds require however professional supervision and independent verification. The Stockholm and the Basel Convention will require a destruction efficiency test for kilns aiming to treat POPs or POPs containing waste.