Dioxins and furans

Example: Scrap copper recycling, cobalt for battery production
Similar tasks: Metal recycling, roast processes, thermal waste disposal

When recycling metals - as in scrap copper recycling (mostly cable material) - toxic waste gases often occur. The raw materials to be recycled are injected in a shaft kiln that emits dust, organic contaminants, carbon monoxide, dioxins as well as furans. A high temperature bag house, a regenerative thermal oxidizer (RTO) with preheated raw gas, as well as a fixed bed adsorber which is regenerated via the RTO, all purify this complex waste gas. The carbon monoxide part of 3-6 g/Nm³ generates an auto-thermal operation (additional burner switched off) which ensures an especially economical operation of this highly efficient installation. The toxicity of the waste gas requires the highest destruction efficiency and a leak-proof RTO. This is guaranteed through a special valve construction and a hermetically sealed system. The fumes are recycled during the burn-off.

When producing high quality batteries for electronic appliances, cobalt is needed. Cobalt is produced from metal chloride in a roasting process where dioxins, furans and several other contaminants occur. The required high destruction efficiency is accomplished through a specially designed catalytic oxidizer that is completely sealed and has no moving parts (Residual contamination in the purified gas < 0.1 toxic equivalent (TEQ) ng/Nm³).

Summary: CTP's expertise in catalytic, adsorptive and regenerative thermal oxidation technology in nano gram purification makes it the best partner for these hazardous industrial processes. 

The toxicity of the waste gas requires highest destruction efficiency