During primary and secondary manufacturing, waste trimmings are often burned to power the manufacturing process, and the final disposal of the product is often at an industrial power plant. Industrial boiler and incinerator facilities are having difficulty getting permits, and boiler companies are having difficulty meeting performance guarantees. This is due to emissions of volatile organics, and damage to the boiler due to slagging and corrosion when using manufactured wood products. Similarly, photofinishing is a large industry typically involving relatively small sites. Photofinishing plant effluents contain various organic and inorganic compounds, making disposal via municipal wastewater treatment inadequate.
Combustion appears to be the only other low cost solution.
The approach here is to concentrate the effluent by evaporation and incinerate it in a rotary kiln, thereby destroying the organics and binding the inorganics to the cement materials. The cube feeder was improved so that the feed rate was accurately controlled and measured. The following conclusions have been drawn. For exit temperatures below 650 C the benzene and toluene emissions increased rapidly. There was little difference between wood, plywood, and particleboard for lean combustion.