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3064637 
Technical Report 
The combustion of waste containing DDT and Lindan [sic] 
Ahling, B 
1978 
PESTAB/78/0809 
Total Environ 
2 
PESTAB. A pilot combustion facility was used to investigate incineration of pesticides. The pesticides were dissolved in isopropanol, and LP-gas was used as support fuel. Unburned lindane ranged from 8.7 mg/kg initial feed, obtained with incineration for 4.6 sec at 800 C, to 62.3 mg/kg initial lindane feed, obtained when the lindane was mixed with sawdust and wood chips. In experiments with DDT, transit times of less than 1 sec markedly increased the amount of DDT remaining. When transit time was increased to about 1.4 sec at a temperature of 800 C, emissions were reduced to 0.7 mg DDT/kg DDT feed. At 3.2 sec at 800 C, emissions were further reduced to 0.5 mg DDT/kg DDT. At 700 C, 100 mg DDT/kg was emitted after a transit time of about 0.8 sec and 3.2 mg/kg after 1.8 sec. When residues of p,p'-DDT and p,p'-DDE are combined, incineration for about 0.8 sec produced a residue of 500 mg/kg at 800 C. Increasing the transit time to about 1.4 sec reduced the combined residue to 5 mg/kg. At 700 C a transit time of 0.7 sec produced a combined residue of about 6500 mg/kg. Increasing the transit time to 2 sec produced a combined residue of about 53 mg/kg.