Removing formaldehyde from embalmed cadavers by percolating the body cavities with dilute ethanol.

The study explores a technique for removing formaldehyde from embalmed animal cadavers using 20% ethanol. It also discusses the process of testing and quantifying the concentration of formaldehyde left after treatment.

Methodology

• The subjects of this experiment were 4 goats, 4 cows, and 4 horses, all embalmed with formaldehyde.
• The animal cadavers were subjected to a process of ethanol percolation, with 20% ethanol being pumped through the pleural and peritoneal cavities.
• In the case of the goats, the percolation process was carried out intermittently over a span of 7 days, while for the larger animals, like cows and horses, it was carried out continuously for 72 hours.

Procedure for measuring formaldehyde concentration

• After the percolation process, the body cavities were opened and samples of air in close proximity to the organs were collected.
• The air samples were then analyzed to determine the concentration of formaldehyde.
• A spectrofluorimetric method was used for this analysis, a process used for quantifying the concentration of particles through the interaction between light and matter.

Results

• The average concentrations of formaldehyde in the collected air samples from the goats were found to be 0.45 ± 0.44 micrograms per liter.
• For the cows, the concentration was 0.42 ± 0.29 micrograms per liter, and for the horses, it was 0.43 ± 0.25 micrograms per liter.
• These results suggest that the percolation process was successful in removing a significant portion of the formaldehyde from the embalmed animal bodies.

Implications and Future Research

• This research provides a promising approach for addressing the issue of formaldehyde residue in embalmed animal bodies.
• Future research in this area could possibly consider other methods of delivering the ethanol or the possible use of different agents in place of ethanol to achieve better results.
• Moreover, the potential health implications of the remaining formaldehyde concentrations and the viability of this method for large-scale applications should also be investigated.