Effect of Compressed Steam Pumping on Disinfection of Sandpits Contaminated with Toxocara canis Eggs and Escherichia coli

Abstract

Effect of a steam pumping method was evaluated for disinfection of the sandpit (4×6m) contaminated with Toxocara eggs and Escherichia coli, using a modified agricultural soil disinfectant machine. Paper bags containing 20g of sand with 1, 000 T. canis eggs and 10⁵ CFU E. coli were deposited at the center and corners of the sandpit at levels of 0, 10, 20, 30, 40, and 50cm in depth. All the Toxocara eggs and E. coli were killed at the points where temperature reached 95°C or over. At the maximum depth of 50cm temperature reached to 95°C at 3 or 4h after starting the treatment.