微酸性电解水对猪舍环境净化与无害化消毒的应用研究

irborne pathogens in animal houses are the severe issue for causing the diseases of animals. Spraying disinfectants is an important way to decontaminate bacteria in air and on facilities in animal houses. Slightly acidic electrolyzed water (SAEW, pH 5.0-6.5) is an ideal disinfectant for hygienic management in animal farms with non-corrosive, more stable to storage, inexpensive, no residuals, and a less potential health hazard to the worker due to the lack of Cl2 off-gassing. The bactericidal efficiency of SAEW was compared with the chemical disinfectants which are commonly used in the pig farms. Results indicate that a 59.2% reduction of total airborne bacteria population in the pig house was resulted by spraying SAEW with a pH 6.25-6.53, oxygen reduction potential of 887.5-924.8 mV, and available chlorine concentration of 300 mg/l. But the population of airborne bacteria was reduced about 48.7% and 25.9% by the strong disinfectant powder and povidone-iodine solution, respectively. Moreover, SAEW was more effective to remove the bacteria on the ground, pens and wall of pig houses compared to the two chemical disinfectants (P < 0.05). Therefore, SAEW is a promising disinfectant agent instead of chemicals for decontamination and disinfection of pig houses without environmental pollution.