富氧型等离子空气消毒器对猪舍空气微生物和有害气体消除作用研究OA

In order to study the effect of an oxygen-enriched plasma air sterilizer on the elimination of airborne microorganisms and harmful gases in pigsties,an oxygen-rich plasma air sterilizer was installed in the pig house on a selected farm in Shanghai.The numbers of total bacteria,Escherichia coli and Staphylococcus aureus in the air aerosol and airborne bacterial flora in the pig house,and the concentration of harmful gases in the house were measured before and after the use of the oxygen-rich plasma air sterilizer.The results showed that the oxygen-enriched plasma air disinfector exhibited a good inactivation effect on airborne microorganisms in the pig house.After continuous operation for 48 h,the reduction rates of total bacteria,Escherichia coli,and Staphylococcus aureus in airborne aerosols were 93.54%,91.81%,and 93.18%,respectively.The reduction rates of total bacteria,E.coli,and S.aureus in airborne sedimentation bacteria were 89.52%,91.54%,and 92.17%,respectively.In addition,the removal rates of ammonia(NH3)and hydrogen sulfide(H2S)were 65.64%and 100%,respectively.The study showed that the air sterilizer had a good effect on eliminating air microorganisms and harmful gases in pig house.Therefore,this type of oxygen-enriched plasma air sterilizer was recommended to be installed in pig houses.