The invention discloses a composite organophosphorus degrading
enzyme biological decontamination agent for
emergency rescue and decontamination operation at chemical disaster accident environmental scene. The decontamination agent mainly consists of organophosphorus
hydrolase, organophosphorus anhydride
hydrolase, diisopropyl
fluorine phosphatase, organochlorine degrading
enzyme and
trehalose, wherein all the components reach the following contents in percentages: 80-90% of organophosphorus
hydrolase, 3-5% of organophosphorus anhydride hydrolase, 2.5-3% of diisopropyl
fluorine phosphatase, 5-10% of organochlorine degrading
enzyme and 0.5-1% of
trehalose. The decontamination agent has the following advantages: compared with traditional chemical, physical and mechanical decontamination
modes, the composite organophosphorus degrading enzyme
biological decontamination agent has such advantages as no poison, no
corrosion, high
catalysis efficiency, low use level and wide application range, can be used for decontamination and disinfection for staff, clothes, equipment, soil and water sources polluted by organophosphorus, organochlorine and sulfides, in particular, is suitable for
emergency rescue and decontamination in
pesticide leakage accident scenes, and cannot cause secondary environmental
pollution.