ABSTRACT

In this paper, the bactericidal properties of three kinds of monomers of oxidizing bactericide NaClO and non-oxidizing bactericide geramine and isothiazolinones were studied. By means of compounding the oxidizing and non oxidizing bactericide monomers with different sterilization mechanisms, the mixture of 10 mg/L isothiazolinones and 1 mg/L NaClO was finally screened out. The circulating water bactericide formula has the characteristics of significant efficiency, stability and durability. The bactericidal performance of the compound bactericide was evaluated from three aspects: dosage, pH application range and environmental temperature. The results showed that the compound bactericide had the advantages of small dosage, wide application range and suitable for different temperatures, which met the requirements of industrial circulating water.