The invention relates to a bactericidal and algaecidal composition for an intermediate water
system, a prepration method and an application thereof, wherein, the composition comprises the following components of bisquaternary
ammonium salt, modified quatemary
ammonium salt, penetrating agent, synergist and water, wherein, the water is used as a
solvent. The bactericidal and algaecidal compositioncan effectively prevent the propagation of
bacteria and
algae and other phenomena in cooling water. The bactericidal and algaecidal composition simultaneously has the roles of stripping slime, removing
odor and the like. The result shows that the composition has significant bactericidal and algaecidal effects, the bactericidal rate of
heterotrophic bacteria,
iron bacteria, ammonifying
bacteria andsulfate-reducing
bacteria can be more than 95%, the
bactericidal effect is excellent, the composition is applicable to
water quality with complicated change (high high-temperature and float indicators, high
ammonia nitrogen indicators, high oil indicators and high
organic phosphorus indicators), a wide range of fluctuations and the like, the
dose is small, and the excellent bactericidal and algaecidal requirements can be achieved by only 50-100mg / l. In addition, the product has small
toxicity and easy degradation. Therefor, the composition has good
economic benefits, environmental protectionbenefits and
social benefits for enterprises.