Abstract:

The effects of S^2-on the corrosion inhibitor,scale inhibitor and bactericide commonly used in circulating water have been studied by static tests.The results show that S^2-can obviously reduce the corrosion inhibiting capacity of common single-dosed corrosion inhibitor.Adding 100 mg/L of complex scale and corrosion inhibitor YSW105 could make the corrosion rate less than 0.1 mm/a,when S^2-concentration is less than 1 mg/L.S^2-has little influence on the capacities for CaCO₃ scale inhibiting Ca₃(PO₄)₂ scale inhibiting of water stablizers,but using copolymers frequently is difficult to stabilize zinc salts in water body that contains S^2-.S^2-has great effects on the bactericidal capacity for the commonly used bactericides.When S^2-concentration comes to 3 mg/L,it can basically make the bactericides lose their bactericidal capacity.

Key words: sulfide, corrosion inhibition, scale inhibition, sterilization

摘要：

通过静态实验研究了S^2-对循环水常用缓蚀、阻垢和杀菌剂性能的影响。结果表明:S^2-可使常见缓蚀单剂的缓蚀性能明显降低,在S^2-质量浓度低于1mg/L时,投加100mg/L复合缓蚀阻垢剂YSW105可使水体的腐蚀速度低于0.1mm/a;S^2-对水稳剂的阻碳酸钙垢和阻磷酸钙垢性能影响不大,常用共聚物难以在含S2-水体中稳定锌盐;S^2-对常用杀菌剂的杀菌性能影响均较大,质量浓度为3mg/L时即可使其基本丧失杀菌性能。

关键词: 硫离子, 缓蚀, 阻垢, 杀菌

CLC Number: 

• TQ085.4