论文部分内容阅读
造纸白水中含有可溶性有机物,如纤维悬浮液(五碳糖、六碳糖)、木质素和腐殖酸以及各种添加助剂,如施胶剂、变性淀粉、染料和填料等,为微生物的生长繁殖提供了大量的营养物质,白水的温度和pH也适合微生物的生长,所以白水中微生物的数量相当大(107~109cfu/mL),是造纸系统形成腐浆、从而引起各种纸病(断纸、洞眼、针眼等)的主要原因之一。为了寻找高效、广谱和低成本的环境友好型新型杀菌剂,该研究在调查了几种杀菌剂对造纸白水中主要微生物的杀菌效果,发现卡松(异噻唑啉酮)与1227(阳离子表面活性剂)联合使用优于单独使用卡松和1227,能够增强杀菌效果,当5.7mg/L的卡松与70mg/L的1227联合使用时,对细菌的杀灭效果达到99.6%。
Papermaking white water contains soluble organic matter, such as fiber suspension (five carbon, six carbon), lignin and humic acid and various additives, such as sizing agents, modified starch, dyes and fillers, etc. for the microbial Growth and reproduction provide a large number of nutrients, white water temperature and pH are also suitable for the growth of microorganisms, so a large number of white water microbes (107 ~ 109cfu / mL), the papermaking system to form a slurry, causing a variety of paper diseases Broken paper, hole, pinhole, etc.) one of the main reasons. In order to find efficient, broad-spectrum and low-cost environment-friendly novel bactericides, this study investigated the bactericidal effect of several bactericides on the main microbes in paper-making white water. It was found that the ratio of catharanthrene (isothiazolone) to 1227 Active agent) is superior to that of Cassia and 1227 alone, which can enhance the bactericidal effect. When combined with Cassia at 5.7 mg / L and 1227 at 70 mg / L, the killing effect on bacteria is up to 99.6%.