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以地下水源水中真菌为研究对象,研究了单独氯灭活、单独臭氧灭活以及臭氧-氯顺序灭活的灭菌效果,并用Berenbaum公式判断了2种消毒剂联合作用的性质,同时考察了预臭氧浓度和预臭氧时间对灭活效果的影响。结果表明:单独氯灭活时,当Ct=40 min·mg·L-1时,真菌存活率仅为7%;单独臭氧灭活时,当Ct=9 min·mg·L-1时,真菌存活率仅为10%;与单独消毒剂灭活相比,臭氧-氯顺序灭活对真菌的灭活效果更明显,1.0 mg·L-1臭氧作用1 min后接2.0 mg·L-1氯作用5 min,真菌存活率仅为11.7%;用Berenbaum公式计算得出臭氧和氯顺序灭活真菌是一种协同作用,且随着预臭氧浓度的增大、预臭氧时间的延长,灭活效果越好,协同作用越强。
Taking the fungi in groundwater as the research object, the sterilization effects of single chlorine inactivation, single ozone inactivation and sequential inactivation of ozone-chlorine were studied. The Berenbaum formula was used to judge the combined action of the two disinfectants. Meanwhile, Effect of ozone concentration and pre-ozone time on inactivation. The results showed that the survival rate of fungi was only 7% when Ct = 40 min · mg · L-1, while when Ct = 9 min · mg · L-1, The survival rate was only 10%. Compared with the single disinfectant inactivation, sequential inactivation of ozone-chlorine had a more obvious effect on the inactivation of fungi. 2.0 mg · L-1 chlorine was obtained after 1.0 mg · L-1 ozone was applied for 1 min The fungal survival rate was only 11.7% after 5 min. The orderly inactivation of ozone and chlorine by Berenbaum formula was a synergistic effect. With the pre-ozone concentration increasing, the pre-ozone time prolonged and the inactivation effect The better, the stronger the synergy.