找考题网-背景图
单项选择题

A.25-50ppm余氯浸泡30min或70-75℃热水循环消毒30minB.25-50ppm余氯浸泡30mi……

精滤器出水微生物超标处理措施:()

A.25-50ppm余氯浸泡30min或70-75℃热水循环消毒30min
B.25-50ppm余氯浸泡30min或80-85℃热水循环消毒30min
C.50-150ppm余氯浸泡30min或80-85℃热水循环消毒30min
D.50-100ppm余氯浸泡30min或70-75℃热水循环消毒30min