Adding available bromine 25 mg/L to the hospital sewage and allowing it to dwell for 1 h could reduce fecal coli-group in the sewage from >23 800 MPN/L before disinfection to less than 900 MPN.

• 在医院污水中加入有效溴25 mg/L作用1 h,可使污水中粪大肠菌群由消毒前的>23800 MPN/L下降至900 MPN/L以下。