期刊论文

Technical studies on the emergency treatment of formaldehyde polluted drinking water by chemical oxidation method

中文

工业水处理

1005-829X

2018

38

9

29-32

中央级公益性科研院所基本科研业务专项(PMzx097-201701-033) 广东省省级科技计划项目(2016B020240007) 广州市科技计划项目(201508020078) 广东省自然科学基金(2014A030313761)

本校为第一机构

采用化学氧化法应急处理甲醛污染饮用水源,探讨H_2O_2、NaClO、Ca(ClO)_2、KMnO_4、K_2FeO_4这5种氧化剂在典型浓度下投加量、pH、时间、温度等反应条件对甲醛废水的去除效果并找出最佳工艺条件。结果表明,H_2O_2、NaClO、 Ca(ClO)_2可作为应急处理甲醛污染饮用水源的药剂,典型浓度下处理的最佳工艺条件:常规pH条件下反应30 min,当水中甲醛浓度依次超标10、20、50、100、200、500、1 000倍时,0~20℃时分别投加20 g/L Ca(ClO)_2、100 mL/L NaClO(8%)、25 g/L Ca(ClO)_2、200 mL/L NaClO、100 g/L Ca(ClO)_2、300 mL/L NaClO、400 mL/L NaClO;20~35℃时适宜投加H_2O_2(30%),分别投加60、100、120、...

The chemical oxidation method has been used for the emergency treatment of formaldehyde polluted drinking water sources. The removing effects of five kinds of oxidants,including H_2O_2,NaClO,Ca(ClO)_2,KMnO_4 and K_2FeO_4,on formaldehyde wastewater,under the following reaction conditions,such as dosages with typical concentrations, pH value,reaction time,temperature,initial concentration of pollutants,etc.,as well as the optimal process conditions, have been investigated. The results show that H_2O_2,NaClO and Ca(ClO)_2 can be used as the best c...