摘要
通过模拟高效涡流澄清池的水力条件,研究了氧化剂次氯酸钠的投加量、预氧化时间及混凝剂氯化铁(FeCl)3和聚合氯化铝(PAC)不同的投加量等对除砷效果的影响,从而为高效涡流澄清池除砷的可行性提供试验依据。试验结果表明,在模拟高效涡流澄清池水力条件下,投加次氯酸钠10 mg/L预氧化10 min后,投加氯化铁15 mg/L,可以使原水砷浓度从100μg/L降低至10μg/L以下。
Effect of arsenic removal in the simulation of efficient-whirling clarifier＇s hydraulic conditions by 4 factors were studied,which respectively included the oxidant＇s dosage of sodium hypochlorite（NaClO）,time of preliminary treatment in oxidizing as well as the coagulants dosage of ferric chloride（FeCl3）and polymeric aluminum（PAC）,and accordingly to provide the optimum operations for efficient-whirling clarifier.Results showed that in the simulation,the concentration of arsenic was changed from 100 μg/L down to 10 μg/L when adding the dosage of sodium hypochlorite（NaClO）10 mg/L and ferric chloride 15 mg/L for 10 min of preliminary treatment in oxidizing.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第9期111-113,182,共4页
Environmental Science & Technology
基金
国家自然科学基金项目(50868005)
江西省自然科学基金项目(2008GZC0053)
关键词
高效涡流澄清池
除砷
次氯酸钠
氯化铁
efficient-whirling clarifier
arsenic removal
sodium hypochlorite
ferric chloride
