摘要
采用混凝剂硫酸铝和氯化铁,研究了混凝剂活性污泥法的长期除磷效果,对两种混凝剂除磷性能进行了比较。研究表明,在混凝剂活性污泥法中,硫酸铝的稳定投药量为80 mg/L,与生物不具协同作用;氯化铁的稳定投药量为50 mg/L,与生物具有协同作用。在活性污泥反应器中,氯化铁的除磷性能好于硫酸铝。硫酸铝和氯化铁混凝剂不仅没有明显影响生物脱氮效果,而且能提高有机物的去除效果。
Aluminum sulfate and ferric chloride were used to investigate long-term phosphorus removal effect of using coagulant activated sludge.Phosphorus removal effects of two kinds of coagulants were compared.Results showed that the steady dosage of aluminum sulfate is 80 mg/L,there was no cooperative effect.The steady dosage of ferric chloride is 50 mg/L,there was cooperative effect.Phosphorus removal effect of ferric chloride was better than that of aluminum sulfate.Aluminum sulfate and ferric chloride does not affect biological nutrient removal effect,and can improve the effect of removing organics.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第4期155-158,共4页
Environmental Science & Technology
基金
广东省自然科学基金重点项目资助(9251009101000001)
广东省自然科学基金项目资助(81510091010000159151009101000021)
关键词
混凝剂
活性污泥
硫酸铝
氯化铁
除磷
coagulant
activated sludge
aluminum sulfate
ferric chloride
phosphorus removal
