摘要
进行了粉煤灰吸附可溶性磷元素的实验研究。通过静态吸附实验,研究各个外部条件对粉煤灰吸附无机磷元素效果的影响对结果进行分析。实验表明,当粉煤灰投加量愈大、振荡强度愈强、溶液浓度愈低、反应时间愈长时滤料对待处理液中磷元素的去除率愈高。在初始浓度20mg.L-1,每40mL溶液中加入1.3g粉煤灰,处理40min,温度28.2℃,100 r.min-1条件下,去除率可以超过85%。而在处理低浓度废水时,粉煤灰也可用于工业废水处理,满足排放要求。
Raw fly ash was selected to absorb soluble phosphorus.By static adsorption experiments,various external conditions on the fly ash effect of inorganic phosphorus and analysis of experimental results was studied.Experiments showed that when increased the fly ash dosage,strengthened oscillator strength,and the lower concentration,longer reaction time,the removal rate of phosphorus in the treatment liquid was higher.When the initial concentration was 20mg/L,1.3g /40mL solution by adding fly ash,processing 40min,temperature of 28.2 ℃,100r/min,the removal rate could reached 85%.In the treatment of low strength wastewater,fly ash could also be used for industrial wastewater treatment to meet the emission requirements.
出处
《化工技术与开发》
CAS
2011年第2期51-54,共4页
Technology & Development of Chemical Industry
基金
南京林业大学大学生科技创新项目(编号200970)
关键词
粉煤灰
吸附
含磷废水
fly ash
adsorption
phosphorus wastewater
