| 邱德斌，李勇，潘继征，张后虎，徐宪根.城市生活垃圾焚烧炉渣对水体中磷的去除效果[J].广东农业科学,2013,40(13):165-168 |
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城市生活垃圾焚烧炉渣对水体中磷的去除效果 |
| Study on phosphorus removal from aqueous solution with urban incinerator slag |
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| DOI： |
| 中文关键词: 生活垃圾焚烧炉渣 磷吸附 等温方程 磷解析 重金属浸出 |
| 英文关键词: incinerator slag phosphorus adsorption isotherm equation phosphorus desorbility heavy metal leaching |
| 基金项目: |
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| 中文摘要: |
| 城市生活垃圾焚烧炉渣对水体中的磷有较好的去除效果，当初始磷浓度低于200 mg/L 时，炉渣对磷的去除率接近100%；当初始磷浓度为800 mg/L 时，炉渣对磷的去除率接近60%。炉渣对磷的吸附符合Langmuir 和Freundlich 等温吸附模型，相关系数均达显著水平。Langmuir 吸附等温线模拟炉渣的吸附磷性能优于Freundlich 模型，根据Langmuir方程计算出炉渣对磷的理论饱和吸附量为26 162 mg/kg。炉渣对磷的吸附受pH 值的变化影响不大，磷的解析率低，且其重金属浸出浓度低，环境安全性能优良。综上所述，生活垃圾焚烧炉渣是一种较为理想的除磷吸附剂。 |
| 英文摘要: |
| Urban waste incinerator slag showed good performance in dephosphorization. When initial phosphate concentration was less than 200 mg/L, the dephosphorization rate was nearly 100%, and the figure was nearly 60% at initial concentration of 800 mg/L.Langmuir and Freundlich isotherms were found to fit the data of phosphorus adsorption onto incinerator slag well at a significant level.And phosphorus adsorption was best described by the Langmuir model. Based on the Langmuir model, the maximum phosphorus adsorption capacities of incinerator slag was 26 162 mg/kg. The capacity of phosphorus adsorption was not affected by pH value, and it had a lower desorbility rate, and the heavy metal ion concentrations of the leachate of the incinerator slag were low. The results showed that urban waste incinerator slag was a good choice for removing phosphorus from aqueous solution. |
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