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| 城市生活垃圾焚烧炉渣对水体中磷的去除效果 | |
| 引用本文： | 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. |
| 作者姓名： | 邱德斌 李勇 潘继征 张后虎 徐宪根 |
| 作者单位： | 1. 苏州科技学院环境科学与工程学院,江苏苏州,215011 2. 中国科学院南京地理与湖泊研究所,江苏南京,210008 3. 环境保护部南京环境科学研究所,江苏南京,210042 4. 中国科学院南京地理与湖泊研究所,江苏南京210008;中国科学院研究生院,北京100049 |
| 基金项目： | 国家自然科学基金，国家水体污染控制与治理科技重大专项 |
| 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. |
| 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 |
Study on phosphorus removal from aqueous solution with urban incinerator slag |
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| QIU De-bin , LI Yong , PAN Ji-zheng , ZHANG Hou-hu , XU Xian-gen.Study on phosphorus removal from aqueous solution with urban incinerator slag[J].Guangdong Agricultural Sciences,2013,40(13):165-168. | |
| Authors: | QIU De-bin LI Yong PAN Ji-zheng ZHANG Hou-hu XU Xian-gen |
| Abstract: | 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. |
| Keywords: | incinerator slag phosphorus adsorption isotherm equation phosphorus desorbility heavy metal leaching |
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