| 食用菌菌糠对重金属离子的吸附性 |
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| 引用本文： | 孙玉寒,周飞,王钦钦,任芸芸.食用菌菌糠对重金属离子的吸附性[J].西安工程科技学院学报,2011,25(1). |
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| 作者姓名： | 孙玉寒 周飞 王钦钦 任芸芸 |
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| 作者单位： | 西安工程大学环境与化学工程学院; |
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| 摘 要： | 利用廉价生物吸附剂去除污水中Pb2+和Zn2+的技术,研究了食用菌菌糠的吸附特性,调查污水pH、重金属初始浓度、吸附剂用量、吸附时间和温度对其吸附性能的影响.结果表明,在食用菌菌糠吸附剂用量分别为16g/L和12g/L,pH值分别为5和6,初始重金属质量浓度为20mg/L,吸附时间为3h,25℃条件下,达到了最大吸附量,对Pb2+和Zn2+的去除率分别达到92.79%和88.96%,处理后的Pb2+和Zn2+质量浓度分别为1.442mg/L和2.208mg/L,接近污水综合排放标准(GB8978—1996)中的排放质量浓度1mg/L和2mg/L.食用菌菌糠对Pb2+和Zn2+的吸附等温线符合Fleundlich模式.
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| 关 键 词： | 生物吸附 食用菌菌糠 重金属离子 水处理 |
Adsorption of spent mushroom substrates to heavy metal ion |
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| SUN Yu-han,ZHOU Fei,WANG Qin-qin,REN Yun-yun.Adsorption of spent mushroom substrates to heavy metal ion[J].Journal of Xi an University of Engineering Science and Technology,2011,25(1). |
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| Authors: | SUN Yu-han ZHOU Fei WANG Qin-qin REN Yun-yun |
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| Abstract: | By using the technology of low-cost biosorbent for remove Pb2+ and Zn2+ in wastewater,the adsorption of spent mushroom substrates was studied.The effect of different parameters such as pH,initial concentration of heavy metals,adsorbent dosage,adsorption time,and temperature to the adsorption ability were investigated.The results show that(1) The adsorption efficiency of Pb2+ could reach 92.79% at the following optimum conditions: adsorbent dosage 16g/L,pH 5,initial concentration of heavy metals 20mg/L,adsor... |
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| Keywords: | biosorbent spent mushroom substrates heavy metal ion water treatment |
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