【摘 要】
：
采用本实验室自制的羊骨基活性炭,研究其在不同吸附时间、不同溶液初始浓度、不同投加量、溶液不同的pH值条件下对Pb(Ⅱ)的吸附规律。结果表明:当Pb(Ⅱ)溶液的初始浓度为80mg
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采用本实验室自制的羊骨基活性炭,研究其在不同吸附时间、不同溶液初始浓度、不同投加量、溶液不同的pH值条件下对Pb(Ⅱ)的吸附规律。结果表明:当Pb(Ⅱ)溶液的初始浓度为80mg/L、活性炭投加量为0.10g、吸附时间为6h、溶液温度为45℃时,羊骨基活性炭对Pb(Ⅱ)的去除率高达99%。利用Langmuir吸附等温模型和Freundlich吸附等温模型对其吸附性能的表征得出:羊骨基活性炭对溶液中Pb(Ⅱ)的吸附行为符合Langmuir吸附等温模型和Freundlich吸附等温模型,并且吸附等温曲线在Brunauer五种类型的等温吸附线中比较符合多分子层吸附等温线。
The sheep bone-based activated carbon made in our laboratory was used to study the adsorption of Pb (Ⅱ) to Pb (Ⅱ) under different adsorption time, initial concentration of different solutions, different dosages and different pH values. The results showed that when the initial concentration of Pb (Ⅱ) solution was 80 mg / L, the amount of activated carbon added was 0.10 g, the adsorption time was 6 h and the solution temperature was 45 ℃, the removal rate of Pb (Ⅱ) 99%. The results of Langmuir adsorption isotherm model and Freundlich adsorption isotherm model showed that the adsorption behavior of Pb (Ⅱ) in sheep bone was in accordance with the Langmuir isotherm model and the Freundlich adsorption isotherm model, and the adsorption isotherm curve was in Brunauer The five types of isotherm adsorption lines are more in line with the multi-layer adsorption isotherm.
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