松木鋸末吸附富營(yíng)養(yǎng)化水體中磷的改性方法
發(fā)布時(shí)間:2018-07-29 10:27
【摘要】:采用改性后的松木鋸末作為吸附劑,對(duì)富營(yíng)養(yǎng)化水體的模擬水樣中的磷進(jìn)行吸附去除,優(yōu)化了吸附劑的改性條件。實(shí)驗(yàn)結(jié)果表明,1 g鋸末所需的改性試劑的最佳相對(duì)用量分別為:二甲胺水溶液10 m L、吡啶7.5 m L、環(huán)氧氯丙烷20 m L、N,N-二甲基甲酰胺30 m L;各階段的最佳時(shí)間分別為:第三階段時(shí)間1.5 h、第二階段1 h、第一階段1 h。在優(yōu)化的實(shí)驗(yàn)條件下,改性松木鋸末對(duì)富營(yíng)養(yǎng)化水體的模擬水樣中磷的去除率可達(dá)90%以上。
[Abstract]:The modified pine sawdust was used as adsorbent to remove phosphorus from eutrophication water samples and the modification conditions of the adsorbent were optimized. The experimental results show that the optimum relative dosage of the modified reagent for 1 g sawdust is 10 mL of dimethylamine solution, 7.5 mL of pyridine, and 20 mL of epichlorohydrin, and the optimum time of each stage is 30 mL, respectively, of dimethylamine solution, pyridine 7.5 mL and epichlorohydrin 20 mL, respectively. The time of the third stage was 1.5 hours, the second stage was 1 hour, and the first stage was 1 hour. Under the optimized experimental conditions, the phosphorus removal rate of the simulated eutrophication water samples from the modified pine sawdust can reach more than 90%.
【作者單位】: 河北大學(xué)化學(xué)與環(huán)境科學(xué)學(xué)院;
【基金】:十二五國(guó)家重大水專項(xiàng)(2012ZX07203-003-Z02)資助
【分類號(hào)】:X52
[Abstract]:The modified pine sawdust was used as adsorbent to remove phosphorus from eutrophication water samples and the modification conditions of the adsorbent were optimized. The experimental results show that the optimum relative dosage of the modified reagent for 1 g sawdust is 10 mL of dimethylamine solution, 7.5 mL of pyridine, and 20 mL of epichlorohydrin, and the optimum time of each stage is 30 mL, respectively, of dimethylamine solution, pyridine 7.5 mL and epichlorohydrin 20 mL, respectively. The time of the third stage was 1.5 hours, the second stage was 1 hour, and the first stage was 1 hour. Under the optimized experimental conditions, the phosphorus removal rate of the simulated eutrophication water samples from the modified pine sawdust can reach more than 90%.
【作者單位】: 河北大學(xué)化學(xué)與環(huán)境科學(xué)學(xué)院;
【基金】:十二五國(guó)家重大水專項(xiàng)(2012ZX07203-003-Z02)資助
【分類號(hào)】:X52
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