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水中壬基酚的吸附去除實(shí)驗(yàn)研究

發(fā)布時(shí)間:2018-08-04 21:50
【摘要】:水體中壬基酚的存在危害著人類(lèi)的健康,因此研究出一種經(jīng)濟(jì)、有效的壬基酚去除方法迫在眉睫。通過(guò)對(duì)多種吸附劑的比較,選定松針作為吸附劑,以此來(lái)去除水體中的壬基酚。以靜態(tài)實(shí)驗(yàn),考察溫度,時(shí)間,pH值,吸附劑用量等條件對(duì)吸附行為的影響,同時(shí)進(jìn)行相應(yīng)的吸附動(dòng)力學(xué)分析和吸附熱力學(xué)分析。研究表明,當(dāng)濃度為10mf/L,溫度25℃,pH為7,吸附劑投加量為10g時(shí),去除率達(dá)到96%以上。吸附過(guò)程符合Freundlich吸附等溫線(xiàn),一次動(dòng)力學(xué)吸附模型。以動(dòng)態(tài)實(shí)驗(yàn),考察進(jìn)水流速,濃度等條件對(duì)吸附過(guò)程的影響,確定穿透時(shí)間和穿透點(diǎn),建立相應(yīng)的動(dòng)態(tài)吸附模型,為工業(yè)應(yīng)用奠定理論基礎(chǔ)。
[Abstract]:The existence of nonylphenol in water is harmful to human health, so it is urgent to develop an economic and effective nonylphenol removal method. By comparing various adsorbents, pine needles were selected as adsorbent to remove nonylphenol from water. The influence of temperature, time, pH value and the amount of adsorbent on the adsorption behavior was investigated by static experiment. The adsorption kinetics and thermodynamics were also analyzed. The results show that the removal rate is over 96% when the concentration is 10 MF / L, the temperature is 25 鈩,

本文編號(hào):2165273

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