MERCURY(II) SORPTION BY WASTE RUBBER
MERCURY(II) SORPTION BY WASTE RUBBER
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DOI：
10.1016/0043-1354(81)90121-4
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发表时间：
1981-01-01
期刊：
影响因子：
12.8
通讯作者：
HEMPHILL, LH
中科院分区：
文献类型：
--
作者：
KNOCKE, WR;HEMPHILL, LH
研究了废轮胎橡胶去除溶液中有机汞的能力。将硫化轮胎橡胶的样品磨成合适的吸附剂尺寸，并用于批量吸附研究。研究参数包括水汞浓度、橡胶吸附剂粒径、溶液温度和氢离子浓度。为了确定吸附机理，还对其他无s橡胶材料进行了评价。研究表明，轮胎橡胶是一种有效的废溶液中汞的吸附材料。在研究的参数中，pH是最重要的，最佳pH范围为5.5-6.0，以达到良好的脱汞效果。汞通过橡胶吸附剂孔隙的扩散是汞吸收的限速步骤。无s橡胶材料对无机汞的去除同样有效。
Studies were conducted to assess the capability of waste tire rubber for removing organic Hg from solution. Samples of vulcanized tire rubber were ground to a suitable sorbent size and utilized in batch sorption studies. Research parameters included aqueous Hg concentration, rubber sorbent particle size, solution temperature and H ion concentration. Alternate S-free rubber materials were also evaluated in an attempt to identify the sorption mechanism. The studies showed tire rubber to be an efficient sorbent material for Hg removal from waste solutions. Of the parameters investigated, pH was most crucial, with an optimum pH range of 5.5-6.0 for good Hg removal. The diffusion of Hg through pores in the rubber sorbent was the rate limiting step regarding Hg uptake. S-free rubber materials were equally efficient for inorganic Hg removal.