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首页> 外文期刊>Journal of Polymers and the Environment >Efficiency of Modified Composite Biosorbent for Bioremoval of Phosphate Ions in Aqueous Area: Process Modeling Studies
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Efficiency of Modified Composite Biosorbent for Bioremoval of Phosphate Ions in Aqueous Area: Process Modeling Studies

机译：改性复合生物吸附剂对水域中磷离子的生物去除效率：过程建模研究

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This paper was focused on the biosorption of phosphate ions from aqueous solution onto the cetyltrimethylammonium bromide (CTAB) modified multi-component biosorbent composed of pine, oak, hornbeam and fir sawdust biomasses. A series of batch tests were conducted and the effects of solution pH, ion concentration, quantity of biosorbent and contact time on the bioremoval of phosphate ions were investigated. The biosorption data of kinetic and equilibrium were modeled using various mathematical equations. The phosphate removal increased with increased ion concentration and decreased with increased pH and biosorbent quantity values. The equilibrium state was reached within 120 min of exposure time. The process kinetics was best described by Elovich model while the isotherm data of biosorption best obeyed Freundlich equation. The obtained results revealed that the use of CTAB modified mix sawdust biosorbent presented interesting options for bioremediation of contaminated environments and waste recycling (as nutrient fertilizer and compost material).
机译：本文重点研究了水溶液中的磷酸根离子对十六烷基三甲基溴化铵（CTAB）改性的多组分生物吸附剂的生物吸附作用，该生物吸附剂由松树，橡树，角树和锯木屑生物质组成。进行了一系列的分批测试，研究了溶液的pH值，离子浓度，生物吸附剂的量和接触时间对磷酸根离子生物去除的影响。使用各种数学方程对动力学和平衡的生物吸附数据进行建模。磷酸盐去除量随离子浓度的增加而增加，而随pH值和生物吸附量值的增加而减少。暴露时间120分钟内达到平衡状态。过程动力学最好用Elovich模型描述，而生物吸附等温线数据最好服从Freundlich方程。获得的结果表明，使用CTAB改性混合木屑生物吸附剂为污染环境的生物修复和废物回收（作为营养肥料和堆肥材料）提供了有趣的选择。

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